Diablo Lake Weather Forecast

    • 43
    • 57

    Increasing Clouds

    • 43
    • 50

    Rain

    • 37
    • 48

    Rain

    • 35
    • 46

    Chance Rain/Snow

    • 33
    • 47

    Chance Snow

    • 33
    • 46

    Chance Snow

    • 31
    • 46

    Partly Sunny

Today 13 Nov Foothills and Valleys of the North Cascades

Mostly cloudy. A slight chance of rain in the late morning and early afternoon. A chance of rain late in the afternoon. Highs in the upper 50s to mid 60s. Southeast wind 10 to 15 Mph decreasing to 10 Mph or less in the afternoon.

Tonight 13 Nov Foothills and Valleys of the North Cascades

Rain at Times in the Evening, then a chance of rain late in the evening. A slight chance of rain after midnight. Rainfall Amounts a tenth to a quarter of an inch possible. Lows in the mid to upper 40s. Southeast wind 10 to 15 Mph with Gusts to 30 Mph.

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Diablo Lake Temperature Statistics

November Temperature

Arlington Municipal Airport (60.9 miles)

  • Lowest 2 November, 2026

    27 °F

  • Average November

    49.6 °F

  • Highest 11 November, 2026

    70 °F

Climate (2021–2026)

Arlington Municipal Airport (60.9 miles)

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  • Average Low 2021–2026

    42.5 °F

  • Average 2021–2026

    50.9 °F

  • Average High 2021–2026

    60 °F
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