The Infectious risk has fallen noticeably over the past 12 weeks, ending the period well below its earlier peak..
Allergy risk activity has remained stable over the past 12 weeks in Will, Illinois.
Pollution risk activity has been trending upward over the past 12 weeks in Will, Illinois.
Weather risk activity has been easing over the past 12 weeks in Will, Illinois.
Last updated: August 31, 2026
Data refreshed weekly