The Infectious risk has trended steadily upward over the last 12 weeks, ending the period at its highest level..
Allergy risk activity has been climbing over the past 12 weeks in Warren, Illinois.
Pollution risk activity has been trending upward over the past 12 weeks in Warren, Illinois.
Weather risk activity has stayed relatively flat over the past 12 weeks in Warren, Illinois.
Last updated: July 6, 2026
Data refreshed weekly