Duvall Park Weather Forecast

    • 51
    • 70

    Increasing Clouds

    • 48
    • 67

    Mostly Cloudy

    • 47
    • 66

    Mostly Cloudy

    • 48
    • 61

    Rain Likely

    • 43
    • 60

    Rain Showers Likely

    • 44
    • 62

    Mostly Cloudy

    • 45
    • 63

    Chance Rain

Today 21 Sep Foothills and Valleys of Snohomish and Northern King Counties

Mostly cloudy with a chance of rain. Highs in the lower to mid 60s.

Tonight 21 Sep Foothills and Valleys of Snohomish and Northern King Counties

Partly cloudy in the evening then becoming mostly cloudy. Lows in the upper 40s to mid 50s. Light wind.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Duvall Park Temperature Statistics

September Temperature

Renton Municipal Airport (18.6 miles)

  • Lowest 6 September, 2026

    51.1 °F

  • Average September

    61.6 °F

  • Highest 9 September, 2026

    79 °F

Climate (2021–2026)

Renton Municipal Airport (18.6 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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