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Current conditions at

Nevada County Air Park (KGOO)

Lat: 39.224028°NLon: 121.003083°WElev: 3154.0ft.

freezing fog

32°F

0°C

Humidity 92%
Wind Speed N 0 MPH
Barometer 29.71 in (1006.1 mb)
Dewpoint 30°F (-1°C)
Visibility 0.50 mi
Last update 19 Feb 03:35 AM PST
Extended Forecast for

Grass Valley CA

Winter Storm Warning February 19, 03:56am until February 19, 10:00pm
Click here for hazard details and duration
Winter Storm Warning
  •  
    Winter Storm Warning February 19, 03:56am until February 19, 10:00pm

    NOW until 10:00pm Thu

    Winter Storm Warning

  • Overnight

    Low: 30 °F

    Snow

  • Thursday

    Thursday: Snow, mainly before 2pm. The snow could be heavy at times.  High near 37. South wind 9 to 11 mph, with gusts as high as 26 mph.  Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.

    High: 37 °F

    Heavy Snow
    then Snow
    Likely

  • Thursday Night

    Thursday Night: A 10 percent chance of snow before 7pm.  Mostly cloudy, with a low around 25. South wind around 6 mph becoming calm  in the evening.

    Low: 25 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 42. Light and variable wind.

    High: 42 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 25. Calm wind.

    Low: 25 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 48.

    High: 48 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of rain after 10pm.  Partly cloudy, with a low around 35.

    Low: 35 °F

    Slight Chance
    Rain

  • Sunday

    Sunday: A chance of rain.  Partly sunny, with a high near 51.

    High: 51 °F

    Chance Rain

Detailed Forecast

Overnight
Snow. Low around 30. South southeast wind around 7 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 2 to 4 inches possible.
Thursday
Snow, mainly before 2pm. The snow could be heavy at times. High near 37. South wind 9 to 11 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.
Thursday Night
A 10 percent chance of snow before 7pm. Mostly cloudy, with a low around 25. South wind around 6 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 42. Light and variable wind.
Friday Night
Partly cloudy, with a low around 25. Calm wind.
Saturday
Partly sunny, with a high near 48.
Saturday Night
A 20 percent chance of rain after 10pm. Partly cloudy, with a low around 35.
Sunday
A chance of rain. Partly sunny, with a high near 51.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 41.
Monday
A chance of rain. Mostly cloudy, with a high near 55.
Monday Night
Rain. Cloudy, with a low around 44.
Tuesday
Rain. Cloudy, with a high near 53.
Tuesday Night
Rain. Cloudy, with a low around 43.
Wednesday
Rain likely. Mostly cloudy, with a high near 54.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Grass Valley CA
 39.23°N 121.05°W (Elev. 2657 ft)
3:26 am PST Feb 19, 2026
3am PST Feb 19, 2026-6pm PST Feb 25, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database