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John Lake, MT Weather Forecast
John Lake, MT Weather Forecast Date: 1223 AM MDT Wed Sep 16 2026
The area/counties/county of: Flathead/Mission Valleys, including the cities of: Kalispell, Polson, and St. Ignatius.or toggle through each period.
Today... Mostly sunny. Highs in the mid 60s to lower 70s.
Tonight... Mostly clear. Lows in the 40s.
Thursday... Mostly sunny. Highs in the 70s.
Thursday Night... Partly cloudy in the evening then becoming mostly cloudy. A 40% chance of rain. Lows in the mid 40s to lower 50s.
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 upper 60s to mid 70s.
Friday Night... Mostly cloudy with a chance of rain showers and a slight chance of thunderstorms in the evening, then partly cloudy with a chance of rain after midnight. Chance of precipitation 40%. Lows in the 40s to lower 50s.
Saturday... Partly cloudy. A 20% chance of rain in the morning. Highs in the upper 60s to mid 70s.
Saturday Night... Mostly clear. Lows in the 40s to lower 50s.
Sunday... Mostly sunny. Highs in the upper 60s to mid 70s.
Sunday Night... Mostly clear. Lows in the 40s to lower 50s.
Monday... Mostly sunny. Highs in the 70s.
Monday Night... Mostly clear. Lows in the 40s to lower 50s.
POP = Probability of Precipitation
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