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
Monday, September 26 at 11:14 AM
5 County Map
Mon
Tue
Wed
Thu
Fri
North Counties
61
61
M
G
G
OZONE
OZONE
OZONE
OZONE
OZONE
Coast and Central Bay
74
63
M
M
G
OZONE
PM2.5
PM2.5
PM2.5
OZONE
Eastern District
132
104
M
M
G
OZONE
OZONE
OZONE
OZONE
OZONE
South Central Bay
61
63
M
G
G
OZONE
PM2.5
OZONE
OZONE
OZONE
Santa Clara Valley
126
101
M
M
G
OZONE
OZONE
OZONE
OZONE
OZONE

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Spare the Air Status

Monday, 9/26
in Effect
Tuesday, 9/27
in Effect