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
Thursday, April 25 at 9:47 AM
5 County Map
Thu
Fri
Sat
Sun
Mon
North Counties
40
43
G
G
G
OZONE
OZONE
OZONE
OZONE
OZONE
Coast and Central Bay
45
40
G
G
G
OZONE
OZONE
OZONE
OZONE
OZONE
Eastern District
46
42
G
G
G
OZONE
OZONE
OZONE
OZONE
OZONE
South Central Bay
44
43
G
G
G
OZONE
OZONE
OZONE
OZONE
OZONE
Santa Clara Valley
46
46
G
G
G
OZONE
OZONE
OZONE
OZONE
OZONE

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