Richmond Island Weather Forecast

    • 68
    • 76

    Increasing Clouds

    • 65
    • 76

    Rain Showers Likely

    • 61
    • 73

    Mostly Sunny

    • 65
    • 72

    Mostly Sunny

    • 61
    • 79

    Chance Rain Showers

    • 59
    • 70

    Partly Sunny

Today 13 Aug Coastal Cumberland

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

Tonight 13 Aug Coastal Cumberland

Partly cloudy in the Evening, then becoming mostly cloudy. Isolated Thunderstorms in the evening. Isolated Showers. Humid with Lows in the upper 60s. South Winds around 10 Mph in the Evening, becoming light and variable. Chance of rain 20 percent.

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Richmond Island Temperature Statistics

August Temperature

Portland, Portland International Jetport (7.5 miles)

  • Lowest 2 August, 2025

    54.6 °F

  • Average August

    68.8 °F

  • Highest 4 August, 2025

    83.6 °F

Climate (2020–Present)

Portland, Portland International Jetport (7.5 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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