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
Tuesday, July 26 at 10:28 AM
5 County Map
Tue
Wed
Thu
Fri
Sat
North Counties
87
51
M
M
M
OZONE
OZONE
PM2.5
OZONE
OZONE
Coast and Central Bay
76
59
M
M
M
PM2.5
PM2.5
PM2.5
OZONE
OZONE
Eastern District
126
115
M
M
M
OZONE
OZONE
OZONE
OZONE
OZONE
South Central Bay
89
70
M
M
M
PM2.5
PM2.5
OZONE
OZONE
OZONE
Santa Clara Valley
118
101
M
M
M
OZONE
OZONE
PM2.5
PM2.5
PM2.5

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Spare the Air Status

Wednesday, 7/27
in Effect