Alder Lake Park Weather Forecast

    • 44
    • 61

    Rain Showers Likely

    • 45
    • 63

    Chance Rain Showers

    • 47
    • 67

    Chance Rain Showers

    • 50
    • 70

    Partly Sunny

    • 49
    • 69

    Mostly Cloudy

    • 50
    • 70

    Partly Sunny

Today 3 Sep Foothills and Valleys of Pierce and Southern King Counties

Showers likely through the day. A chance of Thunderstorms in the afternoon. Rainfall Amounts less than a tenth of an inch Likely, except higher Amounts possible in Thunderstorms. Highs in the mid to upper 60s. Southeast wind to 10 Mph becoming south in the afternoon.

Tonight 3 Sep Foothills and Valleys of Pierce and Southern King Counties

Mostly cloudy with a slight chance of Showers in the Evening, then mostly cloudy after midnight. Lows in the mid 40s to lower 50s. Light wind.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Alder Lake Park Temperature Statistics

September Temperature

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

  • Lowest 1 September, 2026

    51.1 °F

  • Average September

    61.5 °F

  • Highest 1 September, 2026

    68 °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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