Black Diamond Weather Forecast

    • 33
    • 52

    Slight Chance Rain/Snow

    • 40
    • 52

    Rain

    • 39
    • 52

    Rain

    • 34
    • 48

    Rain

    • 33
    • 51

    Chance Rain

    • 37
    • 58

    Mostly Cloudy

Today 22 Mar Foothills and Valleys of Pierce and Southern King Counties

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

Tonight 22 Mar Foothills and Valleys of Pierce and Southern King Counties

Mostly cloudy until early morning then becoming partly cloudy. Lows in the lower to mid 30s. Light wind.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Black Diamond Temperature Statistics

March Temperature

Renton Municipal Airport (16.2 miles)

  • Lowest 13 March, 2026

    32 °F

  • Average March

    46.6 °F

  • Highest 2 March, 2026

    59 °F

Climate (2021–Present)

Renton Municipal Airport (16.2 miles)

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  • Average Low 2021–2026

    47.4 °F

  • Average 2021–2026

    54.7 °F

  • Average High 2021–2026

    62.3 °F
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