Clinton County, IL: Current UV Index and Hourly Forecast

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As of 3:30 PM CDT on June 10, 2026, all 13 cities in Clinton County, IL in our database have a UV Index reading of Very High. The city with the highest UV Index reading right now is Breese, IL with a reading of 7.7.

Over the next 24 hours, the highest UV Index reading in Clinton County, IL is expected to be 10.3 in Breese between 1:00 PM - 2:00 PM CDT tomorrow.

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Current UV Index in Cities in Clinton County, IL

• Albers - 7.7
• Aviston - 7.7
• Bartelso - 7.7
• Beckemeyer - 7.7
• Breese - 7.7
• Carlyle - 7.7
• Damiansville - 7.7
• Germantown - 7.7
• Hoffman - 7.7
• Huey - 7.7
• New Baden - 7.7
• St. Rose - 7.6
• Trenton - 7.7