Sammamish Weather Forecast

    • 50
    • 74

    Becoming Sunny

    • 53
    • 80

    Mostly Sunny

    • 56
    • 85

    Mostly Sunny

    • 56
    • 83

    Partly Sunny

    • 56
    • 80

    Partly Sunny

    • 57
    • 83

    Mostly Sunny

Today 12 Jul Eastside

Partly sunny in the morning then becoming sunny. Highs in the lower to mid 70s. Light wind becoming north to 10 Mph in the afternoon.

Tonight 12 Jul Eastside

Clear. Lows in the upper 40s to mid 50s. North wind around 10 Mph in the evening becoming light.

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Sammamish Temperature Statistics

July Temperature

Renton Municipal Airport (11.8 miles)

  • Lowest 1 July, 2026

    55 °F

  • Average July

    65.3 °F

  • Highest 6 July, 2026

    84 °F

Climate (2021–2026)

Renton Municipal Airport (11.8 miles)

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  • Average Low 2021–2026

    47.5 °F

  • Average 2021–2026

    54.7 °F

  • Average High 2021–2026

    62.3 °F
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