As of 6:25 PM CDT on July 18, 2025, all 790 cities in Wisconsin in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Platteville, WI with a reading of 1.3.
Over the next 24 hours, the highest UV Index reading in Wisconsin is expected to be 8.6 in Fountain City 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 |