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

  • USA
  • South Dakota

As of 2:54 PM CDT on April 20, 2025, out of 483 cities in South Dakota in our database, 287 cities (59%) have a UV Index reading of Moderate, 193 cities (40%) have a UV Index reading of High, while 3 cities (1%) have a UV Index reading of Low. The city with the highest UV Index reading right now is Custer, SD with a reading of 6.9.

Over the next 24 hours, the highest UV Index reading in South Dakota is expected to be 6.9 in Custer between 1:00 PM - 2:00 PM MDT today.

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UV Index Risk Levels
Range0 - 23 - 56 - 78 - 1011+
Color
RiskLowModerateHighVery HighExtreme
UV Index in South Dakota as of 2:54 PM CDT, April 20, 2025

Counties in South Dakota (SD)

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

2:54 PM CDT, April 20, 2025