Alkali Lake Weather Forecast

    • 46
    • 78

    Mostly Cloudy

    • 43
    • 77

    Mostly Sunny

    • 45
    • 79

    Partly Sunny

    • 45
    • 78

    Partly Sunny

    • 38
    • 68

    Partly Sunny

    • 39
    • 68

    Partly Sunny

Today 21 Sep Modoc County

Mostly cloudy. Highs in the mid 70s to lower 80s. Northeast Winds around 5 Mph shifting to the north late in the afternoon.

Tonight 21 Sep Modoc County

Mostly cloudy in the evening then becoming partly cloudy. Lows in the mid 40s to lower 50s. Northwest Winds around 5 Mph.

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Alkali Lake Temperature Statistics

September Temperature

Alturas (16.2 miles)

  • Lowest 14 September, 2026

    28.7 °F

  • Average September

    58 °F

  • Highest 10 September, 2026

    85.6 °F

Climate (2021–2026)

Alturas (16.2 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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