The Infectious risk has fallen noticeably over the past 12 weeks, ending the period well below its earlier peak..
Allergy risk activity has been trending upward over the past 12 weeks in Henry, Illinois.
No Pollution activity has been reported over the past 12 weeks in Henry, Illinois.
Weather risk activity has been easing over the past 12 weeks in Henry, Illinois.
Last updated: August 31, 2026
Data refreshed weekly