The Infectious risk has trended downward over the last 12 weeks, ending the period well below its earlier peak..
Allergy risk activity has been decreasing over the past 12 weeks in Cowlitz, Washington.
Pollution risk activity has been trending upward over the past 12 weeks in Cowlitz, Washington.
Weather risk activity has been climbing over the past 12 weeks in Cowlitz, Washington.
Last updated: August 24, 2026
Data refreshed weekly