The Infectious risk has shown a gradual increase over the last 12 weeks, ending the period at its highest level..
Allergy risk activity has been climbing over the past 12 weeks in Butler, Pennsylvania.
No Pollution activity has been reported over the past 12 weeks in Butler, Pennsylvania.
Weather risk activity has been trending downward over the past 12 weeks in Butler, Pennsylvania.
Last updated: August 31, 2026
Data refreshed weekly