Weather WorldHarrison Lake, MT 7-Day Weather Forecast
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Harrison Lake Weather Forecast
Harrison Lake, MT Weather Forecast Date: 1222 AM MDT Mon Oct 19 2026
Weather forecast for Harrison Lake, MT
Today Hi: 56°FHi: 13°C Lo: 36°F Lo: 2°C |
Today... Partly cloudy. Highs in the mid 50s to lower 60s. |
| Tue Hi: 56°FHi: 13°C Lo: 35°F Lo: 2°C |
Tuesday... Partly cloudy. Highs in the mid 50s to lower 60s. |
Wed Hi: 60°FHi: 16°C Lo: 36°F Lo: 2°C |
Wednesday... Mostly sunny. Highs in the upper 50s to mid 60s. |
Thu Hi: 56°FHi: 13°C Lo: 35°F Lo: 2°C |
Thursday... Partly cloudy. A 30% chance of rain in the afternoon. Highs in the mid 50s to lower 60s. |
Fri Hi: 45°FHi: 7°C Lo: 26°F Lo: -3°C |
Friday... Rain and snow likely. Chance of precipitation 90%. Cooler. Highs in the 40s. |
Sat Hi: 40°FHi: 4°C Lo: 26°F Lo: -3°C |
Saturday... Mostly cloudy. Highs in the upper 30s to mid 40s. |
Sun Hi: 40°FHi: 4°C |
Sunday... Mostly cloudy with a chance of snow. A chance of rain in the afternoon. Chance of precipitation 40%. Highs in the upper 30s to mid 40s. |
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