Johnson County, IL: Current UV Index and Hourly Forecast

As of 6:49 AM CST on December 21, 2024, all 7 cities in Johnson 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 Johnson County, IL is expected to be 2 in Cypress between 12:00 PM - 1:00 PM CST today.

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UV Index Risk Levels
Range0 - 23 - 56 - 78 - 1011+
Color
RiskLowModerateHighVery HighExtreme
UV Index in Johnson County, IL as of 6:49 AM CST, December 21, 2024

Current UV Index in Cities in Johnson County, IL

6:49 AM CST, December 21, 2024