Reporting Station : Grass Valley, CA

There are alert 2 Weather Alerts for your area.
52°F

Partly sunny. Cool.

  • 58%
  • 5 mphN
  • 58%
    Humidity
  • 37°F
    Dew Point
  • 51°F
    Comfort Level
  • 10 mi
    Visibility
  • 30.09 in

    Barometric Pressure
  • Air Quality
Current Time : 4:24 PM PDT  Refresh Nearest / Estimated
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Air Quality Observations

Station Name Concentration Category
Grass Valley 41 ppb Good
Woodland 38 ppb Good
Colfax 40 ppb Good
Sparks 29 ppb Good
Lemmon Valley 35 ppb Good

Air Quality Forecast

Colfax
Date Pollutant Concentration Category
29 Oct Particulates smaller than 2.5 microns 4 ppb Good
30 Oct Particulates smaller than 2.5 microns 44 ppb Good
31 Oct Particulates smaller than 2.5 microns 39 ppb Good
01 Nov Particulates smaller than 2.5 microns 44 ppb Good
02 Nov Particulates smaller than 2.5 microns 33 ppb Good
03 Nov Particulates smaller than 2.5 microns 28 ppb Good
04 Nov Particulates smaller than 2.5 microns 33 ppb Good
Western Nevada County
Cool
Auburn

Extended Forecast

Date Category Reason
31 Oct Thursday Good well-mixed atmosphere, low pressure
01 Nov Friday Good well-mixed atmosphere, low pressure
02 Nov Saturday Good precipitation, well-mixed atmosphere, low pressure
03 Nov Sunday Good strong winds, well-mixed atmosphere, low pressure
04 Nov Monday Good strong winds, well-mixed atmosphere, low pressure
05 Nov Tuesday Good well-mixed atmosphere, low pressure
06 Nov Wednesday Good strong winds, well-mixed atmosphere, low pressure

Detailed Forecast

Date Category Reason
31 Oct Afternoon Good well-mixed atmosphere, low pressure
31 Oct Evening Good well-mixed atmosphere, low pressure
01 Nov Night Good cold temperatures, well-mixed atmosphere, low pressure
01 Nov Morning Good cold temperatures, well-mixed atmosphere, low pressure
01 Nov Afternoon Good well-mixed atmosphere, low pressure
01 Nov Evening Good precipitation, well-mixed atmosphere, low pressure
02 Nov Night Good precipitation, cold temperatures, well-mixed atmosphere, low pressure
02 Nov Morning Good precipitation, cold temperatures, well-mixed atmosphere, low pressure

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