As of 11:56 AM CDT on June 7, 2025, out of 19 cities in Marathon County, WI in our database, 18 cities (95%) have a UV Index reading of Moderate, while 1 city (5%) have a UV Index reading of High. The city with the highest UV Index reading right now is Kronenwetter, WI with a reading of 5.5.
Over the next 24 hours, the highest UV Index reading in Marathon County, WI is expected to be 6.9 in Kronenwetter between 1:00 PM - 2:00 PM CDT today.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |