The Infectious risk has shown an upward trend 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 Henry, Illinois.
Pollution risk activity has been increasing over the past 12 weeks in Henry, Illinois.
Weather risk activity has been climbing over the past 12 weeks in Henry, Illinois.
Last updated: July 6, 2026
Data refreshed weekly