Buckhorn Reservoir Weather Forecast

    • 54
    • 81

    Mostly Cloudy

    • 49
    • 73

    Mostly Cloudy

    • 48
    • 73

    Partly Sunny

    • 46
    • 75

    Mostly Sunny

    • 49
    • 80

    Mostly Sunny

    • 48
    • 79

    Chance Rain Showers

    • 46
    • 72

    Partly Sunny

Today 18 Sep Lassen-Eastern Plumas-Eastern Sierra Counties

Mostly cloudy. Highs 79 to 89. Light Winds becoming southeast around 10 Mph in the afternoon.

Tonight 18 Sep Lassen-Eastern Plumas-Eastern Sierra Counties

Cloudy. Lows 48 to 58. Southwest Winds 10 to 15 Mph.

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Buckhorn Reservoir Temperature Statistics

September Temperature

Alturas (49.7 miles)

  • Lowest 15 September, 2025

    35.1 °F

  • Average September

    66.3 °F

  • Highest 1 September, 2025

    91 °F

Climate (2020–Present)

Alturas (49.7 miles)

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  • Average Low 2020–2025

    33 °F

  • Average 2020–2025

    49.1 °F

  • Average High 2020–2025

    64.4 °F
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