The Infectious risk has eased over the last 12 weeks, with the most recent week notably lower than earlier in the window..
Allergy risk activity has been easing over the past 12 weeks in Morrow, Oregon.
Pollution risk activity has been increasing over the past 12 weeks in Morrow, Oregon.
Weather risk activity has been trending upward over the past 12 weeks in Morrow, Oregon.
Last updated: July 6, 2026
Data refreshed weekly