As of 1:16 PM EDT on March 31, 2026, out of 4 cities in Defiance County, OH in our database, 3 cities (75%) have a UV Index reading of Moderate, while 1 city (25%) have a UV Index reading of Low. The city with the highest UV Index reading right now is Defiance, OH with a reading of 3.2.
Over the next 24 hours, the highest UV Index reading in Defiance County, OH is expected to be 3.4 in Brunersburg between 2:00 PM - 3:00 PM EDT today.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |