As of 2:34 PM CDT on April 1, 2025, out of 14 cities in St. Croix County, WI in our database, 11 cities (79%) have a UV Index reading of Low, while 3 cities (21%) have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Star Prairie, WI with a reading of 2.9.
Over the next 24 hours, the highest UV Index reading in St. Croix County, WI is expected to be 2.9 in Star Prairie between 2:00 PM - 3:00 PM CDT today.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |