Sammamish Weather Forecast

    • 25
    • 46

    Sunny

    • 25
    • 45

    Mostly Sunny

    • 32
    • 45

    Mostly Cloudy

    • 36
    • 47

    Mostly Cloudy

    • 38
    • 53

    Mostly Cloudy

    • 41
    • 52

    Chance Rain

    • 40
    • 52

    Chance Rain

Today 23 Jan Eastside

Sunny. Highs in the mid to upper 40s. Light wind.

Tonight 23 Jan Eastside

Clear. Lows in the mid 20s to lower 30s. Light wind.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sammamish Temperature Statistics

January Temperature

Renton Municipal Airport (11.8 miles)

  • Lowest 21 January, 2026

    28 °F

  • Average January

    43.8 °F

  • Highest 13 January, 2026

    59 °F

Climate (2021–Present)

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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