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Polson, MT Weather Forecast
Polson, MT Weather Forecast Date: 1223 PM MDT Tue Sep 01 2026
The area/counties/county of: Flathead/Mission Valleys, including the cities of: Kalispell, Polson, and St. Ignatius.or toggle through each period.
Tonight... Mostly cloudy. A 30% chance of areas of rain in the evening. Lows in the upper 40s to mid 50s. South winds to 15 mph in the evening.
Wednesday... Slight chance of rain in the morning, then rain showers likely and a chance of thunderstorms in the afternoon. Chance of precipitation 70%. Highs in the 70s. Southwest winds to 15 mph.
Wednesday Night... Mostly cloudy with a 50% chance of rain. Lows in the upper 30s to mid 40s.
Thursday... Mostly cloudy with a 50% chance of rain. Highs in the 60s to lower 70s.
Thursday Night... Mostly cloudy with a 50% chance of rain. Lows in the upper 30s to mid 40s.
Friday... Mostly cloudy. A chance of rain in the morning, then chance of rain showers and a slight chance of thunderstorms in the afternoon. Chance of precipitation 40%. Highs in the mid 60s to lower 70s.
Friday Night... Mostly cloudy. Chance of rain showers and a slight chance of thunderstorms in the evening, then a chance of rain after midnight. Chance of precipitation 50%. Lows in the upper 30s to mid 40s.
Saturday... Partly cloudy. Chance of rain showers and a slight chance of thunderstorms in the morning. Chance of precipitation 30%. Highs in the upper 60s to mid 70s.
Saturday Night... Partly cloudy with a 30% chance of rain. Lows in the 40s.
Sunday... Partly cloudy with a 20% chance of rain. Highs in the 70s.
Sunday Night... Mostly cloudy. Chance of rain showers and a slight chance of thunderstorms in the evening, then a chance of rain after midnight. Chance of precipitation 50%. Lows in the 40s.
Labor Day... Mostly cloudy with a 50% chance of rain. Highs in the upper 60s to mid 70s.
Monday Night... Mostly cloudy with a 50% chance of rain. Lows in the 40s.
POP = Probability of Precipitation
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