Little Grass Valley Weather Forecast

    • 42
    • 61

    Sunny

    • 43
    • 60

    Mostly Sunny

    • 46
    • 55

    Mostly Cloudy

    • 43
    • 53

    Rain Showers

    • 39
    • 46

    Rain Showers Likely

    • 40
    • 45

    Rain Showers

    • 39
    • 42

    Rain Showers

Today 13 Dec Western Plumas County/Lassen Park

Sunny. Highs 53 to 68. Light Winds.

Tonight 13 Dec Western Plumas County/Lassen Park

Clear. Lows 32 to 47. Light Winds.

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Little Grass Valley Temperature Statistics

December Temperature

Emigrant Gap, Blue Canyon Nyack Airport (33.6 miles)

  • Lowest 3 December, 2025

    34 °F

  • Average December

    49.9 °F

  • Highest 10 December, 2025

    68 °F

Climate (2020–Present)

Emigrant Gap, Blue Canyon Nyack Airport (33.6 miles)

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  • Average Low 2020–2025

    46.6 °F

  • Average 2020–2025

    53.3 °F

  • Average High 2020–2025

    60.3 °F
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