Alta Sierra Weather Forecast

    • 49
    • 60

    Rain Showers

    • 45
    • 56

    Rain Showers

    • 47
    • 58

    Rain Showers Likely

    • 48
    • 54

    Rain Showers

    • 47
    • 53

    Rain Showers

    • 47
    • 52

    Rain Showers

Today 16 Dec Motherlode

Patchy fog in the morning. Partly cloudy in the Morning, then mostly cloudy with a slight chance of rain Showers in the afternoon. Highs 54 to 66. Light Winds.

Tonight 16 Dec Motherlode

Mostly cloudy. A chance of rain Showers in the Evening, then rain Showers after midnight. Lows 47 to 53. 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 4 December, 2025

    39.2 °F

  • Average December

    55.4 °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

    51.9 °F

  • Average 2020–2025

    60.3 °F

  • Average High 2020–2025

    68.6 °F
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