Lost Lake Weather Forecast

    • 55
    • 71

    Partly Sunny

    • 49
    • 70

    Partly Sunny

    • 47
    • 66

    Sunny

    • 32
    • 56

    Breezy

    • 35
    • 47

    Mostly Sunny

    • 40
    • 53

    Mostly Sunny

    • 40
    • 56

    Mostly Sunny

Today 9 Sep Lassen-Eastern Plumas-Eastern Sierra Counties

Sunny. Highs 82 to 92. Light Winds becoming south around 10 Mph in the afternoon.

Tonight 9 Sep Lassen-Eastern Plumas-Eastern Sierra Counties

Clear in the evening then becoming partly cloudy. Lows 49 to 59. Light Winds.

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Lost Lake Temperature Statistics

September Temperature

Alturas (31.1 miles)

  • Lowest

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  • Average September

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  • Highest

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Climate (2021–2026)

Alturas (31.1 miles)

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  • Average Low 2021–2026

    33.2 °F

  • Average 2021–2026

    49.1 °F

  • Average High 2021–2026

    64.7 °F
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