As of 1:35 PM CDT on May 17, 2025, out of 790 cities in Wisconsin in our database, 461 cities (58%) have a UV Index reading of Low, 317 cities (40%) have a UV Index reading of Moderate, while 12 cities (2%) have a UV Index reading of High. The city with the highest UV Index reading right now is South Milwaukee, WI with a reading of 6.4.
Over the next 24 hours, the highest UV Index reading in Wisconsin is expected to be 7.3 in South Wayne between 12:00 PM - 1:00 PM CDT tomorrow.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |