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, May 27 at 7:31 AM
5 County Map
Fri
Sat
Sun
Mon
Tue
North Counties
42
45
47
G
G
OZONE
OZONE
OZONE
OZONE
OZONE
Coast and Central Bay
43
46
59
M
M
OZONE
OZONE
PM2.5
PM2.5
PM2.5
Eastern District
49
54
61
M
M
OZONE
OZONE
OZONE
OZONE
OZONE
South Central Bay
44
46
48
G
G
OZONE
OZONE
OZONE
OZONE
OZONE
Santa Clara Valley
46
51
54
M
M
OZONE
OZONE
OZONE
OZONE
OZONE

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