UV Index Today in Waukesha County, Wisconsin (WI)
Saturday, August 15, 2026 -2:07 AM CDT (GMT-5)
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The average maximum UV Index today across 49 locations in Waukesha County, Wisconsin (WI), is 3.9. The highest projected maximum is 5.4 in Oconomowoc at 1:00 PM CDT, while the lowest projected maximum is 2.6 in Mukwonago at 2:00 PM CDT.
Tomorrow, the average maximum UV Index across those same locations is expected to be 8. The highest projected maximum is 8.1 in Mukwonago at 1:00 PM CDT, and the lowest projected maximum is 7.9 in Menomonee Falls at 1:00 PM CDT.
8 County Subdivisions in Waukesha County, Wisconsin (WI)
Maximum UV Index Today
41 Places in Waukesha County, Wisconsin (WI)
Maximum UV Index Today