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City of Yankton, SDYankton, SD 7-Day Night Weather Forecast
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Yankton, SD Weather Forecast
Yankton, SD Weather Forecast Date: 809 PM CDT Wed Sep 16 2026
The area/counties/county of: Yankton, including the city of Yankton.or toggle through each period.
Tonight... Mostly cloudy. Patchy fog after midnight. Near steady temperature in the lower 60s. Southeast winds 5 to 10 mph.
Thursday... Patchy fog in the morning. Mostly cloudy in the morning, then partly sunny with a slight chance of showers in the afternoon. Humid with highs in the mid 70s. Northeast winds 5 to 10 mph, becoming east in the afternoon. Chance of rain 20%.
Thursday Night... Cloudy with a chance of thunderstorms. A chance of showers in the evening, then showers after midnight. Humid with lows in the mid 60s. East winds 15 to 20 mph. Chance of rain 90%.
Friday... Mostly cloudy with a chance of showers and thunderstorms in the morning, then mostly sunny in the afternoon. Warmer with highs in the mid 80s. Southeast winds 15 to 20 mph, becoming southwest 10 to 15 mph in the afternoon. Chance of rain 50%.
Friday Night... Partly cloudy with a chance of showers with a slight chance of thunderstorms in the evening, then mostly cloudy after midnight. Humid with lows in the lower 60s. Northwest winds 5 to 10 mph. Chance of rain 30%.
Saturday... Cloudy. Not as warm with highs around 70.
Saturday Night... Mostly cloudy. Lows in the upper 50s.
Sunday... Cloudy with a 40% chance of showers. Highs in the mid 60s.
Sunday Night... Mostly cloudy with a 40% chance of showers. Lows in the upper 50s.
Monday... Mostly cloudy. Highs in the upper 60s.
Monday Night... Mostly cloudy in the evening, then becoming partly cloudy. Lows in the mid 50s.
Tuesday... Partly sunny. Highs around 70.
Tuesday Night... Partly cloudy. Lows in the mid 50s.
POP = Probability of Precipitation
Yankton Radar Loop
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