Wisconsin (WI): Current UV Index and Hourly Forecast

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As of 3:35 AM CDT on June 17, 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 9.4 in Sun Prairie 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 3:35 AM CDT, June 17, 2025

Counties in Wisconsin (WI)

Current UV Index in Major Cities in Wisconsin (WI)

3:35 AM CDT, June 17, 2025