The Infectious risk has held relatively steady over the past 12 weeks, with high levels persisting through the latest week..
Allergy risk activity has been increasing over the past 12 weeks in Hardin, Illinois.
No Pollution activity has been reported over the past 12 weeks in Hardin, Illinois.
Weather risk activity has been climbing over the past 12 weeks in Hardin, Illinois.
Last updated: August 24, 2026
Data refreshed weekly