The Infectious risk has shown a gradual increase over the last 12 weeks, ending the period at its highest level..
Allergy risk activity has held steady over the past 12 weeks in Decatur, Indiana.
No Pollution activity has been reported over the past 12 weeks in Decatur, Indiana.
Weather risk activity has been easing over the past 12 weeks in Decatur, Indiana.
Last updated: August 31, 2026
Data refreshed weekly