Union County, IL: Current UV Index and Hourly Forecast

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As of 8:40 AM CDT on August 26, 2025, all 6 cities in Union County, IL in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Anna, IL with a reading of 0.7.

Over the next 24 hours, the highest UV Index reading in Union County, IL is expected to be 8 in Dongola between 1:00 PM - 2:00 PM CDT today.

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Current UV Index in Cities in Union County, IL

• Alto Pass - 0.7
• Anna - 0.7
• Cobden - 0.7
• Dongola - 0.7
• Jonesboro - 0.7
• Mill Creek - 0.7