Area Forecast Product
Issued by NWS Great Falls, MT
Issued by NWS Great Falls, MT
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805 FPUS65 KTFX 212138 AFPTFX Central and Southwest Montana Area Forecast National Weather Service Great Falls MT 337 PM MDT Fri Aug 21 2026 MTZ301>314-316>318-221200- Central Montana- National Weather Service Great Falls MT 337 PM MDT Fri Aug 21 2026 .TONIGHT...Increasing clouds. Lows 55 to 65. .SATURDAY...Mostly cloudy. Slight chance of showers. Highs 85 to 90...75 to 85 in the mountains. .SATURDAY NIGHT...Mostly cloudy. Slight chance of showers and thunderstorms. Lows 55 to 65. .SUNDAY...Partly cloudy. Slight chance of showers and thunderstorms. Highs 85 to 95. .MONDAY...Mostly clear. Lows 50 to 60. Highs 75 to 85. .TUESDAY...Mostly clear. Lows 50 to 55. Highs 80 to 85. .WEDNESDAY...Partly cloudy. Slight chance of showers. Lows 55 to 60. Highs 80 to 90. $$ MTZ315-319>330-221200- Southwest Montana- National Weather Service Great Falls MT 337 PM MDT Fri Aug 21 2026 .TONIGHT...Mostly cloudy. Slight chance of thunderstorms in the evening. Slight chance of showers through the night. Lows 55 to 60. .SATURDAY...Mostly cloudy. Chance of showers through the day. Chance of thunderstorms in the afternoon. Highs 80 to 90...70 to 80 in the mountains. .SATURDAY NIGHT...Mostly cloudy. Chance of rain showers and slight chance of thunderstorms. Lows 50 to 60. .SUNDAY...Partly cloudy. Chance of rain showers and slight chance of thunderstorms. Highs 75 to 85. .MONDAY...Mostly clear. Lows 45 to 55. Highs 75 to 85. .TUESDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 50 to 55. Highs 75 to 85. .WEDNESDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 50 to 55. Highs 75 to 85. $$