Ashurst Lake Weather Forecast

    • 43
    • 73

    Mostly Sunny

    • 44
    • 76

    Mostly Sunny

    • 44
    • 75

    Partly Sunny

    • 35
    • 64

    Mostly Sunny

    • 39
    • 65

    Mostly Sunny

    • 34
    • 61

    Mostly Sunny

    • 36
    • 64

    Sunny

Today 22 Sep Lassen-Eastern Plumas-Eastern Sierra Counties

Mostly sunny. Slight chance of Showers in the afternoon. Highs 75 to 85. Light Winds becoming west around 10 Mph in the afternoon.

Tonight 22 Sep Lassen-Eastern Plumas-Eastern Sierra Counties

Clear. Lows 39 to 49. West Winds around 10 Mph in the evening becoming light.

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Ashurst Lake Temperature Statistics

September Temperature

Alturas (54.7 miles)

  • Lowest 14 September, 2026

    28.7 °F

  • Average September

    59.4 °F

  • Highest 10 September, 2026

    85.6 °F

Climate (2021–2026)

Alturas (54.7 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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