UV Index Today in DuPage County, Illinois (IL)
Tuesday, April 7, 2026 - 3:48 AM CDT (GMT-5)
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The average maximum UV Index today across 54 locations in DuPage County, Illinois (IL), is 5.4. The highest projected maximum is 5.5 in Elgin at 1:00 PM CDT, while the lowest projected maximum is 5.4 in Chicago at 1:00 PM CDT.
Tomorrow, the average maximum UV Index across those same locations is expected to be 5.7. The highest projected maximum is 5.7 in Aurora at 1:00 PM CDT, and the lowest projected maximum is 5.6 in Chicago 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