Waukesha County, WI: Current UV Index and Hourly Forecast

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As of 11:37 AM CDT on June 7, 2025, all 27 cities in Waukesha County, WI in our database have a UV Index reading of High. The city with the highest UV Index reading right now is Mukwonago, WI with a reading of 6.2.

Over the next 24 hours, the highest UV Index reading in Waukesha County, WI is expected to be 7.6 in Sussex between 1:00 PM - 2:00 PM CDT today.

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Current UV Index in Cities in Waukesha County, WI

• Big Bend - 6.1
• Brookfield - 6
• Butler - 6
• Chenequa - 6
• Delafield - 6
• Dousman - 6
• Eagle - 6
• Elm Grove - 6
• Hartland - 6.1
• Lac La Belle - 5.7
• Lannon - 5.7
• Menomonee Falls - 5.7
• Merton - 5.7
• Mukwonago - 6.2
• Muskego - 6.1
• Nashotah - 6
• New Berlin - 6.1
• North Lake - 5.7
• North Prairie - 6
• Oconomowoc - 6
• Oconomowoc Lake - 6
• Okauchee Lake - 5.7
• Sussex - 5.7
• Vernon - 6.1
• Village of Waukesha - 6.1
• Wales - 6.1
• Waukesha - 6.1