| NWS Forecast for: Yankton County Issued by: National Weather Service Sioux Falls, SD Last Update: 1027 PM CDT Wed Aug 27 2025 |  |
| Overnight: Partly cloudy late this evening, then clearing. Lows in the upper 50s. South winds 5 to 10 mph. Thursday: Mostly sunny. Highs in the lower 80s. East winds 5 to 10 mph. Thursday Night: Partly cloudy in the evening, then becoming mostly cloudy. Lows around 60. East winds 5 to 10 mph. Friday: Partly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the upper 70s. Southeast winds 5 to 10 mph. Chance of rain 20 percent. Friday Night: Mostly cloudy. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. Lows in the lower 60s. Southeast winds 5 to 10 mph. Chance of rain 40 percent. Saturday: Mostly cloudy with a chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the mid 70s. Chance of rain 50 percent. Saturday Night: A chance of thunderstorms in the evening. Mostly cloudy with a chance of showers. Lows around 60. Chance of rain 50 percent. Sunday: Mostly cloudy with a chance of showers. A chance of thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 50 percent. Sunday Night: Mostly cloudy. A chance of showers after midnight. Lows in the upper 50s. Chance of rain 40 percent. Labor Day: Partly sunny. Highs in the mid 70s. Monday Night: Partly cloudy. Lows in the upper 50s. Tuesday: Mostly sunny. Highs around 80. Tuesday Night: Partly cloudy. Lows in the upper 50s. Wednesday: Partly sunny. Highs in the lower 70s. | |
| Zone Forecast: Yankton County | |
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