The Infectious risk has climbed over the past 12 weeks, ending the period at its highest level..
Allergy risk activity has stayed relatively flat over the past 12 weeks in Worcester, Massachusetts.
No Pollution activity has been reported over the past 12 weeks in Worcester, Massachusetts.
Weather risk activity has been easing over the past 12 weeks in Worcester, Massachusetts.
Last updated: August 24, 2026
Data refreshed weekly