As of 2:57 PM CDT on June 10, 2026, out of 12 cities in Trempealeau County, WI in our database, 8 cities (67%) have a UV Index reading of Low, while 4 cities (33%) have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Osseo, WI with a reading of 3.6.
Over the next 24 hours, the highest UV Index reading in Trempealeau County, WI is expected to be 7 in Osseo between 11:00 AM - 12:00 PM CDT tomorrow.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |