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Hazardous Weather Conditions

Current conditions at

Nevada County Air Park (KGOO)

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

Mist

43°F

6°C

Humidity 93%
Wind Speed N 0 MPH
Barometer 29.77 in (1008.13 mb)
Dewpoint 41°F (5°C)
Visibility 2.50 mi
Last update 15 Feb 11:55 PM PST
Extended Forecast for

Grass Valley CA

Winter Storm Warning until February 18, 10:00pm
Click here for hazard details and duration
Winter Storm Warning
  •  
    Winter Storm Warning until February 18, 10:00pm

    NOW until 10:00pm Wed

    Winter Storm Warning

  • Overnight

    Low: 42 °F

    Heavy Rain

  • Washington's Birthday

    Washington's Birthday: Rain. Patchy fog before 2pm, then areas of fog after 3pm. High near 44. Light and variable wind becoming south southwest 5 to 7 mph in the morning. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

    High: 44 °F

    Rain and
    Areas Fog

  • Monday Night

    Monday Night: Rain before 1am, then rain and snow. The snow could be heavy at times. Some thunder is also possible. Low around 32. South southwest wind around 7 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    Low: 32 °F

    Showers then
    Rain/Snow

  • Tuesday

    Tuesday: Snow showers before 1pm, then rain and snow showers. The snow could be heavy at times. Some thunder is also possible. High near 39. South wind 11 to 15 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.

    High: 39 °F

    Heavy Snow
    then
    Rain/Snow

  • Tuesday Night

    Tuesday Night: Rain and snow, becoming all snow after 10pm. Low around 29. South southwest wind 5 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    Low: 29 °F

    Rain/Snow
    then Snow
    Likely

  • Wednesday

    Wednesday: Snow. High near 40. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    High: 40 °F

    Snow

  • Wednesday Night

    Wednesday Night: Snow. The snow could be heavy at times. Low around 31. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

    Low: 31 °F

    Heavy Snow

  • Thursday

    Thursday: Snow before 1pm, then rain between 1pm and 4pm, then rain, possibly mixed with snow after 4pm. The snow could be heavy at times. Mostly cloudy, with a high near 41.

    High: 41 °F

    Heavy Snow
    then
    Rain/Snow

Detailed Forecast

Overnight
Showers and possibly a thunderstorm before 1am, then rain after 1am. Some of the storms could produce heavy rainfall. Steady temperature around 42. Light southeast wind. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Washington's Birthday
Rain. Patchy fog before 2pm, then areas of fog after 3pm. High near 44. Light and variable wind becoming south southwest 5 to 7 mph in the morning. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Monday Night
Rain before 1am, then rain and snow. The snow could be heavy at times. Some thunder is also possible. Low around 32. South southwest wind around 7 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Tuesday
Snow showers before 1pm, then rain and snow showers. The snow could be heavy at times. Some thunder is also possible. High near 39. South wind 11 to 15 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.
Tuesday Night
Rain and snow, becoming all snow after 10pm. Low around 29. South southwest wind 5 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Wednesday
Snow. High near 40. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Wednesday Night
Snow. The snow could be heavy at times. Low around 31. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.
Thursday
Snow before 1pm, then rain between 1pm and 4pm, then rain, possibly mixed with snow after 4pm. The snow could be heavy at times. Mostly cloudy, with a high near 41.
Thursday Night
Snow likely, mainly before 10pm. Mostly cloudy, with a low around 28.
Friday
A chance of snow before 10am, then a chance of rain. Partly sunny, with a high near 44.
Friday Night
A chance of rain and snow. Mostly cloudy, with a low around 30.
Saturday
A chance of rain and snow. Partly sunny, with a high near 49.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 35.
Sunday
Rain likely. Mostly cloudy, with a high near 53.
Basemap Options
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grass Valley CA
 39.23°N 121.05°W (Elev. 2657 ft)
Last Update:
5:46 pm PST Feb 15, 2026
Forecast Valid:
12am PST Feb 16, 2026-6pm PST Feb 22, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation