FPUS55 KTFX 210937 ZFPTFX Zone Forecast Product for Central and Southwest Montana National Weather Service Great Falls MT 337 AM MDT Tue Apr 21 2026 Spot temperatures and probabilities of measurable precipitation are for today, tonight, and Wednesday. MTZ301-212200- East Glacier Park Region- Including the cities of East Glacier Park, Kiowa, Babb, Saint Mary, Marias Pass, and Logan Pass 337 AM MDT Tue Apr 21 2026 .TODAY...Warmer. Mostly sunny. Highs 60 to 70. Southwest winds 5 to 10 mph with gusts to around 25 mph. .TONIGHT...Mostly cloudy. A 20 percent chance of rain showers in the evening. Lows 39 to 45. Southwest winds up to 10 mph. .WEDNESDAY...Partly sunny with chance of rain showers in the morning, then rain showers, snow showers and slight chance of thunderstorms in the afternoon. Snow accumulation up to 2 inches. Highs 47 to 57. Northwest winds 5 to 15 mph shifting to the north 15 to 20 mph with gusts to around 40 mph in the afternoon. Chance of precipitation near 100 percent. .WEDNESDAY NIGHT...Breezy, colder. Snow showers and rain showers in the evening, then snow after midnight. Heavy snow accumulations. Lows in the lower 20s. Northwest winds 15 to 25 mph with gusts to around 45 mph. Chance of precipitation near 100 percent. .THURSDAY...Breezy, colder. Snow in the morning, then snow likely in the afternoon. Light snow accumulations. Highs 27 to 35. North winds 15 to 25 mph with gusts to around 50 mph. Chance of snow 90 percent. .THURSDAY NIGHT AND FRIDAY...Mostly cloudy with a 50 percent chance of snow. Lows 15 to 21. Highs 24 to 32. .FRIDAY NIGHT...Mostly cloudy with a 40 percent chance of snow. Lows 14 to 20. .SATURDAY...Partly sunny with a 50 percent chance of snow. Highs 27 to 35. .SATURDAY NIGHT AND SUNDAY...Mostly cloudy. A 40 percent chance of snow. Lows around 17. Highs 30 to 38. .SUNDAY NIGHT...Mostly cloudy with a 20 percent chance of snow. Lows in the lower 20s. .MONDAY...Not as cool. Mostly sunny. Slight chance of snow in the morning, then chance of snow in the afternoon. Highs 36 to 46. Chance of snow 50 percent. $$ MTZ307-212200- Southern Rocky Mountain Front- Including the city of Rogers Pass 337 AM MDT Tue Apr 21 2026 .TODAY...Warmer, sunny. Highs 61 to 71. South winds up to 10 mph with gusts to around 25 mph. .TONIGHT...Mostly cloudy in the evening then clearing. Lows 40 to 46. Southwest winds up to 10 mph with gusts to around 25 mph. .WEDNESDAY...Partly sunny with chance of rain showers in the morning, then rain showers, snow showers and slight chance of thunderstorms in the afternoon. Snow accumulation up to 1 inch. Highs 50 to 60. Southwest winds 5 to 15 mph. Gusts up to 25 mph increasing to 40 mph in the afternoon. Chance of precipitation near 100 percent. .WEDNESDAY NIGHT...Colder. Snow showers, rain showers and slight chance of thunderstorms in the evening, then snow after midnight. Heavy snow accumulations. Lows 23 to 29. West winds 10 to 20 mph with gusts to around 50 mph. Chance of precipitation near 100 percent. .THURSDAY...Colder, snow. Heavy snow accumulations. Near steady temperature in the upper 20s. North winds 10 to 20 mph with gusts to around 50 mph. Chance of snow near 100 percent. .THURSDAY NIGHT AND FRIDAY...Snow likely. Light snow accumulations. Lows 16 to 22. Highs 24 to 34. Chance of snow 70 percent. .FRIDAY NIGHT...Mostly cloudy. Chance of snow in the evening, then slight chance of snow after midnight. Lows 13 to 19. Chance of snow 40 percent. .SATURDAY...Partly sunny with a 50 percent chance of snow. Highs 26 to 36. .SATURDAY NIGHT AND SUNDAY...Mostly cloudy. A 40 percent chance of snow. Lows 14 to 20. Highs 30 to 40. .SUNDAY NIGHT...Mostly cloudy with a 20 percent chance of snow. Lows 18 to 24. .MONDAY...Not as cool. Partly sunny with a 50 percent chance of snow. Highs 36 to 46. $$ MTZ302-212200- Northern High Plains- Including the cities of Browning, Heart Butte, and Dupuyer 337 AM MDT Tue Apr 21 2026 .TODAY...Mostly sunny. Highs in the mid 70s. South winds 5 to 15 mph. .TONIGHT...Mostly cloudy in the evening then becoming partly cloudy. Lows in the mid 40s. South winds 5 to 10 mph shifting to the west after midnight. .WEDNESDAY...Windy, cooler. Mostly sunny with slight chance of rain showers in the morning, then mostly cloudy with rain showers and slight chance of thunderstorms in the afternoon. Highs 58 to 64. Northwest winds 5 to 15 mph with gusts to around 30 mph increasing to 15 to 30 mph with gusts to around 45 mph in the afternoon. Chance of precipitation 90 percent. .WEDNESDAY NIGHT...Windy, colder. Rain showers and slight chance of snow showers in the evening, then snow likely and rain after midnight. Light snow accumulations. Lows in the mid 20s. Northwest winds 20 to 30 mph with gusts to around 50 mph. Chance of precipitation near 100 percent. .THURSDAY...Windy. Much colder. Mostly cloudy. Snow likely in the morning, then chance of snow in the afternoon. Light snow accumulations. Highs in the upper 30s. Northwest winds 20 to 30 mph with gusts to around 50 mph. Chance of snow 70 percent. .THURSDAY NIGHT AND FRIDAY...Breezy. Mostly cloudy with a 50 percent chance of snow. Lows in the lower 20s. Highs in the mid 30s. .FRIDAY NIGHT THROUGH SUNDAY...Mostly cloudy with a 20 percent chance of snow. Lows around 20. Highs in the upper 30s. .SUNDAY NIGHT...Mostly cloudy. Lows in the lower 20s. .MONDAY...Mostly sunny. A 20 percent chance of snow in the afternoon. Highs in the upper 40s. $$ MTZ308-212200- Southern High Plains- Including the cities of Bynum, Choteau, and Pendroy 337 AM MDT Tue Apr 21 2026 .TODAY...Mostly sunny. Highs in the upper 70s. South winds up to 15 mph. .TONIGHT...Mostly cloudy in the evening then becoming partly cloudy. Lows in the mid 40s. Southwest winds up to 10 mph. .WEDNESDAY...Breezy, cooler. Sunny with slight chance of rain showers in the morning, then cloudy with rain showers and slight chance of thunderstorms in the afternoon. Highs in the upper 60s. Southwest winds 5 to 10 mph with gusts to around 25 mph increasing to west 15 to 25 mph with gusts to around 40 mph in the afternoon. Chance of precipitation 90 percent. .WEDNESDAY NIGHT...Windy, colder. Rain showers and slight chance of thunderstorms in the evening, then rain and snow after midnight. Light snow accumulations. Lows in the upper 20s. Northwest winds 15 to 30 mph with gusts to around 50 mph. Chance of precipitation near 100 percent. .THURSDAY...Windy. Much colder. Snow in the morning, then snow likely in the afternoon. Light snow accumulations. Highs in the upper 30s. North winds 15 to 30 mph with gusts to around 50 mph. Chance of snow 90 percent. .THURSDAY NIGHT AND FRIDAY...Mostly cloudy with a 50 percent chance of snow. Lows in the mid 20s. Highs in the upper 30s. .FRIDAY NIGHT THROUGH SUNDAY NIGHT...Mostly cloudy with a 20 percent chance of snow. Lows in the mid 20s. Highs in the lower 40s. .MONDAY...Mostly sunny. Slight chance of snow in the morning, then slight chance of rain and snow in the afternoon. Highs in the lower 50s. Chance of precipitation 20 percent. $$ MTZ303-212200- Eastern Glacier, Western Toole, and Central Pondera- Including the cities of Cut Bank, Ethridge, and Santa Rita 337 AM MDT Tue Apr 21 2026 .TODAY...Sunny. Highs in the upper 70s. Southwest winds up to 10 mph shifting to the southeast in the afternoon. .TONIGHT...Mostly cloudy in the evening then becoming partly cloudy. Lows in the mid 40s. Southeast winds 5 to 15 mph shifting to the northwest 5 to 10 mph after midnight. .WEDNESDAY...Windy. Mostly sunny in the morning, then mostly cloudy with rain showers likely and slight chance of thunderstorms in the afternoon. Highs 63 to 69. Northwest winds 5 to 15 mph increasing to 15 to 30 mph with gusts to around 45 mph in the afternoon. Chance of precipitation 70 percent. .WEDNESDAY NIGHT...Windy, colder. Rain showers and slight chance of snow in the evening, then rain and snow likely after midnight. Light snow accumulations. Lows in the upper 20s. Northwest winds 25 to 35 mph with gusts to around 55 mph. Chance of precipitation near 100 percent. .THURSDAY...Windy. Much colder. Mostly cloudy. Snow likely in the morning, then chance of snow in the afternoon. Highs around 40. Northwest winds 25 to 35 mph with gusts to around 50 mph. Chance of snow 70 percent. .THURSDAY NIGHT...Breezy. Mostly cloudy with a 20 percent chance of snow. Lows in the lower 20s. .FRIDAY...Windy. Mostly cloudy. Slight chance of snow in the morning, then chance of snow in the afternoon. Highs in the upper 30s. Chance of snow 40 percent. .FRIDAY NIGHT AND SATURDAY...Mostly cloudy. A 20 percent chance of snow. Lows around 20. Highs in the upper 30s. .SATURDAY NIGHT...Mostly cloudy. Lows around 19. .SUNDAY...Partly sunny with a 20 percent chance of snow. Highs in the mid 40s. .SUNDAY NIGHT...Mostly cloudy. Lows in the lower 20s. .MONDAY...Mostly sunny. Highs in the lower 50s. && TEMPERATURE / PRECIPITATION Cut Bank 77 43 65 / 0 10 60 $$ MTZ304-212200- Eastern Toole and Liberty- Including the cities of Devon, Shelby, Chester, Galata, Joplin, Lothair, and Whitlash 337 AM MDT Tue Apr 21 2026 .TODAY...Sunny. Highs in the upper 70s. West winds up to 5 mph shifting to the south in the afternoon. .TONIGHT...Mostly cloudy. Lows in the mid 40s. East winds 5 to 15 mph. .WEDNESDAY...Breezy. Partly sunny. Chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 68 to 74. West winds 5 to 10 mph with gusts to around 25 mph increasing to northwest 15 to 25 mph with gusts to around 40 mph in the afternoon. Chance of precipitation 50 percent. .WEDNESDAY NIGHT...Windy, colder. Rain showers and slight chance of thunderstorms in the evening, then rain and snow likely after midnight. Light snow accumulations. Lows in the upper 20s. Northwest winds 20 to 30 mph with gusts to around 60 mph. Chance of precipitation near 100 percent. .THURSDAY...Windy. Much colder. Mostly cloudy. Snow likely in the morning, then chance of snow in the afternoon. Light snow accumulations. Highs 37 to 43. Northwest winds 20 to 30 mph with gusts to around 60 mph. Chance of snow 70 percent. .THURSDAY NIGHT...Breezy. Mostly cloudy with a 20 percent chance of snow. Lows in the lower 20s. .FRIDAY...Breezy. Mostly cloudy with a 40 percent chance of snow. Highs 34 to 40. .FRIDAY NIGHT AND SATURDAY...Mostly cloudy. A 20 percent chance of snow. Lows in the lower 20s. Highs 37 to 43. .SATURDAY NIGHT...Mostly cloudy. Lows around 20. .SUNDAY...Partly sunny with a 20 percent chance of snow. Highs 41 to 47. .SUNDAY NIGHT...Mostly cloudy. Lows in the lower 20s. .MONDAY...Mostly sunny. Highs in the lower 50s. $$ MTZ305-212200- Hill County- Including the city of Havre 337 AM MDT Tue Apr 21 2026 .TODAY...Mostly sunny. Highs in the upper 70s. Southwest winds up to 10 mph shifting to the south in the afternoon. .TONIGHT...Mostly cloudy. Lows in the upper 40s. East winds 5 to 15 mph. .WEDNESDAY...Partly sunny. Chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the mid 70s. Southeast winds 5 to 10 mph shifting to the southwest 10 to 20 mph in the afternoon. Chance of precipitation 40 percent. .WEDNESDAY NIGHT...Windy, colder. Rain showers and slight chance of thunderstorms in the evening, then rain and slight chance of snow after midnight. Lows around 30. Northwest winds 15 to 30 mph with gusts to around 45 mph. Chance of precipitation 90 percent. .THURSDAY...Windy. Much colder. Mostly cloudy. Snow and rain likely in the morning, then chance of snow in the afternoon. Highs in the lower 40s. Northwest winds 20 to 35 mph. Chance of precipitation 70 percent. .THURSDAY NIGHT...Breezy. Mostly cloudy with a 20 percent chance of snow. Lows in the mid 20s. .FRIDAY...Windy. Mostly cloudy with a 50 percent chance of snow. Highs in the upper 30s. .FRIDAY NIGHT...Mostly cloudy with a 40 percent chance of snow. Lows in the lower 20s. .SATURDAY AND SATURDAY NIGHT...Mostly cloudy. A 20 percent chance of snow. Highs around 40. Lows around 20. .SUNDAY...Partly sunny with a 20 percent chance of snow. Highs in the mid 40s. .SUNDAY NIGHT...Mostly cloudy. Lows in the mid 20s. .MONDAY...Mostly sunny. Highs in the lower 50s. && TEMPERATURE / PRECIPITATION Havre 82 48 78 / 0 10 30 $$ MTZ306-212200- Northern Blaine County- Including the cities of Chinook, Zurich, Harlem, Hogeland, and Fort Belknap 337 AM MDT Tue Apr 21 2026 .TODAY...Mostly sunny. Highs in the upper 70s. West winds up to 10 mph. .TONIGHT...Mostly cloudy. Lows around 50. East winds 5 to 15 mph. .WEDNESDAY...Partly sunny. Chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the upper 70s. Southeast winds 5 to 15 mph shifting to the southwest 10 to 15 mph in the afternoon. Chance of precipitation 40 percent. .WEDNESDAY NIGHT...Windy, colder. Rain showers likely and slight chance of thunderstorms in the evening, then rain and slight chance of snow after midnight. Lows around 30. Northwest winds 15 to 30 mph. Gusts up to 45 mph after midnight. Chance of precipitation 90 percent. .THURSDAY...Very windy. Much colder. Mostly cloudy. Snow and rain likely in the morning, then chance of snow and rain in the afternoon. Light snow accumulations. Snow level 2700 feet. Highs around 40. Northwest winds 25 to 40 mph. Gusts up to 50 mph increasing to 60 mph in the afternoon. Chance of precipitation 70 percent. .THURSDAY NIGHT THROUGH SATURDAY...Windy. Mostly cloudy with a 50 percent chance of snow. Lows in the mid 20s. Highs 35 to 41. .SATURDAY NIGHT AND SUNDAY...Mostly cloudy. A 20 percent chance of snow. Lows around 20. Highs in the lower 40s. .SUNDAY NIGHT...Mostly cloudy. Lows in the lower 20s. .MONDAY...Mostly sunny. Highs in the upper 40s. $$ MTZ309-212200- Eastern Pondera and Eastern Teton- Including the cities of Brady, Conrad, and Ledger 337 AM MDT Tue Apr 21 2026 .TODAY...Sunny. Highs in the upper 70s. Southwest winds up to 5 mph shifting to the southeast in the afternoon. .TONIGHT...Mostly cloudy. Lows in the mid 40s. East winds 5 to 10 mph shifting to the southwest after midnight. .WEDNESDAY...Breezy. Mostly sunny in the morning, then mostly cloudy with rain showers likely and slight chance of thunderstorms in the afternoon. Highs in the lower 70s. West winds 5 to 10 mph increasing to 15 to 25 mph in the afternoon. Chance of precipitation 70 percent. .WEDNESDAY NIGHT...Windy, colder. Rain showers and slight chance of thunderstorms in the evening, then rain and slight chance of snow after midnight. Lows in the upper 20s. Northwest winds 20 to 30 mph. Chance of precipitation near 100 percent. .THURSDAY...Windy. Much colder. Mostly cloudy. Snow likely in the morning, then chance of snow in the afternoon. Highs in the lower 40s. Northwest winds 20 to 30 mph. Chance of snow 70 percent. .THURSDAY NIGHT...Mostly cloudy with a 50 percent chance of snow. Lows in the mid 20s. .FRIDAY...Breezy. Mostly cloudy with a 40 percent chance of snow. Highs in the upper 30s. .FRIDAY NIGHT AND SATURDAY...Mostly cloudy. A 20 percent chance of snow. Lows in the lower 20s. Highs in the lower 40s. .SATURDAY NIGHT...Mostly cloudy. Lows around 20. .SUNDAY...Partly sunny with a 20 percent chance of snow. Highs in the mid 40s. .SUNDAY NIGHT...Mostly cloudy. Lows in the mid 20s. .MONDAY...Mostly sunny. A 20 percent chance of rain and snow in the afternoon. Highs in the lower 50s. $$ MTZ310-212200- Western and Central Chouteau County- Including the cities of Floweree, Carter, and Fort Benton 337 AM MDT Tue Apr 21 2026 .TODAY...Mostly sunny. Highs around 80. Southwest winds up to 5 mph shifting to the southeast in the afternoon. .TONIGHT...Mostly cloudy. Lows 46 to 52. East winds 5 to 15 mph shifting to the south 5 to 10 mph after midnight. .WEDNESDAY...Partly sunny. Chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the mid 70s. Southwest winds 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Chance of precipitation 50 percent. .WEDNESDAY NIGHT...Windy, colder. Rain showers and slight chance of thunderstorms in the evening, then rain and slight chance of snow after midnight. Light snow accumulations. Lows in the lower 30s. Northwest winds 15 to 30 mph. Gusts up to 45 mph increasing to 55 mph after midnight. Chance of precipitation near 100 percent. .THURSDAY...Windy. Much colder. Mostly cloudy. Snow and rain likely in the morning, then chance of snow in the afternoon. Moderate snow accumulations. Snow level 2900 feet. Highs in the lower 40s. Northwest winds 20 to 30 mph. Gusts up to 55 mph decreasing to 45 mph in the afternoon. Chance of precipitation 70 percent. .THURSDAY NIGHT AND FRIDAY...Breezy. Mostly cloudy with a 50 percent chance of snow. Lows in the mid 20s. Highs around 40. .FRIDAY NIGHT THROUGH SUNDAY NIGHT...Mostly cloudy with a 20 percent chance of snow. Lows in the mid 20s. Highs in the mid 40s. .MONDAY...Mostly sunny. A 20 percent chance of rain and snow in the afternoon. Highs in the lower 50s. $$ MTZ311-212200- Bears Paw Mountains and Southern Blaine- Including the city of Rocky Boy 337 AM MDT Tue Apr 21 2026 .TODAY...Mostly sunny. Highs in the upper 70s. West winds up to 5 mph shifting to the south in the afternoon. .TONIGHT...Mostly cloudy. Lows in the lower 50s. Southeast winds 5 to 15 mph. .WEDNESDAY...Partly sunny. Chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 73 to 79. South winds 5 to 10 mph shifting to the southwest 10 to 15 mph with gusts to around 30 mph in the afternoon. Chance of precipitation 50 percent. .WEDNESDAY NIGHT...Windy. Much colder. Rain showers and slight chance of thunderstorms in the evening, then rain and slight chance of snow after midnight. Lows in the lower 30s. Northwest winds 15 to 30 mph. Gusts up to 45 mph increasing to 55 mph after midnight. Chance of precipitation near 100 percent. .THURSDAY...Windy. Much colder. Mostly cloudy. Snow and rain likely in the morning, then chance of snow in the afternoon. Moderate snow accumulations. Highs in the upper 30s. Northwest winds 20 to 35 mph with gusts to around 55 mph. Chance of precipitation 70 percent. .THURSDAY NIGHT...Breezy. Mostly cloudy. Chance of snow in the evening, then slight chance of snow after midnight. Lows in the mid 20s. Chance of snow 40 percent. .FRIDAY...Windy. Mostly cloudy with a 50 percent chance of snow. Highs 33 to 39. .FRIDAY NIGHT AND SATURDAY...Mostly cloudy. A 40 percent chance of snow. Lows in the lower 20s. Highs 36 to 42. .SATURDAY NIGHT AND SUNDAY...Mostly cloudy. A 20 percent chance of snow. Lows in the lower 20s. Highs 40 to 46. .SUNDAY NIGHT...Mostly cloudy. Lows in the mid 20s. .MONDAY...Partly sunny. A 20 percent chance of rain and snow in the afternoon. Highs 46 to 52. $$ MTZ312-212200- Cascade County below 5000ft- Including the city of Great Falls 337 AM MDT Tue Apr 21 2026 .TODAY...Mostly sunny. Highs around 80. South winds up to 10 mph. Gusts up to 25 mph in the afternoon. .TONIGHT...Mostly cloudy. Lows 46 to 52. South winds 5 to 15 mph. .WEDNESDAY...Breezy. Mostly sunny in the morning, then mostly cloudy with rain showers likely and slight chance of thunderstorms in the afternoon. Highs in the lower 70s. Southwest winds 5 to 15 mph increasing to 15 to 25 mph in the afternoon. Chance of precipitation 70 percent. .WEDNESDAY NIGHT...Windy, colder. Rain showers and slight chance of thunderstorms in the evening, then rain and slight chance of snow after midnight. Light snow accumulations. Lows around 30. Northwest winds 15 to 30 mph with gusts to around 45 mph. Chance of precipitation near 100 percent. .THURSDAY...Windy. Much colder. Snow in the morning, then snow likely in the afternoon. Moderate snow accumulations. Highs 36 to 42. Northwest winds 15 to 30 mph with gusts to around 45 mph. Chance of snow 90 percent. .THURSDAY NIGHT AND FRIDAY...Mostly cloudy with a 50 percent chance of snow. Lows in the mid 20s. Highs in the upper 30s. .FRIDAY NIGHT THROUGH SUNDAY...Mostly cloudy with a 20 percent chance of snow. Lows in the lower 20s. Highs in the mid 40s. .SUNDAY NIGHT...Mostly cloudy with a 20 percent chance of snow. Lows in the upper 20s. .MONDAY...Mostly sunny. Slight chance of snow in the morning, then slight chance of rain and snow in the afternoon. Highs in the lower 50s. Chance of precipitation 20 percent. && TEMPERATURE / PRECIPITATION Great Falls Arpt 80 48 72 / 0 10 60 $$ MTZ313-212200- Judith Basin County and Judith Gap- Including the cities of Raynesford, Geyser, Stanford, Windham, Benchland, Hobson, and Moccasin 337 AM MDT Tue Apr 21 2026 ...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH THURSDAY AFTERNOON... .TODAY...Mostly sunny. Highs in the upper 70s. South winds up to 15 mph. .TONIGHT...Mostly cloudy. Lows around 50. South winds 5 to 15 mph. .WEDNESDAY...Breezy. Mostly sunny in the morning, then mostly cloudy with rain showers likely and slight chance of thunderstorms in the afternoon. Highs in the lower 70s. South winds 10 to 15 mph shifting to the southwest 15 to 25 mph in the afternoon. Chance of precipitation 70 percent. .WEDNESDAY NIGHT...Windy, colder. Rain showers and slight chance of thunderstorms in the evening, then snow and rain after midnight. Light snow accumulations. Lows around 30. West winds 15 to 30 mph with gusts to around 45 mph shifting to the northwest 25 to 35 mph with gusts to around 60 mph after midnight. Chance of precipitation near 100 percent. .THURSDAY...Very windy. Much colder. Snow in the morning, then snow likely in the afternoon. Moderate snow accumulations. Near steady temperature in the mid 30s. Northwest winds 25 to 40 mph. Gusts up to 60 mph decreasing to 50 mph in the afternoon. Chance of snow 90 percent. .THURSDAY NIGHT...Breezy. Mostly cloudy with a 50 percent chance of snow. Lows in the lower 20s. .FRIDAY...Windy. Snow likely. Highs in the mid 30s. Chance of snow 70 percent. .FRIDAY NIGHT AND SATURDAY...Mostly cloudy. A 40 percent chance of snow. Lows around 20. Highs in the upper 30s. .SATURDAY NIGHT...Mostly cloudy with a 20 percent chance of snow. Lows around 20. .SUNDAY...Partly sunny. Slight chance of snow in the morning, then chance of snow in the afternoon. Highs in the lower 40s. Chance of snow 40 percent. .SUNDAY NIGHT...Mostly cloudy with a 20 percent chance of snow. Lows in the mid 20s. .MONDAY...Partly sunny. Slight chance of snow in the morning, then chance of snow and rain in the afternoon. Highs in the upper 40s. Chance of precipitation 40 percent. $$ MTZ314-212200- Fergus County below 4500ft- Including the cities of Hilger and Lewistown 337 AM MDT Tue Apr 21 2026 ...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH THURSDAY AFTERNOON... .TODAY...Mostly sunny. Highs around 80. Southwest winds up to 10 mph shifting to the southeast in the afternoon. Gusts up to 25 mph. .TONIGHT...Mostly cloudy. Lows in the lower 50s. South winds 5 to 15 mph. .WEDNESDAY...Partly sunny. Chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 73 to 79. Southwest winds 5 to 15 mph increasing to 15 to 20 mph in the afternoon. Chance of precipitation 50 percent. .WEDNESDAY NIGHT...Windy, colder. Rain showers and slight chance of thunderstorms in the evening, then rain and slight chance of snow after midnight. Lows in the lower 30s. West winds 15 to 30 mph. Gusts up to 45 mph increasing to 60 mph after midnight. Chance of precipitation near 100 percent. .THURSDAY...Windy. Much colder. Mostly cloudy. Snow and rain likely in the morning, then chance of snow and rain in the afternoon. Light snow accumulations. Snow level 3100 feet. Highs around 40. Northwest winds 25 to 35 mph. Gusts up to 60 mph decreasing to 50 mph in the afternoon. Chance of precipitation 70 percent. .THURSDAY NIGHT AND FRIDAY...Windy. Mostly cloudy with a 50 percent chance of snow. Lows in the mid 20s. Highs in the upper 30s. .FRIDAY NIGHT AND SATURDAY...Mostly cloudy. A 20 percent chance of snow. Lows in the mid 20s. Highs in the lower 40s. .SATURDAY NIGHT...Mostly cloudy. Lows in the lower 20s. .SUNDAY AND SUNDAY NIGHT...Mostly cloudy. A 20 percent chance of snow. Highs in the mid 40s. Lows in the upper 20s. .MONDAY...Partly sunny. A 20 percent chance of rain and snow in the afternoon. Highs around 50. && TEMPERATURE / PRECIPITATION Lewistown 79 50 72 / 10 10 50 $$ MTZ315-212200- Upper Blackfoot and MacDonald Pass- Including the cities of Marysville, Lincoln, Flesher Pass, and MacDonald Pass 337 AM MDT Tue Apr 21 2026 .TODAY...Sunny until late afternoon then becoming partly sunny. Highs 66 to 76. South winds up to 10 mph. Gusts up to 20 mph increasing to 30 mph in the afternoon. .TONIGHT...Mostly cloudy in the evening then becoming partly cloudy. Lows in the mid 40s. South winds up to 10 mph with gusts to around 30 mph. .WEDNESDAY...Mostly sunny with chance of rain showers in the morning, then cloudy with rain showers, snow showers and slight chance of thunderstorms in the afternoon. No snow accumulation. Highs 54 to 62. South winds 5 to 10 mph shifting to the southwest 10 to 20 mph in the afternoon. Gusts up to 35 mph. Chance of precipitation 90 percent. .WEDNESDAY NIGHT...Breezy, colder. Rain showers, snow showers and slight chance of thunderstorms in the evening, then snow after midnight. Moderate snow accumulations. Snow level 5400 feet. Lows in the upper 20s. West winds 10 to 25 mph decreasing to 10 to 15 mph after midnight. Gusts up to 40 mph. Chance of precipitation near 100 percent. .THURSDAY...Much colder. Snow. Moderate snow accumulations. Near steady temperature around 30. North winds 10 to 15 mph with gusts to around 35 mph. Chance of snow near 100 percent. .THURSDAY NIGHT...Mostly cloudy. Snow likely in the evening, then chance of snow after midnight. Light snow accumulations. Lows in the lower 20s. Chance of snow 70 percent. .FRIDAY...Snow in the morning, then snow likely in the afternoon. Light snow accumulations. Highs 27 to 35. Chance of snow 80 percent. .FRIDAY NIGHT...Mostly cloudy with a 20 percent chance of snow. Lows around 17. .SATURDAY...Partly sunny. Slight chance of snow in the morning, then chance of snow in the afternoon. Highs 32 to 40. Chance of snow 50 percent. .SATURDAY NIGHT...Mostly cloudy with a 20 percent chance of snow. Lows around 20. .SUNDAY...Partly sunny with a 40 percent chance of snow. Highs 35 to 43. .SUNDAY NIGHT...Mostly cloudy in the evening then becoming partly cloudy. A 20 percent chance of snow. Lows in the mid 20s. .MONDAY...Partly sunny. Slight chance of snow in the morning, then chance of snow in the afternoon. Highs 41 to 49. Chance of snow 50 percent. $$ MTZ316-212200- Gates of the Mountains- Including the cities of Canyon Creek, Wolf Creek, and Craig 337 AM MDT Tue Apr 21 2026 .TODAY...Mostly sunny. Highs 74 to 80. South winds up to 15 mph. .TONIGHT...Mostly cloudy in the evening then becoming partly cloudy. Lows in the upper 40s. South winds up to 10 mph with gusts to around 25 mph. .WEDNESDAY...Sunny with slight chance of rain showers in the morning, then cloudy with rain showers and slight chance of thunderstorms in the afternoon. Highs 62 to 68. South winds 5 to 10 mph with gusts to around 25 mph increasing to southwest 15 to 20 mph with gusts to around 35 mph in the afternoon. Chance of precipitation 90 percent. .WEDNESDAY NIGHT...Breezy, colder. Rain showers and slight chance of thunderstorms in the evening, then snow and rain after midnight. Moderate snow accumulations. Lows in the lower 30s. West winds 10 to 25 mph shifting to the northwest 10 to 15 mph after midnight. Gusts up to 45 mph. Chance of precipitation near 100 percent. .THURSDAY...Breezy. Much colder. Snow. Moderate snow accumulations. Highs 34 to 40. Northwest winds 10 to 15 mph shifting to the north 10 to 25 mph in the afternoon. Gusts up to 45 mph. Chance of snow near 100 percent. .THURSDAY NIGHT AND FRIDAY...Snow likely. Light snow accumulations. Lows in the mid 20s. Highs 33 to 39. Chance of snow 70 percent. .FRIDAY NIGHT...Mostly cloudy. A 20 percent chance of snow in the evening. Lows in the lower 20s. .SATURDAY...Partly sunny. Slight chance of snow in the morning, then chance of snow in the afternoon. Highs 37 to 43. Chance of snow 40 percent. .SATURDAY NIGHT...Mostly cloudy with a 20 percent chance of snow. Lows in the lower 20s. .SUNDAY...Partly sunny. Slight chance of snow in the morning, then chance of snow in the afternoon. Highs 40 to 46. Chance of snow 40 percent. .SUNDAY NIGHT...Mostly cloudy in the evening then becoming partly cloudy. A 20 percent chance of snow. Lows in the upper 20s. .MONDAY...Mostly sunny. Slight chance of snow in the morning, then chance of snow and rain in the afternoon. Highs 47 to 53. Chance of precipitation 40 percent. $$ MTZ317-212200- Little Belt and Highwood Mountains- Including the cities of Monarch, Neihart, and Kings Hill Pass 337 AM MDT Tue Apr 21 2026 ...WINTER STORM WATCH REMAINS IN EFFECT FROM WEDNESDAY EVENING THROUGH THURSDAY AFTERNOON... .TODAY...Mostly sunny. Highs 67 to 75. South winds up to 15 mph. Gusts up to 35 mph in the afternoon. .TONIGHT...Mostly cloudy. Lows 46 to 52. South winds 5 to 15 mph with gusts to around 35 mph. .WEDNESDAY...Breezy. Sunny in the morning, then mostly cloudy with rain showers likely and slight chance of thunderstorms in the afternoon. Highs 58 to 66. South winds 10 to 15 mph with gusts to around 35 mph shifting to the southwest 15 to 25 mph with gusts to around 45 mph in the afternoon. Chance of precipitation 70 percent. .WEDNESDAY NIGHT...Breezy. Much colder. Rain showers, snow showers and slight chance of thunderstorms in the evening, then snow after midnight. Snow may be heavy at times after midnight. Heavy snow accumulations. Snow level 5700 feet. Lows 23 to 29. West winds 15 to 25 mph. Gusts up to 45 mph increasing to 60 mph after midnight. Chance of precipitation near 100 percent. .THURSDAY...Windy. Much colder. Snow. Moderate snow accumulations. Near steady temperature in the upper 20s. Northwest winds 15 to 30 mph. Gusts up to 60 mph decreasing to 50 mph in the afternoon. Chance of snow near 100 percent. .THURSDAY NIGHT...Snow likely. Light snow accumulations. Lows 17 to 23. Chance of snow 70 percent. .FRIDAY...Snow in the morning, then snow likely in the afternoon. Light snow accumulations. Highs 24 to 32. Chance of snow 90 percent. .FRIDAY NIGHT...Mostly cloudy with a 40 percent chance of snow. Lows 14 to 20. .SATURDAY...Partly sunny with a 50 percent chance of snow. Highs 30 to 36. .SATURDAY NIGHT...Mostly cloudy with a 20 percent chance of snow. Lows 15 to 21. .SUNDAY...Partly sunny with a 40 percent chance of snow. Highs 32 to 40. .SUNDAY NIGHT...Mostly cloudy with a 20 percent chance of snow. Lows 20 to 26. .MONDAY...Not as cool. Partly sunny. Slight chance of snow in the morning, then chance of snow in the afternoon. Highs 39 to 47. Chance of snow 50 percent. $$ MTZ318-212200- Snowy and Judith Mountains- 337 AM MDT Tue Apr 21 2026 ...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH THURSDAY AFTERNOON... .TODAY...Mostly sunny. Highs 69 to 77. Southwest winds up to 15 mph. Gusts up to 30 mph in the afternoon. .TONIGHT...Mostly cloudy. Lows in the lower 50s. South winds 5 to 15 mph with gusts to around 30 mph. .WEDNESDAY...Breezy. Mostly sunny with slight chance of rain showers in the morning, then mostly cloudy with rain showers likely and slight chance of thunderstorms in the afternoon. Highs 63 to 71. Southwest winds 10 to 15 mph with gusts to around 30 mph increasing to 15 to 25 mph with gusts to around 40 mph in the afternoon. Chance of precipitation 70 percent. .WEDNESDAY NIGHT...Windy. Much colder. Rain showers and slight chance of thunderstorms in the evening, then snow and rain after midnight. Moderate snow accumulations. Lows in the upper 20s. West winds 15 to 25 mph with gusts to around 50 mph increasing to northwest 25 to 35 mph with gusts to around 65 mph after midnight. Chance of precipitation near 100 percent. .THURSDAY...Very windy. Much colder. Mostly cloudy. Snow in the morning, then chance of snow in the afternoon. Moderate snow accumulations. Near steady temperature around 30. Northwest winds 25 to 45 mph with gusts to around 70 mph decreasing to 20 to 35 mph with gusts to around 60 mph in the afternoon. Chance of snow 80 percent. .THURSDAY NIGHT...Windy. Mostly cloudy with a 50 percent chance of snow. Lows in the lower 20s. .FRIDAY...Windy. Mostly cloudy. Chance of snow in the morning, then snow likely in the afternoon. Light snow accumulations. Highs 27 to 33. Chance of snow 70 percent. .FRIDAY NIGHT...Breezy. Mostly cloudy with a 20 percent chance of snow. Lows around 18. .SATURDAY...Partly sunny with a 40 percent chance of snow. Highs 31 to 37. .SATURDAY NIGHT...Mostly cloudy with a 20 percent chance of snow. Lows around 19. .SUNDAY...Partly sunny. Slight chance of snow in the morning, then chance of snow in the afternoon. Highs 35 to 41. Chance of snow 40 percent. .SUNDAY NIGHT...Mostly cloudy with a 20 percent chance of snow. Lows in the lower 20s. .MONDAY...Partly sunny. Slight chance of snow in the morning, then chance of snow in the afternoon. Highs 40 to 46. Chance of snow 40 percent. $$ MTZ319-212200- Helena Valley- Including the city of Helena 337 AM MDT Tue Apr 21 2026 .TODAY...Sunny until late afternoon then becoming partly sunny. Highs in the lower 80s. Southeast winds up to 5 mph shifting to the south 5 to 15 mph with gusts to around 30 mph in the afternoon. .TONIGHT...Mostly cloudy in the evening then becoming partly cloudy. Lows in the upper 40s. Southeast winds 5 to 15 mph. .WEDNESDAY...Cooler. Sunny in the morning, then mostly cloudy with rain showers and slight chance of thunderstorms in the afternoon. Highs in the upper 60s. Southeast winds 5 to 10 mph shifting to the southwest 10 to 20 mph in the afternoon. Chance of precipitation 80 percent. .WEDNESDAY NIGHT...Colder. Rain showers and slight chance of thunderstorms in the evening, then rain after midnight. Lows in the lower 30s. West winds 10 to 20 mph with gusts to around 35 mph. Chance of precipitation near 100 percent. .THURSDAY...Much colder. Snow and rain in the morning, then snow in the afternoon. Light snow accumulations. Snow level 3800 feet. Highs in the lower 40s. Northwest winds 5 to 20 mph. Chance of precipitation 90 percent. .THURSDAY NIGHT AND FRIDAY...Mostly cloudy with snow likely. Lows in the mid 20s. Highs around 40. Chance of snow 70 percent. .FRIDAY NIGHT AND SATURDAY...Mostly cloudy. A 20 percent chance of snow. Lows in the lower 20s. Highs in the mid 40s. .SATURDAY NIGHT...Mostly cloudy. Lows in the lower 20s. .SUNDAY...Partly sunny with a 20 percent chance of snow. Highs in the upper 40s. .SUNDAY NIGHT...Mostly cloudy in the evening then becoming partly cloudy. Lows in the upper 20s. .MONDAY...Mostly sunny. A 20 percent chance of rain and snow in the afternoon. Highs in the mid 50s. && TEMPERATURE / PRECIPITATION Helena 81 47 66 / 0 0 80 $$ MTZ320-212200- Big Belt, Bridger and Castle Mountains- Including the cities of Trident, Maudlow, Battle Ridge Pass, Bozeman Pass, and Deep Creek Pass 337 AM MDT Tue Apr 21 2026 ...WINTER STORM WATCH REMAINS IN EFFECT FROM WEDNESDAY EVENING THROUGH THURSDAY AFTERNOON... .TODAY...Mostly sunny. Highs 66 to 74. South winds up to 10 mph with gusts to around 25 mph shifting to the southwest with gusts to around 40 mph in the afternoon. .TONIGHT...Mostly cloudy. Lows in the upper 40s. South winds 5 to 15 mph. Gusts up to 45 mph decreasing to 35 mph after midnight. .WEDNESDAY...Windy. Sunny in the morning, then mostly cloudy with chance of rain showers with possible snow showers and thunderstorms likely in the afternoon. Little or no snow accumulation. Highs 54 to 62. South winds 10 to 20 mph shifting to the southwest 15 to 30 mph in the afternoon. Gusts up to 55 mph. Chance of precipitation 70 percent. .WEDNESDAY NIGHT...Breezy. Much colder. Rain showers, snow showers and slight chance of thunderstorms in the evening, then snow after midnight. Heavy snow accumulations. Snow level 5700 feet. Lows 26 to 32. West winds 15 to 25 mph with gusts to around 65 mph. Chance of precipitation near 100 percent. .THURSDAY...Breezy. Much colder. Snow in the morning, then snow likely in the afternoon. Moderate snow accumulations. Near steady temperature around 30. Northwest winds 15 to 25 mph with gusts to around 65 mph. Chance of snow near 100 percent. .THURSDAY NIGHT AND FRIDAY...Snow likely. Light snow accumulations. Lows in the lower 20s. Highs 25 to 35. Chance of snow 70 percent. .FRIDAY NIGHT AND SATURDAY...Mostly cloudy. A 40 percent chance of snow. Lows around 19. Highs 31 to 41. .SATURDAY NIGHT...Mostly cloudy with a 20 percent chance of snow. Lows in the lower 20s. .SUNDAY...Partly sunny with a 40 percent chance of snow. Highs 34 to 44. .SUNDAY NIGHT...Mostly cloudy with a 20 percent chance of snow. Lows in the mid 20s. .MONDAY...Not as cool. Partly sunny. Slight chance of snow in the morning, then chance of snow in the afternoon. Highs 40 to 50. Chance of snow 40 percent. $$ MTZ321-212200- Meagher County Valleys- Including the cities of Martinsdale, Checkerboard, Ringling, and White Sulphur Springs 337 AM MDT Tue Apr 21 2026 .TODAY...Sunny until late afternoon then becoming partly sunny. Highs in the mid 70s. South winds up to 10 mph shifting to the southwest with gusts to around 40 mph in the afternoon. .TONIGHT...Mostly cloudy. Lows in the mid 40s. South winds 5 to 15 mph. Gusts up to 40 mph in the evening. .WEDNESDAY...Windy, cooler. Sunny in the morning, then mostly cloudy with rain showers likely and slight chance of thunderstorms in the afternoon. Highs in the lower 60s. South winds 10 to 15 mph with gusts to around 45 mph increasing to southwest 20 to 30 mph with gusts to around 55 mph in the afternoon. Chance of precipitation 70 percent. .WEDNESDAY NIGHT...Windy, colder. Rain showers, slight chance of thunderstorms and snow in the evening, then snow and rain after midnight. Light snow accumulations. Lows around 30. West winds 15 to 30 mph with gusts to around 55 mph. Chance of precipitation near 100 percent. .THURSDAY...Windy. Much colder. Snow in the morning, then snow likely in the afternoon. Moderate snow accumulations. Highs in the mid 30s. Northwest winds 15 to 30 mph. Gusts up to 60 mph decreasing to 50 mph in the afternoon. Chance of snow near 100 percent. .THURSDAY NIGHT AND FRIDAY...Breezy. Snow likely. Light snow accumulations. Lows in the lower 20s. Highs in the mid 30s. Chance of snow 70 percent. .FRIDAY NIGHT THROUGH SATURDAY NIGHT...Mostly cloudy with a 20 percent chance of snow. Lows around 20. Highs in the upper 30s. .SUNDAY...Partly sunny. Slight chance of snow in the morning, then chance of snow in the afternoon. Highs in the lower 40s. Chance of snow 40 percent. .SUNDAY NIGHT...Mostly cloudy with a 20 percent chance of snow. Lows in the mid 20s. .MONDAY...Mostly sunny. Slight chance of snow in the morning, then chance of snow in the afternoon. Highs in the upper 40s. Chance of snow 40 percent. $$ MTZ322-212200- Elkhorn and Boulder Mountains- Including the cities of Montana City, Clancy, Boulder, Corbin, Wickes, Elk Park Pass, and Homestake Pass 337 AM MDT Tue Apr 21 2026 .TODAY...Sunny until late afternoon then becoming partly sunny. Highs 64 to 74. South winds up to 10 mph with gusts to around 25 mph increasing to 10 to 15 mph with gusts to around 40 mph in the afternoon. .TONIGHT...Mostly cloudy in the evening then clearing. Lows 41 to 47. South winds 5 to 15 mph. Gusts up to 45 mph decreasing to 30 mph after midnight. .WEDNESDAY...Breezy. Mostly sunny with chance of snow showers and slight chance of rain showers in the morning, then mostly cloudy with rain showers, snow showers and slight chance of thunderstorms in the afternoon. Snow accumulation up to 1 inch. Highs 51 to 61. South winds 10 to 15 mph shifting to the southwest 15 to 25 mph in the afternoon. Gusts up to 50 mph. Chance of precipitation 90 percent. .WEDNESDAY NIGHT...Breezy, colder. Snow showers, rain showers and slight chance of thunderstorms in the evening, then snow after midnight. Heavy snow accumulations. Snow level 5500 feet. Lows 26 to 32. West winds 10 to 25 mph decreasing to 10 to 15 mph after midnight. Gusts up to 50 mph. Chance of precipitation near 100 percent. .THURSDAY...Colder. Snow in the morning, then snow showers and slight chance of thunderstorms in the afternoon. Moderate snow accumulations. Near steady temperature in the lower 30s. Northwest winds 10 to 20 mph with gusts to around 50 mph. Chance of precipitation near 100 percent. .THURSDAY NIGHT AND FRIDAY...Snow likely. Light snow accumulations. Lows 18 to 24. Highs 27 to 35. Chance of snow 70 percent. .FRIDAY NIGHT THROUGH SATURDAY NIGHT...Mostly cloudy with a 20 percent chance of snow. Lows 15 to 23. Highs 32 to 40. .SUNDAY...Partly sunny. Slight chance of snow in the morning, then chance of snow in the afternoon. Highs 35 to 43. Chance of snow 40 percent. .SUNDAY NIGHT...Mostly cloudy with a 20 percent chance of snow in the evening, then partly cloudy after midnight. Lows 21 to 27. .MONDAY...Not as cool. Mostly sunny. Slight chance of snow in the morning, then chance of snow in the afternoon. Highs 40 to 50. Chance of snow 40 percent. $$ MTZ323-212200- Canyon Ferry Area- Including the cities of Toston, Townsend, and Winston 337 AM MDT Tue Apr 21 2026 .TODAY...Sunny until late afternoon then becoming partly sunny. Highs in the upper 70s. Southeast winds up to 10 mph shifting to the south with gusts to around 40 mph in the afternoon. .TONIGHT...Mostly cloudy in the evening then becoming partly cloudy. Lows in the upper 40s. South winds 5 to 15 mph. Gusts up to 40 mph in the evening. .WEDNESDAY...Windy, cooler. Sunny in the morning, then mostly cloudy with rain showers likely and slight chance of thunderstorms in the afternoon. Highs in the mid 60s. South winds 10 to 15 mph with gusts to around 35 mph increasing to 20 to 30 mph with gusts to around 50 mph in the afternoon. Chance of precipitation 70 percent. .WEDNESDAY NIGHT...Breezy, colder. Rain showers and slight chance of thunderstorms in the evening, then rain and slight chance of snow after midnight. Lows in the mid 30s. West winds 15 to 25 mph with gusts to around 40 mph. Chance of precipitation near 100 percent. .THURSDAY...Breezy. Much colder. Snow and rain in the morning, then snow and rain likely in the afternoon. Light snow accumulations. Snow level 4100 feet. Near steady temperature in the upper 30s. Northwest winds 15 to 25 mph with gusts to around 40 mph. Chance of precipitation 90 percent. .THURSDAY NIGHT AND FRIDAY...Mostly cloudy with snow likely. Light snow accumulations. Lows in the upper 20s. Highs around 40. Chance of snow 70 percent. .FRIDAY NIGHT THROUGH SUNDAY...Mostly cloudy with a 20 percent chance of snow. Lows in the mid 20s. Highs in the upper 40s. .SUNDAY NIGHT...Mostly cloudy with a 20 percent chance of snow in the evening, then partly cloudy after midnight. Lows around 30. .MONDAY...Mostly sunny. A 20 percent chance of rain and snow in the afternoon. Highs in the mid 50s. $$ MTZ324-212200- Missouri Headwaters- Including the cities of Harrison, Three Forks, Willow Creek, Pony, and Whitehall 337 AM MDT Tue Apr 21 2026 .TODAY...Mostly sunny. Highs in the upper 70s. South winds up to 5 mph with gusts to around 20 mph increasing to 15 to 20 mph with gusts to around 35 mph in the afternoon. .TONIGHT...Mostly cloudy in the evening then becoming partly cloudy. Lows in the mid 40s. South winds 10 to 15 mph with gusts to around 35 mph decreasing to up to 10 mph with gusts to around 25 mph after midnight. .WEDNESDAY...Windy, cooler. Sunny with slight chance of rain showers in the morning, then mostly cloudy with rain showers likely and slight chance of thunderstorms in the afternoon. Highs in the lower 60s. South winds 10 to 15 mph with gusts to around 40 mph increasing to southwest 20 to 35 mph with gusts to around 50 mph in the afternoon. Chance of precipitation 70 percent. .WEDNESDAY NIGHT...Breezy, colder. Rain showers and slight chance of thunderstorms in the evening, then rain and slight chance of snow after midnight. Lows in the mid 30s. West winds 10 to 25 mph with gusts to around 40 mph. Chance of precipitation near 100 percent. .THURSDAY...Breezy. Much colder. Snow and rain in the morning, then snow showers with possible showers and thunderstorms likely in the afternoon. Light snow accumulations. Snow level 4700 feet. Near steady temperature in the upper 30s. Northwest winds 10 to 15 mph shifting to the north 15 to 25 mph in the afternoon. Gusts up to 40 mph. Chance of precipitation 90 percent. .THURSDAY NIGHT...Mostly cloudy. Snow likely in the evening, then chance of snow after midnight. Light snow accumulations. Lows in the mid 20s. Chance of snow 70 percent. .FRIDAY...Mostly cloudy with a 50 percent chance of snow. Highs in the upper 30s. .FRIDAY NIGHT...Mostly cloudy. A 20 percent chance of snow in the evening. Lows in the lower 20s. .SATURDAY...Mostly sunny. Highs in the mid 40s. .SATURDAY NIGHT...Mostly cloudy in the evening then becoming partly cloudy. Lows in the mid 20s. .SUNDAY...Partly sunny. A 20 percent chance of snow in the afternoon. Highs in the upper 40s. .SUNDAY NIGHT...Mostly cloudy in the evening then becoming partly cloudy. Lows in the upper 20s. .MONDAY...Mostly sunny. A 20 percent chance of rain and snow in the afternoon. Highs in the lower 50s. $$ MTZ325-212200- Madison River Valley- Including the cities of Cameron, Ennis, Jeffers, McAllister, and Norris 337 AM MDT Tue Apr 21 2026 .TODAY...Breezy. Mostly sunny until late afternoon then becoming mostly cloudy. Highs in the lower 70s. South winds 5 to 15 mph increasing to 15 to 25 mph in the afternoon. .TONIGHT...Mostly cloudy in the evening then becoming partly cloudy. Lows in the mid 40s. South winds 10 to 20 mph with gusts to around 35 mph. .WEDNESDAY...Windy, cooler. Partly sunny. Chance of rain showers in the morning, then rain showers likely and slight chance of thunderstorms in the afternoon. Highs 55 to 61. South winds 15 to 30 mph increasing to 25 to 35 mph in the afternoon. Gusts up to 50 mph. Chance of precipitation 70 percent. .WEDNESDAY NIGHT...Windy, colder. Rain showers, slight chance of thunderstorms and snow in the evening, then snow and rain after midnight. Light snow accumulations. Lows in the lower 30s. Southwest winds 15 to 30 mph decreasing to 10 to 15 mph with gusts to around 30 mph after midnight. Chance of precipitation near 100 percent. .THURSDAY...Colder. Snow and rain in the morning, then snow showers and slight chance of thunderstorms in the afternoon. Light snow accumulations. Snow level 5100 feet. Highs around 40. Northwest winds 10 to 20 mph. Chance of precipitation 90 percent. .THURSDAY NIGHT AND FRIDAY...Snow likely. Moderate snow accumulations. Lows in the lower 20s. Highs in the upper 30s. Chance of snow 70 percent. .FRIDAY NIGHT THROUGH SUNDAY...Mostly cloudy with a 20 percent chance of snow. Lows around 20. Highs in the mid 40s. .SUNDAY NIGHT...Mostly cloudy. A 20 percent chance of snow in the evening. Lows in the upper 20s. .MONDAY...Mostly sunny. A 20 percent chance of rain and snow in the afternoon. Highs in the lower 50s. $$ MTZ326-212200- Gallatin Valley- Including the cities of Bozeman and Gallatin Gateway 337 AM MDT Tue Apr 21 2026 .TODAY...Mostly sunny. Highs in the upper 70s. Southeast winds up to 5 mph shifting to the southwest 5 to 15 mph with gusts to around 30 mph in the afternoon. .TONIGHT...Mostly cloudy. Lows in the mid 40s. Southeast winds 5 to 15 mph. Gusts up to 30 mph in the evening. .WEDNESDAY...Windy, cooler. Sunny with slight chance of rain showers in the morning, then partly sunny with chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the mid 60s. South winds 5 to 15 mph with gusts to around 30 mph increasing to southwest 15 to 30 mph with gusts to around 45 mph in the afternoon. Chance of precipitation 50 percent. .WEDNESDAY NIGHT...Breezy, colder. Rain showers in the evening, then rain and slight chance of snow after midnight. Lows in the lower 30s. Southwest winds 15 to 25 mph shifting to the west 10 to 15 mph after midnight. Chance of precipitation near 100 percent. .THURSDAY...Much colder. Snow and rain in the morning, then snow showers, rain showers likely and slight chance of thunderstorms in the afternoon. Light snow accumulations. Snow level 4700 feet. Near steady temperature in the mid 30s. Northwest winds 10 to 20 mph. Chance of precipitation 90 percent. .THURSDAY NIGHT AND FRIDAY...Snow likely. Light snow accumulations. Lows in the mid 20s. Highs in the upper 30s. Chance of snow 70 percent. .FRIDAY NIGHT AND SATURDAY...Mostly cloudy. A 20 percent chance of snow. Lows around 20. Highs in the mid 40s. .SATURDAY NIGHT...Partly cloudy with a 20 percent chance of snow. Lows in the lower 20s. .SUNDAY...Partly sunny with a 20 percent chance of snow. Highs in the upper 40s. .SUNDAY NIGHT...Mostly cloudy. Slight chance of rain and snow in the evening, then slight chance of snow after midnight. Lows in the upper 20s. Chance of precipitation 20 percent. .MONDAY...Mostly sunny. Slight chance of snow in the morning, then slight chance of rain and snow in the afternoon. Highs in the lower 50s. Chance of precipitation 20 percent. && TEMPERATURE / PRECIPITATION Bozeman Airport 78 42 64 / 0 0 50 Bozeman MSU 76 47 63 / 0 0 50 $$ MTZ330-212200- Gallatin and Madison County Mountains and Centennial Mountains- Including the cities of Big Sky, West Yellowstone, Targhee Pass, and Raynolds Pass 337 AM MDT Tue Apr 21 2026 ...WINTER STORM WATCH REMAINS IN EFFECT FROM WEDNESDAY EVENING THROUGH THURSDAY AFTERNOON... .TODAY...Breezy. Mostly sunny. Highs 55 to 67. South winds 5 to 15 mph with gusts to around 35 mph increasing to 10 to 25 mph with gusts to around 45 mph in the afternoon. .TONIGHT...Partly cloudy. Lows 34 to 42. South winds 10 to 15 mph with gusts to around 45 mph. .WEDNESDAY...Windy. Mostly cloudy. Chance of rain showers and snow showers in the morning, then snow showers with possible showers and thunderstorms likely in the afternoon. Snow accumulation up to 3 inches. Snow level 7400 feet. Highs 40 to 52. South winds 15 to 30 mph with gusts to around 55 mph. Chance of precipitation 90 percent. .WEDNESDAY NIGHT...Breezy, colder. Snow showers and slight chance of thunderstorms in the evening, then snow after midnight. Heavy snow accumulations. Lows 24 to 30. Southwest winds 10 to 25 mph shifting to the west 10 to 15 mph after midnight. Gusts up to 40 mph. Chance of precipitation near 100 percent. .THURSDAY...Snow in the morning, then snow showers and slight chance of thunderstorms in the afternoon. Moderate snow accumulations. Highs 27 to 37. West winds 10 to 20 mph with gusts to around 35 mph. Chance of precipitation 90 percent. .THURSDAY NIGHT AND FRIDAY...Snow likely. Heavy snow accumulations. Lows 14 to 20. Highs 24 to 34. Chance of snow 70 percent. .FRIDAY NIGHT...Mostly cloudy. A 50 percent chance of snow in the evening. Lows 10 to 16. .SATURDAY...Partly sunny with a 20 percent chance of snow. Highs 29 to 39. .SATURDAY NIGHT...Partly cloudy in the evening then becoming mostly cloudy. A 20 percent chance of snow. Lows 15 to 21. .SUNDAY...Partly sunny. Slight chance of snow in the morning, then chance of snow in the afternoon. Highs 32 to 42. Chance of snow 50 percent. .SUNDAY NIGHT...Mostly cloudy with a 20 percent chance of snow. Lows 19 to 25. .MONDAY...Mostly sunny. Slight chance of snow in the morning, then chance of snow in the afternoon. Highs 36 to 46. Chance of snow 50 percent. && TEMPERATURE / PRECIPITATION West Yellowstone 67 34 48 / 0 20 80 $$ MTZ327-212200- Northwest Beaverhead County- Including the cities of Dewey, Wisdom, Wise River, Big Hole Pass, and Chief Joseph Pass 337 AM MDT Tue Apr 21 2026 .TODAY...Mostly sunny. Highs 59 to 69. South winds up to 10 mph increasing to 10 to 15 mph in the afternoon. Gusts up to 40 mph. .TONIGHT...Mostly clear. Lows in the upper 30s. South winds 5 to 15 mph. Gusts up to 40 mph decreasing to 30 mph after midnight. .WEDNESDAY...Cooler. Rain showers and snow showers likely in the morning, then snow showers, rain showers and slight chance of thunderstorms in the afternoon. Snow accumulation up to 5 inches. Snow level 7200 feet. Highs 42 to 52. Southwest winds 10 to 20 mph with gusts to around 45 mph. Chance of precipitation near 100 percent. .WEDNESDAY NIGHT...Colder. Snow showers in the evening, then snow after midnight. Moderate snow accumulations. Lows in the mid 20s. West winds 10 to 20 mph with gusts to around 45 mph. Chance of snow near 100 percent. .THURSDAY...Snow likely in the morning, then snow in the afternoon. Moderate snow accumulations. Highs 29 to 39. Northwest winds 10 to 20 mph with gusts to around 45 mph. Chance of snow 90 percent. .THURSDAY NIGHT...Snow in the evening, then snow likely after midnight. Moderate snow accumulations. Lows around 19. Chance of snow 90 percent. .FRIDAY...Snow likely. Light snow accumulations. Highs 26 to 36. Chance of snow 70 percent. .FRIDAY NIGHT AND SATURDAY...Mostly cloudy. A 40 percent chance of snow. Lows around 15. Highs 30 to 40. .SATURDAY NIGHT...Mostly cloudy in the evening then becoming partly cloudy. A 20 percent chance of snow. Lows around 19. .SUNDAY...Partly sunny. Slight chance of snow in the morning, then chance of snow in the afternoon. Highs 33 to 43. Chance of snow 40 percent. .SUNDAY NIGHT...Mostly cloudy with a 20 percent chance of snow in the evening, then partly cloudy after midnight. Lows in the lower 20s. .MONDAY...Mostly sunny. Slight chance of snow in the morning, then chance of snow in the afternoon. Highs 37 to 47. Chance of snow 40 percent. $$ MTZ328-212200- Beaverhead and Western Madison below 6000ft- Including the cities of Bannack, Dillon, Glen, and Waterloo 337 AM MDT Tue Apr 21 2026 .TODAY...Breezy. Mostly sunny. Highs 69 to 75. South winds up to 10 mph with gusts to around 30 mph increasing to 15 to 25 mph with gusts to around 45 mph in the afternoon. .TONIGHT...Partly cloudy. Lows in the lower 40s. South winds 15 to 20 mph with gusts to around 45 mph decreasing to 5 to 15 mph with gusts to around 30 mph after midnight. .WEDNESDAY...Windy, cooler. Partly sunny. Chance of rain showers in the morning, then rain showers and slight chance of thunderstorms in the afternoon. Highs 53 to 59. South winds 15 to 20 mph shifting to the southwest 20 to 30 mph in the afternoon. Gusts up to 50 mph. Chance of precipitation 90 percent. .WEDNESDAY NIGHT...Breezy, colder. Rain showers and snow in the evening, then snow and rain after midnight. Moderate snow accumulations. Snow level 5800 feet. Lows in the lower 30s. West winds 10 to 25 mph decreasing to 10 to 15 mph after midnight. Gusts up to 40 mph. Chance of precipitation near 100 percent. .THURSDAY...Breezy, cooler. Snow and rain likely in the morning, then snow showers and slight chance of thunderstorms in the afternoon. Moderate snow accumulations. Highs 39 to 45. West winds 10 to 15 mph shifting to the northwest 15 to 25 mph in the afternoon. Gusts up to 40 mph. Chance of precipitation 90 percent. .THURSDAY NIGHT...Mostly cloudy. Snow likely in the evening, then chance of snow after midnight. Light snow accumulations. Lows in the lower 20s. Chance of snow 70 percent. .FRIDAY...Mostly cloudy with a 50 percent chance of snow. Highs 35 to 41. .FRIDAY NIGHT...Mostly cloudy. A 20 percent chance of snow in the evening. Lows around 19. .SATURDAY...Partly sunny. Highs 39 to 45. .SATURDAY NIGHT...Partly cloudy. Lows in the lower 20s. .SUNDAY...Partly sunny. A 20 percent chance of snow in the afternoon. Highs 42 to 48. .SUNDAY NIGHT...Mostly cloudy in the evening then becoming partly cloudy. Lows in the upper 20s. .MONDAY...Mostly sunny. A 20 percent chance of snow in the afternoon. Highs 48 to 54. && TEMPERATURE / PRECIPITATION Dillon 74 43 59 / 0 0 70 $$ MTZ329-212200- Ruby Mountains and Southern Beaverhead Mountains- Including the city of Monida Pass 337 AM MDT Tue Apr 21 2026 .TODAY...Windy. Mostly sunny. Highs 59 to 67. South winds 5 to 15 mph increasing to 20 to 30 mph in the afternoon. Gusts up to 50 mph. .TONIGHT...Windy. Mostly clear. Lows 36 to 42. South winds 15 to 30 mph with gusts to around 55 mph decreasing to 15 to 20 mph with gusts to around 45 mph after midnight. .WEDNESDAY...Windy, cooler. Partly sunny with chance of rain showers and snow showers in the morning, then snow showers, rain showers and slight chance of thunderstorms in the afternoon. Snow accumulation up to 3 inches. Snow level 7200 feet. Highs 42 to 50. South winds 15 to 35 mph with gusts to around 50 mph. Chance of precipitation near 100 percent. .WEDNESDAY NIGHT...Breezy, colder. Snow showers in the evening, then snow after midnight. Moderate snow accumulations. Lows in the upper 20s. West winds 15 to 25 mph with gusts to around 45 mph. Chance of snow 90 percent. .THURSDAY...Breezy. Mostly cloudy. Chance of snow in the morning, then snow likely in the afternoon. Light snow accumulations. Highs 31 to 39. Northwest winds 10 to 25 mph with gusts to around 45 mph. Chance of snow 70 percent. .THURSDAY NIGHT...Breezy. Mostly cloudy. Snow likely in the evening, then chance of snow after midnight. Heavy snow accumulations. Lows around 19. Chance of snow 70 percent. .FRIDAY...Mostly cloudy with a 50 percent chance of snow. Highs 26 to 34. .FRIDAY NIGHT AND SATURDAY...Mostly cloudy. A 20 percent chance of snow. Lows around 16. Highs 31 to 39. .SATURDAY NIGHT...Partly cloudy. A 20 percent chance of snow in the evening. Lows around 20. .SUNDAY AND SUNDAY NIGHT...Mostly cloudy. A 20 percent chance of snow. Highs 34 to 42. Lows in the mid 20s. .MONDAY...Mostly sunny. A 20 percent chance of snow in the afternoon. Highs 39 to 47. $$