Jefferson County, WI: Current UV Index and Hourly Forecast

As of 10:50 AM CDT on June 7, 2025, all 14 cities in Jefferson County, WI in our database have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Ixonia, WI with a reading of 4.3.

Over the next 24 hours, the highest UV Index reading in Jefferson County, WI is expected to be 7.6 in Fort Atkinson 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 Jefferson County, WI as of 10:50 AM CDT, June 7, 2025

Current UV Index in Cities in Jefferson County, WI

10:50 AM CDT, June 7, 2025