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City of Watertown, SDWatertown, SD 7-Day Weather Forecast
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Watertown Weather Forecast
Watertown, SD Weather Forecast Date: 621 AM CDT Wed Sep 23 2026
Weather forecast for Watertown, SD
Today Hi: 61°FHi: 16°C Lo: 55°F Lo: 13°C |
Today... Mostly cloudy. A slight chance of showers this afternoon. Highs in the lower 60s. Southeast winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 20%. |
Thu Hi: 61°FHi: 16°C Lo: 55°F Lo: 13°C |
Thursday... Cloudy. A chance of showers with a slight chance of thunderstorms in the morning. Highs in the lower 60s. South winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 50%. |
| Fri Hi: 65°FHi: 18°C Lo: 55°F Lo: 13°C |
Friday... Mostly cloudy. A chance of showers in the morning, then showers likely in the afternoon. Highs in the mid 60s. Southeast winds 10 to 15 mph with gusts up to 30 mph. Chance of rain 60%. |
| Sat Hi: 70°FHi: 21°C Lo: 59°F Lo: 15°C |
Saturday... Mostly cloudy with a slight chance of showers in the morning, then partly sunny in the afternoon. Highs around 70. Chance of rain 20%. |
Sun Hi: 71°FHi: 22°C Lo: 59°F Lo: 15°C |
Sunday... Mostly cloudy. Lows in the upper 50s. Highs in the lower 70s. |
| Mon Hi: 70°FHi: 21°C Lo: 51°F Lo: 11°C |
Monday... Mostly cloudy in the morning, then becoming partly sunny. A slight chance of thunderstorms. A chance of showers in the morning, then showers likely in the afternoon. Highs around 70. Chance of rain 60%. |
| Tue Hi: 61°FHi: 16°C |
Tuesday... Mostly cloudy in the morning, then becoming partly sunny. A 40% chance of showers. Highs in the lower 60s. |
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