Groton, SD 7-Day Weather Forecast
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Groton Weather Forecast


Groton, SD Weather Forecast Date: 821 AM CDT Thu Sep 17 2026
Weather forecast for Groton, SD
| Today Hi: 71°FHi: 22°C Lo: 55°F Lo: 13°C |
Today... Partly sunny. Highs in the lower 70s. Northeast winds 5 to 10 mph. |
| Fri Hi: 69°FHi: 21°C Lo: 51°F Lo: 11°C |
Friday... Showers, mainly in the morning. Highs in the upper 60s. East winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 90%. |
| Sat Hi: 69°FHi: 21°C Lo: 50°F Lo: 10°C |
Saturday... Mostly cloudy. Highs in the upper 60s. Northeast winds around 10 mph with gusts up to 20 mph. |
| Sun Hi: 69°FHi: 21°C Lo: 49°F Lo: 9°C |
Sunday... Mostly cloudy. A chance of showers in the afternoon. Highs in the upper 60s. Chance of rain 40%. |
| Mon Hi: 65°FHi: 18°C Lo: 49°F Lo: 9°C |
Monday... Cloudy with a slight chance of showers in the morning, then partly sunny in the afternoon. Highs in the mid 60s. Chance of rain 20%. |
| Tue Hi: 70°FHi: 21°C Lo: 49°F Lo: 9°C |
Tuesday... Mostly cloudy. Lows in the upper 40s. Highs around 70. |
| Wed Hi: 71°FHi: 22°C Lo: 49°F Lo: 9°C |
Wednesday... Mostly cloudy. A 20% chance of showers. Lows in the upper 40s. Highs in the lower 70s. |
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