Ottawa County, OH: Current UV Index and Hourly Forecast

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As of 9:14 AM EDT on October 12, 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 Port Clinton, OH with a reading of 0.3.

Over the next 24 hours, the highest UV Index reading in Ottawa County, OH is expected to be 4.2 in Oak Harbor between 2:00 PM - 3:00 PM EDT today.

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Current UV Index in Cities in Ottawa County, OH

• Clay Center - 0.3
• Curtice - 0.3
• Elmore - 0.3
• Genoa - 0.3
• Lakeside - 0.3
• Marblehead - 0.3
• Oak Harbor - 0.3
• Port Clinton - 0.3
• Put-in-Bay - 0.3
• Rocky Ridge - 0.3
• Williston - 0.3