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 been climbing 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 trending upward over the past 12 weeks in Calvert, Maryland.
Last updated: August 31, 2026
Data refreshed weekly