The Infectious risk has climbed over the past 12 weeks, with the most recent week notably higher than earlier in the window..
Allergy risk activity has been increasing over the past 12 weeks in Clay, Illinois.
Pollution risk activity has been trending upward over the past 12 weeks in Clay, Illinois.
Weather risk activity has been increasing over the past 12 weeks in Clay, Illinois.
Last updated: July 6, 2026
Data refreshed weekly