The Infectious risk has risen noticeably over the past 12 weeks, reaching a notably higher level in the most recent week compared to prior weeks..
Allergy risk activity has been trending downward over the past 12 weeks in Washington, Oregon.
Pollution risk activity has been increasing over the past 12 weeks in Washington, Oregon.
Weather risk activity has been increasing over the past 12 weeks in Washington, Oregon.
Last updated: August 24, 2026
Data refreshed weekly