Steilacoom Weather Forecast

    • 52
    • 75

    Becoming Sunny

    • 52
    • 74

    Mostly Sunny

    • 50
    • 72

    Partly Sunny

    • 49
    • 68

    Mostly Cloudy

    • 47
    • 59

    Rain Likely

    • 49
    • 63

    Chance Rain

Today 21 May Lowlands of Pierce and Southern King Counties

Sunny. Highs in the upper 60s to mid 70s. Light wind becoming north to 10 Mph in the afternoon.

Tonight 21 May Lowlands of Pierce and Southern King Counties

Mostly clear. Lows in the upper 40s to mid 50s. North wind to 10 Mph in the evening becoming light.

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Steilacoom Temperature Statistics

May Temperature

Fort Lewis / Gray U. S. Army Airfield (4.3 miles)

  • Lowest 17 May, 2026

    35.1 °F

  • Average May

    58.1 °F

  • Highest 3 May, 2026

    83.7 °F

Climate (2021–Present)

Fort Lewis / Gray U. S. Army Airfield (4.3 miles)

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  • Average Low 2021–2026

    42.9 °F

  • Average 2021–2026

    52.1 °F

  • Average High 2021–2026

    61.4 °F
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