Winnebago County, IL: Current UV Index and Hourly Forecast

As of 4:15 AM CST on January 28, 2026, all 13 cities in Winnebago 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 Winnebago County, IL is expected to be 1.9 in Roscoe between 12:00 PM - 1:00 PM CST today.

Search Cities in Winnebago County, IL

UV Index Risk Levels
Range0 - 23 - 56 - 78 - 1011+
Color
RiskLowModerateHighVery HighExtreme
UV Index in Winnebago County, IL as of 4:15 AM CST, January 28, 2026

Current UV Index in Cities in Winnebago County, IL

4:15 AM CST, January 28, 2026