Langlois Lake Weather Forecast

    • 40
    • 63

    Decreasing Clouds

    • 44
    • 66

    Mostly Sunny

    • 51
    • 74

    Mostly Sunny

    • 55
    • 84

    Partly Sunny

    • 51
    • 72

    Chance Rain

    • 48
    • 69

    Partly Sunny

Today 30 May Foothills and Valleys of Central King County

Cloudy in the morning then becoming partly sunny. Highs in the lower to mid 60s. Light wind.

Tonight 30 May Foothills and Valleys of Central King County

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

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Langlois Lake Temperature Statistics

May Temperature

Renton Municipal Airport (18 miles)

  • Lowest 17 May, 2026

    43 °F

  • Average May

    59.8 °F

  • Highest 12 May, 2026

    82 °F

Climate (2021–Present)

Renton Municipal Airport (18 miles)

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  • Average Low 2021–2026

    47.5 °F

  • Average 2021–2026

    54.7 °F

  • Average High 2021–2026

    62.3 °F
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