Diablo Lake Weather Forecast

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    Rain/Snow

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    • 42

    Rain/Snow

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    Rain

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    Rain

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    Chance Rain

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    Rain/Snow Likely

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    Rain/Snow Likely

Today 27 Jan Foothills and Valleys of the North Cascades

Mostly cloudy. Highs in the upper 40s to mid 50s. East wind to 10 Mph with Gusts to 20 Mph.

Tonight 27 Jan Foothills and Valleys of the North Cascades

Mostly cloudy. A slight chance of rain late in the evening. A chance of rain after Midnight, then rain likely in the morning. Rainfall Amounts a tenth to a quarter of an inch possible. Lows near 40. Southeast wind to 10 Mph increasing to 10 to 15 Mph after midnight. Gusts to 30 Mph.

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Diablo Lake Temperature Statistics

January Temperature

Arlington Municipal Airport (60.9 miles)

  • Lowest 25 January, 2026

    17.1 °F

  • Average January

    39.9 °F

  • Highest 13 January, 2026

    57.9 °F

Climate (2021–Present)

Arlington Municipal Airport (60.9 miles)

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  • Average Low 2021–2026

    42.5 °F

  • Average 2021–2026

    50.7 °F

  • Average High 2021–2026

    59.8 °F
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