Cougar Mountain Weather Forecast

    • 39
    • 46

    Chance Rain

    • 36
    • 45

    Chance Rain

    • 34
    • 48

    Partly Sunny

    • 35
    • 51

    Mostly Sunny

    • 37
    • 54

    Partly Sunny

    • 45
    • 54

    Mostly Cloudy

    • 42
    • 49

    Rain

Today 26 Feb Foothills and Valleys of Central King County

Mostly cloudy with a chance of rain. Highs in the mid 40s to lower 50s. South wind 10 to 15 Mph becoming southwest in the afternoon. Gusts to 30 Mph.

Tonight 26 Feb Foothills and Valleys of Central King County

Mostly cloudy with a chance of rain. Lows near 40. South wind 10 to 15 Mph. Gusts to 25 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Cougar Mountain Temperature Statistics

February Temperature

Renton Municipal Airport (5.6 miles)

  • Lowest 20 February, 2026

    28 °F

  • Average February

    44.6 °F

  • Highest 4 February, 2026

    60.1 °F

Climate (2021–Present)

Renton Municipal Airport (5.6 miles)

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  • Average Low 2021–2026

    47.4 °F

  • Average 2021–2026

    54.7 °F

  • Average High 2021–2026

    62.3 °F
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