Waukesha County, WI: Current UV Index and Hourly Forecast

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As of 9:50 AM CDT on June 19, 2026, all 27 cities in Waukesha County, WI in our database have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Waukesha, WI with a reading of 3.1.

Over the next 24 hours, the highest UV Index reading in Waukesha County, WI is expected to be 8.9 in Oconomowoc between 1:00 PM - 2:00 PM CDT today.

Search Cities in Waukesha County, WI

Current UV Index in Cities in Waukesha County, WI

• Big Bend - 3.1
• Brookfield - 3.1
• Butler - 3.1
• Chenequa - 3.1
• Delafield - 3.1
• Dousman - 3.1
• Eagle - 3.1
• Elm Grove - 3.1
• Hartland - 3.1
• Lac La Belle - 3.1
• Lannon - 3.1
• Menomonee Falls - 3.1
• Merton - 3.1
• Mukwonago - 3.1
• Muskego - 3.1
• Nashotah - 3.1
• New Berlin - 3.1
• North Lake - 3.1
• North Prairie - 3.1
• Oconomowoc - 3.1
• Oconomowoc Lake - 3.1
• Okauchee Lake - 3.1
• Sussex - 3.1
• Vernon - 3.1
• Village of Waukesha - 3.1
• Wales - 3.1
• Waukesha - 3.1