Walworth County, WI: Current UV Index and Hourly Forecast

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As of 4:08 PM CDT on May 20, 2026, all 20 cities in Walworth County, WI in our database have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Whitewater, WI with a reading of 4.4.

Over the next 24 hours, the highest UV Index reading in Walworth County, WI is expected to be 7 in Genoa City between 1:00 PM - 2:00 PM CDT tomorrow.

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Current UV Index in Cities in Walworth County, WI

• Allens Grove - 4.4
• Big Foot Prairie - 4.4
• Como - 4.4
• Darien - 4.4
• Delavan - 4.4
• Delavan Lake - 4.4
• East Troy - 4.4
• Elkhorn - 4.4
• Genoa City - 4.4
• Lake Geneva - 4.4
• Lake Ivanhoe - 4.4
• Lake Lorraine - 4.4
• Lauderdale Lakes - 4.4
• Lyons - 4.4
• Potter Lake - 4.4
• Sharon - 4.4
• Springfield - 4.4
• Walworth - 4.4
• Whitewater - 4.4
• Williams Bay - 4.4