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
Saturday, September 24 at 11:37 AM
5 County Map
Sat
Sun
Mon
Tue
Wed
North Counties
55
54
M
M
M
PM2.5
OZONE
OZONE
OZONE
OZONE
Coast and Central Bay
59
67
M
M
M
PM2.5
OZONE
OZONE
PM2.5
PM2.5
Eastern District
74
104
USG
M
M
OZONE
OZONE
OZONE
OZONE
OZONE
South Central Bay
63
59
M
M
M
PM2.5
PM2.5
PM2.5
PM2.5
OZONE
Santa Clara Valley
80
108
USG
M
M
OZONE
OZONE
OZONE
OZONE
OZONE

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Spare the Air Status

Sunday, 9/25
in Effect