UV Index Today in Wisconsin (WI)

Tuesday, October 13, 2026 -7:23 PM CDT (GMT-5)

The average maximum UV Index today across 1,516 locations in Wisconsin (WI), is 3.8. The highest projected maximum is 4.9 in Cuba City at 1:00 PM CDT, while the lowest projected maximum is 1.3 in Florence at 3:00 PM CDT.

Tomorrow, the average maximum UV Index across those same locations is expected to be 3.7. The highest projected maximum is 4.6 in Cassville at 1:00 PM CDT, and the lowest projected maximum is 1.5 in Phelps 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 - 3.7
  • Dane County - 4.5
  • Milwaukee County - 4.4
  • Waukesha County - 4.5
Data Source: National Oceanic and Atmospheric Administration (NOAA)

538 Places in Wisconsin (WI)

Maximum UV Index Today
  • Madison - 4.6
  • Milwaukee - 4.4
Data Source: National Oceanic and Atmospheric Administration (NOAA)