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Yankton County, SD 7-Day Weather Forecast
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Yankton County Weather Forecast
Yankton County, SD Weather Forecast Date: 724 PM CDT Tue Oct 20 2026
Weather forecast for Yankton County, SD
Tonight Lo: 49°F Lo: 9°C |
Tonight... Mostly clear. Lows in the upper 40s. Southeast winds 5 to 10 mph. |
Wed Hi: 75°FHi: 24°C Lo: 51°F Lo: 11°C |
Wednesday... Sunny. Highs in the mid 70s. Southeast winds around 5 mph. |
| Thu Hi: 79°FHi: 26°C Lo: 59°F Lo: 15°C |
Thursday... Sunny. Highs in the upper 70s. Southeast winds 10 to 15 mph. |
Fri Hi: 75°FHi: 24°C Lo: 60°F Lo: 16°C |
Friday... Mostly sunny. A slight chance of showers in the morning. Breezy with highs in the mid 70s. Chance of rain 20%. |
Sat Hi: 65°FHi: 18°C Lo: 45°F Lo: 7°C |
Saturday... Mostly cloudy in the morning, then becoming partly sunny. A 40% chance of showers. Highs in the mid 60s. |
| Sun Hi: 55°FHi: 13°C Lo: 41°F Lo: 5°C |
Sunday... Mostly cloudy with a 40% chance of showers. Cooler with highs in the mid 50s. |
Mon Hi: 55°FHi: 13°C Lo: 39°F Lo: 4°C |
Monday... Partly sunny. Highs in the mid 50s. |
Yankton County Radar Loop
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