Diablo Lake Weather Forecast

    • 40
    • 55

    Increasing Clouds

    • 37
    • 46

    Rain/Snow

    • 35
    • 45

    Rain/Snow Likely

    • 32
    • 42

    Rain/Snow Likely

    • 30
    • 44

    Chance Rain

    • 34
    • 44

    Chance Rain

    • 35
    • 43

    Rain/Snow Likely

Today 6 Feb Foothills and Valleys of the North Cascades

Mostly sunny. Highs in the mid 50s to lower 60s. Light wind.

Tonight 6 Feb Foothills and Valleys of the North Cascades

Partly cloudy. A slight chance of rain late in the night. Lows in the 40s. Southeast wind to 10 Mph increasing to 10 to 20 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Diablo Lake Temperature Statistics

February Temperature

Arlington Municipal Airport (60.9 miles)

  • Lowest 4 February, 2026

    39.2 °F

  • Average February

    49.1 °F

  • Highest 4 February, 2026

    63 °F

Climate (2021–Present)

Arlington Municipal Airport (60.9 miles)

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  • Average Low 2021–2026

    42.5 °F

  • Average 2021–2026

    50.8 °F

  • Average High 2021–2026

    59.8 °F
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