Sammamish Weather Forecast

    • 43
    • 63

    Increasing Clouds

    • 47
    • 68

    Mostly Cloudy

    • 43
    • 70

    Partly Sunny

    • 37
    • 56

    Partly Sunny

    • 38
    • 58

    Mostly Sunny

    • 40
    • 61

    Mostly Sunny

    • 41
    • 62

    Partly Sunny

Today 4 Apr Eastside

Sunny. Highs in the lower to mid 60s. Light wind becoming north to 10 Mph in the afternoon.

Tonight 4 Apr Eastside

Partly cloudy in the evening then becoming mostly cloudy. Lows in the 40s. North wind to 10 Mph in the evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sammamish Temperature Statistics

April Temperature

Renton Municipal Airport (11.8 miles)

  • Lowest 1 April, 2026

    43 °F

  • Average April

    47.3 °F

  • Highest 2 April, 2026

    55 °F

Climate (2021–Present)

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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