UV Index Today in Lake County, Illinois (IL)

The average maximum UV Index today across 86 locations in Lake County, Illinois (IL), is 6.1. The highest projected maximum is 6.7 in Arlington Heights at 1:00 PM CDT, while the lowest projected maximum is 5.4 in Waukegan at 1:00 PM CDT.

Tomorrow, the average maximum UV Index across those same locations is expected to be 7.3. The highest projected maximum is 7.5 in Lake Villa at 1:00 PM CDT, and the lowest projected maximum is 6.8 in Arlington Heights at 12:00 PM CDT.