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
Tuesday, May 21 at 10:29 AM
5 County Map
Tue
Wed
Thu
Fri
Sat
North Counties
30
37
G
G
G
OZONE
OZONE
OZONE
OZONE
OZONE
Coast and Central Bay
31
36
G
G
G
OZONE
OZONE
PM2.5
OZONE
PM2.5
Eastern District
32
39
G
G
G
OZONE
OZONE
OZONE
OZONE
OZONE
South Central Bay
31
38
G
G
G
OZONE
OZONE
OZONE
OZONE
OZONE
Santa Clara Valley
32
37
G
G
G
OZONE
OZONE
OZONE
OZONE
OZONE

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