Big Sandy, MT 7-Day Weather Forecast
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Big Sandy Weather Forecast


Big Sandy, MT Weather Forecast Date: 542 PM MDT Mon Sep 14 2026
Weather forecast for Big Sandy, MT
| Tonight Lo: 41°F Lo: 5°C |
Tonight... Mostly cloudy then becoming partly cloudy late in the evening then becoming mostly cloudy then becoming partly cloudy late in the night. A 20% chance of rain showers in the evening. Patchy fog late in the night. Lows in the lower 40s. Northwest winds 10 to 15 mph with gusts to around 35 mph becoming west up to 5 mph after midnight. |
| Tue Hi: 65°FHi: 18°C Lo: 45°F Lo: 7°C |
Tuesday... Partly sunny. Patchy fog in the morning. Highs in the mid 60s. East winds up to 10 mph increasing to 10 to 15 mph in the afternoon. |
| Wed Hi: 61°FHi: 16°C Lo: 45°F Lo: 7°C |
Wednesday... Mostly sunny. Highs in the lower 60s. North winds up to 10 mph. |
| Thu Hi: 71°FHi: 22°C Lo: 50°F Lo: 10°C |
Thursday... Warmer, sunny. Highs in the lower 70s. |
| Fri Hi: 70°FHi: 21°C Lo: 50°F Lo: 10°C |
Friday... Mostly cloudy. Chance of rain showers and slight chance of thunderstorms. Highs around 70. Lows around 50. Chance of precipitation 50%. |
| Sat Hi: 71°FHi: 22°C Lo: 49°F Lo: 9°C |
Saturday... Mostly sunny. Chance of rain showers in the morning, then slight chance of rain showers in the afternoon. Highs in the lower 70s. Chance of showers 40%. |
| Sun Hi: 71°FHi: 22°C Lo: 49°F Lo: 9°C |
Sunday... Mostly clear. Highs in the lower 70s. Lows in the upper 40s. |
| Mon Hi: 71°FHi: 22°C Lo: 49°F Lo: 9°C |
Monday... Mostly clear. Highs in the lower 70s. Lows in the upper 40s. |
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