Lost Lake Weather Forecast

    • 23
    • 29

    Partly Sunny

    • 31
    • 37

    Mostly Cloudy

    • 31
    • 37

    Mostly Cloudy

    • 30
    • 37

    Chance Rain/Snow

    • 30
    • 40

    Mostly Cloudy

    • 32
    • 42

    Partly Sunny

    • 35
    • 44

    Partly Sunny

Today 3 Dec Lassen-Eastern Plumas-Eastern Sierra Counties

Partly cloudy. Highs 41 to 46. East Winds 10 to 15 Mph.

Tonight 3 Dec Lassen-Eastern Plumas-Eastern Sierra Counties

Partly cloudy in the evening then becoming clear. Lows 16 to 26. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lost Lake Temperature Statistics

December Temperature

Alturas (31.1 miles)

  • Lowest 1 December, 2025

    15.1 °F

  • Average December

    34.8 °F

  • Highest 1 December, 2025

    51.1 °F

Climate (2020–Present)

Alturas (31.1 miles)

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  • Average Low 2020–2025

    33.2 °F

  • Average 2020–2025

    49.2 °F

  • Average High 2020–2025

    64.3 °F
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