FPUS65 KTFX 210654 AFPTFX Central and Southwest Montana Area Forecast National Weather Service Great Falls MT 1253 AM MDT Sat Mar 21 2026 MTZ301>314-316>318-221200- Central Montana- National Weather Service Great Falls MT 1253 AM MDT Sat Mar 21 2026 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 AM MDT EARLY THIS MORNING FOR Eastern Glacier, Western Toole, and Central Pondera...Southern High Plains... .REST OF TONIGHT...Mostly cloudy. Slight chance of rain after midnight. Chance of rain and snow. Highs 50 to 60...40 to 50 in the mountains. Lows 30 to 45...25 to 40 in the mountains. Southwest winds around 20 mph with gusts to 50 mph. .SUNDAY...Sunny. Highs 50 to 55...40 to 50 in the mountains. West winds 20 to 25 mph with gusts to 40 mph in the afternoon. .SUNDAY NIGHT...Increasing clouds. Lows 25 to 35...20 to 30 in the mountains. Gusts up to 35 mph in the evening. .MONDAY...Mostly cloudy. Highs 50 to 60. .TUESDAY...Mostly cloudy. Slight chance of rain and snow. Lows 30 to 35. Highs 45 to 55. .WEDNESDAY...Mostly cloudy. Chance of rain and snow. Lows 35 to 40. Highs 50 to 60. .THURSDAY...Partly cloudy. Slight chance of snow. Lows 20 to 30. Highs 40 to 50. $$ MTZ315-319>330-221200- Southwest Montana- National Weather Service Great Falls MT 1253 AM MDT Sat Mar 21 2026 .REST OF TONIGHT...Partly cloudy. Slight chance of rain in the morning. Chance of rain in the afternoon, then slight chance of rain and snow in the evening. Highs 60 to 70...50 to 60 in the mountains. Lows 30 to 45...25 to 40 in the mountains. West winds 20 to 25 mph with gusts to 50 mph. .SUNDAY...Sunny. Highs 50 to 60...40 to 50 in the mountains. Gusts up to 35 mph in the afternoon. .SUNDAY NIGHT...Partly cloudy. Lows 30 to 35...25 to 30 in the mountains. .MONDAY...Mostly cloudy. Highs 50 to 60. .TUESDAY...Mostly cloudy. Chance of rain and snow. Lows 35 to 40. Highs 50 to 60. .WEDNESDAY...Mostly cloudy. Chance of rain and snow. Lows 35 to 45. Highs 50 to 60. .THURSDAY...Partly cloudy. Slight chance of snow. Lows 25 to 30. Highs 40 to 50. $$