Dumas Bay Weather Forecast

    • 55
    • 69

    Increasing Clouds

    • 53
    • 68

    Mostly Cloudy

    • 55
    • 70

    Mostly Sunny

    • 56
    • 74

    Mostly Sunny

    • 54
    • 71

    Mostly Cloudy

    • 52
    • 68

    Mostly Cloudy

    • 53
    • 69

    Partly Sunny

Today 6 Sep Lowlands of Pierce and Southern King Counties

Mostly sunny. Highs in the mid 60s to lower 70s. Light wind becoming north to 10 Mph in the afternoon.

Tonight 6 Sep Lowlands of Pierce and Southern King Counties

Partly cloudy. Lows in the 50s. Light wind becoming south to 10 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Dumas Bay Temperature Statistics

September Temperature

Seattle, Seattle-Tacoma International Airport (8.1 miles)

  • Lowest 4 September, 2026

    53.1 °F

  • Average September

    61.1 °F

  • Highest 2 September, 2026

    70.6 °F

Climate (2021–2026)

Seattle, Seattle-Tacoma International Airport (8.1 miles)

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  • Average Low 2021–2026

    46.6 °F

  • Average 2021–2026

    53.5 °F

  • Average High 2021–2026

    61.3 °F
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