As of 2:12 PM CDT on August 12, 2026, out of 790 cities in Wisconsin in our database, 519 cities (66%) have a UV Index reading of High, while 271 cities (34%) have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Prairie du Chien, WI with a reading of 6.7.
Over the next 24 hours, the highest UV Index reading in Wisconsin is expected to be 7 in Lake Nebagamon between 1:00 PM - 2:00 PM CDT tomorrow.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |