FPUS55 KTFX 170912 ZFPTFX Zone Forecast Product for Central and Southwest Montana National Weather Service Great Falls MT 312 AM MDT Sun May 17 2026 Spot temperatures and probabilities of measurable precipitation are for today, tonight, and Monday. MTZ301-172200- East Glacier Park Region- Including the cities of East Glacier Park, Kiowa, Babb, Saint Mary, Marias Pass, and Logan Pass 312 AM MDT Sun May 17 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MDT SUNDAY NIGHT... .TODAY...Snow early in the morning, then snow likely late in the morning. Chance of snow in the afternoon. Snow accumulation of 1 to 6 inches. Total snow accumulation 1 to 11 inches. Highs 31 to 39. North winds 10 to 20 mph with gusts to around 45 mph. Chance of snow near 100 percent. .TONIGHT...Mostly cloudy with a 20 percent chance of snow in the evening, then partly cloudy after midnight. Lows 20 to 26. North winds up to 10 mph. Gusts up to 30 mph in the evening. .MONDAY...Not as cool. Partly sunny. Chance of snow showers, slight chance of rain and thunderstorms in the afternoon. Highs 40 to 50. North winds up to 10 mph. Chance of precipitation 40 percent. .MONDAY NIGHT...Partly cloudy. Lows 26 to 32. Southwest winds up to 10 mph. Gusts up to 25 mph after midnight. .TUESDAY...Mostly sunny. Chance of rain showers, snow showers and slight chance of thunderstorms in the afternoon. Highs 43 to 55. West winds 10 to 15 mph with gusts to around 35 mph. Chance of precipitation 50 percent. .TUESDAY NIGHT...Mostly cloudy. A 40 percent chance of rain and snow after midnight. Lows 30 to 36. .WEDNESDAY...Mostly cloudy. Chance of rain and snow in the morning, then rain and snow likely in the afternoon. Light snow accumulations. Highs 44 to 54. Chance of precipitation 70 percent. .WEDNESDAY NIGHT...Mostly cloudy with a 30 percent chance of rain and snow in the evening, then partly cloudy after midnight. Lows 32 to 38. .THURSDAY...Not as cool. Mostly sunny. A 20 percent chance of rain in the afternoon. Highs 48 to 60. .THURSDAY NIGHT...Mostly cloudy. Chance of rain showers and slight chance of thunderstorms in the evening, then chance of rain after midnight. Lows 35 to 41. Chance of precipitation 40 percent. .FRIDAY...Partly sunny. Chance of rain and snow in the morning, then chance of rain showers, snow showers and slight chance of thunderstorms in the afternoon. Highs 48 to 60. Chance of precipitation 50 percent. .FRIDAY NIGHT...Partly cloudy. A 20 percent chance of rain in the evening. Lows 35 to 41. .SATURDAY...Warmer. Mostly sunny. Highs 53 to 65. $$ MTZ307-172200- Southern Rocky Mountain Front- Including the city of Rogers Pass 312 AM MDT Sun May 17 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MDT SUNDAY NIGHT... .TODAY...Snow in the morning, then snow showers and slight chance of thunderstorms in the afternoon. Snow accumulation up to 6 inches. Total snow accumulation up to 7 inches. Highs 30 to 40. North winds 5 to 15 mph with gusts to around 45 mph. Chance of precipitation near 100 percent. .TONIGHT...Mostly cloudy. A 50 percent chance of snow in the evening. Lows 20 to 26. North winds up to 15 mph. Gusts up to 40 mph in the evening. .MONDAY...Not as cool. Partly sunny. Chance of snow showers and slight chance of thunderstorms in the afternoon. Highs 38 to 48. Northeast winds up to 10 mph. Chance of precipitation 40 percent. .MONDAY NIGHT...Partly cloudy. A 20 percent chance of snow in the evening. Lows 23 to 29. East winds up to 5 mph shifting to the southwest after midnight. .TUESDAY...Not as cool. Mostly sunny. Highs 43 to 55. West winds 5 to 15 mph with gusts to around 30 mph. .TUESDAY NIGHT...Mostly cloudy. Lows 28 to 34. .WEDNESDAY...Partly sunny. Chance of rain and snow in the morning, then chance of rain showers, snow showers and slight chance of thunderstorms in the afternoon. Highs 43 to 55. Chance of precipitation 50 percent. .WEDNESDAY NIGHT...Mostly cloudy with a 30 percent chance of rain and snow in the evening, then partly cloudy after midnight. Lows 30 to 36. .THURSDAY...Not as cool. Mostly sunny. Highs 48 to 60. .THURSDAY NIGHT...Partly cloudy with a 20 percent chance of rain. Lows 34 to 40. .FRIDAY...Partly sunny. Slight chance of rain in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 49 to 61. Chance of precipitation 50 percent. .FRIDAY NIGHT...Partly cloudy. A 20 percent chance of rain in the evening. Lows 34 to 40. .SATURDAY...Mostly sunny. Highs 53 to 65. $$ MTZ302-172200- Northern High Plains- Including the cities of Browning, Heart Butte, and Dupuyer 312 AM MDT Sun May 17 2026 .TODAY...Windy. Mostly cloudy. Snow likely in the morning, then chance of snow early in the afternoon. Slight chance of rain and snow late in the afternoon. Snow accumulation up to 3 inches. Total snow accumulation up to 5 inches. Highs in the lower 40s. North winds 15 to 30 mph with gusts to around 45 mph. Chance of precipitation 70 percent. .TONIGHT...Mostly cloudy in the evening then becoming partly cloudy. Lows in the mid 20s. Northwest winds 5 to 15 mph. Gusts up to 30 mph in the evening. .MONDAY...Not as cool. Mostly sunny. A 20 percent chance of rain in the afternoon. Highs in the lower 50s. Northwest winds up to 10 mph shifting to the east in the afternoon. .MONDAY NIGHT...Partly cloudy. Lows in the lower 30s. Southwest winds up to 10 mph. .TUESDAY...Mostly sunny. Highs in the upper 50s. Southwest winds 5 to 15 mph shifting to the west 15 to 20 mph in the afternoon. .TUESDAY NIGHT...Mostly cloudy. A 20 percent chance of rain after midnight. Lows in the upper 30s. .WEDNESDAY...Partly sunny. Chance of rain in the morning, then rain likely in the afternoon. Highs in the upper 50s. Chance of rain 70 percent. .WEDNESDAY NIGHT...Mostly cloudy with a 30 percent chance of rain in the evening, then partly cloudy after midnight. Lows in the upper 30s. .THURSDAY...Mostly sunny. Highs in the mid 60s. .THURSDAY NIGHT...Mostly cloudy. Chance of rain showers and slight chance of thunderstorms in the evening, then chance of rain after midnight. Lows in the lower 40s. Chance of precipitation 30 percent. .FRIDAY...Partly sunny with a 50 percent chance of rain. Highs in the lower 60s. .FRIDAY NIGHT...Partly cloudy. A 20 percent chance of rain in the evening. Lows in the lower 40s. .SATURDAY...Mostly sunny. Highs in the upper 60s. $$ MTZ308-172200- Southern High Plains- Including the cities of Bynum, Choteau, and Pendroy 312 AM MDT Sun May 17 2026 .TODAY...Breezy, colder. Snow likely in the morning, then snow showers likely with possible rain and thunderstorms in the afternoon. Snow accumulation up to 3 inches. Snow level 4100 feet. Highs in the lower 40s. North winds 10 to 25 mph with gusts to around 40 mph. Chance of precipitation 70 percent. .TONIGHT...Mostly cloudy. A 20 percent chance of rain and snow in the evening. Lows in the upper 20s. Northwest winds 5 to 15 mph. Gusts up to 35 mph in the evening. .MONDAY...Not as cool. Mostly sunny. Highs in the lower 50s. North winds up to 10 mph. .MONDAY NIGHT...Partly cloudy. Lows in the lower 30s. East winds up to 5 mph shifting to the southwest after midnight. .TUESDAY...Mostly sunny. Highs in the lower 60s. West winds up to 10 mph with gusts to around 25 mph. .TUESDAY NIGHT...Mostly cloudy. Lows in the upper 30s. .WEDNESDAY...Partly sunny. Chance of rain in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the lower 60s. Chance of precipitation 50 percent. .WEDNESDAY NIGHT...Mostly cloudy with a 30 percent chance of rain in the evening, then partly cloudy after midnight. Lows in the upper 30s. .THURSDAY...Mostly sunny. Highs in the upper 60s. .THURSDAY NIGHT...Partly cloudy in the evening, then mostly cloudy with a 20 percent chance of rain after midnight. Lows in the mid 40s. .FRIDAY...Partly sunny. Slight chance of rain in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the mid 60s. Chance of precipitation 40 percent. .FRIDAY NIGHT...Mostly cloudy with a 20 percent chance of rain in the evening, then partly cloudy after midnight. Lows in the mid 40s. .SATURDAY...Mostly sunny. Highs in the lower 70s. $$ MTZ303-172200- Eastern Glacier, Western Toole, and Central Pondera- Including the cities of Cut Bank, Ethridge, and Santa Rita 312 AM MDT Sun May 17 2026 .TODAY...Windy, colder. Mostly cloudy. Snow likely in the morning. Slight chance of rain through the day. Chance of snow in the afternoon. Snow accumulation up to 2 inches. Total snow accumulation up to 3 inches. Snow level 3800 feet. Highs in the lower 40s. North winds 20 to 30 mph with gusts to around 45 mph. Chance of precipitation 70 percent. .TONIGHT...Mostly cloudy in the evening then becoming partly cloudy. Lows in the mid 20s. Northwest winds 5 to 15 mph. Gusts up to 35 mph in the evening. .MONDAY...Not as cool. Mostly sunny. Highs in the mid 50s. North winds up to 10 mph shifting to the northeast in the afternoon. .MONDAY NIGHT...Partly cloudy. Lows around 30. South winds 5 to 10 mph. .TUESDAY...Mostly sunny. A 20 percent chance of rain in the afternoon. Highs in the lower 60s. Southwest winds up to 10 mph shifting to the west in the afternoon. .TUESDAY NIGHT...Mostly cloudy. Lows in the upper 30s. .WEDNESDAY...Partly sunny with a 50 percent chance of rain. Highs in the lower 60s. .WEDNESDAY NIGHT...Mostly cloudy with a 20 percent chance of rain in the evening, then partly cloudy after midnight. Lows in the upper 30s. .THURSDAY...Mostly sunny. Highs in the mid 60s. .THURSDAY NIGHT...Mostly cloudy. Chance of rain showers and slight chance of thunderstorms in the evening, then chance of rain after midnight. Lows in the lower 40s. Chance of precipitation 30 percent. .FRIDAY...Partly sunny with a 40 percent chance of rain. Highs in the mid 60s. .FRIDAY NIGHT...Mostly cloudy with a 20 percent chance of rain in the evening, then partly cloudy after midnight. Lows in the lower 40s. .SATURDAY...Mostly sunny. Highs in the lower 70s. && TEMPERATURE / PRECIPITATION Cut Bank 43 25 55 / 70 10 0 $$ MTZ304-172200- Eastern Toole and Liberty- Including the cities of Devon, Shelby, Chester, Galata, Joplin, Lothair, and Whitlash 312 AM MDT Sun May 17 2026 .TODAY...Breezy, colder. Chance of rain and snow in the morning, then snow likely and chance of rain in the afternoon. Snow accumulation up to 4 inches. Highs in the lower 40s. North winds 15 to 25 mph with gusts to around 45 mph. Chance of precipitation 70 percent. .TONIGHT...Mostly cloudy with a 20 percent chance of rain in the evening, then partly cloudy after midnight. Lows in the upper 20s. North winds 5 to 15 mph. Gusts up to 35 mph in the evening. .MONDAY...Not as cool. Mostly sunny. Highs in the mid 50s. North winds up to 10 mph. .MONDAY NIGHT...Mostly clear. Lows around 30. Southeast winds 5 to 10 mph. Gusts up to 25 mph after midnight. .TUESDAY...Mostly sunny. A 20 percent chance of rain in the afternoon. Highs in the mid 60s. South winds up to 10 mph shifting to the southwest in the afternoon. Gusts up to 25 mph. .TUESDAY NIGHT...Mostly cloudy. A 20 percent chance of rain in the evening. Lows in the upper 30s. .WEDNESDAY...Partly sunny. Slight chance of rain in the morning, then chance of rain in the afternoon. Highs 59 to 65. Chance of rain 40 percent. .WEDNESDAY NIGHT...Mostly cloudy with a 20 percent chance of rain in the evening, then partly cloudy after midnight. Lows in the upper 30s. .THURSDAY...Mostly sunny. Highs in the upper 60s. .THURSDAY NIGHT...Partly cloudy with slight chance of rain in the evening, then mostly cloudy with chance of rain after midnight. Lows in the lower 40s. Chance of rain 30 percent. .FRIDAY...Partly sunny. Slight chance of rain in the morning, then chance of rain in the afternoon. Highs 64 to 70. Chance of rain 40 percent. .FRIDAY NIGHT...Partly cloudy. A 20 percent chance of rain in the evening. Lows in the lower 40s. .SATURDAY...Mostly sunny. Highs in the lower 70s. $$ MTZ305-172200- Hill County- Including the city of Havre 312 AM MDT Sun May 17 2026 .TODAY...Breezy, cooler. Chance of rain early in the morning, then rain likely in the late morning and afternoon. Highs in the mid 40s. Northwest winds 10 to 25 mph. Chance of rain 70 percent. .TONIGHT...Mostly cloudy. A 50 percent chance of rain in the evening. Lows in the upper 20s. North winds 5 to 20 mph. .MONDAY...Mostly sunny. Highs in the mid 50s. North winds 5 to 10 mph. .MONDAY NIGHT...Mostly clear. Lows in the upper 20s. Southeast winds 5 to 10 mph. .TUESDAY...Warmer, sunny. Highs in the mid 60s. South winds up to 15 mph. .TUESDAY NIGHT...Mostly cloudy. Lows in the upper 30s. .WEDNESDAY...Partly sunny. Slight chance of rain in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the mid 60s. Chance of precipitation 40 percent. .WEDNESDAY NIGHT AND THURSDAY...Partly cloudy. Lows in the upper 30s. Highs in the upper 60s. .THURSDAY NIGHT...Partly cloudy in the evening then becoming mostly cloudy. A 20 percent chance of rain. Lows in the lower 40s. .FRIDAY...Partly sunny. Chance of rain in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the upper 60s. Chance of precipitation 40 percent. .FRIDAY NIGHT...Partly cloudy in the evening then becoming mostly cloudy. A 20 percent chance of rain. Lows in the lower 40s. .SATURDAY...Mostly sunny. Highs in the mid 70s. && TEMPERATURE / PRECIPITATION Havre 47 29 54 / 80 40 10 $$ MTZ306-172200- Northern Blaine County- Including the cities of Chinook, Zurich, Harlem, Hogeland, and Fort Belknap 312 AM MDT Sun May 17 2026 .TODAY...Breezy. Rain in the morning, then rain likely and slight chance of snow in the afternoon. No snow accumulation. Highs in the mid 40s. Northwest winds 15 to 25 mph. Chance of precipitation 90 percent. .TONIGHT...Breezy, cloudy. Chance of rain and snow in the evening, then slight chance of rain after midnight. Lows in the upper 20s. North winds 10 to 25 mph decreasing to 10 to 15 mph after midnight. Chance of precipitation 50 percent. .MONDAY...Partly sunny. Highs around 50. North winds 5 to 15 mph. .MONDAY NIGHT...Mostly clear. Lows in the upper 20s. Northeast winds 5 to 10 mph shifting to the southeast after midnight. .TUESDAY...Not as cool. Sunny. Highs in the lower 60s. Southeast winds 5 to 15 mph. .TUESDAY NIGHT...Mostly cloudy. Lows in the upper 30s. .WEDNESDAY...Partly sunny. Chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the mid 60s. Chance of precipitation 40 percent. .WEDNESDAY NIGHT AND THURSDAY...Partly cloudy. Lows in the upper 30s. Highs in the upper 60s. .THURSDAY NIGHT...Partly cloudy in the evening, then mostly cloudy with a 20 percent chance of rain after midnight. Lows in the lower 40s. .FRIDAY...Partly sunny. Chance of rain in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the upper 60s. Chance of precipitation 40 percent. .FRIDAY NIGHT...Mostly cloudy with chance of rain in the evening, then partly cloudy with slight chance of rain after midnight. Lows in the lower 40s. Chance of rain 30 percent. .SATURDAY...Mostly sunny. Highs in the mid 70s. $$ MTZ309-172200- Eastern Pondera and Eastern Teton- Including the cities of Brady, Conrad, and Ledger 312 AM MDT Sun May 17 2026 .TODAY...Breezy, colder. Mostly cloudy. Chance of rain in the morning. Snow likely through the day. Rain likely in the afternoon. Snow accumulation up to 1 inch. Highs in the lower 40s. Northwest winds 15 to 25 mph. Chance of precipitation 70 percent. .TONIGHT...Mostly cloudy. A 20 percent chance of rain in the evening. Lows in the mid 20s. Northwest winds 5 to 15 mph. Gusts up to 30 mph in the evening. .MONDAY...Not as cool. Mostly sunny. Highs in the mid 50s. North winds up to 10 mph. .MONDAY NIGHT...Partly cloudy. Lows in the upper 20s. Southeast winds 5 to 10 mph shifting to the south after midnight. .TUESDAY...Mostly sunny. A 20 percent chance of rain in the afternoon. Highs in the mid 60s. Southwest winds up to 10 mph. .TUESDAY NIGHT...Mostly cloudy. Lows in the upper 30s. .WEDNESDAY...Partly sunny with a 50 percent chance of rain. Highs in the lower 60s. .WEDNESDAY NIGHT...Mostly cloudy with a 30 percent chance of rain in the evening, then partly cloudy after midnight. Lows in the upper 30s. .THURSDAY...Mostly sunny. Highs in the upper 60s. .THURSDAY NIGHT...Mostly cloudy with a 20 percent chance of rain. Lows in the lower 40s. .FRIDAY...Partly sunny. Slight chance of rain in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the upper 60s. Chance of precipitation 40 percent. .FRIDAY NIGHT...Mostly cloudy. A 20 percent chance of rain in the evening. Lows in the lower 40s. .SATURDAY...Mostly sunny. Highs in the mid 70s. $$ MTZ310-172200- Western and Central Chouteau County- Including the cities of Floweree, Carter, and Fort Benton 312 AM MDT Sun May 17 2026 .TODAY...Breezy. Rain and snow likely. Snow accumulation up to 1 inch. Highs in the mid 40s. Northwest winds 15 to 25 mph. Chance of precipitation 70 percent. .TONIGHT...Mostly cloudy. A 50 percent chance of rain in the evening. Lows around 30. Northwest winds 5 to 15 mph with gusts to around 30 mph. .MONDAY...Mostly cloudy in the morning then becoming mostly sunny. Highs in the lower 50s. North winds up to 10 mph with gusts to around 25 mph. .MONDAY NIGHT...Mostly clear. Lows around 30. East winds up to 10 mph shifting to the southeast after midnight. .TUESDAY...Warmer. Mostly sunny. Highs in the mid 60s. South winds up to 10 mph. .TUESDAY NIGHT...Mostly cloudy. Lows in the upper 30s. .WEDNESDAY...Partly sunny. Slight chance of rain in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the mid 60s. Chance of precipitation 50 percent. .WEDNESDAY NIGHT...Mostly cloudy. Chance of rain showers and slight chance of thunderstorms in the evening. Lows in the upper 30s. Chance of precipitation 40 percent. .THURSDAY...Mostly sunny. Highs in the upper 60s. .THURSDAY NIGHT...Partly cloudy in the evening then becoming mostly cloudy. A 20 percent chance of rain. Lows in the mid 40s. .FRIDAY...Partly sunny. Slight chance of rain in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the upper 60s. Chance of precipitation 50 percent. .FRIDAY NIGHT AND SATURDAY...Partly cloudy. A 20 percent chance of rain. Lows in the mid 40s. Highs in the mid 70s. $$ MTZ311-172200- Bears Paw Mountains and Southern Blaine- Including the city of Rocky Boy 312 AM MDT Sun May 17 2026 .TODAY...Breezy. Chance of rain in the morning. Snow likely through the day. Rain likely in the afternoon. Snow accumulation up to 4 inches. Highs 42 to 48. Northwest winds 10 to 25 mph. Chance of precipitation 70 percent. .TONIGHT...Mostly cloudy. Chance of rain and snow in the evening, then slight chance of rain and snow after midnight. Lows around 30. Northwest winds 5 to 20 mph with gusts to around 35 mph. Chance of precipitation 50 percent. .MONDAY...Partly sunny. Highs 46 to 52. North winds 5 to 10 mph with gusts to around 25 mph. .MONDAY NIGHT...Mostly clear. Lows around 30. Northeast winds up to 10 mph shifting to the southeast after midnight. .TUESDAY...Not as cool. Sunny. Highs 58 to 64. South winds up to 10 mph. .TUESDAY NIGHT...Mostly cloudy. Lows around 40. .WEDNESDAY...Partly sunny. Slight chance of rain in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 60 to 66. Chance of precipitation 50 percent. .WEDNESDAY NIGHT...Mostly cloudy with a 20 percent chance of rain in the evening, then partly cloudy after midnight. Lows around 40. .THURSDAY...Mostly sunny. Highs 63 to 69. .THURSDAY NIGHT...Partly cloudy in the evening then becoming mostly cloudy. A 20 percent chance of rain. Lows in the mid 40s. .FRIDAY...Partly sunny. Chance of rain in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 64 to 70. Chance of precipitation 40 percent. .FRIDAY NIGHT AND SATURDAY...Partly cloudy. A 20 percent chance of rain. Lows in the mid 40s. Highs 69 to 75. $$ MTZ312-172200- Cascade County below 5000ft- Including the city of Great Falls 312 AM MDT Sun May 17 2026 .TODAY...Breezy, colder. Snow and rain early in the morning, then rain and snow likely in the late morning and early afternoon. Chance of rain and snow late in the afternoon. Snow accumulation up to 3 inches. Highs in the lower 40s. Northwest winds 10 to 15 mph increasing to 15 to 25 mph in the afternoon. Chance of precipitation near 100 percent. .TONIGHT...Mostly cloudy. Chance of snow and slight chance of rain in the evening, then slight chance of snow after midnight. Lows in the upper 20s. North winds 10 to 15 mph with gusts to around 30 mph shifting to the northwest after midnight. Chance of precipitation 50 percent. .MONDAY...Not as cool. Mostly cloudy in the morning then becoming mostly sunny. Highs 49 to 55. North winds up to 10 mph. .MONDAY NIGHT...Mostly clear. Lows in the upper 20s. East winds up to 10 mph shifting to the south after midnight. .TUESDAY...Not as cool. Mostly sunny. Highs in the lower 60s. Southwest winds 5 to 10 mph. .TUESDAY NIGHT...Mostly cloudy. Lows in the upper 30s. .WEDNESDAY...Partly sunny. Chance of rain in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the lower 60s. Chance of precipitation 50 percent. .WEDNESDAY NIGHT...Mostly cloudy. A 40 percent chance of rain in the evening. Lows around 40. .THURSDAY...Mostly sunny. Highs in the upper 60s. .THURSDAY NIGHT...Partly cloudy in the evening, then mostly cloudy with a 20 percent chance of rain after midnight. Lows in the mid 40s. .FRIDAY...Partly sunny. Chance of rain in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the upper 60s. Chance of precipitation 50 percent. .FRIDAY NIGHT...Mostly cloudy. A 20 percent chance of rain in the evening. Lows in the mid 40s. .SATURDAY...Mostly sunny with a 20 percent chance of rain. Highs in the lower 70s. && TEMPERATURE / PRECIPITATION Great Falls Arpt 43 30 53 / 90 20 10 $$ MTZ313-172200- Judith Basin County and Judith Gap- Including the cities of Raynesford, Geyser, Stanford, Windham, Benchland, Hobson, and Moccasin 312 AM MDT Sun May 17 2026 .TODAY...Windy. Chance of snow and rain in the morning, then rain and snow likely in the afternoon. Snow accumulation up to 3 inches. Total snow accumulation up to 4 inches. Snow level 4500 feet. Highs in the lower 40s. Northwest winds 15 to 30 mph. Chance of precipitation 70 percent. .TONIGHT...Breezy. Mostly cloudy. Chance of rain and snow in the evening, then slight chance of snow after midnight. Lows in the upper 20s. Northwest winds 10 to 25 mph with gusts to around 40 mph decreasing to 10 to 15 mph with gusts to around 30 mph after midnight. Chance of precipitation 50 percent. .MONDAY...Mostly cloudy. Slight chance of snow in the morning, then slight chance of rain and snow in the afternoon. Highs in the upper 40s. Northwest winds 10 to 15 mph with gusts to around 35 mph. Chance of precipitation 20 percent. .MONDAY NIGHT...Mostly clear. Lows in the mid 20s. Northeast winds up to 10 mph shifting to the south after midnight. .TUESDAY...Not as cool. Mostly sunny. Highs in the upper 50s. Southwest winds up to 10 mph shifting to the west in the afternoon. .TUESDAY NIGHT...Mostly cloudy. A 20 percent chance of rain in the evening. Lows in the mid 30s. .WEDNESDAY...Partly sunny. Slight chance of rain in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the upper 50s. Chance of precipitation 50 percent. .WEDNESDAY NIGHT...Mostly cloudy. Chance of rain showers and slight chance of thunderstorms in the evening. Lows in the upper 30s. Chance of precipitation 40 percent. .THURSDAY...Mostly sunny. A 20 percent chance of thunderstorms in the afternoon. Highs in the lower 60s. .THURSDAY NIGHT...Partly cloudy in the evening then becoming mostly cloudy. Lows in the lower 40s. .FRIDAY...Partly sunny. Slight chance of rain in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the mid 60s. Chance of precipitation 50 percent. .FRIDAY NIGHT...Mostly cloudy with chance of rain showers and slight chance of thunderstorms in the evening, then partly cloudy after midnight. Lows in the lower 40s. Chance of precipitation 30 percent. .SATURDAY...Mostly sunny. Slight chance of rain in the morning, then slight chance of thunderstorms in the afternoon. Highs around 70. Chance of precipitation 20 percent. $$ MTZ314-172200- Fergus County below 4500ft- Including the cities of Hilger and Lewistown 312 AM MDT Sun May 17 2026 .TODAY...Breezy. Mostly cloudy. Chance of snow in the morning. Chance of rain through the day. Snow likely in the afternoon. Snow accumulation up to 1 inch. Highs 43 to 49. Northwest winds 15 to 25 mph with gusts to around 40 mph. Chance of precipitation 70 percent. .TONIGHT...Breezy. Mostly cloudy. Chance of rain and snow in the evening, then slight chance of snow after midnight. Lows in the lower 30s. Northwest winds 10 to 25 mph with gusts to around 40 mph decreasing to 10 to 15 mph with gusts to around 30 mph after midnight. Chance of precipitation 50 percent. .MONDAY...Mostly cloudy with a 20 percent chance of rain and snow. Highs 46 to 52. Northwest winds 5 to 15 mph with gusts to around 30 mph. .MONDAY NIGHT...Mostly cloudy in the evening then clearing. Lows in the upper 20s. Northeast winds up to 10 mph shifting to the south after midnight. .TUESDAY...Not as cool. Mostly sunny. Highs in the lower 60s. South winds up to 10 mph. .TUESDAY NIGHT...Mostly cloudy. Lows in the upper 30s. .WEDNESDAY...Partly sunny. Chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 60 to 66. Chance of precipitation 50 percent. .WEDNESDAY NIGHT...Mostly cloudy. Chance of rain showers and slight chance of thunderstorms in the evening, then slight chance of rain after midnight. Lows around 40. Chance of precipitation 40 percent. .THURSDAY...Mostly sunny. A 20 percent chance of thunderstorms in the afternoon. Highs 63 to 69. .THURSDAY NIGHT...Partly cloudy in the evening, then mostly cloudy with a 20 percent chance of rain after midnight. Lows in the mid 40s. .FRIDAY...Partly sunny. Slight chance of rain in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the upper 60s. Chance of precipitation 50 percent. .FRIDAY NIGHT...Mostly cloudy with a 30 percent chance of rain in the evening, then partly cloudy after midnight. Lows in the mid 40s. .SATURDAY...Mostly sunny with a 20 percent chance of rain. Highs in the lower 70s. && TEMPERATURE / PRECIPITATION Lewistown 42 27 45 / 80 60 40 $$ MTZ315-172200- Upper Blackfoot and MacDonald Pass- Including the cities of Marysville, Lincoln, Flesher Pass, and MacDonald Pass 312 AM MDT Sun May 17 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MDT SUNDAY NIGHT... .TODAY...Snow likely in the morning, then snow showers with possible showers and thunderstorms in the afternoon. Snow accumulation up to 5 inches. Highs 33 to 43. Northwest winds 5 to 10 mph shifting to the north 10 to 15 mph in the afternoon. Gusts up to 30 mph. Chance of precipitation 90 percent. .TONIGHT...Mostly cloudy with chance of snow in the evening, then partly cloudy with slight chance of snow after midnight. Lows in the mid 20s. North winds up to 15 mph. Gusts up to 35 mph in the evening. Chance of snow 50 percent. .MONDAY...Not as cool. Mostly sunny. Highs 41 to 51. North winds up to 10 mph with gusts to around 25 mph. .MONDAY NIGHT...Partly cloudy. Lows in the upper 20s. Northeast winds up to 5 mph with gusts to around 20 mph shifting to the southwest after midnight. .TUESDAY...Not as cool. Mostly sunny. Highs 48 to 58. West winds up to 15 mph. .TUESDAY NIGHT...Mostly cloudy. Lows in the mid 30s. .WEDNESDAY...Partly sunny. Chance of snow and slight chance of rain in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 49 to 59. Chance of precipitation 50 percent. .WEDNESDAY NIGHT...Mostly cloudy with a 30 percent chance of rain in the evening, then partly cloudy after midnight. Lows in the mid 30s. .THURSDAY AND THURSDAY NIGHT...Partly cloudy. Highs 54 to 64. Lows around 40. .FRIDAY...Mostly sunny. Slight chance of rain in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 55 to 65. Chance of precipitation 40 percent. .FRIDAY NIGHT...Partly cloudy. A 20 percent chance of rain in the evening. Lows around 40. .SATURDAY...Mostly sunny. Highs 60 to 70. $$ MTZ316-172200- Gates of the Mountains- Including the cities of Canyon Creek, Wolf Creek, and Craig 312 AM MDT Sun May 17 2026 .TODAY...Snow and slight chance of rain in the morning, then snow showers, rain showers likely and slight chance of thunderstorms in the afternoon. Snow accumulation up to 5 inches. Snow level 4300 feet. Highs 38 to 46. Northwest winds 5 to 15 mph shifting to the north 15 to 20 mph in the afternoon. Gusts up to 35 mph. Chance of precipitation near 100 percent. .TONIGHT...Mostly cloudy. A 20 percent chance of rain and snow in the evening. Lows in the upper 20s. North winds 10 to 15 mph with gusts to around 40 mph shifting to the northwest after midnight. .MONDAY...Not as cool. Mostly sunny. Highs 47 to 55. North winds up to 10 mph with gusts to around 25 mph. .MONDAY NIGHT...Mostly clear. Lows around 30. Northeast winds up to 10 mph shifting to the south after midnight. .TUESDAY...Not as cool. Mostly sunny. Highs 55 to 63. Southwest winds up to 10 mph. .TUESDAY NIGHT...Mostly cloudy. Lows in the upper 30s. .WEDNESDAY...Partly sunny. Chance of rain in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 55 to 63. Chance of precipitation 50 percent. .WEDNESDAY NIGHT...Mostly cloudy with a 30 percent chance of rain in the evening, then partly cloudy after midnight. Lows in the upper 30s. .THURSDAY AND THURSDAY NIGHT...Partly cloudy. Highs 60 to 68. Lows in the lower 40s. .FRIDAY...Mostly sunny. Slight chance of rain in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 61 to 69. Chance of precipitation 50 percent. .FRIDAY NIGHT...Mostly cloudy with a 20 percent chance of rain in the evening, then partly cloudy after midnight. Lows in the lower 40s. .SATURDAY...Mostly sunny. Highs 66 to 74. $$ MTZ317-172200- Little Belt and Highwood Mountains- Including the cities of Monarch, Neihart, and Kings Hill Pass 312 AM MDT Sun May 17 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MDT SUNDAY NIGHT... .TODAY...Snow early in the morning, then chance of snow late in the morning. Snow in the afternoon. Snow accumulation up to 5 inches. Total snow accumulation up to 6 inches. Highs 31 to 39. Northwest winds 10 to 20 mph with gusts to around 40 mph. Chance of snow near 100 percent. .TONIGHT...Mostly cloudy with a 50 percent chance of snow. Lows 22 to 28. Northwest winds 5 to 15 mph. Gusts up to 40 mph decreasing to 30 mph after midnight. .MONDAY...Mostly cloudy with a 20 percent chance of snow. Highs 37 to 45. North winds 5 to 15 mph with gusts to around 35 mph. .MONDAY NIGHT...Mostly clear. Lows 21 to 27. North winds up to 10 mph with gusts to around 25 mph shifting to the south after midnight. .TUESDAY...Not as cool. Mostly sunny. A 20 percent chance of thunderstorms in the afternoon. Highs 48 to 56. Southwest winds up to 10 mph with gusts to around 25 mph. .TUESDAY NIGHT...Mostly cloudy. Chance of snow and slight chance of rain in the evening. Lows 31 to 37. Chance of precipitation 30 percent. .WEDNESDAY...Partly sunny. Chance of rain and slight chance of snow in the morning, then chance of rain showers, slight chance of thunderstorms and snow showers in the afternoon. Highs 48 to 56. Chance of precipitation 50 percent. .WEDNESDAY NIGHT...Mostly cloudy. Chance of rain showers and slight chance of thunderstorms in the evening. Lows 32 to 38. Chance of precipitation 40 percent. .THURSDAY...Mostly sunny. A 20 percent chance of thunderstorms in the afternoon. Highs 53 to 61. .THURSDAY NIGHT...Partly cloudy with slight chance of thunderstorms in the evening, then mostly cloudy with slight chance of rain after midnight. Lows 35 to 43. Chance of precipitation 20 percent. .FRIDAY...Partly sunny. Chance of rain in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 54 to 62. Chance of precipitation 50 percent. .FRIDAY NIGHT...Mostly cloudy. Chance of rain showers and slight chance of thunderstorms in the evening, then slight chance of rain after midnight. Lows 36 to 44. Chance of precipitation 40 percent. .SATURDAY...Mostly sunny. Slight chance of rain in the morning, then slight chance of thunderstorms in the afternoon. Highs 59 to 67. Chance of precipitation 20 percent. $$ MTZ318-172200- Snowy and Judith Mountains- 312 AM MDT Sun May 17 2026 .TODAY...Breezy. Slight chance of rain in the morning. Chance of snow through the day. Rain likely in the afternoon. Snow accumulation up to 2 inches. Total snow accumulation up to 3 inches. Snow level 4800 feet. Highs 34 to 42. Northwest winds 15 to 25 mph with gusts to around 40 mph. Chance of precipitation 70 percent. .TONIGHT...Breezy, cloudy. Chance of snow and slight chance of rain in the evening, then chance of snow after midnight. Lows in the mid 20s. Northwest winds 10 to 25 mph. Gusts up to 45 mph decreasing to 35 mph after midnight. Chance of precipitation 50 percent. .MONDAY...Cloudy. Slight chance of snow in the morning, then chance of snow and rain in the afternoon. Highs 37 to 43. Northwest winds 10 to 15 mph. Gusts up to 35 mph in the morning. Chance of precipitation 40 percent. .MONDAY NIGHT...Partly cloudy. Lows in the mid 20s. North winds up to 10 mph with gusts to around 25 mph shifting to the south after midnight. .TUESDAY...Not as cool. Mostly sunny. Highs 49 to 57. Southwest winds up to 10 mph. .TUESDAY NIGHT...Mostly cloudy. A 20 percent chance of rain in the evening. Lows in the mid 30s. .WEDNESDAY...Partly sunny. Slight chance of rain in the morning, then rain showers likely and slight chance of thunderstorms in the afternoon. Highs 50 to 58. Chance of precipitation 60 percent. .WEDNESDAY NIGHT...Mostly cloudy. Chance of rain showers and slight chance of thunderstorms in the evening, then slight chance of rain after midnight. Lows in the mid 30s. Chance of precipitation 40 percent. .THURSDAY...Mostly sunny. A 20 percent chance of thunderstorms in the afternoon. Highs 54 to 62. .THURSDAY NIGHT...Partly cloudy in the evening then becoming mostly cloudy. Lows around 40. .FRIDAY...Partly sunny. Slight chance of rain in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 56 to 64. Chance of precipitation 50 percent. .FRIDAY NIGHT...Mostly cloudy. A 30 percent chance of rain in the evening. Lows in the lower 40s. .SATURDAY...Mostly sunny. Slight chance of rain in the morning, then slight chance of thunderstorms in the afternoon. Highs 60 to 68. Chance of precipitation 20 percent. $$ MTZ319-172200- Helena Valley- Including the city of Helena 312 AM MDT Sun May 17 2026 .TODAY...Breezy. Mostly cloudy. Chance of rain and snow in the morning, then rain showers, snow showers likely and slight chance of thunderstorms in the afternoon. Little or no snow accumulation. Highs in the upper 40s. Northwest winds 5 to 10 mph with gusts to around 25 mph increasing to north 15 to 25 mph in the afternoon. Chance of precipitation 70 percent. .TONIGHT...Mostly cloudy in the evening then becoming partly cloudy. Lows in the upper 20s. North winds 10 to 20 mph with gusts to around 35 mph shifting to the northwest 5 to 10 mph after midnight. .MONDAY...Mostly sunny. Highs in the mid 50s. North winds 5 to 10 mph with gusts to around 25 mph. .MONDAY NIGHT...Mostly clear. Lows in the upper 20s. North winds up to 10 mph shifting to the south after midnight. .TUESDAY...Mostly sunny. Highs in the mid 60s. South winds up to 5 mph shifting to the west in the afternoon. .TUESDAY NIGHT...Mostly cloudy. Lows in the upper 30s. .WEDNESDAY...Partly sunny. Chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the mid 60s. Chance of precipitation 50 percent. .WEDNESDAY NIGHT...Mostly cloudy with a 30 percent chance of rain in the evening, then partly cloudy after midnight. Lows in the upper 30s. .THURSDAY AND THURSDAY NIGHT...Partly cloudy. Highs in the upper 60s. Lows in the lower 40s. .FRIDAY...Partly sunny. Chance of rain showers and slight chance of thunderstorms in the afternoon. Highs around 70. Chance of precipitation 40 percent. .FRIDAY NIGHT...Mostly cloudy with a 20 percent chance of rain in the evening, then partly cloudy after midnight. Lows in the lower 40s. .SATURDAY...Mostly sunny. Highs in the mid 70s. && TEMPERATURE / PRECIPITATION Helena 48 32 55 / 60 10 10 $$ MTZ320-172200- Big Belt, Bridger and Castle Mountains- Including the cities of Trident, Maudlow, Battle Ridge Pass, Bozeman Pass, and Deep Creek Pass 312 AM MDT Sun May 17 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MDT SUNDAY NIGHT... .TODAY...Partly sunny. Chance of snow until late afternoon, then chance of snow showers and slight chance of thunderstorms late in the afternoon. Highs 33 to 43. Northwest winds 5 to 15 mph increasing to 15 to 20 mph in the afternoon. Gusts up to 40 mph. Chance of precipitation 50 percent. .TONIGHT...Mostly cloudy. A 20 percent chance of snow in the evening. Lows in the mid 20s. North winds 10 to 20 mph with gusts to around 45 mph decreasing to 5 to 10 mph with gusts to around 30 mph after midnight. .MONDAY...Mostly cloudy. A 50 percent chance of snow in the afternoon. Highs 38 to 48. North winds 5 to 15 mph. Gusts up to 40 mph decreasing to 30 mph in the afternoon. .MONDAY NIGHT...Mostly clear. Lows 23 to 29. Northeast winds up to 10 mph with gusts to around 30 mph shifting to the southeast after midnight. .TUESDAY...Not as cool. Mostly sunny. Highs 47 to 57. Southwest winds up to 15 mph. Gusts up to 30 mph in the afternoon. .TUESDAY NIGHT...Mostly cloudy. Slight chance of rain in the evening, then slight chance of rain and snow after midnight. Lows in the mid 30s. Chance of precipitation 20 percent. .WEDNESDAY...Partly sunny. Chance of snow and slight chance of rain in the morning, then chance of rain showers, snow showers and slight chance of thunderstorms in the afternoon. Highs 48 to 58. Chance of precipitation 50 percent. .WEDNESDAY NIGHT...Mostly cloudy with a 40 percent chance of rain in the evening, then partly cloudy after midnight. Lows in the mid 30s. .THURSDAY AND THURSDAY NIGHT...Partly cloudy. Highs 52 to 62. Lows around 40. .FRIDAY...Partly sunny. Slight chance of rain in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 54 to 64. Chance of precipitation 50 percent. .FRIDAY NIGHT...Mostly cloudy with a 20 percent chance of rain in the evening, then partly cloudy after midnight. Lows around 40. .SATURDAY...Mostly sunny. A 20 percent chance of thunderstorms in the afternoon. Highs 59 to 69. $$ MTZ321-172200- Meagher County Valleys- Including the cities of Martinsdale, Checkerboard, Ringling, and White Sulphur Springs 312 AM MDT Sun May 17 2026 .TODAY...Breezy. Partly sunny. Chance of snow in the morning, then chance of snow showers and slight chance of thunderstorms early in the afternoon. Chance of snow and rain late in the afternoon. Highs in the lower 40s. Northwest winds 10 to 15 mph increasing to 15 to 25 mph in the afternoon. Gusts up to 40 mph. Chance of precipitation 50 percent. .TONIGHT...Breezy. Mostly cloudy. A 20 percent chance of snow in the evening. Lows in the mid 20s. Northwest winds 10 to 25 mph with gusts to around 45 mph decreasing to 5 to 15 mph after midnight. .MONDAY...Mostly cloudy. Chance of snow and slight chance of rain in the afternoon. Highs in the mid 40s. North winds 5 to 15 mph with gusts to around 35 mph. Chance of precipitation 40 percent. .MONDAY NIGHT...Partly cloudy. Lows in the mid 20s. North winds 5 to 10 mph with gusts to around 25 mph shifting to the south after midnight. .TUESDAY...Mostly sunny. Highs in the mid 50s. Southwest winds up to 5 mph shifting to the west 5 to 15 mph in the afternoon. .TUESDAY NIGHT...Mostly cloudy with a 20 percent chance of rain. Lows in the lower 30s. .WEDNESDAY...Partly sunny. Chance of snow and slight chance of rain in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the upper 50s. Chance of precipitation 50 percent. .WEDNESDAY NIGHT...Mostly cloudy. A 30 percent chance of rain in the evening. Lows in the mid 30s. .THURSDAY...Mostly sunny. Highs in the lower 60s. .THURSDAY NIGHT...Mostly cloudy. Lows in the upper 30s. .FRIDAY...Partly sunny. Slight chance of rain in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the lower 60s. Chance of precipitation 50 percent. .FRIDAY NIGHT...Mostly cloudy with a 20 percent chance of thunderstorms in the evening, then partly cloudy after midnight. Lows in the upper 30s. .SATURDAY...Mostly sunny. A 20 percent chance of thunderstorms in the afternoon. Highs in the upper 60s. $$ MTZ322-172200- Elkhorn and Boulder Mountains- Including the cities of Montana City, Clancy, Boulder, Corbin, Wickes, Elk Park Pass, and Homestake Pass 312 AM MDT Sun May 17 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MDT SUNDAY NIGHT... .TODAY...Partly sunny. Slight chance of snow early in the morning, then chance of snow late in the morning. Chance of snow showers and slight chance of thunderstorms in the afternoon. Highs 33 to 43. North winds 5 to 15 mph. Gusts up to 40 mph increasing to 50 mph in the afternoon. Chance of precipitation 50 percent. .TONIGHT...Mostly cloudy. Chance of snow in the evening, then slight chance of snow after midnight. Lows 21 to 29. North winds 10 to 20 mph with gusts to around 55 mph decreasing to 5 to 10 mph with gusts to around 40 mph after midnight. Chance of snow 50 percent. .MONDAY...Not as cool. Partly sunny. Highs 39 to 49. North winds 5 to 15 mph. Gusts up to 45 mph decreasing to 30 mph in the afternoon. .MONDAY NIGHT...Mostly clear. Lows 23 to 29. North winds up to 10 mph with gusts to around 30 mph shifting to the west after midnight. .TUESDAY...Not as cool. Mostly sunny. Highs 47 to 57. West winds up to 10 mph. .TUESDAY NIGHT...Mostly cloudy. A 20 percent chance of rain and snow after midnight. Lows 29 to 37. .WEDNESDAY...Partly sunny. Slight chance of rain and snow in the morning, then chance of rain showers, snow showers and slight chance of thunderstorms in the afternoon. Highs 48 to 58. Chance of precipitation 50 percent. .WEDNESDAY NIGHT...Mostly cloudy with a 20 percent chance of rain in the evening, then partly cloudy after midnight. Lows 31 to 37. .THURSDAY...Mostly sunny. Highs 53 to 63. .THURSDAY NIGHT...Mostly cloudy in the evening then becoming partly cloudy. Lows 36 to 42. .FRIDAY...Partly sunny. Slight chance of rain in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 55 to 65. Chance of precipitation 40 percent. .FRIDAY NIGHT...Mostly cloudy with a 20 percent chance of rain in the evening, then partly cloudy after midnight. Lows 36 to 42. .SATURDAY...Mostly sunny. Highs 60 to 70. $$ MTZ323-172200- Canyon Ferry Area- Including the cities of Toston, Townsend, and Winston 312 AM MDT Sun May 17 2026 .TODAY...Breezy. Partly sunny. Chance of snow in the morning. Chance of rain through the day. Chance of snow showers and slight chance of thunderstorms in the afternoon. Highs in the mid 40s. Northwest winds 5 to 15 mph with gusts to around 30 mph increasing to north 15 to 25 mph with gusts to around 45 mph in the afternoon. Chance of precipitation 50 percent. .TONIGHT...Breezy. Mostly cloudy in the evening then becoming partly cloudy. Lows in the lower 30s. North winds 15 to 25 mph with gusts to around 55 mph becoming northwest 5 to 15 mph with gusts to around 35 mph after midnight. .MONDAY...Mostly sunny. Highs in the lower 50s. North winds 10 to 15 mph with gusts to around 35 mph. .MONDAY NIGHT...Mostly clear. Lows in the lower 30s. North winds 5 to 10 mph with gusts to around 25 mph shifting to the southeast after midnight. .TUESDAY...Mostly sunny. Highs around 60. South winds up to 10 mph shifting to the southwest in the afternoon. .TUESDAY NIGHT...Mostly cloudy with a 20 percent chance of rain. Lows in the upper 30s. .WEDNESDAY...Partly sunny. Slight chance of rain in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the lower 60s. Chance of precipitation 50 percent. .WEDNESDAY NIGHT...Mostly cloudy with a 20 percent chance of rain in the evening, then partly cloudy after midnight. Lows in the upper 30s. .THURSDAY AND THURSDAY NIGHT...Partly cloudy. Highs in the mid 60s. Lows in the lower 40s. .FRIDAY...Partly sunny. Slight chance of rain in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the upper 60s. Chance of precipitation 40 percent. .FRIDAY NIGHT...Partly cloudy. A 20 percent chance of rain in the evening. Lows in the lower 40s. .SATURDAY...Mostly sunny. Highs in the lower 70s. $$ MTZ324-172200- Missouri Headwaters- Including the cities of Harrison, Three Forks, Willow Creek, Pony, and Whitehall 312 AM MDT Sun May 17 2026 .TODAY...Mostly sunny. Slight chance of snow late in the morning. Chance of rain showers, snow showers and slight chance of thunderstorms in the afternoon. Highs in the mid 40s. Northwest winds 5 to 10 mph with gusts to around 25 mph shifting to the north 10 to 20 mph with gusts to around 35 mph in the afternoon. Chance of precipitation 50 percent. .TONIGHT...Breezy. Mostly cloudy. Lows in the upper 20s. North winds 15 to 25 mph with gusts to around 40 mph becoming northwest 5 to 10 mph with gusts to around 25 mph after midnight. .MONDAY...Partly sunny. Highs in the lower 50s. North winds 5 to 15 mph with gusts to around 30 mph. .MONDAY NIGHT...Mostly clear. Lows in the upper 20s. Northeast winds up to 10 mph shifting to the southwest after midnight. .TUESDAY...Mostly sunny. Highs around 60. Southwest winds up to 10 mph. .TUESDAY NIGHT...Mostly cloudy. A 20 percent chance of rain after midnight. Lows in the mid 30s. .WEDNESDAY...Partly sunny. Slight chance of rain in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the lower 60s. Chance of precipitation 50 percent. .WEDNESDAY NIGHT...Mostly cloudy with a 20 percent chance of rain in the evening, then partly cloudy after midnight. Lows in the upper 30s. .THURSDAY...Mostly sunny. Highs in the mid 60s. .THURSDAY NIGHT...Mostly cloudy with a 20 percent chance of rain. Lows in the lower 40s. .FRIDAY...Mostly sunny. Slight chance of rain in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the upper 60s. Chance of precipitation 40 percent. .FRIDAY NIGHT...Mostly cloudy with a 20 percent chance of rain in the evening, then partly cloudy after midnight. Lows in the lower 40s. .SATURDAY...Mostly sunny. Highs in the lower 70s. $$ MTZ325-172200- Madison River Valley- Including the cities of Cameron, Ennis, Jeffers, McAllister, and Norris 312 AM MDT Sun May 17 2026 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 AM MDT SUNDAY... .TODAY...Breezy. Partly sunny. Slight chance of snow in the late morning and early afternoon. Chance of rain showers, snow showers and slight chance of thunderstorms late in the afternoon. Highs in the mid 40s. Northwest winds up to 10 mph increasing to north 15 to 25 mph in the afternoon. Chance of precipitation 50 percent. .TONIGHT...Windy. Mostly cloudy. Chance of rain and slight chance of snow in the evening, then slight chance of snow after midnight. Lows in the mid 20s. North winds 15 to 30 mph decreasing to 10 to 15 mph after midnight. Chance of precipitation 40 percent. .MONDAY...Breezy. Mostly cloudy with a 20 percent chance of snow in the morning, then mostly sunny in the afternoon. Highs in the upper 40s. North winds 10 to 25 mph. .MONDAY NIGHT...Mostly clear. Lows in the mid 20s. Northeast winds 5 to 10 mph with gusts to around 25 mph shifting to the south after midnight. .TUESDAY...Not as cool. Sunny. Highs in the upper 50s. Southwest winds up to 10 mph. .TUESDAY NIGHT...Mostly cloudy. A 20 percent chance of rain after midnight. Lows in the mid 30s. .WEDNESDAY...Partly sunny. Chance of rain and snow in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs around 60. Chance of precipitation 40 percent. .WEDNESDAY NIGHT...Mostly cloudy with a 30 percent chance of rain in the evening, then partly cloudy after midnight. Lows in the mid 30s. .THURSDAY...Mostly sunny. Highs in the mid 60s. .THURSDAY NIGHT...Partly cloudy in the evening then becoming mostly cloudy. A 20 percent chance of rain. Lows around 40. .FRIDAY...Partly sunny. Slight chance of rain in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the upper 60s. Chance of precipitation 50 percent. .FRIDAY NIGHT...Mostly cloudy with a 30 percent chance of rain in the evening, then partly cloudy after midnight. Lows around 40. .SATURDAY...Mostly sunny. Slight chance of rain in the morning, then slight chance of thunderstorms in the afternoon. Highs in the lower 70s. Chance of precipitation 20 percent. $$ MTZ326-172200- Gallatin Valley- Including the cities of Bozeman and Gallatin Gateway 312 AM MDT Sun May 17 2026 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 AM MDT SUNDAY... .TODAY...Partly sunny. Slight chance of snow in the late morning and early afternoon. Slight chance of rain early in the afternoon, then chance of snow showers and slight chance of thunderstorms late in the afternoon. Highs in the mid 40s. West winds up to 10 mph shifting to the northwest with gusts to around 35 mph in the afternoon. Chance of precipitation 40 percent. .TONIGHT...Mostly cloudy. Slight chance of rain and snow in the evening, then slight chance of snow after midnight. Lows in the upper 20s. North winds 15 to 20 mph with gusts to around 40 mph becoming northwest up to 10 mph after midnight. Chance of precipitation 20 percent. .MONDAY...Mostly cloudy. Slight chance of snow in the morning, then slight chance of rain and snow in the afternoon. Highs in the upper 40s. North winds 5 to 10 mph with gusts to around 25 mph. Chance of precipitation 20 percent. .MONDAY NIGHT...Partly cloudy. Lows in the upper 20s. Northeast winds up to 10 mph shifting to the southeast after midnight. .TUESDAY...Not as cool. Sunny. Highs around 60. South winds up to 5 mph shifting to the west in the afternoon. .TUESDAY NIGHT...Mostly cloudy with a 20 percent chance of rain. Lows in the mid 30s. .WEDNESDAY...Partly sunny. Chance of rain in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the lower 60s. Chance of precipitation 40 percent. .WEDNESDAY NIGHT...Mostly cloudy with a 20 percent chance of rain in the evening, then partly cloudy after midnight. Lows in the mid 30s. .THURSDAY...Mostly sunny. Highs in the mid 60s. .THURSDAY NIGHT...Partly cloudy with a 20 percent chance of rain in the evening, then mostly cloudy after midnight. Lows around 40. .FRIDAY...Partly sunny. Slight chance of rain in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the upper 60s. Chance of precipitation 40 percent. .FRIDAY NIGHT...Mostly cloudy with a 30 percent chance of rain in the evening, then partly cloudy after midnight. Lows around 40. .SATURDAY...Mostly sunny. A 20 percent chance of rain in the morning. Highs in the lower 70s. && TEMPERATURE / PRECIPITATION Bozeman Airport 48 27 51 / 30 20 20 Bozeman MSU 46 27 48 / 30 30 40 $$ MTZ330-172200- Gallatin and Madison County Mountains and Centennial Mountains- Including the cities of Big Sky, West Yellowstone, Targhee Pass, and Raynolds Pass 312 AM MDT Sun May 17 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM MDT SUNDAY... .TODAY...Partly sunny. Slight chance of snow until late afternoon, then chance of snow showers and slight chance of thunderstorms late in the afternoon. Highs 31 to 41. Northwest winds 5 to 10 mph shifting to the north 10 to 20 mph in the afternoon. Gusts up to 35 mph. Chance of precipitation 50 percent. .TONIGHT...Breezy. Mostly cloudy with a 50 percent chance of snow. Lows 19 to 25. North winds 10 to 25 mph with gusts to around 50 mph. .MONDAY...Breezy. Partly sunny with a 50 percent chance of snow. Highs 33 to 43. North winds 10 to 25 mph decreasing to 10 to 15 mph in the afternoon. Gusts up to 50 mph. .MONDAY NIGHT...Mostly clear. Lows 19 to 25. North winds 5 to 15 mph with gusts to around 35 mph shifting to the southwest up to 5 mph after midnight. .TUESDAY...Not as cool. Mostly sunny. Highs 43 to 53. Southwest winds up to 5 mph shifting to the west 5 to 15 mph in the afternoon. .TUESDAY NIGHT...Mostly cloudy. A 20 percent chance of snow after midnight. Lows 27 to 33. .WEDNESDAY...Partly sunny. Chance of snow and rain in the morning, then chance of rain showers, snow showers and slight chance of thunderstorms in the afternoon. Highs 44 to 56. Chance of precipitation 50 percent. .WEDNESDAY NIGHT...Mostly cloudy with a 40 percent chance of rain and snow in the evening, then partly cloudy after midnight. Lows 28 to 34. .THURSDAY...Not as cool. Mostly sunny. Highs 49 to 61. .THURSDAY NIGHT...Partly cloudy with a 20 percent chance of rain in the evening, then mostly cloudy after midnight. Lows 33 to 39. .FRIDAY...Partly sunny. Slight chance of rain and snow in the morning, then chance of rain showers, snow showers and slight chance of thunderstorms in the afternoon. Highs 51 to 63. Chance of precipitation 50 percent. .FRIDAY NIGHT...Mostly cloudy with a 20 percent chance of rain and snow in the evening, then partly cloudy after midnight. Lows 33 to 39. .SATURDAY...Mostly sunny. Slight chance of rain and snow in the morning, then slight chance of thunderstorms in the afternoon. Highs 55 to 67. Chance of precipitation 20 percent. && TEMPERATURE / PRECIPITATION West Yellowstone 44 22 44 / 10 20 0 $$ MTZ327-172200- Northwest Beaverhead County- Including the cities of Dewey, Wisdom, Wise River, Big Hole Pass, and Chief Joseph Pass 312 AM MDT Sun May 17 2026 .TODAY...Partly sunny. Chance of snow in the morning, then snow showers likely and slight chance of thunderstorms in the afternoon. Snow accumulation up to 3 inches. Highs 33 to 43. North winds 5 to 15 mph with gusts to around 35 mph. Chance of precipitation 70 percent. .TONIGHT...Mostly cloudy with a 50 percent chance of snow in the evening, then partly cloudy after midnight. Lows in the lower 20s. North winds 10 to 20 mph with gusts to around 45 mph decreasing to 5 to 10 mph with gusts to around 35 mph after midnight. .MONDAY...Mostly sunny. Highs 38 to 48. North winds 5 to 15 mph. Gusts up to 45 mph decreasing to 35 mph in the afternoon. .MONDAY NIGHT...Partly cloudy. Lows in the lower 20s. North winds 5 to 10 mph with gusts to around 30 mph shifting to the west after midnight. .TUESDAY...Not as cool. Mostly sunny. Highs 44 to 54. West winds up to 10 mph. Gusts up to 25 mph in the afternoon. .TUESDAY NIGHT...Mostly cloudy. A 20 percent chance of snow after midnight. Lows around 30. .WEDNESDAY...Partly sunny. Slight chance of snow in the morning, then chance of rain showers, snow showers and slight chance of thunderstorms in the afternoon. Highs 46 to 56. Chance of precipitation 40 percent. .WEDNESDAY NIGHT...Mostly cloudy with a 20 percent chance of rain and snow in the evening, then partly cloudy after midnight. Lows in the lower 30s. .THURSDAY AND THURSDAY NIGHT...Partly cloudy. Highs 52 to 62. Lows in the mid 30s. .FRIDAY...Mostly sunny. Slight chance of rain and snow in the morning, then slight chance of thunderstorms in the afternoon. Highs 53 to 63. Chance of precipitation 20 percent. .FRIDAY NIGHT AND SATURDAY...Partly cloudy. Lows in the mid 30s. Highs 58 to 68. $$ MTZ328-172200- Beaverhead and Western Madison below 6000ft- Including the cities of Bannack, Dillon, Glen, and Waterloo 312 AM MDT Sun May 17 2026 .TODAY...Mostly sunny. Slight chance of snow in the morning. Chance of snow showers and slight chance of thunderstorms in the afternoon. Chance of rain showers late in the afternoon. Highs 43 to 49. Northwest winds 5 to 10 mph with gusts to around 30 mph increasing to north 15 to 20 mph with gusts to around 40 mph in the afternoon. Chance of precipitation 50 percent. .TONIGHT...Windy. Mostly cloudy with chance of snow and slight chance of rain in the evening, then partly cloudy after midnight. Lows in the mid 20s. North winds 15 to 30 mph decreasing to 10 to 15 mph after midnight. Gusts up to 50 mph. Chance of precipitation 50 percent. .MONDAY...Mostly sunny. Highs 46 to 52. North winds 10 to 20 mph with gusts to around 45 mph. .MONDAY NIGHT...Partly cloudy. Lows in the upper 20s. Northeast winds 5 to 10 mph with gusts to around 30 mph shifting to the southwest after midnight. .TUESDAY...Not as cool. Mostly sunny. Highs 55 to 61. Southwest winds up to 10 mph. .TUESDAY NIGHT...Mostly cloudy. Lows in the mid 30s. .WEDNESDAY...Partly sunny. Slight chance of rain in the morning, then slight chance of thunderstorms in the afternoon. Highs 57 to 63. Chance of precipitation 20 percent. .WEDNESDAY NIGHT...Mostly cloudy with a 20 percent chance of rain in the evening, then partly cloudy after midnight. Lows in the mid 30s. .THURSDAY AND THURSDAY NIGHT...Partly cloudy. Highs 62 to 68. Lows in the upper 30s. .FRIDAY...Mostly sunny. Slight chance of rain in the morning, then slight chance of thunderstorms in the afternoon. Highs 63 to 69. Chance of precipitation 20 percent. .FRIDAY NIGHT...Partly cloudy. A 20 percent chance of rain in the evening. Lows in the upper 30s. .SATURDAY...Mostly sunny. Highs 68 to 74. && TEMPERATURE / PRECIPITATION Dillon 48 25 51 / 20 20 0 $$ MTZ329-172200- Ruby Mountains and Southern Beaverhead Mountains- Including the city of Monida Pass 312 AM MDT Sun May 17 2026 .TODAY...Breezy. Mostly sunny. Slight chance of snow late in the morning. Chance of snow early in the afternoon, then slight chance of thunderstorms and snow showers late in the afternoon. Highs 36 to 44. North winds 10 to 15 mph increasing to 15 to 25 mph in the afternoon. Gusts up to 45 mph. Chance of precipitation 50 percent. .TONIGHT...Windy. Mostly cloudy. Chance of snow in the evening, then slight chance of snow after midnight. Lows in the lower 20s. North winds 15 to 30 mph with gusts to around 60 mph. Chance of snow 50 percent. .MONDAY...Windy. Mostly cloudy in the morning then becoming mostly sunny. Highs 39 to 47. North winds 15 to 30 mph. Gusts up to 60 mph decreasing to 50 mph in the afternoon. .MONDAY NIGHT...Partly cloudy. Lows in the mid 20s. North winds 10 to 15 mph with gusts to around 35 mph becoming southwest up to 5 mph after midnight. .TUESDAY...Not as cool. Mostly sunny. Highs 47 to 55. Southwest winds up to 5 mph shifting to the west 5 to 15 mph in the afternoon. .TUESDAY NIGHT...Mostly cloudy in the evening then becoming partly cloudy. Lows in the lower 30s. .WEDNESDAY...Partly sunny. Slight chance of snow in the morning, then chance of rain showers, snow showers and slight chance of thunderstorms in the afternoon. Highs 49 to 57. Chance of precipitation 40 percent. .WEDNESDAY NIGHT...Mostly cloudy with a 20 percent chance of rain and snow in the evening, then partly cloudy after midnight. Lows in the lower 30s. .THURSDAY...Mostly sunny. Highs 54 to 62. .THURSDAY NIGHT...Partly cloudy with a 20 percent chance of rain in the evening, then mostly cloudy after midnight. Lows in the upper 30s. .FRIDAY...Mostly sunny. A 20 percent chance of thunderstorms in the afternoon. Highs 56 to 64. .FRIDAY NIGHT...Partly cloudy. A 20 percent chance of rain in the evening. Lows in the mid 30s. .SATURDAY...Mostly sunny. Highs 60 to 68. $$