Infectious risk activity has been decreasing over the past 12 weeks in Sitka, Alaska.
Allergy risk activity has been increasing over the past 12 weeks in Sitka, Alaska.
No Pollution activity has been reported over the past 12 weeks in Sitka, Alaska.
Weather risk activity has been decreasing over the past 12 weeks in Sitka, Alaska.
Last updated: May 24, 2026
Data refreshed weekly