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 13 at 11:12 AM
5 County Map
Thu
Fri
Sat
Sun
Mon
North Counties
93
84
M
M
G
PM2.5
PM2.5
PM2.5
PM2.5
PM2.5
Coast and Central Bay
78
63
M
M
G
PM2.5
PM2.5
PM2.5
PM2.5
PM2.5
Eastern District
91
78
M
G
G
PM2.5
PM2.5
PM2.5
PM2.5
PM2.5
South Central Bay
66
59
M
G
G
PM2.5
PM2.5
PM2.5
PM2.5
PM2.5
Santa Clara Valley
82
63
M
M
M
PM2.5
PM2.5
PM2.5
PM2.5
PM2.5

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