The Infectious risk has trended steadily upward over the past 12 weeks, with the most recent week notably higher than earlier in the window..
Allergy risk activity has been decreasing over the past 12 weeks in Polk, Oregon.
Pollution risk activity has been increasing over the past 12 weeks in Polk, Oregon.
Weather risk activity has been increasing over the past 12 weeks in Polk, Oregon.
Last updated: August 24, 2026
Data refreshed weekly