Infectious risk activity has been decreasing over the past 12 weeks in DuPage, Illinois.
Allergy risk activity has been increasing over the past 12 weeks in DuPage, Illinois.
No Pollution activity has been reported over the past 12 weeks in DuPage, Illinois.
Weather risk activity has been increasing over the past 12 weeks in DuPage, Illinois.
Last updated: May 25, 2026
Data refreshed weekly