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
Thursday, December 18 at 9:34 AM
5 County Map
Thu
Fri
Sat
Sun
Mon
Northern
Zone
68
57
M
M
M
PM2.5
PM2.5
PM2.5
PM2.5
PM2.5
Coast and Central Bay
57
53
M
M
M
PM2.5
PM2.5
PM2.5
PM2.5
PM2.5
Eastern
Zone
38
38
M
M
M
PM2.5
PM2.5
PM2.5
PM2.5
PM2.5
South Central Bay
42
33
G
M
M
PM2.5
PM2.5
PM2.5
PM2.5
PM2.5
Santa Clara Valley
42
33
M
M
M
PM2.5
PM2.5
PM2.5
PM2.5
PM2.5

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