LaSalle County, IL: Current UV Index and Hourly Forecast

As of 2:34 PM CDT on August 8, 2025, out of 30 cities in LaSalle County, IL in our database, 17 cities (57%) have a UV Index reading of Very High, while 13 cities (43%) have a UV Index reading of High. The city with the highest UV Index reading right now is Streator, IL with a reading of 7.6.

Over the next 24 hours, the highest UV Index reading in LaSalle County, IL is expected to be 7.9 in Streator between 1:00 PM - 2:00 PM CDT tomorrow.

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UV Index Risk Levels
Range0 - 23 - 56 - 78 - 1011+
Color
RiskLowModerateHighVery HighExtreme
UV Index in LaSalle County, IL as of 2:34 PM CDT, August 8, 2025

Current UV Index in Cities in LaSalle County, IL

2:34 PM CDT, August 8, 2025