Area Forecast Product
Issued by NWS Great Falls, MT
Issued by NWS Great Falls, MT
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305 FPUS65 KTFX 050938 AFPTFX Central and Southwest Montana Area Forecast National Weather Service Great Falls MT 337 AM MDT Sat Sep 5 2026 MTZ301>314-316>318-060000- Central Montana- National Weather Service Great Falls MT 337 AM MDT Sat Sep 5 2026 .TODAY...Partly cloudy. Chance of rain showers in the morning. Highs 70 to 80...55 to 65 in the mountains. .TONIGHT...Increasing clouds. Chance of rain showers and slight chance of thunderstorms through the night. Lows 45 to 55...40 to 50 in the mountains. .SUNDAY...Mostly cloudy. Rain showers and chance of thunderstorms through the day. Highs 65 to 75...55 to 65 in the mountains. .LABOR DAY...Rain showers and chance of thunderstorms. Lows 45 to 55. Highs 60 to 70. .TUESDAY...Mostly cloudy. Chance of rain. Lows 40 to 50. Highs 60 to 70. .WEDNESDAY...Mostly clear. Lows 40 to 45. Highs 70 to 80. $$ MTZ315-319>330-060000- Southwest Montana- National Weather Service Great Falls MT 337 AM MDT Sat Sep 5 2026 .TODAY...Sunny. Highs 70 to 80...60 to 70 in the mountains. .TONIGHT...Mostly clear. Lows 40 to 50. .SUNDAY...Partly cloudy then becoming sunny in the afternoon then becoming mostly cloudy. Slight chance of thunderstorms in the evening. Highs 70 to 80...60 to 70 in the mountains. .LABOR DAY...Cooler. Rain showers and slight chance of thunderstorms. Lows 40 to 50. Highs 55 to 65. .TUESDAY...Partly cloudy. Chance of rain. Lows 35 to 45. Highs 55 to 65. .WEDNESDAY...Partly cloudy. Lows 35 to 45. Highs 65 to 75. $$