Weather WorldFlathead Lake, MT 7-Day Night Weather Forecast
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Flathead Lake, MT Weather Forecast
Flathead Lake, MT Weather Forecast Date: 1224 PM MDT Wed Oct 28 2026
The area/counties/county of: Flathead/Mission Valleys, including the cities of: Kalispell, Polson, and St. Ignatius.or toggle through each period.
Tonight... Rain likely early in the evening, then areas of rain in the late evening and overnight. Slight chance of snow after midnight. Patchy fog late in the night. Chance of precipitation 70%. No snow accumulation. Lows in the 30s.
Thursday... Partly cloudy. Patchy fog in the morning. Highs in the mid 40s to lower 50s.
Thursday Night... Mostly cloudy. Lows in the 20s.
Friday... Mostly cloudy. Highs in the mid 40s to lower 50s.
Friday Night... Mostly cloudy. Lows in the 20s to lower 30s.
Saturday... Mostly cloudy. Highs in the upper 40s to mid 50s.
Saturday Night... Mostly cloudy with a 50% chance of rain. Lows in the mid 20s to lower 30s.
Sunday... Rain likely. Chance of rain 70%. Highs in the mid 40s to lower 50s.
Sunday Night... Mostly cloudy. A chance of rain in the evening, then slight chance of rain and snow after midnight. Chance of precipitation 30%. Lows in the 20s to lower 30s.
Monday... Mostly cloudy. Highs in the mid 40s to lower 50s.
Monday Night... Partly cloudy in the evening then becoming mostly cloudy. Lows in the 20s.
Tuesday... Mostly cloudy. Highs in the upper 40s to mid 50s.
Tuesday Night... Mostly cloudy in the evening then becoming partly cloudy. Lows in the 20s to lower 30s.
POP = Probability of Precipitation
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