The Infectious risk has shown little change over the last 12 weeks, showing no notable shift in recent weeks..
Allergy risk activity has been easing over the past 12 weeks in Ontario, New York.
Pollution risk activity has been climbing over the past 12 weeks in Ontario, New York.
Weather risk activity has been decreasing over the past 12 weeks in Ontario, New York.
Last updated: July 13, 2026
Data refreshed weekly