FPUS55 KTFX 181357 ZFPTFX Zone Forecast Product for Central and Southwest Montana National Weather Service Great Falls MT 656 AM MST Wed Feb 18 2026 Spot temperatures and probabilities of measurable precipitation are for today, tonight, and Thursday. MTZ301-182300- East Glacier Park Region- Including the cities of East Glacier Park, Kiowa, Babb, Saint Mary, Marias Pass, and Logan Pass 656 AM MST Wed Feb 18 2026 ...EXTREME COLD WARNING REMAINS IN EFFECT UNTIL NOON MST WEDNESDAY... ...COLD WEATHER ADVISORY IN EFFECT FROM NOON WEDNESDAY TO NOON MST THURSDAY... .REST OF TODAY...Much colder. Mostly cloudy. Chance of snow through the day. Highs around 5 below. Northeast winds 10 to 15 mph with gusts to around 30 mph. Chance of snow 50 percent. .TONIGHT...Mostly cloudy with a 20 percent chance of snow. Near steady temperature around 10 below. Northeast winds up to 15 mph. .THURSDAY...Not as cold. Mostly sunny with a 20 percent chance of snow. Highs 12 to 18. South winds up to 10 mph. .THURSDAY NIGHT...Not as cold. Partly cloudy in the evening then becoming mostly cloudy. A 20 percent chance of snow. Lows around 5. Southwest winds up to 10 mph. .FRIDAY...Not as cold. Partly sunny with a 50 percent chance of snow. Highs 16 to 26. Southwest winds 5 to 15 mph. Gusts up to 35 mph in the afternoon. .FRIDAY NIGHT AND SATURDAY...Mostly cloudy. A 20 percent chance of snow. Lows around 10. Highs 18 to 26. .SATURDAY NIGHT...Mostly cloudy with a 20 percent chance of snow. Lows around 4. .SUNDAY...Mostly cloudy with a 40 percent chance of snow. Highs 17 to 23. .SUNDAY NIGHT AND MONDAY...Not as cold. Mostly cloudy. A 50 percent chance of snow. Lows around 10. Highs 28 to 36. .MONDAY NIGHT...Snow likely. Moderate snow accumulations. Lows 16 to 22. Chance of snow 70 percent. .TUESDAY...Breezy. Partly sunny with a 50 percent chance of snow. Highs 25 to 33. $$ MTZ307-182300- Southern Rocky Mountain Front- Including the city of Rogers Pass 656 AM MST Wed Feb 18 2026 ...COLD WEATHER ADVISORY NOW IN EFFECT UNTIL NOON MST THURSDAY... .REST OF TODAY...Much colder. Mostly cloudy. Chance of snow early in the morning, then snow likely in the late morning and early afternoon. Chance of snow late in the afternoon. Snow accumulation up to 2 inches. Highs 4 below to 4 above zero. Northeast winds 5 to 15 mph with gusts to around 35 mph. Chance of snow 70 percent. .TONIGHT...Mostly cloudy with a 50 percent chance of snow. Lows around 9 below. Northeast winds 5 to 10 mph shifting to the south after midnight. Gusts up to 30 mph. .THURSDAY...Not as cold. Partly sunny with a 40 percent chance of snow. Highs 14 to 22. Southwest winds up to 10 mph. Gusts up to 25 mph in the afternoon. .THURSDAY NIGHT...Not as cold. Partly cloudy with a 20 percent chance of snow. Lows around 5. Southwest winds up to 10 mph with gusts to around 25 mph. .FRIDAY...Partly sunny. Slight chance of snow in the morning, then chance of snow in the afternoon. Highs 17 to 25. West winds 5 to 15 mph with gusts to around 30 mph. Chance of snow 50 percent. .FRIDAY NIGHT...Mostly cloudy with chance of snow in the evening, then partly cloudy with slight chance of snow after midnight. Lows 5 to 11. Chance of snow 50 percent. .SATURDAY...Mostly sunny with a 20 percent chance of snow. Highs 20 to 28. .SATURDAY NIGHT...Mostly cloudy with a 20 percent chance of snow. Lows around 6. .SUNDAY...Partly sunny. Slight chance of snow in the morning, then chance of snow in the afternoon. Highs 19 to 29. Chance of snow 40 percent. .SUNDAY NIGHT AND MONDAY...Not as cool. Mostly cloudy. A 50 percent chance of snow. Lows around 14. Highs 32 to 40. .MONDAY NIGHT...Snow likely in the evening, then snow after midnight. Light snow accumulations. Lows 19 to 25. Chance of snow 80 percent. .TUESDAY...Snow likely. Light snow accumulations. Highs 26 to 36. Chance of snow 70 percent. $$ MTZ302-182300- Northern High Plains- Including the cities of Browning, Heart Butte, and Dupuyer 656 AM MST Wed Feb 18 2026 ...EXTREME COLD WARNING REMAINS IN EFFECT UNTIL NOON MST WEDNESDAY... ...COLD WEATHER ADVISORY IN EFFECT FROM NOON WEDNESDAY TO NOON MST THURSDAY... .REST OF TODAY...Much colder. Mostly cloudy. Slight chance of snow early in the morning, then chance of snow in the late morning and early afternoon. Slight chance of snow late in the afternoon. Highs around 3 below. North winds 10 to 15 mph with gusts to around 30 mph. Chance of snow 50 percent. .TONIGHT...Mostly cloudy with a 20 percent chance of snow. Lows around 14 below. North winds up to 10 mph. .THURSDAY...Not as cold. Mostly sunny. A 20 percent chance of snow in the morning. Highs 8 to 14. Southeast winds up to 10 mph. .THURSDAY NIGHT...Partly cloudy in the evening then becoming mostly cloudy. Lows 4 below to 2 above zero. Southeast winds up to 10 mph shifting to the southwest after midnight. .FRIDAY...Not as cold. Mostly sunny. A 20 percent chance of snow in the afternoon. Highs in the upper 20s. West winds up to 15 mph. Gusts up to 30 mph in the afternoon. .FRIDAY NIGHT AND SATURDAY...Partly cloudy. Lows 5 to 11. Highs in the lower 20s. .SATURDAY NIGHT AND SUNDAY...Mostly cloudy with a 20 percent chance of snow. Lows around 3. Highs around 18. .SUNDAY NIGHT AND MONDAY...Not as cool. Mostly cloudy. A 20 percent chance of snow. Lows around 9. Highs in the mid 30s. .MONDAY NIGHT...Mostly cloudy with a 50 percent chance of snow. Lows 10 to 18. .TUESDAY...Partly sunny with a 20 percent chance of snow. Highs in the lower 30s. $$ MTZ308-182300- Southern High Plains- Including the cities of Bynum, Choteau, and Pendroy 656 AM MST Wed Feb 18 2026 ...COLD WEATHER ADVISORY NOW IN EFFECT UNTIL NOON MST THURSDAY... .REST OF TODAY...Much colder. Mostly cloudy with a 50 percent chance of snow. Highs near zero. North winds 5 to 15 mph. .TONIGHT...Mostly cloudy. Chance of snow in the evening, then slight chance of snow after midnight. Lows around 11 below. North winds up to 10 mph. Chance of snow 40 percent. .THURSDAY...Not as cold. Mostly sunny with a 20 percent chance of snow. Highs 10 to 18. Southeast winds up to 10 mph. .THURSDAY NIGHT...Partly cloudy. Lows 2 below to 6 above zero. Southeast winds up to 5 mph shifting to the southwest after midnight. .FRIDAY...Not as cold. Partly sunny. A 20 percent chance of snow in the afternoon. Highs around 30. West winds up to 10 mph. Gusts up to 25 mph in the afternoon. .FRIDAY NIGHT...Partly cloudy. A 20 percent chance of snow in the evening. Lows 6 to 12. .SATURDAY...Mostly sunny. Highs 25 to 31. .SATURDAY NIGHT...Partly cloudy in the evening then becoming mostly cloudy. A 20 percent chance of snow. Lows 3 to 9. .SUNDAY AND SUNDAY NIGHT...Mostly cloudy with a 20 percent chance of snow. Highs 20 to 26. Lows 8 to 14. .MONDAY...Not as cold. Mostly sunny with a 20 percent chance of snow. Highs 38 to 44. .MONDAY NIGHT AND TUESDAY...Mostly cloudy. A 50 percent chance of snow. Lows 16 to 26. Highs in the upper 30s. $$ MTZ303-182300- Eastern Glacier, Western Toole, and Central Pondera- Including the cities of Cut Bank, Ethridge, and Santa Rita 656 AM MST Wed Feb 18 2026 ...EXTREME COLD WARNING REMAINS IN EFFECT UNTIL NOON MST WEDNESDAY... ...COLD WEATHER ADVISORY IN EFFECT FROM NOON WEDNESDAY TO NOON MST THURSDAY... .REST OF TODAY...Much colder. Mostly cloudy. Slight chance of snow early in the morning, then chance of snow late in the morning. Slight chance of snow in the afternoon. Highs around 4 below. North winds 10 to 20 mph. Chance of snow 50 percent. .TONIGHT...Mostly cloudy. A 20 percent chance of snow in the evening. Lows around 17 below. North winds up to 15 mph. .THURSDAY...Partly sunny. Highs around 5. North winds up to 5 mph shifting to the southeast in the afternoon. .THURSDAY NIGHT...Partly cloudy in the evening then becoming mostly cloudy. Lows around 8 below. South winds up to 10 mph. .FRIDAY...Not as cold. Partly sunny. Highs 20 to 26. Southwest winds up to 10 mph. .FRIDAY NIGHT AND SATURDAY...Partly cloudy. Lows near zero. Highs around 19. .SATURDAY NIGHT AND SUNDAY...Mostly cloudy. Lows around 2 below. Highs around 17. .SUNDAY NIGHT AND MONDAY...Not as cold. Mostly cloudy. Lows around 4. Highs in the upper 20s. .MONDAY NIGHT AND TUESDAY...Mostly cloudy. A 20 percent chance of snow. Lows around 8. Highs in the upper 20s. && TEMPERATURE / PRECIPITATION Cut Bank -4 -18 5 / 40 20 10 $$ MTZ304-182300- Eastern Toole and Liberty- Including the cities of Devon, Shelby, Chester, Galata, Joplin, Lothair, and Whitlash 656 AM MST Wed Feb 18 2026 ...EXTREME COLD WARNING REMAINS IN EFFECT UNTIL NOON MST WEDNESDAY... ...COLD WEATHER ADVISORY IN EFFECT FROM NOON WEDNESDAY TO NOON MST THURSDAY... .REST OF TODAY...Much colder. Mostly cloudy. Slight chance of snow in the late morning and early afternoon. Chance of snow late in the afternoon. Highs 3 below to 3 above zero. Northwest winds 10 to 15 mph with gusts to around 40 mph. Chance of snow 50 percent. .TONIGHT...Mostly cloudy with a 20 percent chance of snow. Lows around 14 below. Northwest winds 5 to 15 mph with gusts to around 30 mph. .THURSDAY...Mostly cloudy with a 20 percent chance of snow in the morning, then mostly sunny in the afternoon. Highs around 8. Northwest winds up to 5 mph shifting to the south in the afternoon. .THURSDAY NIGHT...Partly cloudy. Lows around 7 below. Southeast winds up to 5 mph. .FRIDAY...Not as cold. Partly sunny. Highs around 20. South winds up to 5 mph. .FRIDAY NIGHT THROUGH SATURDAY NIGHT...Partly cloudy. Lows around 1 below. Highs 17 to 23. .SUNDAY AND SUNDAY NIGHT...Mostly cloudy. Highs 17 to 23. Lows around 5. .MONDAY...Not as cold. Partly sunny. Highs 28 to 34. .MONDAY NIGHT AND TUESDAY...Mostly cloudy. A 20 percent chance of snow. Lows around 8. Highs 25 to 31. $$ MTZ305-182300- Hill County- Including the city of Havre 656 AM MST Wed Feb 18 2026 ...COLD WEATHER ADVISORY NOW IN EFFECT UNTIL NOON MST THURSDAY... .REST OF TODAY...Breezy. Much colder. Partly sunny. A 20 percent chance of snow in the afternoon. Highs around 4. Northwest winds 10 to 25 mph. .TONIGHT...Mostly cloudy with a 20 percent chance of snow. Lows around 11 below. Northwest winds 5 to 15 mph. .THURSDAY...Mostly cloudy with a 20 percent chance of snow. Highs around 10. Northwest winds up to 10 mph. .THURSDAY NIGHT...Mostly clear. Lows around 6 below. East winds up to 5 mph. .FRIDAY...Partly sunny. Highs around 20. East winds up to 5 mph shifting to the south in the afternoon. .FRIDAY NIGHT THROUGH SATURDAY NIGHT...Partly cloudy. Lows around 1 below. Highs in the lower 20s. .SUNDAY AND SUNDAY NIGHT...Mostly cloudy. Highs in the lower 20s. Lows around 6. .MONDAY...Partly sunny. Highs in the lower 30s. .MONDAY NIGHT AND TUESDAY...Mostly cloudy with a 20 percent chance of snow. Lows around 10. Highs in the upper 20s. && TEMPERATURE / PRECIPITATION Havre 6 -12 10 / 10 30 20 $$ MTZ306-182300- Northern Blaine County- Including the cities of Chinook, Zurich, Harlem, Hogeland, and Fort Belknap 656 AM MST Wed Feb 18 2026 ...COLD WEATHER ADVISORY NOW IN EFFECT UNTIL NOON MST THURSDAY... .REST OF TODAY...Windy. Much colder. Partly sunny. Highs around 8. Northwest winds 15 to 30 mph. .TONIGHT...Mostly cloudy with a 20 percent chance of snow. Lows around 9 below. Northwest winds 10 to 20 mph. .THURSDAY...Mostly cloudy with a 20 percent chance of snow. Highs around 10. Northwest winds up to 10 mph. .THURSDAY NIGHT...Partly cloudy. Lows around 5 below. East winds up to 10 mph. .FRIDAY...Mostly sunny. Highs around 20. Southeast winds up to 10 mph. .FRIDAY NIGHT AND SATURDAY...Partly cloudy. Lows around 2 below. Highs 19 to 25. .SATURDAY NIGHT...Mostly clear. Lows around 2 below. .SUNDAY...Mostly sunny. Highs 17 to 23. .SUNDAY NIGHT AND MONDAY...Not as cold. Mostly cloudy. Lows around 5. Highs 29 to 35. .MONDAY NIGHT AND TUESDAY...Mostly cloudy with a 20 percent chance of snow. Lows around 10. Highs in the upper 20s. $$ MTZ309-182300- Eastern Pondera and Eastern Teton- Including the cities of Brady, Conrad, and Ledger 656 AM MST Wed Feb 18 2026 ...COLD WEATHER ADVISORY NOW IN EFFECT UNTIL NOON MST THURSDAY... .REST OF TODAY...Much colder. Mostly cloudy. Slight chance of snow early in the morning, then chance of snow in the late morning and afternoon. Highs around 1 below. North winds 10 to 15 mph. Chance of snow 50 percent. .TONIGHT...Mostly cloudy. Chance of snow in the evening, then slight chance of snow after midnight. Lows around 14 below. North winds up to 10 mph. Chance of snow 40 percent. .THURSDAY...Not as cold. Mostly sunny. A 20 percent chance of snow in the morning. Highs around 10. Northwest winds up to 5 mph shifting to the southeast in the afternoon. .THURSDAY NIGHT...Partly cloudy. Lows around 7 below. East winds up to 5 mph shifting to the south after midnight. .FRIDAY...Not as cold. Partly sunny. Highs 23 to 29. Southwest winds up to 5 mph. .FRIDAY NIGHT THROUGH SATURDAY NIGHT...Partly cloudy. Lows around 2. Highs in the mid 20s. .SUNDAY AND SUNDAY NIGHT...Mostly cloudy. Highs in the lower 20s. Lows around 5. .MONDAY...Not as cold. Partly sunny. Highs in the mid 30s. .MONDAY NIGHT...Mostly cloudy. Slight chance of snow in the evening, then chance of snow after midnight. Lows around 11. Chance of snow 40 percent. .TUESDAY...Partly sunny with a 20 percent chance of snow. Highs in the mid 30s. $$ MTZ310-182300- Western and Central Chouteau County- Including the cities of Floweree, Carter, and Fort Benton 656 AM MST Wed Feb 18 2026 ...COLD WEATHER ADVISORY NOW IN EFFECT UNTIL NOON MST THURSDAY... .REST OF TODAY...Much colder. Mostly cloudy. Slight chance of snow early in the morning, then chance of snow in the late morning and afternoon. Highs around 4. Northwest winds 10 to 15 mph with gusts to around 30 mph. Chance of snow 50 percent. .TONIGHT...Mostly cloudy. Chance of snow in the evening, then slight chance of snow after midnight. Lows around 9 below. Northwest winds 5 to 15 mph. Chance of snow 50 percent. .THURSDAY...Partly sunny. Chance of snow in the morning, then slight chance of snow in the afternoon. Highs around 13. Northwest winds up to 10 mph shifting to the northeast in the afternoon. Chance of snow 30 percent. .THURSDAY NIGHT...Mostly clear. Lows 1 below to 7 below zero. East winds up to 5 mph. .FRIDAY...Not as cold. Partly sunny. A 20 percent chance of snow in the afternoon. Highs in the mid 20s. South winds up to 5 mph shifting to the west in the afternoon. .FRIDAY NIGHT THROUGH SATURDAY NIGHT...Partly cloudy. Lows zero to 8 above. Highs in the mid 20s. .SUNDAY AND SUNDAY NIGHT...Mostly cloudy. Highs in the upper 20s. Lows 6 to 12. .MONDAY...Not as cold. Partly sunny. Highs in the upper 30s. .MONDAY NIGHT...Mostly cloudy. Slight chance of rain and snow in the evening, then chance of snow after midnight. Lows 12 to 18. Chance of precipitation 40 percent. .TUESDAY...Partly sunny. Chance of snow in the morning, then slight chance of snow in the afternoon. Highs in the mid 30s. Chance of snow 40 percent. $$ MTZ311-182300- Bears Paw Mountains and Southern Blaine- Including the city of Rocky Boy 656 AM MST Wed Feb 18 2026 ...COLD WEATHER ADVISORY NOW IN EFFECT UNTIL NOON MST THURSDAY... .REST OF TODAY...Much colder. Partly sunny. A 20 percent chance of snow in the late morning and afternoon. Highs 3 to 11. Northwest winds 10 to 20 mph with gusts to around 40 mph. .TONIGHT...Cloudy. Chance of snow in the evening, then slight chance of snow after midnight. Lows around 6 below. Northwest winds 5 to 15 mph with gusts to around 30 mph. Chance of snow 50 percent. .THURSDAY...Mostly cloudy with a 50 percent chance of snow. Highs around 12. Northwest winds up to 10 mph. .THURSDAY NIGHT...Partly cloudy. Lows near zero. Southeast winds up to 5 mph. .FRIDAY...Not as cold. Mostly sunny. Highs in the mid 20s. Southeast winds up to 5 mph shifting to the south in the afternoon. .FRIDAY NIGHT THROUGH SATURDAY NIGHT...Partly cloudy. Lows around 6. Highs in the mid 20s. .SUNDAY AND SUNDAY NIGHT...Mostly cloudy. Highs in the mid 20s. Lows around 11. .MONDAY...Not as cold. Mostly sunny. Highs in the upper 30s. .MONDAY NIGHT...Partly cloudy in the evening then becoming mostly cloudy. A 20 percent chance of snow. Lows around 17. .TUESDAY...Partly sunny. Chance of snow in the morning, then slight chance of snow in the afternoon. Highs in the mid 30s. Chance of snow 40 percent. $$ MTZ312-182300- Cascade County below 5000ft- Including the city of Great Falls 656 AM MST Wed Feb 18 2026 ...COLD WEATHER ADVISORY NOW IN EFFECT UNTIL NOON MST THURSDAY... .REST OF TODAY...Much colder. Mostly cloudy with a 50 percent chance of snow. Highs around 1. North winds 5 to 15 mph. .TONIGHT...Mostly cloudy. Chance of snow in the evening, then slight chance of snow after midnight. Near steady temperature around 4 below. North winds up to 10 mph. Chance of snow 50 percent. .THURSDAY...Not as cold. Mostly cloudy in the morning then clearing. A 20 percent chance of snow. Highs 13 to 19. North winds up to 5 mph shifting to the northeast in the afternoon. .THURSDAY NIGHT...Mostly clear. Lows 4 below to 4 above zero. East winds up to 5 mph shifting to the south after midnight. .FRIDAY...Not as cold. Partly sunny. A 20 percent chance of snow in the afternoon. Highs in the lower 30s. Southwest winds up to 10 mph. .FRIDAY NIGHT THROUGH SATURDAY NIGHT...Partly cloudy. Lows 6 to 12. Highs in the upper 20s. .SUNDAY AND SUNDAY NIGHT...Mostly cloudy. Highs in the mid 20s. Lows 8 to 16. .MONDAY...Not as cold. Mostly sunny. Highs in the lower 40s. .MONDAY NIGHT...Mostly cloudy. Slight chance of rain and snow in the evening, then chance of snow after midnight. Lows 17 to 23. Chance of precipitation 50 percent. .TUESDAY...Partly sunny. Chance of snow in the morning, then slight chance of snow in the afternoon. Highs around 40. Chance of snow 50 percent. && TEMPERATURE / PRECIPITATION Great Falls Arpt 1 -8 14 / 50 40 20 $$ MTZ313-182300- Judith Basin County and Judith Gap- Including the cities of Raynesford, Geyser, Stanford, Windham, Benchland, Hobson, and Moccasin 656 AM MST Wed Feb 18 2026 .REST OF TODAY...Much colder. Mostly cloudy. Slight chance of snow in the morning, then chance of snow in the afternoon. Highs around 5. Northwest winds 5 to 15 mph. Chance of snow 50 percent. .TONIGHT...Cloudy with a 50 percent chance of snow. Near steady temperature around 3 below. Northwest winds up to 15 mph. .THURSDAY...Not as cold. Mostly cloudy. Chance of snow in the morning, then slight chance of snow in the afternoon. Highs around 17. North winds up to 5 mph shifting to the east in the afternoon. Chance of snow 50 percent. .THURSDAY NIGHT...Partly cloudy. Lows around 3. Southeast winds up to 5 mph shifting to the south after midnight. .FRIDAY...Not as cold. Partly sunny. A 20 percent chance of snow in the afternoon. Highs around 30. Southwest winds up to 5 mph shifting to the west in the afternoon. .FRIDAY NIGHT...Mostly cloudy with a 20 percent chance of snow in the evening, then partly cloudy after midnight. Lows around 10. .SATURDAY AND SATURDAY NIGHT...Partly cloudy. Highs in the lower 30s. Lows around 8. .SUNDAY AND SUNDAY NIGHT...Mostly cloudy. Highs in the lower 30s. Lows around 16. .MONDAY...Not as cool. Mostly sunny. A 20 percent chance of snow in the afternoon. Highs in the upper 40s. .MONDAY NIGHT...Partly cloudy with slight chance of rain and snow in the evening, then mostly cloudy with chance of snow after midnight. Lows in the lower 20s. Chance of precipitation 50 percent. .TUESDAY...Partly sunny with a 50 percent chance of snow. Highs around 40. $$ MTZ314-182300- Fergus County below 4500ft- Including the cities of Hilger and Lewistown 656 AM MST Wed Feb 18 2026 .REST OF TODAY...Breezy. Much colder. Mostly cloudy. Slight chance of snow early in the afternoon. Chance of snow late in the afternoon. Highs 5 to 13. Northwest winds 10 to 25 mph. Gusts up to 45 mph decreasing to 35 mph in the afternoon. Chance of snow 50 percent. .TONIGHT...Cloudy with a 50 percent chance of snow. Lows 1 below to 7 below zero. Northwest winds 5 to 15 mph with gusts to around 30 mph. .THURSDAY...Mostly cloudy. Chance of snow in the morning, then slight chance of snow in the afternoon. Highs around 15. Northwest winds up to 10 mph. Gusts up to 25 mph in the morning. Chance of snow 50 percent. .THURSDAY NIGHT...Partly cloudy. Lows around 1. Southeast winds up to 10 mph. .FRIDAY...Not as cold. Mostly sunny. Highs in the upper 20s. South winds up to 5 mph shifting to the north in the afternoon. .FRIDAY NIGHT...Mostly cloudy in the evening then becoming partly cloudy. Lows around 9. .SATURDAY AND SATURDAY NIGHT...Partly cloudy. Highs around 30. Lows around 7. .SUNDAY AND SUNDAY NIGHT...Mostly cloudy. Highs in the upper 20s. Lows around 13. .MONDAY...Not as cold. Mostly sunny. Highs in the mid 40s. .MONDAY NIGHT...Partly cloudy with a 20 percent chance of rain and snow. Lows in the lower 20s. .TUESDAY...Partly sunny with a 20 percent chance of snow. Highs in the upper 30s. && TEMPERATURE / PRECIPITATION Lewistown 6 -9 17 / 30 60 40 $$ MTZ315-182300- Upper Blackfoot and MacDonald Pass- Including the cities of Marysville, Lincoln, Flesher Pass, and MacDonald Pass 656 AM MST Wed Feb 18 2026 ...COLD WEATHER ADVISORY NOW IN EFFECT UNTIL NOON MST THURSDAY... .REST OF TODAY...Much colder. Mostly cloudy. Chance of snow early in the morning, then snow likely late in the morning. Chance of snow in the afternoon. Snow accumulation of 1 to 2 inches. Highs 1 below to 5 above zero. Northeast winds 5 to 15 mph with gusts to around 30 mph. Chance of snow 70 percent. .TONIGHT...Mostly cloudy with a 50 percent chance of snow. Lows around 7 below. Northeast winds up to 10 mph with gusts to around 25 mph. .THURSDAY...Not as cold. Partly sunny. Slight chance of snow in the morning, then chance of snow in the afternoon. Highs 17 to 25. South winds up to 5 mph. Gusts up to 20 mph in the afternoon. Chance of snow 40 percent. .THURSDAY NIGHT...Not as cold. Partly cloudy. A 20 percent chance of snow in the evening. Lows around 7. Southwest winds up to 5 mph. Gusts up to 20 mph in the evening. .FRIDAY...Partly sunny. Slight chance of snow in the morning, then chance of snow in the afternoon. Highs 20 to 28. West winds up to 15 mph. Gusts up to 30 mph in the afternoon. Chance of snow 50 percent. .FRIDAY NIGHT THROUGH SATURDAY NIGHT...Partly cloudy with a 20 percent chance of snow. Lows around 9. Highs 24 to 32. .SUNDAY...Partly sunny with a 20 percent chance of snow. Highs 24 to 32. .SUNDAY NIGHT...Mostly cloudy in the evening then becoming partly cloudy. A 20 percent chance of snow. Lows around 17. .MONDAY...Not as cold. Partly sunny. Slight chance of snow in the morning, then chance of snow in the afternoon. Highs 36 to 44. Chance of snow 50 percent. .MONDAY NIGHT AND TUESDAY...Snow likely. Light snow accumulations. Lows in the mid 20s. Highs 31 to 39. Chance of snow 70 percent. $$ MTZ316-182300- Gates of the Mountains- Including the cities of Canyon Creek, Wolf Creek, and Craig 656 AM MST Wed Feb 18 2026 ...COLD WEATHER ADVISORY NOW IN EFFECT UNTIL NOON MST THURSDAY... .REST OF TODAY...Much colder. Chance of snow in the morning, then snow likely in the afternoon. Snow accumulation of 1 to 2 inches. Highs 1 below to 5 above zero. North winds 10 to 15 mph with gusts to around 30 mph. Chance of snow 70 percent. .TONIGHT...Mostly cloudy. Chance of snow in the evening, then slight chance of snow after midnight. Lows around 8 below. North winds up to 10 mph. Gusts up to 25 mph in the evening. Chance of snow 50 percent. .THURSDAY...Not as cold. Mostly sunny with a 20 percent chance of snow. Highs 16 to 24. East winds up to 5 mph shifting to the southeast in the afternoon. .THURSDAY NIGHT...Not as cold. Partly cloudy. Lows around 6. Southeast winds up to 5 mph shifting to the south after midnight. .FRIDAY...Not as cold. Partly sunny. A 20 percent chance of snow in the afternoon. Highs 26 to 32. Southwest winds up to 10 mph. Gusts up to 25 mph in the afternoon. .FRIDAY NIGHT...Partly cloudy. A 20 percent chance of snow in the evening. Lows around 11. .SATURDAY...Mostly sunny. Highs 27 to 33. .SATURDAY NIGHT...Partly cloudy. A 20 percent chance of snow after midnight. Lows around 9. .SUNDAY...Partly sunny. Highs 24 to 32. .SUNDAY NIGHT...Mostly cloudy. A 20 percent chance of snow in the evening. Lows around 15. .MONDAY...Not as cool. Mostly sunny. A 20 percent chance of rain and snow in the afternoon. Highs 39 to 45. .MONDAY NIGHT...Not as cold. Mostly cloudy. Chance of snow and rain in the evening, then chance of snow after midnight. Lows in the mid 20s. Chance of precipitation 50 percent. .TUESDAY...Partly sunny with a 50 percent chance of snow. Highs 37 to 43. $$ MTZ317-182300- Little Belt and Highwood Mountains- Including the cities of Monarch, Neihart, and Kings Hill Pass 656 AM MST Wed Feb 18 2026 .REST OF TODAY...Much colder. Mostly cloudy. Chance of snow in the morning, then snow likely in the afternoon. Snow accumulation up to 2 inches. Highs 1 below to 9 above zero. North winds 5 to 15 mph with gusts to around 30 mph. Chance of snow 70 percent. .TONIGHT...Mostly cloudy. Snow likely in the evening, then chance of snow after midnight. Snow accumulation up to 2 inches. Total snow accumulation up to 4 inches. Near steady temperature around 4 below. Northwest winds up to 10 mph. Gusts up to 30 mph decreasing to 20 mph after midnight. Chance of snow 70 percent. .THURSDAY...Not as cold. Partly sunny with a 50 percent chance of snow. Highs 14 to 22. Southwest winds up to 10 mph. .THURSDAY NIGHT...Not as cold. Mostly clear. A 20 percent chance of snow in the evening. Lows around 5. South winds up to 10 mph. .FRIDAY...Partly sunny. A 50 percent chance of snow in the afternoon. Highs 20 to 28. Southwest winds up to 15 mph. .FRIDAY NIGHT THROUGH SATURDAY NIGHT...Partly cloudy with a 20 percent chance of snow. Lows 6 to 12. Highs 23 to 29. .SUNDAY...Partly sunny with a 20 percent chance of snow. Highs 25 to 31. .SUNDAY NIGHT AND MONDAY...Not as cool. Partly cloudy. A 20 percent chance of snow. Lows around 17. Highs 37 to 43. .MONDAY NIGHT AND TUESDAY...Mostly cloudy. A 50 percent chance of snow. Lows in the mid 20s. Highs 31 to 39. $$ MTZ318-182300- Snowy and Judith Mountains- 656 AM MST Wed Feb 18 2026 .REST OF TODAY...Much colder. Mostly cloudy. Slight chance of snow early in the afternoon. Chance of snow late in the afternoon. Highs 5 to 11. Northwest winds 10 to 15 mph with gusts to around 45 mph. Chance of snow 50 percent. .TONIGHT...Mostly cloudy. Snow likely in the evening, then slight chance of snow after midnight. Snow accumulation of 1 to 2 inches. Near steady temperature around 2 below. Northwest winds 5 to 15 mph with gusts to around 35 mph. Chance of snow 70 percent. .THURSDAY...Mostly cloudy with a 50 percent chance of snow. Highs 10 to 16. West winds up to 10 mph with gusts to around 25 mph shifting to the southwest in the afternoon. .THURSDAY NIGHT...Partly cloudy. Lows around 2. South winds up to 10 mph. .FRIDAY...Not as cold. Mostly sunny. A 20 percent chance of snow in the afternoon. Highs 23 to 29. South winds up to 10 mph shifting to the west in the afternoon. .FRIDAY NIGHT...Mostly cloudy with a 20 percent chance of snow in the evening, then partly cloudy after midnight. Lows around 9. .SATURDAY AND SATURDAY NIGHT...Partly cloudy. Highs 24 to 30. Lows around 7. .SUNDAY AND SUNDAY NIGHT...Mostly cloudy. Highs 22 to 28. Lows around 14. .MONDAY...Not as cool. Mostly sunny. A 20 percent chance of snow in the afternoon. Highs 39 to 47. .MONDAY NIGHT AND TUESDAY...Mostly cloudy. A 50 percent chance of snow. Lows in the lower 20s. Highs 34 to 40. $$ MTZ319-182300- Helena Valley- Including the city of Helena 656 AM MST Wed Feb 18 2026 .REST OF TODAY...Much colder. Mostly cloudy. Chance of snow in the morning, then snow likely in the afternoon. Snow accumulation around 1 inch. Highs around 8. Northwest winds 10 to 15 mph. Chance of snow 70 percent. .TONIGHT...Mostly cloudy. Chance of snow in the evening, then slight chance of snow after midnight. Lows around 6 below. Northwest winds up to 10 mph. Chance of snow 50 percent. .THURSDAY...Not as cold. Partly sunny with a 20 percent chance of snow in the morning, then sunny in the afternoon. Highs in the mid 20s. Northwest winds up to 5 mph shifting to the east in the afternoon. .THURSDAY NIGHT...Not as cold. Partly cloudy. Lows around 5. Light winds. .FRIDAY...Partly sunny. A 20 percent chance of snow in the afternoon. Highs in the lower 30s. South winds up to 5 mph shifting to the west in the afternoon. .FRIDAY NIGHT THROUGH SATURDAY NIGHT...Partly cloudy. Lows around 9. Highs in the mid 30s. .SUNDAY...Partly sunny. Highs in the mid 30s. .SUNDAY NIGHT...Partly cloudy. Lows around 16. .MONDAY...Not as cool. Mostly sunny. A 20 percent chance of rain in the afternoon. Highs in the upper 40s. .MONDAY NIGHT...Mostly cloudy. Chance of rain and snow in the evening, then chance of snow after midnight. Lows in the mid 20s. Chance of precipitation 50 percent. .TUESDAY...Partly sunny with a 50 percent chance of snow. Highs in the mid 40s. && TEMPERATURE / PRECIPITATION Helena 8 -6 23 / 70 50 20 $$ MTZ320-182300- Big Belt, Bridger and Castle Mountains- Including the cities of Trident, Maudlow, Battle Ridge Pass, Bozeman Pass, and Deep Creek Pass 656 AM MST Wed Feb 18 2026 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 11 PM MST WEDNESDAY... .REST OF TODAY...Colder, cloudy. Chance of snow until late afternoon, then snow likely late in the afternoon. Snow accumulation up to 3 inches. Highs 5 to 19. North winds 10 to 15 mph with gusts to around 40 mph. Chance of snow 70 percent. .TONIGHT...Colder. Mostly cloudy. Snow likely in the evening, then slight chance of snow after midnight. Snow accumulation up to 1 inch. Total snow accumulation up to 4 inches. Lows 6 below to 2 above zero. Northwest winds up to 15 mph. Gusts up to 40 mph decreasing to 30 mph after midnight. Chance of snow 70 percent. .THURSDAY...Not as cold. Mostly cloudy with chance of snow in the morning, then mostly sunny with slight chance of snow in the afternoon. Highs 16 to 24. Southwest winds up to 10 mph with gusts to around 25 mph. Chance of snow 40 percent. .THURSDAY NIGHT...Partly cloudy. A 20 percent chance of snow in the evening. Lows around 7. South winds up to 10 mph with gusts to around 25 mph. .FRIDAY...Partly sunny. A 20 percent chance of snow in the afternoon. Highs 20 to 28. South winds up to 10 mph with gusts to around 25 mph shifting to the west with gusts to around 35 mph in the afternoon. .FRIDAY NIGHT...Mostly cloudy with a 20 percent chance of snow in the evening, then mostly clear after midnight. Lows around 9. .SATURDAY...Sunny. Highs 23 to 31. .SATURDAY NIGHT...Partly cloudy. A 20 percent chance of snow after midnight. Lows around 10. .SUNDAY...Partly sunny. Highs 24 to 34. .SUNDAY NIGHT AND MONDAY...Not as cool. Partly cloudy. A 20 percent chance of snow. Lows around 18. Highs 36 to 46. .MONDAY NIGHT AND TUESDAY...Mostly cloudy with a 50 percent chance of snow. Lows in the mid 20s. Highs 32 to 42. $$ MTZ321-182300- Meagher County Valleys- Including the cities of Martinsdale, Checkerboard, Ringling, and White Sulphur Springs 656 AM MST Wed Feb 18 2026 .REST OF TODAY...Much colder. Cloudy. Chance of snow until late afternoon, then snow likely late in the afternoon. Snow accumulation up to 2 inches. Highs 9 to 17. North winds 5 to 15 mph with gusts to around 35 mph. Chance of snow 70 percent. .TONIGHT...Mostly cloudy. Snow likely in the evening, then chance of snow after midnight. Snow accumulation up to 1 inch. Total snow accumulation up to 3 inches. Lows 5 below to 1 above zero. Northwest winds up to 10 mph. Gusts up to 30 mph in the evening. Chance of snow 70 percent. .THURSDAY...Not as cold. Mostly cloudy with chance of snow in the morning, then mostly sunny with slight chance of snow in the afternoon. Highs in the mid 20s. Southwest winds up to 10 mph. Chance of snow 40 percent. .THURSDAY NIGHT...Partly cloudy. Lows around 5. South winds up to 5 mph. .FRIDAY...Partly sunny. A 20 percent chance of snow in the afternoon. Highs in the upper 20s. Southwest winds up to 10 mph. Gusts up to 25 mph in the afternoon. .FRIDAY NIGHT...Partly cloudy. A 20 percent chance of snow in the evening. Lows around 8. .SATURDAY...Sunny. Highs in the lower 30s. .SATURDAY NIGHT...Partly cloudy. A 20 percent chance of snow after midnight. Lows around 9. .SUNDAY...Partly sunny. Highs 29 to 35. .SUNDAY NIGHT...Partly cloudy. Lows around 17. .MONDAY...Not as cool. Mostly sunny. A 20 percent chance of snow in the afternoon. Highs in the mid 40s. .MONDAY NIGHT...Mostly cloudy. Chance of snow and rain in the evening, then chance of snow after midnight. Lows in the mid 20s. Chance of precipitation 50 percent. .TUESDAY...Partly sunny with a 50 percent chance of snow. Highs around 40. $$ MTZ322-182300- Elkhorn and Boulder Mountains- Including the cities of Montana City, Clancy, Boulder, Corbin, Wickes, Elk Park Pass, and Homestake Pass 656 AM MST Wed Feb 18 2026 .REST OF TODAY...Colder. Mostly cloudy with a 50 percent chance of snow. Highs 7 to 15. North winds 5 to 15 mph with gusts to around 45 mph. .TONIGHT...Mostly cloudy. Chance of snow in the evening, then slight chance of snow after midnight. Lows 5 below to 1 above zero. North winds 5 to 10 mph with gusts to around 40 mph shifting to the west with gusts to around 30 mph after midnight. Chance of snow 50 percent. .THURSDAY...Not as cold. Mostly sunny with a 20 percent chance of snow. Highs 17 to 25. South winds up to 10 mph. .THURSDAY NIGHT...Partly cloudy. A 20 percent chance of snow in the evening. Lows 4 to 10. Southeast winds up to 5 mph with gusts to around 20 mph shifting to the southwest after midnight. .FRIDAY...Partly sunny. A 20 percent chance of snow in the afternoon. Highs 20 to 28. West winds up to 10 mph with gusts to around 25 mph. .FRIDAY NIGHT...Partly cloudy. A 20 percent chance of snow in the evening. Lows 6 to 12. .SATURDAY...Sunny. Highs 24 to 32. .SATURDAY NIGHT...Partly cloudy. Lows 7 to 13. .SUNDAY...Partly sunny. Highs 27 to 35. .SUNDAY NIGHT...Partly cloudy. Lows around 19. .MONDAY...Not as cold. Mostly sunny with a 20 percent chance of snow. Highs 36 to 44. .MONDAY NIGHT AND TUESDAY...Mostly cloudy. A 50 percent chance of snow. Lows 21 to 27. Highs 33 to 41. $$ MTZ323-182300- Canyon Ferry Area- Including the cities of Toston, Townsend, and Winston 656 AM MST Wed Feb 18 2026 .REST OF TODAY...Breezy. Much colder. Cloudy with a 50 percent chance of snow. Highs 10 to 16. North winds 15 to 25 mph. .TONIGHT...Mostly cloudy. Chance of snow in the evening, then slight chance of snow after midnight. Lows near zero. North winds 5 to 20 mph. Gusts up to 35 mph in the evening. Chance of snow 50 percent. .THURSDAY...Not as cold. Mostly sunny. A 20 percent chance of snow in the morning. Highs in the mid 20s. North winds up to 5 mph shifting to the south in the afternoon. .THURSDAY NIGHT...Partly cloudy. Lows around 10. South winds up to 5 mph. .FRIDAY...Partly sunny. A 20 percent chance of snow in the afternoon. Highs in the lower 30s. South winds up to 10 mph. .FRIDAY NIGHT...Partly cloudy. A 20 percent chance of snow in the evening. Lows around 12. .SATURDAY...Sunny. Highs in the mid 30s. .SATURDAY NIGHT...Partly cloudy. Lows around 13. .SUNDAY...Partly sunny. Highs in the upper 30s. .SUNDAY NIGHT AND MONDAY...Not as cool. Partly cloudy. Lows in the lower 20s. Highs in the upper 40s. .MONDAY NIGHT...Partly cloudy with slight chance of rain and snow in the evening, then mostly cloudy with chance of snow and rain after midnight. Lows in the upper 20s. Chance of precipitation 50 percent. .TUESDAY...Partly sunny. Chance of snow in the morning, then slight chance of rain and snow in the afternoon. Highs in the mid 40s. Chance of precipitation 50 percent. $$ MTZ324-182300- Missouri Headwaters- Including the cities of Harrison, Three Forks, Willow Creek, Pony, and Whitehall 656 AM MST Wed Feb 18 2026 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 11 PM MST WEDNESDAY... .REST OF TODAY...Much colder. Cloudy with a 50 percent chance of snow. Highs around 17. North winds 5 to 15 mph with gusts to around 35 mph. .TONIGHT...Colder. Mostly cloudy. Chance of snow in the evening, then slight chance of snow after midnight. Lows near zero. Northeast winds up to 10 mph. Gusts up to 30 mph in the evening. Chance of snow 50 percent. .THURSDAY...Mostly sunny. Highs in the upper 20s. East winds up to 5 mph. .THURSDAY NIGHT...Partly cloudy. Lows around 9. Southeast winds up to 5 mph shifting to the southwest after midnight. .FRIDAY...Partly sunny. Highs in the lower 30s. Southwest winds up to 10 mph. .FRIDAY NIGHT...Partly cloudy. Lows around 10. .SATURDAY...Sunny. Highs in the mid 30s. .SATURDAY NIGHT...Partly cloudy. Lows around 13. .SUNDAY...Partly sunny. Highs 35 to 41. .SUNDAY NIGHT AND MONDAY...Warmer. Partly cloudy. Lows in the lower 20s. Highs around 50. .MONDAY NIGHT AND TUESDAY...Mostly cloudy. A 50 percent chance of snow and rain. Lows in the upper 20s. Highs in the mid 40s. $$ MTZ325-182300- Madison River Valley- Including the cities of Cameron, Ennis, Jeffers, McAllister, and Norris 656 AM MST Wed Feb 18 2026 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 11 PM MST WEDNESDAY... .REST OF TODAY...Colder. Chance of snow in the morning, then snow likely in the afternoon. Snow accumulation of 1 to 3 inches. Highs 18 to 24. North winds 5 to 15 mph. Chance of snow 70 percent. .TONIGHT...Colder. Mostly cloudy. Snow likely in the evening, then slight chance of snow after midnight. Snow accumulation up to 1 inch. Total snow accumulation 1 to 4 inches. Lows around 5. North winds up to 10 mph. Chance of snow 70 percent. .THURSDAY...Partly sunny. Slight chance of snow in the morning, then chance of snow in the afternoon. Highs in the upper 20s. South winds up to 5 mph shifting to the west in the afternoon. Chance of snow 50 percent. .THURSDAY NIGHT...Partly cloudy. A 20 percent chance of snow in the evening. Lows around 9. South winds up to 10 mph. .FRIDAY...Mostly sunny. A 20 percent chance of snow in the afternoon. Highs around 30. South winds up to 10 mph shifting to the west in the afternoon. .FRIDAY NIGHT...Partly cloudy. Lows around 10. .SATURDAY...Sunny. Highs in the mid 30s. .SATURDAY NIGHT...Partly cloudy. Lows around 15. .SUNDAY...Partly sunny. Highs in the lower 40s. .SUNDAY NIGHT...Partly cloudy. Lows in the mid 20s. .MONDAY...Breezy. Mostly sunny. A 20 percent chance of rain and snow in the afternoon. Highs 44 to 50. .MONDAY NIGHT...Breezy. Mostly cloudy. Chance of snow and rain in the evening, then chance of snow after midnight. Lows in the upper 20s. Chance of precipitation 50 percent. .TUESDAY...Breezy. Partly sunny with a 50 percent chance of snow. Highs in the lower 40s. $$ MTZ326-182300- Gallatin Valley- Including the cities of Bozeman and Gallatin Gateway 656 AM MST Wed Feb 18 2026 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 11 PM MST WEDNESDAY... .REST OF TODAY...Much colder. Cloudy. Chance of snow until late afternoon, then snow likely late in the afternoon. Snow accumulation of 1 to 2 inches. Highs around 20. Northwest winds 5 to 10 mph with gusts to around 30 mph. Chance of snow 70 percent. .TONIGHT...Colder. Mostly cloudy. Snow likely in the evening, then slight chance of snow after midnight. Snow accumulation up to 1 inch. Total snow accumulation 1 to 3 inches. Lows near zero. West winds up to 10 mph. Gusts up to 25 mph in the evening. Chance of snow 70 percent. .THURSDAY...Mostly cloudy in the morning then becoming mostly sunny. A 20 percent chance of snow. Highs in the upper 20s. Southwest winds up to 5 mph shifting to the northwest in the afternoon. .THURSDAY NIGHT...Partly cloudy. Lows around 8. Light winds becoming southeast up to 5 mph after midnight. .FRIDAY...Partly sunny. A 20 percent chance of snow in the afternoon. Highs in the lower 30s. South winds up to 5 mph shifting to the west in the afternoon. .FRIDAY NIGHT...Mostly cloudy in the evening then clearing. Lows around 10. .SATURDAY...Sunny. Highs in the mid 30s. .SATURDAY NIGHT...Partly cloudy. Lows around 12. .SUNDAY...Partly sunny. Highs in the upper 30s. .SUNDAY NIGHT...Partly cloudy. Lows in the lower 20s. .MONDAY...Not as cool. Mostly sunny. A 20 percent chance of rain in the afternoon. Highs around 50. .MONDAY NIGHT AND TUESDAY...Mostly cloudy. A 50 percent chance of rain and snow. Lows in the upper 20s. Highs in the mid 40s. && TEMPERATURE / PRECIPITATION Bozeman Airport 20 -2 25 / 60 70 20 Bozeman MSU 20 1 27 / 70 70 20 $$ MTZ330-182300- Gallatin and Madison County Mountains and Centennial Mountains- Including the cities of Big Sky, West Yellowstone, Targhee Pass, and Raynolds Pass 656 AM MST Wed Feb 18 2026 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 11 PM MST WEDNESDAY... .REST OF TODAY...Mostly cloudy. Chance of snow in the morning, then snow likely early in the afternoon. Snow late in the afternoon. Snow accumulation up to 5 inches. Highs 17 to 25. Southeast winds 5 to 10 mph shifting to the north 5 to 15 mph in the afternoon. Gusts up to 30 mph. Chance of snow 90 percent. .TONIGHT...Mostly cloudy. Snow likely in the evening, then chance of snow after midnight. Snow accumulation up to 2 inches. Total snow accumulation up to 10 inches. Lows around 2. Northwest winds up to 10 mph with gusts to around 30 mph. Chance of snow 70 percent. .THURSDAY...Partly sunny with a 50 percent chance of snow. Highs 14 to 22. Southwest winds up to 10 mph. Gusts up to 20 mph increasing to 30 mph in the afternoon. .THURSDAY NIGHT...Mostly cloudy with a 20 percent chance of snow in the evening, then partly cloudy after midnight. Lows 1 below to 7 above zero. South winds up to 10 mph with gusts to around 30 mph. .FRIDAY...Partly sunny. A 40 percent chance of snow in the afternoon. Highs 15 to 25. South winds up to 10 mph shifting to the west with gusts to around 30 mph in the afternoon. .FRIDAY NIGHT...Mostly cloudy with a 20 percent chance of snow in the evening, then mostly clear after midnight. Lows zero to 8 above. .SATURDAY...Sunny. Highs 18 to 28. .SATURDAY NIGHT...Partly cloudy. Lows 5 to 13. .SUNDAY...Not as cold. Partly sunny. Highs 28 to 36. .SUNDAY NIGHT...Partly cloudy. Lows 15 to 23. .MONDAY...Mostly sunny. Slight chance of snow in the morning, then chance of snow in the afternoon. Highs 30 to 42. Chance of snow 50 percent. .MONDAY NIGHT...Mostly cloudy with a 50 percent chance of snow. Lows 18 to 26. .TUESDAY...Snow likely. Moderate snow accumulations. Highs 27 to 37. Chance of snow 70 percent. && TEMPERATURE / PRECIPITATION West Yellowstone 28 -2 22 / 80 80 60 $$ MTZ327-182300- Northwest Beaverhead County- Including the cities of Dewey, Wisdom, Wise River, Big Hole Pass, and Chief Joseph Pass 656 AM MST Wed Feb 18 2026 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 11 PM MST WEDNESDAY... .REST OF TODAY...Mostly cloudy. Chance of snow until late afternoon, then snow likely late in the afternoon. Snow accumulation up to 5 inches. Total snow accumulation up to 6 inches. Highs 19 to 25. Northwest winds up to 15 mph. Gusts up to 25 mph increasing to 35 mph in the afternoon. Chance of snow 70 percent. .TONIGHT...Colder. Mostly cloudy with a 50 percent chance of snow. Lows 1 to 7. Northwest winds 5 to 10 mph with gusts to around 35 mph shifting to the west with gusts to around 25 mph after midnight. .THURSDAY...Partly sunny. Slight chance of snow in the morning, then chance of snow in the afternoon. Highs 17 to 25. Southwest winds up to 10 mph with gusts to around 25 mph. Chance of snow 50 percent. .THURSDAY NIGHT...Partly cloudy. A 20 percent chance of snow in the evening. Lows zero to 6 above. South winds up to 10 mph with gusts to around 25 mph. .FRIDAY...Partly sunny. A 50 percent chance of snow in the afternoon. Highs 17 to 25. West winds up to 10 mph. Gusts up to 20 mph increasing to 30 mph in the afternoon. .FRIDAY NIGHT...Partly cloudy. A 20 percent chance of snow in the evening. Lows zero to 6 above. .SATURDAY...Sunny. Highs 22 to 30. .SATURDAY NIGHT...Partly cloudy. Lows around 9. .SUNDAY...Not as cold. Partly sunny. Highs 29 to 37. .SUNDAY NIGHT...Partly cloudy. A 20 percent chance of snow after midnight. Lows around 17. .MONDAY...Partly sunny. Slight chance of snow in the morning, then chance of snow in the afternoon. Highs 33 to 41. Chance of snow 50 percent. .MONDAY NIGHT AND TUESDAY...Snow likely. Moderate snow accumulations. Lows around 20. Highs 28 to 36. Chance of snow 70 percent. $$ MTZ328-182300- Beaverhead and Western Madison below 6000ft- Including the cities of Bannack, Dillon, Glen, and Waterloo 656 AM MST Wed Feb 18 2026 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 11 PM MST WEDNESDAY... .REST OF TODAY...Colder. Mostly cloudy. Chance of snow until late afternoon, then snow likely late in the afternoon. Snow accumulation up to 2 inches. Highs 22 to 28. Northeast winds 5 to 15 mph with gusts to around 30 mph. Chance of snow 70 percent. .TONIGHT...Colder. Mostly cloudy. Chance of snow in the evening, then slight chance of snow after midnight. Lows around 6. Northeast winds up to 10 mph. Gusts up to 30 mph in the evening. Chance of snow 50 percent. .THURSDAY...Mostly sunny with a 20 percent chance of snow. Highs 24 to 30. South winds up to 10 mph. .THURSDAY NIGHT...Partly cloudy. Lows around 7. South winds up to 10 mph. .FRIDAY...Mostly sunny. Highs 26 to 32. Southwest winds up to 10 mph with gusts to around 25 mph. .FRIDAY NIGHT AND SATURDAY...Mostly clear. Lows around 7. Highs 29 to 35. .SATURDAY NIGHT...Partly cloudy. Lows around 13. .SUNDAY...Partly sunny. Highs 36 to 42. .SUNDAY NIGHT...Partly cloudy. Lows around 20. .MONDAY...Mostly sunny. A 20 percent chance of snow in the afternoon. Highs 42 to 48. .MONDAY NIGHT...Mostly cloudy. Chance of snow and slight chance of rain in the evening, then chance of snow after midnight. Lows in the mid 20s. Chance of precipitation 50 percent. .TUESDAY...Partly sunny with a 50 percent chance of snow. Highs 39 to 45. && TEMPERATURE / PRECIPITATION Dillon 26 6 30 / 60 60 10 $$ MTZ329-182300- Ruby Mountains and Southern Beaverhead Mountains- Including the city of Monida Pass 656 AM MST Wed Feb 18 2026 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 11 PM MST WEDNESDAY... .REST OF TODAY...Mostly cloudy. Chance of snow in the morning, then snow likely in the afternoon. Snow accumulation up to 3 inches. Total snow accumulation up to 5 inches. Highs 20 to 26. Southwest winds 5 to 10 mph shifting to the north 10 to 15 mph in the afternoon. Gusts up to 30 mph. Chance of snow 70 percent. .TONIGHT...Mostly cloudy. Chance of snow in the evening, then slight chance of snow after midnight. Lows around 6. Northwest winds up to 15 mph with gusts to around 30 mph. Chance of snow 50 percent. .THURSDAY...Partly sunny. Slight chance of snow in the morning, then chance of snow in the afternoon. Highs 16 to 24. Southwest winds up to 15 mph. Chance of snow 50 percent. .THURSDAY NIGHT...Mostly cloudy with a 20 percent chance of snow in the evening, then partly cloudy after midnight. Lows zero to 6 above. South winds up to 15 mph. Gusts up to 30 mph in the evening. .FRIDAY...Mostly sunny. A 20 percent chance of snow in the afternoon. Highs 18 to 24. Southwest winds up to 10 mph shifting to the west in the afternoon. .FRIDAY NIGHT AND SATURDAY...Mostly clear. Lows 1 to 7. Highs 19 to 27. .SATURDAY NIGHT...Partly cloudy. Lows around 10. .SUNDAY...Not as cold. Partly sunny. Highs 27 to 35. .SUNDAY NIGHT...Partly cloudy. Lows 16 to 22. .MONDAY...Breezy. Mostly sunny. Slight chance of snow in the morning, then chance of snow in the afternoon. Highs 32 to 40. Chance of snow 50 percent. .MONDAY NIGHT AND TUESDAY...Mostly cloudy. A 50 percent chance of snow. Lows 18 to 24. Highs 30 to 38. $$