Weather WorldFlathead Lake, MT 7-Day Weather Forecast
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Flathead Lake Weather Forecast
Flathead Lake, MT Weather Forecast Date: 1223 PM MDT Wed Sep 02 2026
Weather forecast for Flathead Lake, MT
Tonight Lo: 45°F Lo: 7°C |
Tonight... Partly cloudy with areas of rain in the evening, then mostly cloudy after midnight. Cloudy with areas of rain late in the night. Patchy fog after midnight. Chance of rain 50%. Lows in the 40s. Southwest winds to 15 mph. |
| Thu Hi: 65°FHi: 18°C Lo: 40°F Lo: 4°C |
Thursday... Rain likely in the morning, then slight chance of rain in the afternoon. Chance of rain 60%. Highs in the 60s. |
Fri Hi: 65°FHi: 18°C Lo: 40°F Lo: 4°C |
Friday... Mostly cloudy with a 50% chance of rain. Patchy fog in the morning. Highs in the 60s. |
| Sat Hi: 65°FHi: 18°C Lo: 40°F Lo: 4°C |
Saturday... Mostly cloudy with a 50% chance of rain. Patchy fog in the morning. Highs in the 60s. |
| Sun Hi: 66°FHi: 19°C Lo: 45°F Lo: 7°C |
Sunday... Mostly cloudy. A 30% chance of rain in the morning. Highs in the mid 60s to lower 70s. |
Labor Day Hi: 65°FHi: 18°C Lo: 40°F Lo: 4°C |
Labor Day... Rain likely in the morning, then rain showers likely and a chance of thunderstorms in the afternoon. Chance of precipitation 60%. Highs in the 60s. |
| Tue Hi: 65°FHi: 18°C Lo: 40°F Lo: 4°C |
Tuesday... Mostly cloudy with a 40% chance of rain. Highs in the 60s. |
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