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
Monday, May 21 at 9:30 AM
5 County Map
Mon
Tue
Wed
Thu
Fri
North Counties
50
46
G
G
G
PM2.5
PM2.5
PM2.5
PM2.5
PM2.5
Coast and Central Bay
55
50
G
G
G
PM2.5
PM2.5
PM2.5
PM2.5
PM2.5
Eastern District
39
37
G
G
G
OZONE
OZONE
OZONE
OZONE
OZONE
South Central Bay
38
38
G
G
G
OZONE
OZONE
OZONE
OZONE
OZONE
Santa Clara Valley
40
39
G
G
G
OZONE
OZONE
OZONE
OZONE
OZONE

Utility Buttons

  • Email This Page
  • Share Share