Swanson Airport Weather Forecast

    • 49
    • 75

    Becoming Sunny

    • 54
    • 81

    Mostly Sunny

    • 59
    • 89

    Sunny

    • 60
    • 91

    Mostly Sunny

    • 59
    • 90

    Mostly Sunny

    • 58
    • 87

    Mostly Sunny

Today 20 Aug Foothills and Valleys of Pierce and Southern King Counties

Mostly cloudy in the morning then becoming mostly sunny. Highs in the 70s. Light wind.

Tonight 20 Aug Foothills and Valleys of Pierce and Southern King Counties

Mostly clear. Lows near 50. Light wind.

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Swanson Airport Temperature Statistics

August Temperature

Fort Lewis / Gray U. S. Army Airfield (21.7 miles)

  • Lowest 8 August, 2025

    48.9 °F

  • Average August

    67.7 °F

  • Highest 12 August, 2025

    93.7 °F

Climate (2020–Present)

Fort Lewis / Gray U. S. Army Airfield (21.7 miles)

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  • Average Low 2020–2025

    42.6 °F

  • Average 2020–2025

    51.8 °F

  • Average High 2020–2025

    61.2 °F
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