| NWS Forecast for: Yankton County Issued by: National Weather Service Sioux Falls, SD Last Update: 519 PM CDT Thu Jul 9 2026 | |
Tonight: Partly cloudy this evening, then becoming mostly cloudy. Lows in the mid 60s. Southeast winds around 5 mph. Friday: Mostly cloudy with a slight chance of showers in the morning, then partly sunny in the afternoon. Humid with highs in the upper 80s. South winds 5 to 10 mph. Chance of rain 20 percent. Friday Night: Partly cloudy. Humid with lows in the mid 60s. South winds 5 to 10 mph. Saturday: Sunny with highs in the lower 90s. South winds 5 to 10 mph. Saturday Night: Mostly clear. Humid with lows in the upper 60s. South winds 10 to 15 mph. Sunday: Sunny, hot with highs in the mid 90s. Sunday Night: Clear. Lows around 70. Monday: Sunny, hot with highs in the upper 90s. Monday Night: Mostly clear. Lows in the lower 70s. Tuesday: Sunny, hot with highs in the upper 90s. Tuesday Night: Mostly clear. Lows in the lower 70s. Wednesday: Sunny, hot with highs in the upper 90s. Wednesday Night: Mostly clear. Lows in the lower 70s. Thursday: Sunny, hot with highs in the upper 90s. | |
| Zone Forecast: Yankton County | |
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