FPUS65 KTFX 230659 AFPTFX Central and Southwest Montana Area Forecast National Weather Service Great Falls MT 1258 AM MDT Thu Apr 23 2026 MTZ301>314-316>318-241200- Central Montana- National Weather Service Great Falls MT 1258 AM MDT Thu Apr 23 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING FOR East Glacier Park Region...Northern High Plains...Snowy and Judith Mountains... ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING FOR Eastern Toole and Liberty...Hill County...Northern Blaine County...Western and Central Chouteau County...Bears Paw Mountains and Southern Blaine...Fergus County below 4500ft... ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MDT FRIDAY FOR Southern Rocky Mountain Front...Gates of the Mountains... ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MDT TODAY FOR Cascade County below 5000ft... ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING FOR Judith Basin County and Judith Gap...Little Belt and Highwood Mountains... .REST OF TONIGHT...Mostly cloudy. Patchy blowing snow. Chance of rain and snow after midnight. Chance of snow. Highs 35 to 45... 25 to 35 in the mountains. Lows 20 to 35...15 to 30 in the mountains. Northwest winds 20 to 30 mph with gusts to 50 mph. .FRIDAY...Mostly cloudy. Chance of snow in the morning, then snow showers likely in the afternoon. Highs 30 to 40...20 to 30 in the mountains. Northwest winds 20 to 30 mph with gusts to 45 mph. .FRIDAY NIGHT...Mostly cloudy. Chance of snow showers in the evening, then chance of snow after midnight. Lows 20 to 25... 10 to 20 in the mountains. Northwest winds 20 to 25 mph with gusts to 40 mph in the evening. .SATURDAY...Mostly cloudy. Chance of snow. Highs 35 to 40. .SUNDAY...Mostly cloudy. Slight chance of snow. Lows 15 to 20. Highs 35 to 40. .MONDAY...Mostly cloudy. Slight chance of snow. Lows 20 to 25. Highs 45 to 55. .TUESDAY...Partly cloudy. Slight chance of rain. Lows 25 to 30. Highs 50 to 60. $$ MTZ315-319>330-241200- Southwest Montana- National Weather Service Great Falls MT 1258 AM MDT Thu Apr 23 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MDT FRIDAY FOR Upper Blackfoot and MacDonald Pass...Helena Valley...Big Belt, Bridger and Castle Mountains...Elkhorn and Boulder Mountains...Northwest Beaverhead County...Ruby Mountains and Southern Beaverhead Mountains... ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING TO NOON MDT FRIDAY FOR Canyon Ferry Area...Missouri Headwaters...Madison River Valley...Gallatin Valley...Beaverhead and Western Madison below 6000ft... ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MDT FRIDAY FOR Gallatin and Madison County Mountains and Centennial Mountains... .REST OF TONIGHT...Patchy blowing snow. Snow and rain after midnight. Snow showers likely and slight chance of thunderstorms, then chance of snow. Highs 35 to 45...25 to 35 in the mountains. Lows 20 to 35...15 to 30 in the mountains. West winds around 20 mph with gusts to 40 mph. .FRIDAY...Mostly cloudy. Snow likely in the morning, then chance of snow showers in the afternoon. Highs 30 to 40...20 to 30 in the mountains. Northwest winds around 20 mph in the afternoon. .FRIDAY NIGHT...Partly cloudy. Colder. Slight chance of snow showers. Lows 15 to 20...10 to 15 in the mountains. .SATURDAY...Partly cloudy. Slight chance of snow. Highs 35 to 45. .SUNDAY...Mostly cloudy. Chance of snow. Lows 15 to 20. Highs 35 to 45. .MONDAY...Mostly cloudy. Chance of snow. Lows 20 to 25. Highs 40 to 50. .TUESDAY...Partly cloudy. Slight chance of rain and snow. Lows 25 to 30. Highs 45 to 55. $$