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, September 21 at 11:21 AM
5 County Map
Fri
Sat
Sun
Mon
Tue
North Counties
55
53
55
M
M
PM2.5
PM2.5
PM2.5
PM2.5
PM2.5
Coast and Central Bay
57
53
55
M
M
PM2.5
PM2.5
PM2.5
PM2.5
PM2.5
Eastern District
87
64
58
M
M
OZONE
OZONE
OZONE
OZONE
OZONE
South Central Bay
50
46
50
M
M
PM2.5
PM2.5
PM2.5
PM2.5
PM2.5
Santa Clara Valley
93
80
54
M
M
OZONE
OZONE
OZONE
OZONE
OZONE

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