Diamond Lake Weather Forecast

    • 52
    • 69

    Mostly Sunny

    • 47
    • 67

    Mostly Sunny

    • 42
    • 60

    Partly Sunny

    • 44
    • 57

    Partly Sunny

    • 46
    • 59

    Partly Sunny

    • 46
    • 60

    Partly Sunny

Today 30 Jun Cascades of Snohomish and Northern King Counties

Sunny. Freezing level near 14000 feet. Afternoon pass Temperatures around 80. Light wind.

Tonight 30 Jun Cascades of Snohomish and Northern King Counties

Mostly clear. Freezing level near 14000 feet. Lows in the mid 50s. Light wind.

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Diamond Lake Temperature Statistics

June Temperature

Arlington Municipal Airport (41.6 miles)

  • Lowest 2 June, 2025

    42.1 °F

  • Average June

    60.2 °F

  • Highest 8 June, 2025

    86 °F

Climate (2020–Present)

Arlington Municipal Airport (41.6 miles)

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  • Average Low 2020–2025

    42.3 °F

  • Average 2020–2025

    50.5 °F

  • Average High 2020–2025

    59.6 °F
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