The Infectious risk has remained broadly stable over the past 12 weeks, showing no notable shift in recent weeks..
Allergy risk activity has held steady over the past 12 weeks in Washington, Ohio.
Pollution risk activity has been climbing over the past 12 weeks in Washington, Ohio.
Weather risk activity has been increasing over the past 12 weeks in Washington, Ohio.
Last updated: July 6, 2026
Data refreshed weekly