Mark Island Weather Forecast

    • 64
    • 69

    Mostly Sunny

    • 67
    • 72

    Mostly Sunny

    • 65
    • 75

    Rain Showers Likely

    • 62
    • 72

    Partly Sunny

    • 62
    • 69

    Mostly Cloudy

    • 63
    • 70

    Partly Sunny

Today 23 Jul Coastal Cumberland

Mostly sunny. Highs in the upper 70s. Light and variable Winds, becoming south around 10 Mph with Gusts up to 20 Mph this afternoon.

Tonight 23 Jul Coastal Cumberland

Mostly clear. Lows in the lower 60s. South Winds around 10 Mph with Gusts up to 20 Mph in the Evening, becoming light and variable.

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Mark Island Temperature Statistics

July Temperature

Wiscasset Airport (18.6 miles)

  • Lowest 19 July, 2025

    52.6 °F

  • Average July

    72.4 °F

  • Highest 6 July, 2025

    90.6 °F

Climate (2020–Present)

Wiscasset Airport (18.6 miles)

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  • Average Low 2020–2025

    38.9 °F

  • Average 2020–2025

    48.5 °F

  • Average High 2020–2025

    57.8 °F
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