The Infectious risk has held relatively steady over the past 12 weeks, with the most recent week close to the 12-week average..
Allergy risk activity has been trending upward over the past 12 weeks in Madison, Ohio.
Pollution risk activity has been trending upward over the past 12 weeks in Madison, Ohio.
Weather risk activity has been climbing over the past 12 weeks in Madison, Ohio.
Last updated: July 6, 2026
Data refreshed weekly