The Infectious risk has held relatively steady over the last 12 weeks, with moderate levels persisting through the latest week..
Allergy risk activity has been easing over the past 12 weeks in Jefferson, Oregon.
Pollution risk activity has been increasing over the past 12 weeks in Jefferson, Oregon.
Weather risk activity has been trending upward over the past 12 weeks in Jefferson, Oregon.
Last updated: August 31, 2026
Data refreshed weekly