Little Grass Valley Weather Forecast

    • 32
    • 45

    Increasing Clouds

    • 33
    • 46

    Rain/Snow Likely

    • 33
    • 46

    Chance Rain/Snow

    • 37
    • 52

    Partly Sunny

    • 39
    • 55

    Mostly Cloudy

    • 40
    • 57

    Mostly Cloudy

    • 38
    • 53

    Chance Rain

Today 26 Jan Western Plumas County/Lassen Park

Mostly sunny in the morning then becoming partly cloudy. Highs 36 to 51 higher Elevations. 42 to 55 lower Elevations. Prevailing south Winds up to 10 Mph.

Tonight 26 Jan Western Plumas County/Lassen Park

Partly cloudy. Lows 23 to 38. Light Winds.

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Little Grass Valley Temperature Statistics

January Temperature

Emigrant Gap, Blue Canyon Nyack Airport (33.6 miles)

  • Lowest 8 January, 2026

    24.7 °F

  • Average January

    46.8 °F

  • Highest 13 January, 2026

    67.6 °F

Climate (2021–Present)

Emigrant Gap, Blue Canyon Nyack Airport (33.6 miles)

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  • Average Low 2021–2026

    46.7 °F

  • Average 2021–2026

    53.4 °F

  • Average High 2021–2026

    60.4 °F
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