Area Forecast Product
Issued by NWS Great Falls, MT
Issued by NWS Great Falls, MT
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904 FPUS65 KTFX 202138 AFPTFX Central and Southwest Montana Area Forecast National Weather Service Great Falls MT 337 PM MDT Thu Aug 20 2026 MTZ301>314-316>318-211200- Central Montana- National Weather Service Great Falls MT 337 PM MDT Thu Aug 20 2026 .TONIGHT...Mostly clear. Patchy smoke in the evening. Lows 50 to 60. .FRIDAY...Sunny. Highs 80 to 90...70 to 80 in the mountains. .FRIDAY NIGHT...Mostly cloudy. Lows 55 to 65. .SATURDAY...Mostly cloudy. Slight chance of showers. Highs 80 to 90. .SUNDAY...Partly cloudy. Slight chance of showers. Lows 55 to 65. Highs 80 to 90. .MONDAY...Mostly clear. Lows 50 to 60. Highs 75 to 85. .TUESDAY...Mostly clear. Lows 50 to 55. Highs 75 to 85. $$ MTZ315-319>330-211200- Southwest Montana- National Weather Service Great Falls MT 337 PM MDT Thu Aug 20 2026 .TONIGHT...Mostly cloudy in the evening then becoming partly cloudy. Lows 50 to 60. .FRIDAY...Partly cloudy. Highs 85 to 90...75 to 85 in the mountains. .FRIDAY NIGHT...Mostly cloudy. Lows 55 to 60. .SATURDAY...Mostly cloudy. Chance of rain showers and slight chance of thunderstorms. Highs 75 to 85. .SUNDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 50 to 60. Highs 75 to 85. .MONDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 45 to 55. Highs 70 to 80. .TUESDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 45 to 55. Highs 70 to 80. $$