UV Index Today in DuPage County, Illinois (IL)
Wednesday, July 15, 2026 -12:01 PM CDT (GMT-5)
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The average maximum UV Index today across 54 locations in DuPage County, Illinois (IL), is 9.4. The highest projected maximum is 9.6 in Aurora at 1:00 PM CDT, while the lowest projected maximum is 9.3 in Elgin at 1:00 PM CDT.
Tomorrow, the average maximum UV Index across those same locations is expected to be 8.8. The highest projected maximum is 9.1 in Aurora at 1:00 PM CDT, and the lowest projected maximum is 8.6 in Bloomingdale at 1:00 PM CDT.
9 County Subdivisions in DuPage County, Illinois (IL)
Maximum UV Index Today
45 Places in DuPage County, Illinois (IL)
Maximum UV Index Today