FPUS65 KTFX 210424 AFPTFX Central and Southwest Montana Area Forecast National Weather Service Great Falls MT 1023 PM MDT Fri Mar 20 2026 MTZ301>314-316>318-211200- Central Montana- National Weather Service Great Falls MT 1023 PM MDT Fri Mar 20 2026 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 AM MDT SATURDAY FOR Eastern Glacier, Western Toole, and Central Pondera...Southern High Plains... .REST OF TONIGHT...Partly cloudy. Slight chance of rain after midnight. Lows 45 to 50...35 to 45 in the mountains. West winds 20 to 30 mph with gusts to 55 mph. .SATURDAY...Mostly cloudy. Chance of rain through the day. Slight chance of snow in the afternoon. Highs 50 to 60...40 to 50 in the mountains. Northwest winds 20 to 25 mph with gusts to 35 mph in the afternoon. .SATURDAY NIGHT...Partly cloudy. Colder. Slight chance of rain and snow. Lows 25 to 30. .SUNDAY...Mostly clear. Highs 45 to 55. West winds around 20 mph with gusts to 40 mph. .MONDAY...Mostly cloudy. Lows 25 to 30. Highs 50 to 60. .TUESDAY...Mostly cloudy. Lows 30 to 35. Highs 50 to 60. .WEDNESDAY...Mostly cloudy. Lows 40 to 45. Highs 55 to 65. $$ MTZ315-319>330-211200- Southwest Montana- National Weather Service Great Falls MT 1023 PM MDT Fri Mar 20 2026 .REST OF TONIGHT...Partly cloudy. Lows 40 to 50...35 to 45 in the mountains. .SATURDAY...Increasing clouds. Chance of rain through the day. Highs 60 to 70...50 to 60 in the mountains. West winds 20 to 30 mph with gusts to 50 mph in the afternoon. .SATURDAY NIGHT...Mostly clear. Colder. Slight chance of rain and snow. Lows 25 to 30. Gusts up to 40 mph in the evening. .SUNDAY...Mostly clear. Highs 45 to 55. .MONDAY...Mostly cloudy. Lows 25 to 35. Highs 50 to 60. .TUESDAY...Mostly cloudy. Lows 30 to 40. Highs 55 to 65. .WEDNESDAY...Partly cloudy. Slight chance of rain. Lows 40 to 45. Highs 60 to 70. $$