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, June 21 at 12:32 PM
5 County Map
Wed
Thu
Fri
Sat
Sun
North Counties
58
61
M
G
G
OZONE
OZONE
PM2.5
OZONE
OZONE
Coast and Central Bay
64
71
M
G
G
OZONE
OZONE
PM2.5
OZONE
OZONE
Eastern District
93
101
M
M
G
OZONE
OZONE
OZONE
OZONE
OZONE
South Central Bay
48
64
G
G
G
OZONE
OZONE
OZONE
OZONE
OZONE
Santa Clara Valley
93
101
M
M
G
OZONE
OZONE
OZONE
OZONE
OZONE

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Spare the Air Status

Thursday, 6/22
in Effect