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, October 24 at 11:03 AM
5 County Map
Fri
Sat
Sun
Mon
Tue
Northern
Zone
46
34
53
57
M
PM2.5
OZONE
PM2.5
PM2.5
PM2.5
Coast and Central Bay
38
33
27
53
M
PM2.5
OZONE
OZONE
PM2.5
PM2.5
Eastern
Zone
30
32
30
33
G
OZONE
OZONE
OZONE
PM2.5
PM2.5
South Central Bay
22
33
31
33
G
OZONE
OZONE
OZONE
PM2.5
PM2.5
Santa Clara Valley
34
32
35
42
M
NO2
OZONE
OZONE
PM2.5
PM2.5

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