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, September 25 at 9:49 AM
5 County Map
Mon
Tue
Wed
Thu
Fri
North Counties
57
59
M
M
M
PM2.5
PM2.5
PM2.5
PM2.5
PM2.5
Coast and Central Bay
53
57
M
M
M
PM2.5
PM2.5
PM2.5
PM2.5
PM2.5
Eastern District
48
61
M
M
M
OZONE
OZONE
OZONE
OZONE
OZONE
South Central Bay
45
48
M
M
G
OZONE
OZONE
OZONE
OZONE
OZONE
Santa Clara Valley
50
67
M
M
M
OZONE
OZONE
OZONE
OZONE
OZONE

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