The Infectious risk has fallen noticeably over the past 12 weeks, ending the period well below its earlier peak..
Allergy risk activity has been easing over the past 12 weeks in King, Washington.
Pollution risk activity has been increasing over the past 12 weeks in King, Washington.
Weather risk activity has been increasing over the past 12 weeks in King, Washington.
Last updated: August 31, 2026
Data refreshed weekly