Grass Valley Weather Forecast

    • 29
    • 48

    Becoming Sunny

    • 29
    • 47

    Mostly Sunny

    • 36
    • 45

    Rain Showers Likely

    • 36
    • 42

    Rain Showers Likely

    • 33
    • 41

    Rain Showers Likely

    • 27
    • 41

    Chance Rain Showers

Today 6 Dec Motherlode

Patchy fog in the morning. Mostly cloudy with a chance of rain Showers in the Morning, then partly cloudy with a slight chance of rain Showers in the afternoon. Highs 45 to 55. Prevailing east Winds up to 10 Mph in the morning becoming light.

Tonight 6 Dec Motherlode

Clear. Patchy fog in the evening. Areas of frost after midnight. Lows 28 to 38. Prevailing north Winds up to 10 Mph shifting to the northeast after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grass Valley Temperature Statistics

December Temperature

Nevada County Air Park (3.1 miles)

  • Lowest 1 December, 2022

    32 °F
  • Average December

    40.1 °F
  • Highest 2 December, 2022

    48.2 °F

Climate (2011–Present)

Nevada County Air Park (3.1 miles)

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  • Average Low 2011–Present

    52.2 °F
  • Average 2011–Present

    60.8 °F
  • Average High 2011–Present

    69.1 °F
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