Sycamore Weather Forecast

    • 54
    • 76

    Increasing Clouds

    • 56
    • 74

    Chance Rain

    • 53
    • 69

    Rain

    • 51
    • 66

    Rain Showers Likely

    • 51
    • 69

    Chance Rain

    • 53
    • 71

    Slight Chance Rain

    • 55
    • 72

    Slight Chance Rain

Today 31 Aug Eastside

Mostly sunny. Highs in the 70s. Light wind becoming north to 10 Mph in the afternoon.

Tonight 31 Aug Eastside

Mostly cloudy in the evening then becoming partly cloudy. Lows in the 50s. Light wind.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sycamore Temperature Statistics

August Temperature

Renton Municipal Airport (8.7 miles)

  • Lowest 3 August, 2026

    52 °F

  • Average August

    68.3 °F

  • Highest 6 August, 2026

    87.1 °F

Climate (2021–2026)

Renton Municipal Airport (8.7 miles)

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  • Average Low 2021–2026

    47.5 °F

  • Average 2021–2026

    54.7 °F

  • Average High 2021–2026

    62.2 °F
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