The Infectious risk has shown an upward trend over the last 12 weeks, ending the period at its highest level..
Allergy risk activity has been increasing over the past 12 weeks in De Witt, Illinois.
Pollution risk activity has been trending upward over the past 12 weeks in De Witt, Illinois.
Weather risk activity has been trending upward over the past 12 weeks in De Witt, Illinois.
Last updated: July 6, 2026
Data refreshed weekly