Joint Base Lewis - McChord Weather Forecast

    • 48
    • 65

    Mostly Cloudy

    • 47
    • 69

    Decreasing Clouds

    • 50
    • 76

    Mostly Sunny

    • 51
    • 76

    Partly Sunny

    • 48
    • 74

    Partly Sunny

    • 48
    • 69

    Chance Rain

    • 44
    • 60

    Chance Rain

Today 19 May Lowlands of Pierce and Southern King Counties

Mostly cloudy. Highs in the upper 50s to mid 60s. Light wind.

Tonight 19 May Lowlands of Pierce and Southern King Counties

Mostly cloudy. A slight chance of rain in the evening. Lows near 50. West wind to 10 Mph in the evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Joint Base Lewis - McChord Temperature Statistics

May Temperature

Fort Lewis / Gray U. S. Army Airfield (0.6 miles)

  • Lowest 17 May, 2026

    35.1 °F

  • Average May

    58.2 °F

  • Highest 3 May, 2026

    83.7 °F

Climate (2021–Present)

Fort Lewis / Gray U. S. Army Airfield (0.6 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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