Black Diamond Weather Forecast

    • 54
    • 82

    Mostly Sunny

    • 52
    • 78

    Partly Sunny

    • 54
    • 78

    Partly Sunny

    • 55
    • 78

    Partly Sunny

    • 55
    • 77

    Partly Sunny

    • 57
    • 82

    Mostly Sunny

Today 8 Aug Foothills and Valleys of Pierce and Southern King Counties

Partly sunny until late afternoon then becoming sunny. Highs in the lower to mid 80s. Light wind.

Tonight 8 Aug Foothills and Valleys of Pierce and Southern King Counties

Mostly clear. Lows in the 50s. Light wind.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Black Diamond Temperature Statistics

August Temperature

Renton Municipal Airport (16.2 miles)

  • Lowest 3 August, 2026

    52 °F

  • Average August

    68.1 °F

  • Highest 6 August, 2026

    87.1 °F

Climate (2021–2026)

Renton Municipal Airport (16.2 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    47.4 °F

  • Average 2021–2026

    54.7 °F

  • Average High 2021–2026

    62.2 °F
Get WillyWeather+ to remove ads