South Dakota (SD): Current UV Index and Hourly Forecast

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As of 4:11 PM CST on February 21, 2026, all 483 cities in South Dakota in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Hot Springs, SD with a reading of 0.9.

Over the next 24 hours, the highest UV Index reading in South Dakota is expected to be 3 in Ardmore between 12:00 PM - 1:00 PM MST tomorrow.

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UV Index Risk Levels
Range0 - 23 - 56 - 78 - 1011+
Color
RiskLowModerateHighVery HighExtreme
UV Index in South Dakota as of 4:11 PM CST, February 21, 2026

Counties in South Dakota (SD)

Current UV Index in Major Cities in South Dakota (SD)

4:11 PM CST, February 21, 2026