As of 9:22 AM EDT on June 30, 2025, all 11 cities in Ottawa County, OH in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Marblehead, OH with a reading of 1.
Over the next 24 hours, the highest UV Index reading in Ottawa County, OH is expected to be 8.6 in Oak Harbor between 3:00 PM - 4:00 PM EDT today.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |