Alta Sierra Airport Weather Forecast

    • 40
    • 58

    Decreasing Clouds

    • 41
    • 61

    Mostly Sunny

    • 43
    • 62

    Partly Sunny

    • 43
    • 64

    Mostly Sunny

    • 44
    • 64

    Mostly Sunny

    • 43
    • 66

    Mostly Sunny

Today 7 Dec Motherlode

Patchy dense fog early in the morning. Widespread fog. Locally dense late in the Morning, then patchy dense fog early in the afternoon. Partly cloudy. Highs 52 to 62. Light Winds.

Tonight 7 Dec Motherlode

Mostly clear. Lows 39 to 46. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Alta Sierra Airport Temperature Statistics

December Temperature

Nevada County Air Park (8.1 miles)

  • Lowest 4 December, 2025

    39.2 °F

  • Average December

    49.3 °F

  • Highest 1 December, 2025

    59 °F

Climate (2020–Present)

Nevada County Air Park (8.1 miles)

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  • Average Low 2020–2025

    51.9 °F

  • Average 2020–2025

    60.2 °F

  • Average High 2020–2025

    68.6 °F
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