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National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
7-Day Forecast 39.23°N 121.08°W (Text-Only)
NWS Forecast for: Grass Valley CA
Issued by: National Weather Service Sacramento, CA
Last Update: 1:21 pm PST Dec 4, 2025		Print

  • Tonight

    Tonight: Clear, with a steady temperature around 42. Calm wind.

    Low: 42 °F

    Clear


  • Friday

    Friday: Sunny, with a high near 59. Light and variable wind.

    High: 59 °F

    Sunny


  • Friday
    Night

    Friday Night: Patchy fog. Otherwise, mostly clear, with a low around 39. Calm wind.

    Low: 39 °F

    Patchy Fog


  • Saturday

    Saturday: Patchy fog before 9am. Otherwise, sunny, with a high near 59. Calm wind.

    High: 59 °F

    Patchy Fog
    then Sunny

  • Saturday
    Night

    Saturday Night: Patchy fog between 9pm and midnight. Otherwise, mostly clear, with a low around 40. Calm wind.

    Low: 40 °F

    Patchy Fog
    then Mostly
    Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 59.

    High: 59 °F

    Mostly Sunny


  • Sunday
    Night

    Sunday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear


  • Monday

    Monday: Sunny, with a high near 61.

    High: 61 °F

    Sunny


  • Monday
    Night

    Monday Night: Partly cloudy, with a low around 42.

    Low: 42 °F

    Partly Cloudy


    • Tonight: Clear, with a steady temperature around 42. Calm wind.

    Friday: Sunny, with a high near 59. Light and variable wind.

    Friday Night: Patchy fog. Otherwise, mostly clear, with a low around 39. Calm wind.

    Saturday: Patchy fog before 9am. Otherwise, sunny, with a high near 59. Calm wind.

    Saturday Night: Patchy fog between 9pm and midnight. Otherwise, mostly clear, with a low around 40. Calm wind.

    Sunday: Mostly sunny, with a high near 59.

    Sunday Night: Mostly clear, with a low around 40.

    Monday: Sunny, with a high near 61.

    Monday Night: Partly cloudy, with a low around 42.

    Tuesday: Mostly sunny, with a high near 63.

    Tuesday Night: Partly cloudy, with a low around 44.

    Wednesday: Mostly sunny, with a high near 64.

    Wednesday Night: Mostly clear, with a low around 44.

    Thursday: Sunny, with a high near 64.


    Grass Valley CA
     39.23°N 121.08°W (Elev. 2598 ft)

    Visit your local NWS office at: https://www.weather.gov/sto