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Dayton, MT Weather Forecast
Dayton, MT Weather Forecast Date: 1223 PM MDT Sun Sep 13 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 with a chance of rain showers until early morning, then rain showers likely late in the night. Chance of showers 70%. Lows in the upper 30s to mid 40s. Southwest winds 15 to 25 mph.
Monday... Mostly cloudy with a 50% chance of rain showers. Highs in the mid 50s to lower 60s.
Monday Night... Mostly cloudy. Patchy fog after midnight. Lows in the upper 30s to mid 40s.
Tuesday... Mostly cloudy. Patchy fog in the morning. Highs in the upper 50s to mid 60s.
Tuesday Night... Mostly cloudy. A 20% chance of rain showers in the evening. Lows in the upper 30s to mid 40s.
Wednesday... Mostly sunny. Highs in the 60s.
Wednesday Night... Clear. Lows in the upper 30s to mid 40s.
Thursday... Mostly sunny. Highs in the upper 60s to mid 70s.
Thursday Night... Mostly clear. A 20% chance of rain after midnight. Lows in the 40s.
Friday... Mostly sunny. Highs in the mid 60s to lower 70s.
Friday Night... Mostly clear. A 20% chance of rain in the evening. Lows in the 40s.
Saturday... Partly cloudy. Highs in the upper 60s to mid 70s.
Saturday Night... Partly cloudy. Lows in the 40s.
POP = Probability of Precipitation
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