Diablo Lake Weather Forecast

    • 50
    • 64

    Mostly Cloudy

    • 51
    • 73

    Mostly Sunny

    • 52
    • 76

    Mostly Sunny

    • 50
    • 67

    Partly Sunny

    • 48
    • 64

    Partly Sunny

    • 49
    • 66

    Partly Sunny

Today 2 Oct Foothills and Valleys of the North Cascades

Partly sunny. A slight chance of rain early in the afternoon. Highs in the mid 60s to lower 70s. Light wind.

Tonight 2 Oct Foothills and Valleys of the North Cascades

Partly cloudy in the evening then becoming mostly cloudy. Lows near 50. Light wind.

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Diablo Lake Temperature Statistics

October Temperature

Arlington Municipal Airport (60.9 miles)

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  • Average October

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Climate (2021–2026)

Arlington Municipal Airport (60.9 miles)

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  • Average Low 2021–2026

    42.5 °F

  • Average 2021–2026

    50.9 °F

  • Average High 2021–2026

    59.9 °F
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