Black Diamond Lake Weather Forecast

    • 33
    • 47

    Rain

    • 31
    • 51

    Partly Sunny

    • 33
    • 49

    Partly Sunny

    • 36
    • 48

    Rain Likely

    • 34
    • 47

    Rain Likely

    • 32
    • 44

    Rain Likely

Today 9 Feb Foothills and Valleys of Pierce and Southern King Counties

Rain at Times in the Morning, then a chance of rain late in the morning. Rain likely in the afternoon. Rainfall Amounts a tenth to a quarter of an inch possible. Highs in the mid 40s to lower 50s. Light wind becoming south around 10 Mph in the afternoon.

Tonight 9 Feb Foothills and Valleys of Pierce and Southern King Counties

Mostly cloudy with a slight chance of rain in the Evening, then partly cloudy after midnight. Patchy fog in the morning. Lows in the lower to mid 30s. Light wind.

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  • Temperature Forecast NOAA

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Black Diamond Lake Temperature Statistics

February Temperature

Renton Municipal Airport (16.2 miles)

  • Lowest 6 February, 2026

    37.9 °F

  • Average February

    49 °F

  • Highest 4 February, 2026

    60.1 °F

Climate (2021–Present)

Renton Municipal Airport (16.2 miles)

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  • Average Low 2021–2026

    47.4 °F

  • Average 2021–2026

    54.6 °F

  • Average High 2021–2026

    62.3 °F
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