Alder Lake Park Weather Forecast

    • 49
    • 73

    Becoming Sunny

    • 48
    • 68

    Mostly Sunny

    • 49
    • 72

    Partly Sunny

    • 54
    • 71

    Chance Rain

    • 48
    • 65

    Chance Rain

    • 50
    • 70

    Chance Rain

    • 53
    • 70

    Slight Chance Rain

Today 17 Sep Foothills and Valleys of Pierce and Southern King Counties

Sunny. Highs in the mid to upper 70s. Light wind.

Tonight 17 Sep Foothills and Valleys of Pierce and Southern King Counties

Partly cloudy. Lows in the lower to mid 50s. Light wind.

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Alder Lake Park Temperature Statistics

September Temperature

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

  • Lowest 13 September, 2025

    49.1 °F

  • Average September

    64.7 °F

  • Highest 3 September, 2025

    85.8 °F

Climate (2020–Present)

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

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  • Average Low 2020–2025

    42.7 °F

  • Average 2020–2025

    51.9 °F

  • Average High 2020–2025

    61.2 °F
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