Alta Sierra Airport Weather Forecast

    • 43
    • 66

    Mostly Sunny

    • 45
    • 64

    Partly Sunny

    • 50
    • 62

    Rain Showers

    • 44
    • 56

    Rain Showers Likely

    • 46
    • 56

    Rain Showers

    • 46
    • 52

    Rain Showers

Today 14 Dec Motherlode

Sunny. Areas of fog. Locally dense late in the morning. Highs 53 to 68. Light Winds.

Tonight 14 Dec Motherlode

Mostly clear. Patchy dense fog in the evening. Areas of dense fog. Locally dense after midnight. Lows 41 to 52. 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

    54.7 °F

  • Highest 11 December, 2025

    71.6 °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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