DeKalb County, IL: Current UV Index and Hourly Forecast

As of 11:01 AM CDT on June 4, 2025, all 13 cities in DeKalb County, IL in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is DeKalb, IL with a reading of 0.4.

Over the next 24 hours, the highest UV Index reading in DeKalb County, IL is expected to be 5.8 in Hinckley between 2:00 PM - 3:00 PM CDT today.

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UV Index Risk Levels
Range0 - 23 - 56 - 78 - 1011+
Color
RiskLowModerateHighVery HighExtreme
UV Index in DeKalb County, IL as of 11:01 AM CDT, June 4, 2025

Current UV Index in Cities in DeKalb County, IL

11:01 AM CDT, June 4, 2025