Five Day

Forecast

The Air District issues a daily air quality forecast that predicts air pollution levels for the coming five-day period.  This forecast uses the U.S. EPA's Air Quality Index scale.

For forecasting purposes, cities in the Bay Area have been divided into five reporting zones. The cities within each reporting zone are listed here.

5 Day Forecast

Air Quality Forecast
Friday, January 20 at 9:48 AM
5 County Map
Fri
Sat
Sun
Mon
Tue
North Counties
46
50
46
57
M
PM2.5
PM2.5
PM2.5
PM2.5
PM2.5
Coast and Central Bay
42
46
42
53
M
PM2.5
PM2.5
PM2.5
PM2.5
PM2.5
Eastern District
38
46
42
46
G
PM2.5
PM2.5
PM2.5
PM2.5
PM2.5
South Central Bay
42
33
38
42
G
PM2.5
PM2.5
PM2.5
PM2.5
PM2.5
Santa Clara Valley
38
42
38
46
M
PM2.5
PM2.5
PM2.5
PM2.5
PM2.5

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