| NWS Forecast for: Yankton County Issued by: National Weather Service Sioux Falls, SD Last Update: 819 PM CDT Tue Aug 25 2026 | |
| Tonight: Mostly clear. Lows in the lower 60s. Northwest winds 10 to 15 mph. Wednesday: Sunny. Highs in the lower 80s. Northwest winds 10 to 15 mph with gusts up to 25 mph. Wednesday Night: Mostly clear. Lows in the upper 50s. North winds 5 to 10 mph. Thursday: Sunny. Highs in the mid 80s. Northwest winds around 5 mph. Thursday Night: Mostly clear. Lows in the upper 50s. Southeast winds around 5 mph. Friday: Mostly sunny. Highs in the mid 80s. Friday Night: Mostly cloudy with a chance of showers and thunderstorms. Lows in the upper 60s. Chance of rain 50 percent. Saturday: Mostly sunny. Highs in the upper 80s. Saturday Night: Partly cloudy. Lows in the upper 60s. Sunday: Mostly cloudy in the morning, then becoming mostly sunny. Highs in the upper 80s. Sunday Night: Partly cloudy in the evening, then becoming mostly cloudy. Lows in the mid 60s. Monday: Mostly sunny. Highs in the mid 80s. Monday Night: Partly cloudy. Lows in the lower 60s. Tuesday: Mostly sunny. Highs in the mid 80s. | |
| Zone Forecast: Yankton County | |
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