Boone County, IL: Current UV Index and Hourly Forecast

As of 8:36 PM CDT on August 28, 2025, all 8 cities in Boone County, IL 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 Boone County, IL is expected to be 7.2 in Capron between 1:00 PM - 2:00 PM CDT tomorrow.

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UV Index Risk Levels
Range0 - 23 - 56 - 78 - 1011+
Color
RiskLowModerateHighVery HighExtreme
UV Index in Boone County, IL as of 8:36 PM CDT, August 28, 2025

Current UV Index in Cities in Boone County, IL

8:36 PM CDT, August 28, 2025