Seguin Island Weather Forecast

    • 56
    • 63

    Isolated Thunderstorms

    • 52
    • 62

    Slight Chance Rain Showers

    • 50
    • 59

    Partly Sunny

    • 54
    • 62

    Partly Sunny

    • 50
    • 61

    Partly Sunny

    • 53
    • 59

    Chance Rain Showers

Today 4 Sep Coastal Washington

Mostly cloudy. Areas of fog in the morning. Isolated Showers in the Morning, then scattered Showers with isolated Thunderstorms in the afternoon. Highs in the lower 70s. North Winds around 5 Mph. Chance of rain 50 percent.

Tonight 4 Sep Coastal Washington

Cloudy with isolated Showers. Areas of fog. Near steady temperature in the upper 50s. Northeast Winds around 5 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Seguin Island Temperature Statistics

September Temperature

Bar Harbor, Hancock County-Bar Harbor Airport (41 miles)

  • Lowest 1 September, 2026

    48 °F

  • Average September

    59.4 °F

  • Highest 1 September, 2026

    72 °F

Climate (2021–2026)

Bar Harbor, Hancock County-Bar Harbor Airport (41 miles)

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  • Average Low 2021–2026

    38.2 °F

  • Average 2021–2026

    46.5 °F

  • Average High 2021–2026

    54.6 °F
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