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, March 2 at 11:32 AM
5 County Map
Mon
Tue
Wed
Thu
Fri
Northern
Zone
50
53
M
G
G
PM2.5
PM2.5
PM2.5
PM2.5
PM2.5
Coast and Central Bay
53
45
G
G
G
PM2.5
NO2
NO2
NO2
PM2.5
Eastern
Zone
46
42
G
G
G
PM2.5
PM2.5
PM2.5
PM2.5
PM2.5
South Central Bay
50
38
G
G
G
PM2.5
NO2
PM2.5
PM2.5
PM2.5
Santa Clara Valley
46
42
G
G
G
PM2.5
PM2.5
PM2.5
PM2.5
PM2.5

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