FPUS65 KTFX 122139 AFPTFX Central and Southwest Montana Area Forecast National Weather Service Great Falls MT 338 PM MDT Thu Mar 12 2026 MTZ301>314-316>318-131200- Central Montana- National Weather Service Great Falls MT 338 PM MDT Thu Mar 12 2026 ...WINTER STORM WARNING NOW IN EFFECT UNTIL 6 PM MDT SATURDAY FOR East Glacier Park Region...Southern Rocky Mountain Front... ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 6 PM MDT THIS EVENING FOR Northern High Plains...Southern High Plains... ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT SATURDAY FOR Eastern Glacier, Western Toole, and Central Pondera...Eastern Toole and Liberty...Western and Central Chouteau County...Bears Paw Mountains and Southern Blaine... ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT SATURDAY FOR Eastern Pondera and Eastern Teton... ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING FOR Cascade County below 5000ft...Judith Basin County and Judith Gap...Fergus County below 4500ft...Gates of the Mountains...Little Belt and Highwood Mountains...Snowy and Judith Mountains... .TONIGHT...Cloudy. Patchy blowing snow. Chance of snow. Lows 20 to 30...15 to 25 in the mountains. Gusts up to 40 mph in the evening. .FRIDAY...Cloudy, snow. Highs 30 to 35...25 to 30 in the mountains. .FRIDAY NIGHT...Cloudy, snow. Lows 15 to 20. .SATURDAY...Cloudy, snow. Highs 20 to 30. .SUNDAY...Mostly cloudy. Chance of snow. Lows zero to 10 above. Highs 25 to 30. .MONDAY...Mostly cloudy. Chance of rain and snow. Lows 10 to 20. Highs 40 to 45. .TUESDAY...Mostly cloudy. Slight chance of rain. Lows 30 to 40. Highs 50 to 60. $$ MTZ315-319>330-131200- Southwest Montana- National Weather Service Great Falls MT 338 PM MDT Thu Mar 12 2026 ...WINTER STORM WARNING NOW IN EFFECT UNTIL 6 PM MDT SATURDAY FOR Upper Blackfoot and MacDonald Pass...Northwest Beaverhead County... ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING FOR Helena Valley...Big Belt, Bridger and Castle Mountains...Meagher County Valleys...Elkhorn and Boulder Mountains...Canyon Ferry Area...Missouri Headwaters...Madison River Valley...Gallatin Valley...Beaverhead and Western Madison below 6000ft...Ruby Mountains and Southern Beaverhead Mountains...Gallatin and Madison County Mountains and Centennial Mountains... .TONIGHT...Mostly cloudy. Patchy blowing snow. Chance of snow. Lows 30 to 40...25 to 35 in the mountains. West winds 20 to 30 mph. Gusts up to 55 mph decreasing to 40 mph after midnight. .FRIDAY...Mostly cloudy. Chance of snow and rain. Highs 45 to 55...35 to 45 in the mountains. West winds 20 to 30 mph with gusts to 50 mph. .FRIDAY NIGHT...Cloudy. Snow with rain likely. Lows 30 to 40... 25 to 35 in the mountains. West winds 20 to 25 mph with gusts to 45 mph in the evening. .SATURDAY...Cloudy, snow. Highs 35 to 45. West winds 20 to 30 mph with gusts to 55 mph. .SUNDAY...Mostly cloudy. Slight chance of snow. Lows 5 to 15. Highs 25 to 35. .MONDAY...Mostly cloudy. Chance of snow and rain. Lows 20 to 25. Highs 40 to 50. .TUESDAY...Mostly cloudy. Slight chance of rain. Lows 35 to 40. Highs 55 to 65. $$