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Big Spring Lake Weather Forecast
Big Spring Lake, MT Weather Forecast Date: 336 PM MDT Tue Sep 22 2026
Weather forecast for Big Spring Lake, MT
Tonight Lo: 49°F Lo: 9°C |
Tonight... Mostly cloudy in the evening then becoming partly cloudy. Lows in the upper 40s. West winds 5 to 10 mph. |
Wed Hi: 69°FHi: 21°C Lo: 45°F Lo: 7°C |
Wednesday... Sunny. Highs in the upper 60s. West winds 5 to 15 mph with gusts to around 30 mph. |
| Thu Hi: 75°FHi: 24°C Lo: 50°F Lo: 10°C |
Thursday... Mostly sunny. Highs in the mid 70s. Southwest winds up to 10 mph shifting to the southeast with gusts to around 25 mph in the afternoon. |
| Fri Hi: 75°FHi: 24°C Lo: 35°F Lo: 2°C |
Friday... Mostly sunny. Highs in the mid 70s. |
Sat Hi: 51°FHi: 11°C Lo: 35°F Lo: 2°C |
Saturday... Windy. Much cooler. Partly cloudy. Highs in the lower 50s. Lows in the mid 30s. |
Sun Hi: 55°FHi: 13°C Lo: 39°F Lo: 4°C |
Sunday... Mostly cloudy. Highs in the mid 50s. Lows in the upper 30s. |
| Mon Hi: 55°FHi: 13°C Lo: 39°F Lo: 4°C |
Monday... Mostly cloudy. Highs in the mid 50s. Lows in the upper 30s. |
| Mon Hi: 55°FHi: 13°C Lo: 40°F Lo: 4°C |
Monday... Mostly cloudy. Highs in the mid 50s. Lows in the upper 30s. |
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