UV Index Today in Waukesha County, Wisconsin (WI)
Sunday, September 20, 2026 -11:23 AM CDT (GMT-5)
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The average maximum UV Index today across 49 locations in Waukesha County, Wisconsin (WI), is 4.5. The highest projected maximum is 5.6 in Sussex at 1:00 PM CDT, while the lowest projected maximum is 1.4 in Raymond at 2:00 PM CDT.
Tomorrow, the average maximum UV Index across those same locations is expected to be 3.4. The highest projected maximum is 4.8 in Menomonee Falls at 1:00 PM CDT, and the lowest projected maximum is 1.7 in Mukwonago at 12:00 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