Grundy County, IL: Current UV Index and Hourly Forecast

As of 12:25 AM CDT on April 22, 2025, all 11 cities in Grundy 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 Grundy County, IL is expected to be 7.2 in Morris between 1:00 PM - 2:00 PM CDT today.

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UV Index Risk Levels
Range0 - 23 - 56 - 78 - 1011+
Color
RiskLowModerateHighVery HighExtreme
UV Index in Grundy County, IL as of 12:25 AM CDT, April 22, 2025

Current UV Index in Cities in Grundy County, IL

12:25 AM CDT, April 22, 2025