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
Sunday, February 18 at 10:48 AM
5 County Map
Sun
Mon
Tue
Wed
Thu
North Counties
46
46
57
M
M
PM2.5
PM2.5
PM2.5
PM2.5
PM2.5
Coast and Central Bay
42
42
55
M
G
PM2.5
PM2.5
PM2.5
PM2.5
PM2.5
Eastern District
38
38
50
G
G
PM2.5
PM2.5
PM2.5
PM2.5
PM2.5
South Central Bay
33
33
42
G
G
PM2.5
PM2.5
PM2.5
PM2.5
PM2.5
Santa Clara Valley
42
42
46
G
G
PM2.5
PM2.5
PM2.5
PM2.5
PM2.5

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