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, November 27 at 12:28 PM
5 County Map
Thu
Fri
Sat
Sun
Mon
Northern
Zone
95
78
59
G
G
PM2.5
PM2.5
PM2.5
PM2.5
PM2.5
Coast and Central Bay
91
72
42
G
G
PM2.5
PM2.5
PM2.5
PM2.5
PM2.5
Eastern
Zone
89
70
53
G
G
PM2.5
PM2.5
PM2.5
OZONE
OZONE
South Central Bay
78
74
38
G
G
PM2.5
PM2.5
PM2.5
OZONE
OZONE
Santa Clara Valley
101
84
38
G
G
PM2.5
PM2.5
PM2.5
PM2.5
PM2.5

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