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, April 22 at 9:55 AM
5 County Map
Mon
Tue
Wed
Thu
Fri
North Counties
45
48
G
G
G
OZONE
OZONE
OZONE
OZONE
OZONE
Coast and Central Bay
46
46
G
G
G
OZONE
OZONE
OZONE
OZONE
OZONE
Eastern District
49
54
M
M
G
OZONE
OZONE
OZONE
OZONE
OZONE
South Central Bay
48
49
M
G
G
OZONE
OZONE
OZONE
OZONE
OZONE
Santa Clara Valley
51
61
M
G
G
OZONE
OZONE
OZONE
OZONE
OZONE

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