Madison County, IL: Current UV Index and Hourly Forecast

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As of 3:22 PM CDT on May 7, 2025, out of 32 cities in Madison County, IL in our database, 27 cities (84%) have a UV Index reading of High, while 5 cities (16%) have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Highland, IL with a reading of 6.1.

Over the next 24 hours, the highest UV Index reading in Madison County, IL is expected to be 6.2 in Edwardsville between 2:00 PM - 3:00 PM CDT tomorrow.

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Current UV Index in Cities in Madison County, IL

• Alhambra - 5.9
• Alton - 4.4
• Bethalto - 5.7
• Collinsville - 5.6
• East Alton - 5.7
• Edwardsville - 5.6
• Glen Carbon - 5.6
• Godfrey - 4.4
• Granite City - 5.2
• Grantfork - 6.1
• Hamel - 5.9
• Hartford - 5.6
• Highland - 6.1
• Holiday Shores - 5.7
• Livingston - 5.9
• Madison - 5.2
• Marine - 6.1
• Maryville - 5.6
• Mitchell - 5.6
• Moro - 5.7
• New Douglas - 5.9
• Pontoon Beach - 5.6
• Prairietown - 5.7
• Rosewood Heights - 5.7
• Roxana - 5.6
• South Roxana - 5.6
• St. Jacob - 6.1
• Troy - 5.6
• Venice - 5.2
• Williamson - 5.9
• Wood River - 5.6
• Worden - 5.9