The Infectious risk has climbed over the past 12 weeks, ending the period at its highest level..
Allergy risk activity has been increasing over the past 12 weeks in DuPage, Illinois.
Pollution risk activity has been increasing over the past 12 weeks in DuPage, Illinois.
Weather risk activity has been climbing over the past 12 weeks in DuPage, Illinois.
Last updated: July 6, 2026
Data refreshed weekly