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, October 20 at 10:06 AM
5 County Map
Mon
Tue
Wed
Thu
Fri
Northern
Zone
46
50
G
G
G
PM2.5
PM2.5
PM2.5
PM2.5
PM2.5
Coast and Central Bay
42
25
G
G
G
PM2.5
OZONE
PM2.5
PM2.5
PM2.5
Eastern
Zone
38
24
G
G
G
PM2.5
OZONE
PM2.5
PM2.5
PM2.5
South Central Bay
33
33
G
G
G
PM2.5
PM2.5
PM2.5
PM2.5
PM2.5
Santa Clara Valley
38
38
G
G
G
PM2.5
PM2.5
PM2.5
PM2.5
PM2.5

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