Whaleboat Island Weather Forecast

    • 66
    • 76

    Increasing Clouds

    • 67
    • 76

    Chance Rain Showers

    • 60
    • 77

    Mostly Sunny

    • 62
    • 74

    Chance Rain Showers

    • 59
    • 72

    Chance Rain Showers

    • 59
    • 73

    Partly Sunny

    • 61
    • 73

    Partly Sunny

Today 16 Jul Coastal Cumberland

Mostly sunny. Warm with Highs in the mid 80s. South Winds around 10 Mph. Heat index Values in the lower 90s.

Tonight 16 Jul Coastal Cumberland

Mostly clear this Evening, then becoming partly cloudy. Areas of fog after midnight. Lows in the upper 60s. South Winds around 10 Mph this Evening, becoming light and variable.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Whaleboat Island Temperature Statistics

July Temperature

Portland, Portland International Jetport (14.9 miles)

  • Lowest 5 July, 2025

    54.6 °F

  • Average July

    71.1 °F

  • Highest 6 July, 2025

    92.6 °F

Climate (2020–Present)

Portland, Portland International Jetport (14.9 miles)

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  • Average Low 2020–2025

    40.6 °F

  • Average 2020–2025

    49.1 °F

  • Average High 2020–2025

    57.4 °F
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