Infectious risk activity has been decreasing over the past 12 weeks in De Witt, Illinois.
Allergy risk activity has been increasing over the past 12 weeks in De Witt, Illinois.
No Pollution activity has been reported over the past 12 weeks in De Witt, Illinois.
Weather risk activity has been decreasing over the past 12 weeks in De Witt, Illinois.
Last updated: May 25, 2026
Data refreshed weekly