Alta Sierra Weather Forecast

    • 43
    • 59

    Increasing Clouds

    • 46
    • 55

    Rain

    • 49
    • 54

    Rain

    • 43
    • 53

    Rain

    • 40
    • 48

    Rain

    • 40
    • 50

    Rain Likely

Today 30 Dec Motherlode

Sunny. Widespread fog. Locally dense late in the morning. Highs 53 to 63. Light Winds.

Tonight 30 Dec Motherlode

Mostly cloudy. Lows 42 to 49. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Alta Sierra Temperature Statistics

December Temperature

Nevada County Air Park (6.2 miles)

  • Lowest 28 December, 2025

    35.6 °F

  • Average December

    52 °F

  • Highest 11 December, 2025

    71.6 °F

Climate (2020–Present)

Nevada County Air Park (6.2 miles)

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  • Average Low 2020–2025

    52 °F

  • Average 2020–2025

    60.3 °F

  • Average High 2020–2025

    68.7 °F
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