UV Index Today in Lake County, Illinois (IL)

The average maximum UV Index today across 86 locations in Lake County, Illinois (IL), is 6.7. The highest projected maximum is 7.5 in Salem Lakes at 12:00 PM CDT, while the lowest projected maximum is 6 in Waukegan at 1:00 PM CDT.

Tomorrow, the average maximum UV Index across those same locations is expected to be 7.1. The highest projected maximum is 8 in Arlington Heights at 1:00 PM CDT, and the lowest projected maximum is 6.5 in Waukegan at 12:00 PM CDT.