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, February 15 at 11:25 AM
5 County Map
Fri
Sat
Sun
Mon
Tue
North Counties
35
42
42
M
M
OZONE
OZONE
PM2.5
PM2.5
PM2.5
Coast and Central Bay
38
40
38
G
G
OZONE
OZONE
PM2.5
PM2.5
PM2.5
Eastern District
35
38
40
G
G
OZONE
OZONE
OZONE
PM2.5
PM2.5
South Central Bay
40
39
39
G
G
OZONE
OZONE
OZONE
OZONE
PM2.5
Santa Clara Valley
40
38
38
G
M
OZONE
OZONE
PM2.5
PM2.5
PM2.5

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