Alder Lake Park Weather Forecast

    • 51
    • 77

    Increasing Clouds

    • 46
    • 68

    Mostly Cloudy

    • 47
    • 63

    Chance Rain

    • 47
    • 60

    Rain Showers Likely

    • 46
    • 65

    Partly Sunny

    • 48
    • 68

    Partly Sunny

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

Mostly sunny. Patchy fog in the morning. Highs in the mid 70s to lower 80s. Light wind.

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

Mostly 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 5 September, 2026

    46.4 °F

  • Average September

    61 °F

  • Highest 6 September, 2026

    75.4 °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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