Port Madison Weather Forecast

    • 56
    • 75

    Chance Rain Showers

    • 57
    • 75

    Rain Likely

    • 56
    • 72

    Rain Likely

    • 56
    • 73

    Chance Rain

    • 56
    • 75

    Slight Chance Rain

    • 56
    • 75

    Slight Chance Rain

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    • 76

    Rain Likely

Today 7 Sep Eastern Kitsap County

Mostly cloudy with a chance of Showers. Highs in the upper 60s to mid 70s. South wind to 10 Mph.

Tonight 7 Sep Eastern Kitsap County

Partly cloudy with a slight chance of rain. Lows in the 50s. Southwest wind to 10 Mph in the evening becoming light.

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Port Madison Temperature Statistics

September Temperature

Boeing Field - King County International Airport (14.3 miles)

  • Lowest 1 September, 2025

    60.1 °F

  • Average September

    67.6 °F

  • Highest 3 September, 2025

    81 °F

Climate (2020–Present)

Boeing Field - King County International Airport (14.3 miles)

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  • Average Low 2020–2025

    47 °F

  • Average 2020–2025

    54.1 °F

  • Average High 2020–2025

    61.5 °F
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