LaSalle County, IL: Current UV Index and Hourly Forecast

As of 4:15 AM CST on January 28, 2026, all 30 cities in LaSalle 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 LaSalle County, IL is expected to be 2 in Streator between 12:00 PM - 1:00 PM CST today.

Search Cities in LaSalle County, IL

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

Current UV Index in Cities in LaSalle County, IL

4:15 AM CST, January 28, 2026