UV Index Today in Wisconsin (WI)

Wednesday, July 15, 2026 -11:13 AM CDT (GMT-5)

The average maximum UV Index today across 1,516 locations in Wisconsin (WI), is 8.5. The highest projected maximum is 9.8 in Platteville at 1:00 PM CDT, while the lowest projected maximum is 4.6 in Superior at 1:00 PM CDT.

Tomorrow, the average maximum UV Index across those same locations is expected to be 8.5. The highest projected maximum is 9.8 in Monroe at 1:00 PM CDT, and the lowest projected maximum is 5 in Russell at 2:00 PM CDT.

Data Source: National Oceanic and Atmospheric Administration (NOAA)

72 Counties in Wisconsin (WI)

Average Maximum UV Index Today
  • Brown County - 8.3
  • Dane County - 9.5
  • Milwaukee County - 9.1
  • Waukesha County - 9.4
Data Source: National Oceanic and Atmospheric Administration (NOAA)

538 Places in Wisconsin (WI)

Maximum UV Index Today
  • Madison - 9.7
  • Milwaukee - 9.1
Data Source: National Oceanic and Atmospheric Administration (NOAA)