Sun River, MT 7-Day Weather Forecast
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Sun River Weather Forecast


Sun River, MT Weather Forecast Date: 1232 AM MDT Tue Sep 08 2026
Weather forecast for Sun River, MT
| Tonight Lo: 45°F Lo: 7°C |
Tonight... Breezy. Partly cloudy. A 50% chance of rain showers. Highs in the lower 60s. Lows 41 to 48. Southwest winds 5 to 25 mph with gusts to around 40 mph. |
| Wed Hi: 75°FHi: 24°C Lo: 51°F Lo: 11°C |
Wednesday... Warmer, sunny. Highs in the mid 70s. Southwest winds 10 to 20 mph. |
| Thu Hi: 80°FHi: 27°C Lo: 45°F Lo: 7°C |
Thursday... Windy, sunny. Highs around 80. Southwest winds 15 to 30 mph with gusts to around 45 mph. |
| Fri Hi: 60°FHi: 16°C Lo: 39°F Lo: 4°C |
Friday... Cooler. Partly sunny with a 50% chance of rain showers. Highs around 60. |
| Sat Hi: 59°FHi: 15°C Lo: 39°F Lo: 4°C |
Saturday... Mostly cloudy. Slight chance of rain showers in the morning, then chance of rain showers in the afternoon. Highs in the upper 50s. Chance of showers 50%. |
| Sun Hi: 51°FHi: 11°C Lo: 39°F Lo: 4°C |
Sunday... Mostly cloudy with a 50% chance of rain showers. Highs in the lower 50s. |
| Mon Hi: 65°FHi: 18°C Lo: 39°F Lo: 4°C |
Monday... Partly cloudy. Highs in the mid 60s. Lows in the upper 30s. |
| Tue Hi: 65°FHi: 18°C Lo: 39°F Lo: 4°C |
Tuesday... Partly cloudy. Highs in the mid 60s. Lows in the upper 30s. |
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