The Infectious risk has stayed within a narrow range over the past 12 weeks, showing no notable shift in recent weeks..
Allergy risk activity has been decreasing over the past 12 weeks in Montgomery, Maryland.
Pollution risk activity has been increasing over the past 12 weeks in Montgomery, Maryland.
Weather risk activity has been increasing over the past 12 weeks in Montgomery, Maryland.
Last updated: July 13, 2026
Data refreshed weekly