Sammamish Weather Forecast

    • 46
    • 60

    Rain Showers

    • 46
    • 62

    Rain Showers

    • 46
    • 60

    Rain Showers

    • 45
    • 66

    Chance Rain Showers

    • 46
    • 67

    Slight Chance Rain Showers

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    • 67

    Chance Rain Showers

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    • 65

    Partly Sunny

Today 18 May Eastside

Partly sunny. A chance of Showers in the Morning, then a slight chance of Showers in the afternoon. Highs near 60. South wind around 10 Mph in the morning becoming light.

Tonight 18 May Eastside

Mostly cloudy. A chance of Showers in the morning. Lows in the mid to upper 40s. Light wind becoming south around 10 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sammamish Temperature Statistics

May Temperature

Renton Municipal Airport (11.8 miles)

  • Lowest 4 May, 2025

    41.6 °F

  • Average May

    56.5 °F

  • Highest 6 May, 2025

    78.7 °F

Climate (2020–Present)

Renton Municipal Airport (11.8 miles)

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  • Average Low 2020–2025

    47.2 °F

  • Average 2020–2025

    54.3 °F

  • Average High 2020–2025

    62 °F
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