Dewey, SD 7-Day Weather Forecast
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Dewey Weather Forecast


Dewey, SD Weather Forecast Date: 1132 PM MST Mon Nov 02 2026
Weather forecast for Dewey, SD
| Tonight Lo: 35°F Lo: 2°C |
Tonight... Partly cloudy with a 30% chance of rain. Breezy with lows in the mid 30s. Northwest winds 15 to 25 mph with gusts up to 35 mph. |
| Tue Hi: 50°FHi: 10°C Lo: 30°F Lo: -1°C |
Tuesday... Mostly sunny. Highs around 50. Northwest winds 10 to 20 mph with gusts up to 30 mph. |
| Wed Hi: 51°FHi: 11°C Lo: 35°F Lo: 2°C |
Wednesday... Mostly sunny in the morning, then becoming mostly cloudy. Highs in the lower 50s. Northwest winds 5 to 10 mph. |
| Thu Hi: 55°FHi: 13°C Lo: 35°F Lo: 2°C |
Thursday... Partly cloudy in the morning, then clearing. Highs in the mid 50s. |
| Fri Hi: 51°FHi: 11°C Lo: 35°F Lo: 2°C |
Friday... Partly cloudy in the morning, then clearing. Highs in the lower 50s. |
| Sat Hi: 51°FHi: 11°C Lo: 31°F Lo: -1°C |
Saturday... Mostly sunny. Highs in the lower 50s. |
| Sun Hi: 59°FHi: 15°C Lo: 40°F Lo: 4°C |
Sunday... Sunny. Highs in the upper 50s. |
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