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
Wednesday, August 27 at 10:22 AM
5 County Map
Wed
Thu
Fri
Sat
Sun
Northern
Zone
38
53
G
G
G
PM2.5
PM2.5
PM2.5
PM2.5
OZONE
Coast and Central Bay
42
50
G
G
G
PM2.5
PM2.5
PM2.5
PM2.5
OZONE
Eastern
Zone
47
49
G
G
G
OZONE
OZONE
OZONE
OZONE
OZONE
South Central Bay
33
42
G
G
G
PM2.5
PM2.5
PM2.5
OZONE
OZONE
Santa Clara Valley
44
47
G
G
G
OZONE
OZONE
OZONE
OZONE
OZONE

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