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Hazardous Weather Conditions

Current conditions at

Nevada County Air Park (KGOO)

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

Clear

48°F

9°C

Humidity 66%
Wind Speed SE 9 MPH
Barometer 29.93 in (1013.55 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 15 Feb 09:15 AM PST
Extended Forecast for

Grass Valley CA

Winter Storm Warning February 15, 10:00pm until February 18, 10:00pm
Click here for hazard details and duration
Winter Storm Warning

  • Today

    Today: Rain likely, mainly after 3pm. Partly sunny, with a high near 55. South wind 6 to 8 mph, with gusts as high as 18 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    High: 55 °F

    Slight Chance
    Rain then
    Rain Likely

  • Tonight

    Tonight: Rain. Low around 39. Light south southeast wind. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

    Low: 39 °F

    Rain

  • Washington's Birthday

    Washington's Birthday: Rain. High near 45. Calm wind becoming southeast around 6 mph in the morning. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

    High: 45 °F

    Rain

  • Monday Night

    Monday Night: Rain before 4am, then snow. Low around 33. South wind around 6 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    Low: 33 °F

    Rain then
    Rain/Snow

  • Tuesday

    Tuesday: Snow before 10am, then rain. Some thunder is also possible. High near 40. South wind 11 to 15 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New snow accumulation of around an inch possible.

    High: 40 °F

    Rain/Snow
    then Showers

  • Tuesday Night

    Tuesday Night: Rain and snow showers, becoming all snow after 10pm. Some thunder is also possible. Low around 30. Chance of precipitation is 90%. New snow accumulation of around an inch possible.

    Low: 30 °F

    Rain/Snow
    then Snow
    Likely

  • Wednesday

    Wednesday: Snow before 1pm, then rain. High near 41. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    High: 41 °F

    Snow then
    Rain/Snow

  • Wednesday Night

    Wednesday Night: Snow. Mostly cloudy, with a low around 31.

    Low: 31 °F

    Snow

  • Thursday

    Thursday: Snow likely before 1pm, then rain likely between 1pm and 4pm, then rain and snow likely after 4pm. Mostly cloudy, with a high near 41.

    High: 41 °F

    Snow Likely
    then
    Rain/Snow
    Likely

Detailed Forecast

Today
Rain likely, mainly after 3pm. Partly sunny, with a high near 55. South wind 6 to 8 mph, with gusts as high as 18 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Tonight
Rain. Low around 39. Light south southeast wind. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Washington's Birthday
Rain. High near 45. Calm wind becoming southeast around 6 mph in the morning. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Monday Night
Rain before 4am, then snow. Low around 33. South wind around 6 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Tuesday
Snow before 10am, then rain. Some thunder is also possible. High near 40. South wind 11 to 15 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New snow accumulation of around an inch possible.
Tuesday Night
Rain and snow showers, becoming all snow after 10pm. Some thunder is also possible. Low around 30. Chance of precipitation is 90%. New snow accumulation of around an inch possible.
Wednesday
Snow before 1pm, then rain. High near 41. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Wednesday Night
Snow. Mostly cloudy, with a low around 31.
Thursday
Snow likely before 1pm, then rain likely between 1pm and 4pm, then rain and snow likely after 4pm. Mostly cloudy, with a high near 41.
Thursday Night
Rain and snow likely, becoming all snow after 7pm. Mostly cloudy, with a low around 28.
Friday
Rain and snow likely. Partly sunny, with a high near 45.
Friday Night
Rain and snow likely. Mostly cloudy, with a low around 31.
Saturday
A chance of rain and snow. Mostly cloudy, with a high near 48.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Grass Valley CA
 39.23°N 121.05°W (Elev. 2657 ft)
Last Update:
1:20 am PST Feb 15, 2026
Forecast Valid:
9am PST Feb 15, 2026-6pm PST Feb 21, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation