Diablo Lake Weather Forecast

    • 61
    • 80

    Areas Smoke

    • 59
    • 77

    Partly Sunny

    • 59
    • 78

    Mostly Sunny

    • 63
    • 84

    Mostly Sunny

    • 60
    • 80

    Chance Rain

    • 57
    • 70

    Chance Rain

Today 17 Aug Foothills and Valleys of the North Cascades

Mostly sunny. Patchy fog in the morning. Patchy smoke through the day. Highs in the mid 70s to lower 80s. Light wind.

Tonight 17 Aug Foothills and Valleys of the North Cascades

Partly cloudy in the evening then becoming mostly cloudy. Patchy smoke. Lows in the mid to upper 50s. Light wind.

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  • Temperature Real-Time

Diablo Lake Temperature Statistics

August Temperature

Arlington Municipal Airport (60.9 miles)

  • Lowest 3 August, 2026

    46.4 °F

  • Average August

    64.2 °F

  • Highest 6 August, 2026

    84.9 °F

Climate (2021–2026)

Arlington Municipal Airport (60.9 miles)

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  • Average Low 2021–2026

    42.5 °F

  • Average 2021–2026

    50.8 °F

  • Average High 2021–2026

    59.8 °F
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