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
Monday, July 24 at 10:48 AM
5 County Map
Mon
Tue
Wed
Thu
Fri
North Counties
50
42
G
G
G
PM2.5
PM2.5
PM2.5
PM2.5
PM2.5
Coast and Central Bay
55
42
G
M
M
PM2.5
PM2.5
PM2.5
PM2.5
PM2.5
Eastern District
46
42
G
M
M
OZONE
OZONE
OZONE
OZONE
OZONE
South Central Bay
42
42
G
G
G
PM2.5
PM2.5
PM2.5
PM2.5
PM2.5
Santa Clara Valley
46
37
G
M
M
OZONE
OZONE
OZONE
OZONE
OZONE

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