As of 1:17 PM EDT on May 31, 2026, all 11 cities in Ottawa County, OH in our database have a UV Index reading of Very High. The city with the highest UV Index reading right now is Port Clinton, OH with a reading of 8.5.
Over the next 24 hours, the highest UV Index reading in Ottawa County, OH is expected to be 8.6 in Port Clinton 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 |