Cumberland Weather Forecast

    • 50
    • 65

    Mostly Cloudy

    • 50
    • 66

    Rain

    • 49
    • 63

    Rain Likely

    • 48
    • 67

    Partly Sunny

    • 51
    • 74

    Mostly Sunny

    • 54
    • 79

    Mostly Sunny

Today 11 Sep Foothills and Valleys of Pierce and Southern King Counties

Mostly cloudy. Highs in the mid 60s to lower 70s. Light wind.

Tonight 11 Sep Foothills and Valleys of Pierce and Southern King Counties

Cloudy. Lows in the upper 40s to mid 50s. Light wind.

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Cumberland Temperature Statistics

September Temperature

Renton Municipal Airport (19.9 miles)

  • Lowest 6 September, 2026

    51.1 °F

  • Average September

    61.5 °F

  • Highest 8 September, 2026

    75 °F

Climate (2021–2026)

Renton Municipal Airport (19.9 miles)

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  • Average Low 2021–2026

    47.4 °F

  • Average 2021–2026

    54.7 °F

  • Average High 2021–2026

    62.2 °F
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