Wilderness Lake Weather Forecast

    • 43
    • 64

    Increasing Clouds

    • 50
    • 66

    Rain Likely

    • 47
    • 61

    Rain

    • 45
    • 64

    Partly Sunny

    • 49
    • 68

    Mostly Cloudy

    • 48
    • 67

    Partly Sunny

    • 48
    • 67

    Partly Sunny

Today 27 Sep Foothills and Valleys of Pierce and Southern King Counties

Mostly sunny. Highs near 70.

Tonight 27 Sep Foothills and Valleys of Pierce and Southern King Counties

Mostly clear. Lows in the lower to mid 40s. Light wind.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Wilderness Lake Temperature Statistics

September Temperature

Renton Municipal Airport (11.8 miles)

  • Lowest 6 September, 2026

    51.1 °F

  • Average September

    61.1 °F

  • Highest 9 September, 2026

    79 °F

Climate (2021–2026)

Renton Municipal Airport (11.8 miles)

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  • Average Low 2021–2026

    47.4 °F

  • Average 2021–2026

    54.7 °F

  • Average High 2021–2026

    62.2 °F
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