As of 5:05 PM EDT on May 18, 2025, out of 14 cities in Williams County, OH in our database, 11 cities (79%) have a UV Index reading of Moderate, while 3 cities (21%) have a UV Index reading of Low. The city with the highest UV Index reading right now is Edgerton, OH with a reading of 3.3.
Over the next 24 hours, the highest UV Index reading in Williams County, OH is expected to be 7.8 in Pioneer between 1:00 PM - 2:00 PM EDT tomorrow.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |