The Infectious risk has held relatively steady over the last 12 weeks, with high levels persisting through the latest week..
Allergy risk activity has been climbing over the past 12 weeks in Berkshire, Massachusetts.
No Pollution activity has been reported over the past 12 weeks in Berkshire, Massachusetts.
Weather risk activity has been decreasing over the past 12 weeks in Berkshire, Massachusetts.
Last updated: August 24, 2026
Data refreshed weekly