Clark County, IL: Current UV Index and Hourly Forecast

As of 10:44 AM CDT on October 31, 2025, all 5 cities in Clark County, IL in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Marshall, IL with a reading of 1.2.

Over the next 24 hours, the highest UV Index reading in Clark County, IL is expected to be 3.3 in Casey 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 Clark County, IL as of 10:44 AM CDT, October 31, 2025

Current UV Index in Cities in Clark County, IL

10:44 AM CDT, October 31, 2025