The Infectious risk has shown little change over the last 12 weeks, with the most recent week close to the 12-week average..
Allergy risk activity has remained stable over the past 12 weeks in Guernsey, Ohio.
Pollution risk activity has been trending upward over the past 12 weeks in Guernsey, Ohio.
Weather risk activity has been increasing over the past 12 weeks in Guernsey, Ohio.
Last updated: July 6, 2026
Data refreshed weekly