Cougar Mountain Weather Forecast

    • 38
    • 47

    Slight Chance Rain

    • 33
    • 45

    Slight Chance Rain

    • 35
    • 43

    Mostly Cloudy

    • 39
    • 43

    Rain Likely

    • 37
    • 44

    Chance Rain

    • 38
    • 44

    Mostly Cloudy

Today 28 Nov Foothills and Valleys of Central King County

Mostly sunny. Patchy fog until late afternoon. Highs in the lower to mid 50s. Light wind.

Tonight 28 Nov Foothills and Valleys of Central King County

Partly cloudy in the evening then becoming mostly cloudy. Lows in the mid to upper 30s. Light wind.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Cougar Mountain Temperature Statistics

November Temperature

Renton Municipal Airport (5.6 miles)

  • Lowest 19 November, 2025

    37.9 °F

  • Average November

    50.1 °F

  • Highest 1 November, 2025

    62.1 °F

Climate (2020–Present)

Renton Municipal Airport (5.6 miles)

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  • Average Low 2020–2025

    47.3 °F

  • Average 2020–2025

    54.6 °F

  • Average High 2020–2025

    62.3 °F
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