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
Monday, October 15 at 11:33 AM
5 County Map
Mon
Tue
Wed
Thu
Fri
North Counties
48
40
G
G
G
OZONE
OZONE
OZONE
OZONE
OZONE
Coast and Central Bay
46
50
G
G
G
PM2.5
PM2.5
PM2.5
PM2.5
PM2.5
Eastern District
51
44
G
G
G
OZONE
OZONE
OZONE
OZONE
OZONE
South Central Bay
46
42
G
G
G
PM2.5
PM2.5
PM2.5
PM2.5
PM2.5
Santa Clara Valley
50
43
G
G
G
OZONE
OZONE
OZONE
OZONE
OZONE

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