National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heavy Rain and Mountain Snow Lingers in California; Winter Storm Impacting the Great Lakes and Northeast U.S.

An atmospheric river will wind down through today across California with lingering heavy rainfall, heavy mountain snow, and gusty winds. A wintry mix of freezing rain, sleet, and snow will cause hazardous travel conditions for the Great Lakes into the northern Mid-Atlantic and southern New England today through Saturday morning. Areas of tree damage and power outages are possible. Read More >

Current conditions at

Nevada County Air Park (KGOO)

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

Overcast

39°F

4°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 30.03 in (1016.93 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 27 Dec 04:35 AM PST
Extended Forecast for

4 Miles NNE Grass Valley CA

  • Overnight

    Overnight: A 20 percent chance of rain. Patchy fog. Otherwise, mostly cloudy, with a steady temperature around 40. Calm wind.

    Low: 40 °F

    Slight Chance
    Rain and
    Patchy Fog

  • Saturday

    Saturday: Patchy fog before 10am. Otherwise, mostly sunny, with a high near 47. Calm wind.

    High: 47 °F

    Patchy Fog
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Areas of fog between 7pm and 8pm. Otherwise, increasing clouds, with a low around 32. East northeast wind around 6 mph.

    Low: 32 °F

    Areas Fog
    then Partly
    Cloudy

  • Sunday

    Sunday: Partly sunny, then gradually becoming sunny, with a high near 50. North wind 3 to 5 mph.

    High: 50 °F

    Becoming
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 36. East northeast wind around 8 mph.

    Low: 36 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 37.

    Low: 37 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 57.

    High: 57 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear

Detailed Forecast

Overnight
A 20 percent chance of rain. Patchy fog. Otherwise, mostly cloudy, with a steady temperature around 40. Calm wind.
Saturday
Patchy fog before 10am. Otherwise, mostly sunny, with a high near 47. Calm wind.
Saturday Night
Areas of fog between 7pm and 8pm. Otherwise, increasing clouds, with a low around 32. East northeast wind around 6 mph.
Sunday
Partly sunny, then gradually becoming sunny, with a high near 50. North wind 3 to 5 mph.
Sunday Night
Mostly clear, with a low around 36. East northeast wind around 8 mph.
Monday
Sunny, with a high near 56.
Monday Night
Clear, with a low around 37.
Tuesday
Sunny, with a high near 57.
Tuesday Night
Mostly clear, with a low around 39.
Wednesday
Mostly sunny, with a high near 59.
Wednesday Night
A chance of rain. Partly cloudy, with a low around 41.
New Year's Day
A chance of rain. Partly sunny, with a high near 54.
Thursday Night
Rain likely. Mostly cloudy, with a low around 41.
Friday
Rain likely. Mostly cloudy, with a high near 49.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNE Grass Valley CA
 39.28°N 121.03°W (Elev. 2999 ft)
Last Update:
1:21 am PST Dec 27, 2025
Forecast Valid:
4am PST Dec 27, 2025-6pm PST Jan 2, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation