Diablo Lake Weather Forecast

    • 60
    • 84

    Smoke

    • 61
    • 85

    Mostly Sunny

    • 62
    • 84

    Mostly Sunny

    • 57
    • 79

    Mostly Sunny

    • 57
    • 76

    Mostly Sunny

    • 57
    • 76

    Mostly Sunny

Today 5 Aug Foothills and Valleys of the North Cascades

Sunny. Areas of smoke. Highs in the 80s. Light wind.

Tonight 5 Aug Foothills and Valleys of the North Cascades

Mostly clear. Areas of smoke. Lows in the mid 50s to lower 60s. Light wind.

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Diablo Lake Temperature Statistics

August Temperature

Arlington Municipal Airport (60.9 miles)

  • Lowest 3 August, 2026

    46.4 °F

  • Average August

    60.9 °F

  • Highest 3 August, 2026

    75 °F

Climate (2021–2026)

Arlington Municipal Airport (60.9 miles)

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  • Average Low 2021–2026

    42.6 °F

  • Average 2021–2026

    50.9 °F

  • Average High 2021–2026

    59.8 °F
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