Stephenson County, IL: Current UV Index and Hourly Forecast

As of 11:34 AM CDT on September 18, 2025, out of 12 cities in Stephenson County, IL in our database, 7 cities (58%) have a UV Index reading of Low, while 5 cities (42%) have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Dakota, IL with a reading of 4.2.

Over the next 24 hours, the highest UV Index reading in Stephenson County, IL is expected to be 4.2 in Dakota between 11:00 AM - 12:00 PM CDT today.

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UV Index Risk Levels
Range0 - 23 - 56 - 78 - 1011+
Color
RiskLowModerateHighVery HighExtreme
UV Index in Stephenson County, IL as of 11:34 AM CDT, September 18, 2025

Current UV Index in Cities in Stephenson County, IL

11:34 AM CDT, September 18, 2025