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, August 16 at 10:23 AM
5 County Map
Wed
Thu
Fri
Sat
Sun
North Counties
53
55
M
M
M
PM2.5
PM2.5
PM2.5
PM2.5
PM2.5
Coast and Central Bay
55
57
M
M
M
PM2.5
PM2.5
PM2.5
PM2.5
PM2.5
Eastern District
50
55
M
M
G
PM2.5
PM2.5
OZONE
OZONE
PM2.5
South Central Bay
42
42
G
G
G
PM2.5
PM2.5
OZONE
OZONE
PM2.5
Santa Clara Valley
46
50
M
M
G
PM2.5
PM2.5
OZONE
OZONE
PM2.5

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