Tibbetts Creek Valley Weather Forecast

    • 52
    • 73

    Becoming Sunny

    • 51
    • 74

    Partly Sunny

    • 51
    • 71

    Partly Sunny

    • 50
    • 68

    Mostly Cloudy

    • 50
    • 67

    Mostly Cloudy

    • 49
    • 64

    Slight Chance Rain

Today 19 Sep Eastside

Mostly cloudy in the morning then becoming mostly sunny. Areas of fog in the morning. Highs near 70. Light wind.

Tonight 19 Sep Eastside

Mostly clear. Lows in the lower to mid 50s. Light wind.

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  • Temperature Real-Time

Tibbetts Creek Valley Temperature Statistics

September Temperature

Renton Municipal Airport (7.5 miles)

  • Lowest 6 September, 2026

    51.1 °F

  • Average September

    61.8 °F

  • Highest 9 September, 2026

    79 °F

Climate (2021–2026)

Renton Municipal Airport (7.5 miles)

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  • Average Low 2021–2026

    47.4 °F

  • Average 2021–2026

    54.7 °F

  • Average High 2021–2026

    62.2 °F
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