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 19 at 10:35 AM
5 County Map
Thu
Fri
Sat
Sun
Mon
North Counties
39
42
G
G
G
OZONE
OZONE
OZONE
OZONE
OZONE
Coast and Central Bay
41
44
M
M
G
OZONE
OZONE
PM2.5
PM2.5
OZONE
Eastern District
41
44
G
G
G
OZONE
OZONE
OZONE
OZONE
OZONE
South Central Bay
41
42
G
G
G
OZONE
OZONE
OZONE
OZONE
OZONE
Santa Clara Valley
43
46
M
M
G
OZONE
OZONE
OZONE
OZONE
OZONE

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