Mackworth Island Weather Forecast

    • 54
    • 63

    Mostly Cloudy

    • 55
    • 63

    Partly Sunny

    • 59
    • 73

    Partly Sunny

    • 62
    • 72

    Partly Sunny

    • 63
    • 69

    Chance Rain Showers

    • 61
    • 68

    Chance Rain Showers

Today 20 Aug Coastal Cumberland

Mostly cloudy. A slight chance of Showers this morning. Highs in the upper 60s. Light and variable Winds, becoming south around 10 Mph this afternoon. Chance of rain 20 percent.

Tonight 20 Aug Coastal Cumberland

Partly cloudy. Lows in the lower 50s. Light and variable Winds.

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Mackworth Island Temperature Statistics

August Temperature

Portland, Portland International Jetport (4.3 miles)

  • Lowest 2 August, 2025

    54.6 °F

  • Average August

    71.1 °F

  • Highest 12 August, 2025

    92.6 °F

Climate (2020–Present)

Portland, Portland International Jetport (4.3 miles)

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  • Average Low 2020–2025

    40.5 °F

  • Average 2020–2025

    49 °F

  • Average High 2020–2025

    57.4 °F
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