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
Wednesday, December 12 at 10:27 AM
5 County Map
Wed
Thu
Fri
Sat
Sun
North Counties
63
93
M
M
M
PM2.5
PM2.5
PM2.5
PM2.5
PM2.5
Coast and Central Bay
57
78
M
M
M
PM2.5
PM2.5
PM2.5
PM2.5
PM2.5
Eastern District
66
91
M
M
G
PM2.5
PM2.5
PM2.5
PM2.5
PM2.5
South Central Bay
53
66
M
M
G
PM2.5
PM2.5
PM2.5
PM2.5
PM2.5
Santa Clara Valley
68
82
M
M
M
PM2.5
PM2.5
PM2.5
PM2.5
PM2.5

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