Wisconsin (WI): Current UV Index and Hourly Forecast

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As of 3:59 AM CDT on August 8, 2025, all 790 cities in Wisconsin in our database have a UV Index reading of 0, indicating no radiation from the sun.

Over the next 24 hours, the highest UV Index reading in Wisconsin is expected to be 7.9 in Lake Geneva between 1:00 PM - 2:00 PM CDT today.

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UV Index Risk Levels
Range0 - 23 - 56 - 78 - 1011+
Color
RiskLowModerateHighVery HighExtreme
UV Index in Wisconsin as of 3:59 AM CDT, August 8, 2025

Counties in Wisconsin (WI)

Current UV Index in Major Cities in Wisconsin (WI)

3:59 AM CDT, August 8, 2025