Yankton County, SD: Current UV Index and Hourly Forecast

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As of 9:15 AM CDT on October 1, 2026, all 7 cities in Yankton County, SD in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Yankton, SD with a reading of 0.3.

Over the next 24 hours, the highest UV Index reading in Yankton County, SD is expected to be 5.2 in Gayville between 1:00 PM - 2:00 PM CDT today.

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Current UV Index in Cities in Yankton County, SD

• Gayville - 0.3
• Jamesville Colony - 0.3
• Lesterville - 0.3
• Mission Hill - 0.3
• Utica - 0.3
• Volin - 0.3
• Yankton - 0.3