Diablo Lake Weather Forecast

    • 53
    • 65

    Mostly Cloudy

    • 51
    • 61

    Chance Rain

    • 50
    • 61

    Chance Rain

    • 51
    • 64

    Mostly Cloudy

    • 50
    • 67

    Slight Chance Rain

    • 52
    • 72

    Mostly Sunny

    • 54
    • 74

    Mostly Sunny

Today 29 Jun Foothills and Valleys of the North Cascades

Mostly cloudy. A slight chance of rain in the morning. Highs near 70. Light wind.

Tonight 29 Jun Foothills and Valleys of the North Cascades

Partly cloudy in the Evening, then mostly cloudy with a slight chance of rain after midnight. Lows near 50. Southwest wind to 10 Mph in the evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Diablo Lake Temperature Statistics

June Temperature

Arlington Municipal Airport (60.9 miles)

  • Lowest 1 June, 2026

    39.9 °F

  • Average June

    61.3 °F

  • Highest 23 June, 2026

    87.1 °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

    59.9 °F
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