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 Brown, Illinois.
No Pollution activity has been reported over the past 12 weeks in Brown, Illinois.
Weather risk activity has been easing over the past 12 weeks in Brown, Illinois.
Last updated: August 31, 2026
Data refreshed weekly