Weather WorldFlathead Lake, MT 7-Day Night Weather Forecast
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Flathead Lake, MT Weather Forecast
Flathead Lake, MT Weather Forecast Date: 1228 AM 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.
Today... Areas of rain in the morning. Areas of snow early in the morning. Rain likely in the afternoon. Chance of precipitation 70%. No snow accumulation. Highs in the 40s. South winds to 15 mph in the morning.
Tonight... Mostly cloudy with a chance of rain. Slight chance of snow after midnight. Patchy fog after midnight. Chance of precipitation 50%. Lows in the 20s.
Thursday... Mostly cloudy. Patchy fog in the morning. Highs in the 40s to lower 50s.
Thursday Night... Partly cloudy in the evening then becoming mostly cloudy. Lows in the 20s.
Friday... Mostly cloudy. Highs in the mid 40s to lower 50s.
Friday Night... Mostly cloudy in the evening then becoming partly cloudy. Lows in the 20s.
Saturday... Mostly cloudy. Highs in the mid 40s to lower 50s.
Saturday Night... Mostly cloudy with a 40% chance of rain. Lows in the mid 20s to lower 30s.
Sunday... Mostly cloudy with a 50% chance of rain. 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.
Monday... Mostly cloudy. Highs in the mid 40s to lower 50s.
Monday Night... Partly cloudy. Lows in the 20s.
POP = Probability of Precipitation
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