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