The Infectious risk has shown a gradual decrease over the last 12 weeks, bringing current levels down from earlier weeks..
Allergy risk activity has been climbing over the past 12 weeks in Washington, Utah.
Pollution risk activity has been increasing over the past 12 weeks in Washington, Utah.
Weather risk activity has been trending upward over the past 12 weeks in Washington, Utah.
Last updated: August 24, 2026
Data refreshed weekly