Clayton County, IA: Current UV Index and Hourly Forecast

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As of 12:08 AM CDT on July 31, 2025, all 16 cities in Clayton County, IA in our database have a UV Index reading of 0, indicating no radiation from the sun.

Over the next 24 hours, the highest UV Index reading in Clayton County, IA is expected to be 7.9 in Guttenberg between 2:00 PM - 3:00 PM CDT today.

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Current UV Index in Cities in Clayton County, IA

• Clayton - 0
• Elkader - 0
• Elkport - 0
• Farmersburg - 0
• Garber - 0
• Garnavillo - 0
• Guttenberg - 0
• Luana - 0
• Marquette - 0
• McGregor - 0
• Monona - 0
• North Buena Vista - 0
• Osterdock - 0
• St. Olaf - 0
• Strawberry Point - 0
• Volga - 0