Retreat Lake Weather Forecast

    • 50
    • 74

    Rain

    • 38
    • 59

    Chance Rain

    • 40
    • 58

    Mostly Cloudy

    • 39
    • 56

    Mostly Cloudy

    • 37
    • 57

    Partly Sunny

    • 41
    • 61

    Partly Sunny

    • 40
    • 55

    Chance Rain

Today 16 Oct Foothills and Valleys of Pierce and Southern King Counties

Partly sunny early in the afternoon then becoming sunny. Highs in the lower to mid 70s. Light wind.

Tonight 16 Oct Foothills and Valleys of Pierce and Southern King Counties

Partly cloudy until early Morning, then mostly cloudy with a chance of rain in the morning. Lows in the lower to mid 50s. Light wind becoming south to 10 Mph with Gusts to 25 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Retreat Lake Temperature Statistics

October Temperature

Renton Municipal Airport (16.2 miles)

  • Lowest 12 October, 2026

    39.9 °F

  • Average October

    56.8 °F

  • Highest 2 October, 2026

    73 °F

Climate (2021–2026)

Renton Municipal Airport (16.2 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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