Mark Island Weather Forecast

    • 64
    • 71

    Increasing Clouds

    • 65
    • 70

    Partly Sunny

    • 65
    • 70

    Partly Sunny

    • 65
    • 68

    Chance Rain Showers

    • 65
    • 76

    Mostly Sunny

    • 65
    • 75

    Partly Sunny

Today 5 Aug Coastal Cumberland

Partly sunny. Warm with Highs in the mid 80s. Light and variable Winds, becoming south around 10 Mph with Gusts up to 20 Mph this afternoon.

Tonight 5 Aug Coastal Cumberland

Partly cloudy. Lows in the mid 60s. South Winds around 10 Mph in the Evening, becoming light and variable.

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Mark Island Temperature Statistics

August Temperature

Wiscasset Airport (18.6 miles)

  • Lowest 1 August, 2026

    59 °F

  • Average August

    72.8 °F

  • Highest 1 August, 2026

    84.9 °F

Climate (2021–2026)

Wiscasset Airport (18.6 miles)

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  • Average Low 2021–2026

    38.7 °F

  • Average 2021–2026

    48.5 °F

  • Average High 2021–2026

    58 °F
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