Infectious risk activity has been decreasing over the past 12 weeks in San Juan, Washington.
Allergy risk activity has been increasing over the past 12 weeks in San Juan, Washington.
No Pollution activity has been reported over the past 12 weeks in San Juan, Washington.
Weather risk activity has been increasing over the past 12 weeks in San Juan, Washington.
Last updated: May 25, 2026
Data refreshed weekly