The Infectious risk has shown little change over the last 12 weeks, with the most recent week close to the 12-week average..
Allergy risk activity has been easing over the past 12 weeks in Alameda, California.
No Pollution activity has been reported over the past 12 weeks in Alameda, California.
Weather risk activity has been trending downward over the past 12 weeks in Alameda, California.
Last updated: August 31, 2026
Data refreshed weekly