Black Diamond Weather Forecast

    • 53
    • 79

    Increasing Clouds

    • 51
    • 72

    Gradual Clearing

    • 52
    • 73

    Mostly Cloudy

    • 52
    • 76

    Mostly Sunny

    • 55
    • 80

    Sunny

    • 57
    • 84

    Mostly Sunny

    • 58
    • 83

    Partly Sunny

Today 24 Jul Foothills and Valleys of Pierce and Southern King Counties

Mostly sunny. Patchy fog in the morning. Highs in the mid 70s to lower 80s. Light wind becoming west around 10 Mph in the afternoon.

Tonight 24 Jul Foothills and Valleys of Pierce and Southern King Counties

Mostly clear until early morning then becoming mostly cloudy. Lows in the 50s. West wind around 10 Mph in the evening becoming light.

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Black Diamond Temperature Statistics

July Temperature

Renton Municipal Airport (16.2 miles)

  • Lowest 5 July, 2025

    55.4 °F

  • Average July

    71.2 °F

  • Highest 16 July, 2025

    93.2 °F

Climate (2020–Present)

Renton Municipal Airport (16.2 miles)

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  • Average Low 2020–2025

    47.2 °F

  • Average 2020–2025

    54.5 °F

  • Average High 2020–2025

    62.2 °F
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