Alder Lake Park Weather Forecast

    • 42
    • 61

    Becoming Sunny

    • 48
    • 64

    Mostly Cloudy

    • 45
    • 58

    Rain Likely

    • 45
    • 61

    Mostly Cloudy

    • 47
    • 67

    Mostly Cloudy

    • 47
    • 65

    Partly Sunny

    • 47
    • 65

    Partly Sunny

Today 27 Sep Foothills and Valleys of Pierce and Southern King Counties

Mostly sunny. Highs near 70.

Tonight 27 Sep Foothills and Valleys of Pierce and Southern King Counties

Mostly clear. Lows in the lower to mid 40s. Light wind.

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Alder Lake Park Temperature Statistics

September Temperature

Fort Lewis / Gray U. S. Army Airfield (24.9 miles)

  • Lowest 19 September, 2026

    45.5 °F

  • Average September

    60 °F

  • Highest 9 September, 2026

    82.6 °F

Climate (2021–2026)

Fort Lewis / Gray U. S. Army Airfield (24.9 miles)

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  • Average Low 2021–2026

    42.8 °F

  • Average 2021–2026

    52.1 °F

  • Average High 2021–2026

    61.4 °F
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