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City of Jefferson, SDJefferson, SD 7-Day Night Weather Forecast
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Jefferson, SD Weather Forecast
Jefferson, SD Weather Forecast Date: 919 AM CDT Tue Sep 08 2026
The area/counties/county of: Union, including the cities of: North Sioux City, Beresford, Elk Point, Alcester, and Jefferson.or toggle through each period.
Rest of Today... Partly sunny with a chance of showers with a slight chance of thunderstorms. Highs in the lower 80s. South winds 5 to 10 mph, becoming west this afternoon. Chance of rain 50%.
Tonight... Partly cloudy. Humid with lows in the lower 60s. Northwest winds around 5 mph.
Wednesday... Sunny. Highs around 80. Northwest winds 5 to 10 mph.
Wednesday Night... Mostly clear. Lows in the mid 50s. Northwest winds around 5 mph in the evening, becoming light and variable.
Thursday... Sunny. Highs in the lower 80s. South winds around 5 mph, increasing to 10 to 15 mph in the afternoon.
Thursday Night... Mostly clear. Lows in the lower 60s.
Friday... Sunny, breezy with highs in the upper 80s.
Friday Night... Partly cloudy in the evening, then becoming mostly clear. Lows in the upper 50s.
Saturday... Mostly sunny. Not as warm with highs in the mid 70s.
Saturday Night... Mostly clear in the evening, then partly cloudy with a chance of showers after midnight. Lows in the mid 50s. Chance of rain 30%.
Sunday... Mostly cloudy in the morning, then becoming partly sunny. A chance of showers in the morning. Highs in the lower 70s. Chance of rain 50%.
Sunday Night... Partly cloudy in the evening, then becoming mostly cloudy. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. Lows in the mid 50s. Chance of rain 60%.
POP = Probability of Precipitation
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