Illinois (IL): Current UV Index and Hourly Forecast

  • USA
  • Illinois

As of 2:37 PM CDT on June 7, 2026, out of 1461 cities in Illinois in our database, 696 cities (48%) have a UV Index reading of Very High, 288 cities (20%) have a UV Index reading of Moderate, 242 cities (17%) have a UV Index reading of Low, while 235 cities (16%) have a UV Index reading of High. The city with the highest UV Index reading right now is Vienna, IL with a reading of 9.3.

Over the next 24 hours, the highest UV Index reading in Illinois is expected to be 10.4 in Waterloo 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 Illinois as of 2:37 PM CDT, June 7, 2026

Counties in Illinois (IL)

Current UV Index in Major Cities in Illinois (IL)

2:37 PM CDT, June 7, 2026