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 decreasing over the past 12 weeks in Carroll, Maryland.
No Pollution activity has been reported over the past 12 weeks in Carroll, Maryland.
Weather risk activity has been easing over the past 12 weeks in Carroll, Maryland.
Last updated: August 31, 2026
Data refreshed weekly