Sammamish Weather Forecast

    • 58
    • 81

    Increasing Clouds

    • 57
    • 79

    Mostly Cloudy

    • 58
    • 81

    Partly Sunny

    • 56
    • 79

    Mostly Cloudy

    • 56
    • 78

    Partly Sunny

    • 57
    • 80

    Partly Sunny

    • 58
    • 81

    Mostly Cloudy

Today 15 Aug Eastside

Mostly cloudy until late afternoon then becoming mostly sunny. Highs near 80. Light wind.

Tonight 15 Aug Eastside

Partly cloudy in the evening then becoming mostly cloudy. Lows near 60. Light wind.

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  • Temperature Real-Time

Sammamish Temperature Statistics

August Temperature

Renton Municipal Airport (11.8 miles)

  • Lowest 3 August, 2026

    52 °F

  • Average August

    68.8 °F

  • Highest 6 August, 2026

    87.1 °F

Climate (2021–2026)

Renton Municipal Airport (11.8 miles)

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  • Average Low 2021–2026

    47.4 °F

  • Average 2021–2026

    54.6 °F

  • Average High 2021–2026

    62.2 °F
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