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City of Watertown, SDWatertown, SD 7-Day Night Weather Forecast
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Watertown, SD Weather Forecast
Watertown, SD Weather Forecast Date: 422 PM CDT Fri Sep 25 2026
The area/counties/county of: Codington, including the city of Watertown.or toggle through each period.
Tonight... Cloudy. A chance of showers this evening, then showers likely after midnight. Near steady temperature in the upper 50s. Southeast winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 70%.
Saturday... Cloudy. Showers likely, mainly in the morning. Highs in the mid 60s. Southeast winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 70%.
Saturday Night... Mostly cloudy. A slight chance of showers in the evening. Lows in the upper 50s. South winds 5 to 10 mph. Chance of rain 20%.
Sunday... Mostly cloudy in the morning, then becoming partly sunny. Highs in the lower 70s. Northeast winds 5 to 10 mph.
Sunday Night... Partly cloudy in the evening, then becoming mostly cloudy. Lows in the mid 50s. Southeast winds 5 to 10 mph.
Monday... Mostly cloudy. A slight chance of very light drizzle in the afternoon. Highs around 70.
Monday Night... Cloudy. A chance of showers with a slight chance of thunderstorms in the evening, then showers likely with a chance of thunderstorms after midnight. Lows in the upper 50s. Chance of rain 70%.
Tuesday... Mostly cloudy with a chance of showers with a slight chance of thunderstorms. Highs in the mid 60s. Chance of rain 50%.
Tuesday Night... Mostly cloudy. A 20% chance of showers. Lows in the lower 50s. Highs in the upper 60s.
Wednesday... Mostly cloudy. A 20% chance of showers. Lows in the lower 50s. Highs in the upper 60s.
Wednesday Night... Partly cloudy. Lows in the lower 50s.
Thursday... Partly cloudy. A 20% chance of showers. Highs in the mid 60s. Lows in the lower 50s.
Thursday Night... Partly cloudy. A 20% chance of showers. Highs in the mid 60s. Lows in the lower 50s.
POP = Probability of Precipitation
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