Expires:202512261100;;240309 FPUS65 KTFX 260630 SFPMT State Forecast For Montana National Weather Service Great Falls MT 1130 PM MST Thu Dec 25 2025 MTZ315-319>330-261100- Southwest Montana- National Weather Service Great Falls MT 1130 PM MST Thu Dec 25 2025 ...HIGH WIND WARNING IN EFFECT FROM 10 AM TO 6 PM MST FRIDAY FOR Madison River Valley... ...WINTER WEATHER ADVISORY IN EFFECT FROM 2 AM TO 6 PM MST FRIDAY FOR Gallatin and Madison County Mountains and Centennial Mountains... .REST OF TONIGHT...Mostly cloudy. Chance of rain and snow showers through the night. Slight chance of light freezing rain after midnight. Lows 30 to 35...25 to 30 in the mountains. South winds around 20 mph late in the evening. .FRIDAY...Mostly cloudy in the morning then becoming partly cloudy. Chance of snow showers. Highs 40 to 50...30 to 40 in the mountains. Southwest winds 20 to 30 mph with gusts to 45 mph. .FRIDAY NIGHT...Increasing clouds. Colder. Chance of snow. Lows 15 to 25...10 to 20 in the mountains. Southwest winds 20 to 30 mph with gusts to 35 mph. .SATURDAY...Mostly cloudy. Chance of snow. Highs 20 to 30. West winds around 20 mph with gusts to 35 mph. .SUNDAY...Mostly clear. Lows 5 below to 15 above zero. Highs 15 to 25. .MONDAY...Mostly clear. Lows 10 to 25. Highs 25 to 35. .TUESDAY...Mostly cloudy. Lows 15 to 30. Highs 30 to 40. $$