UV Index Today in Wisconsin (WI)

Saturday, August 8, 2026 -11:01 AM CDT (GMT-5)

The average maximum UV Index today across 1,516 locations in Wisconsin (WI), is 7.8. The highest projected maximum is 8.4 in Kenosha at 1:00 PM CDT, while the lowest projected maximum is 5.5 in Superior at 1:00 PM CDT.

Tomorrow, the average maximum UV Index across those same locations is expected to be 4.1. The highest projected maximum is 6.7 in La Crosse at 2:00 PM CDT, and the lowest projected maximum is 1.3 in Jackson at 12:00 PM CDT.

Data Source: National Oceanic and Atmospheric Administration (NOAA)

72 Counties in Wisconsin (WI)

Average Maximum UV Index Today
  • Brown County - 7.8
  • Dane County - 8.2
  • Milwaukee County - 8.3
  • Waukesha County - 8.3
Data Source: National Oceanic and Atmospheric Administration (NOAA)

538 Places in Wisconsin (WI)

Maximum UV Index Today
  • Madison - 8.2
  • Milwaukee - 8.3
Data Source: National Oceanic and Atmospheric Administration (NOAA)