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, February 27 at 10:30 AM
5 County Map
Fri
Sat
Sun
Mon
Tue
Northern
Zone
46
46
46
50
M
PM2.5
PM2.5
PM2.5
PM2.5
PM2.5
Coast and Central Bay
42
42
44
53
G
PM2.5
PM2.5
NO2
PM2.5
NO2
Eastern
Zone
36
33
38
46
G
OZONE
PM2.5
PM2.5
PM2.5
PM2.5
South Central Bay
37
35
40
50
G
OZONE
OZONE
NO2
PM2.5
NO2
Santa Clara Valley
34
33
38
46
G
OZONE
PM2.5
PM2.5
PM2.5
PM2.5

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