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, April 20 at 10:22 AM
5 County Map
Fri
Sat
Sun
Mon
Tue
North Counties
42
53
53
50
G
OZONE
PM2.5
PM2.5
PM2.5
OZONE
Coast and Central Bay
44
57
57
57
G
OZONE
PM2.5
PM2.5
PM2.5
PM2.5
Eastern District
44
55
55
50
G
OZONE
PM2.5
PM2.5
PM2.5
OZONE
South Central Bay
42
50
46
44
G
OZONE
PM2.5
OZONE
OZONE
OZONE
Santa Clara Valley
46
54
54
50
G
OZONE
OZONE
OZONE
OZONE
OZONE

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