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
Friday, October 19 at 11:31 AM
5 County Map
Fri
Sat
Sun
Mon
Tue
North Counties
61
61
59
45
G
PM2.5
PM2.5
PM2.5
OZONE
OZONE
Coast and Central Bay
68
63
57
46
G
PM2.5
PM2.5
PM2.5
PM2.5
PM2.5
Eastern District
63
66
46
43
G
PM2.5
PM2.5
OZONE
OZONE
OZONE
South Central Bay
55
59
50
46
G
PM2.5
PM2.5
PM2.5
PM2.5
PM2.5
Santa Clara Valley
67
74
45
43
G
OZONE
OZONE
OZONE
OZONE
OZONE

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Air Quality Advisory

Air Quality Advisory through Sunday, October 21, due to wildfire smoke from southern Oregon fires. See our Wildfire Safety Tips web page.