Cougar Mountain Weather Forecast

    • 36
    • 45

    Chance Rain

    • 34
    • 48

    Partly Sunny

    • 35
    • 51

    Mostly Sunny

    • 37
    • 54

    Partly Sunny

    • 45
    • 54

    Mostly Cloudy

    • 42
    • 49

    Rain

Today 27 Feb Foothills and Valleys of Central King County

Mostly cloudy. A chance of rain in the Morning, then a slight chance of rain early in the afternoon. A chance of rain late in the afternoon. Highs in the mid 40s to lower 50s. South wind 10 to 15 Mph becoming southwest in the afternoon.

Tonight 27 Feb Foothills and Valleys of Central King County

Mostly cloudy. A chance of rain in the evening. Patchy fog after midnight. Lows in the mid to upper 30s. Light wind.

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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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