Walworth County, WI: Current UV Index and Hourly Forecast

As of 12:30 AM CST on February 28, 2026, all 20 cities in Walworth County, WI 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 Walworth County, WI is expected to be 1.9 in Genoa City between 1:00 PM - 2:00 PM CST today.

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UV Index Risk Levels
Range0 - 23 - 56 - 78 - 1011+
Color
RiskLowModerateHighVery HighExtreme
UV Index in Walworth County, WI as of 12:30 AM CST, February 28, 2026

Current UV Index in Cities in Walworth County, WI

12:30 AM CST, February 28, 2026