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Harrison Weather Forecast
Harrison, MT Weather Forecast Date: 336 PM MDT Fri Sep 11 2026
Weather forecast for Harrison, MT
Tonight Lo: 45°F Lo: 7°C |
Tonight... Mostly cloudy. Patchy fog late in the night. Lows in the mid 40s. Northeast winds 10 to 15 mph shifting to the north after midnight. Gusts up to 30 mph. |
| Sat Hi: 69°FHi: 21°C Lo: 41°F Lo: 5°C |
Saturday... Mostly cloudy in the morning then becoming mostly sunny. Patchy fog in the morning. Highs in the upper 60s. Northeast winds up to 10 mph. |
Sun Hi: 70°FHi: 21°C Lo: 41°F Lo: 5°C |
Sunday... Mostly sunny. A 50% chance of rain in the afternoon. Highs around 70. East winds up to 5 mph shifting to the southwest with gusts to around 30 mph in the afternoon. |
Mon Hi: 61°FHi: 16°C Lo: 39°F Lo: 4°C |
Monday... Mostly sunny. Highs in the lower 60s. |
| Tue Hi: 65°FHi: 18°C Lo: 40°F Lo: 4°C |
Tuesday... Mostly clear. Lows in the upper 30s. Highs in the mid 60s. |
Wed Hi: 65°FHi: 18°C Lo: 40°F Lo: 4°C |
Wednesday... Partly cloudy. Lows around 40. Highs in the mid 60s. |
| Wed Hi: 65°FHi: 18°C Lo: 40°F Lo: 4°C |
Wednesday... Partly cloudy. Lows around 40. Highs in the mid 60s. |
| Thu Hi: 71°FHi: 22°C Lo: 45°F Lo: 7°C |
Thursday... Sunny. Highs in the lower 70s. |
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