Reporting Station : San Francisco International Airport, CA

There is alert 1 Weather Alert for your area.
46°F

Clear. Cool.

  • 79%
  • 5 mphSW
Current Time : 04:17 AM PST  Refresh Nearest / Estimated
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Air Quality Observations

Station Name Concentration Category
Sloughhouse 44 ppb Good
Grass Valley 58 ppb Moderate
Woodland 49 ppb Good
Colfax 46 ppb Good
Yosemite NP Turtleback Dome 45 ppb Good

Air Quality Forecast

San Francisco
Date Pollutant Concentration Category
25 Nov Particulates smaller than 2.5 microns 73 ppb Moderate
26 Nov Particulates smaller than 2.5 microns 89 ppb Moderate
27 Nov Particulates smaller than 2.5 microns 59 ppb Moderate
28 Nov Particulates smaller than 2.5 microns 50 ppb Good
29 Nov Particulates smaller than 2.5 microns n/a Moderate
30 Nov Particulates smaller than 2.5 microns n/a Moderate
01 Dec Particulates smaller than 2.5 microns n/a Moderate
Oakland
San Rafael
Redwood City

Extended Forecast

Date Category Reason
27 Nov Sunday Good well-mixed atmosphere, low pressure
28 Nov Monday Good well-mixed atmosphere, low pressure
29 Nov Tuesday Good strong winds, well-mixed atmosphere, low pressure
30 Nov Wednesday Good well-mixed atmosphere, low pressure
01 Dec Thursday Good precipitation, well-mixed atmosphere, low pressure
02 Dec Friday Good precipitation, well-mixed atmosphere, low pressure
03 Dec Saturday Good precipitation, well-mixed atmosphere, low pressure

Detailed Forecast

Date Category Reason
27 Nov Night Good cold temperatures, well-mixed atmosphere, low pressure
27 Nov Morning Good well-mixed atmosphere, low pressure
27 Nov Afternoon Good well-mixed atmosphere, low pressure
27 Nov Evening Good well-mixed atmosphere, low pressure
28 Nov Night Good well-mixed atmosphere, low pressure
28 Nov Morning Good well-mixed atmosphere, low pressure
28 Nov Afternoon Good strong winds, well-mixed atmosphere, low pressure
28 Nov Evening Good strong winds, well-mixed atmosphere, low pressure

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