Area Forecast Product
Issued by NWS Great Falls, MT
Issued by NWS Great Falls, MT
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899 FPUS65 KTFX 172139 AFPTFX Central and Southwest Montana Area Forecast National Weather Service Great Falls MT 338 PM MDT Mon Aug 17 2026 MTZ301>314-316>318-181200- Central Montana- National Weather Service Great Falls MT 338 PM MDT Mon Aug 17 2026 .TONIGHT...Mostly cloudy in the evening then becoming partly cloudy. Patchy smoke through the night. Slight chance of showers and thunderstorms through the night. Lows 50 to 55. .TUESDAY...Partly cloudy. and patchy smoke through the day. Slight chance of thunderstorms in the afternoon. Highs 75 to 85... 65 to 75 in the mountains. .TUESDAY NIGHT...Partly cloudy. Patchy smoke. Slight chance of showers and thunderstorms. Lows 50 to 55. .WEDNESDAY...Mostly clear. Highs 75 to 85. .THURSDAY...Mostly clear. Lows 50 to 60. Highs 75 to 85. .FRIDAY...Partly cloudy. Lows 50 to 55. Highs 80 to 85. .SATURDAY...Mostly cloudy. Chance of showers and slight chance of thunderstorms. Lows 55 to 60. Highs 80 to 90. $$ MTZ315-319>330-181200- Southwest Montana- National Weather Service Great Falls MT 338 PM MDT Mon Aug 17 2026 .TONIGHT...Mostly cloudy. Slight chance of showers and thunderstorms in the evening. Lows 45 to 55. .TUESDAY...Partly cloudy. Slight chance of thunderstorms in the afternoon. Highs 75 to 80...65 to 75 in the mountains. .TUESDAY NIGHT...Mostly cloudy in the evening then clearing. Slight chance of showers and thunderstorms. Lows 45 to 55. .WEDNESDAY...Mostly clear. Highs 70 to 80. .THURSDAY...Mostly clear. Lows 50 to 55. Highs 75 to 85. .FRIDAY...Partly cloudy. Chance of rain showers and slight chance of thunderstorms. Lows 50 to 55. Highs 75 to 85. .SATURDAY...Mostly cloudy. Chance of rain showers and slight chance of thunderstorms. Lows 50 to 60. Highs 75 to 85. $$