South Harpswell Weather Forecast

    • 58
    • 66

    Patchy Fog

    • 59
    • 69

    Becoming Sunny

    • 58
    • 69

    Rain Showers Likely

    • 59
    • 67

    Rain Showers Likely

    • 59
    • 69

    Mostly Cloudy

    • 60
    • 70

    Slight Chance Thunderstorms

    • 61
    • 72

    Partly Sunny

Today 23 Jun Coastal Cumberland

Mostly cloudy. Highs in the lower 70s. Light and variable Winds.

Tonight 23 Jun Coastal Cumberland

Mostly cloudy. Areas of fog. Lows in the upper 50s. Light and variable Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

South Harpswell Temperature Statistics

June Temperature

Portland, Portland International Jetport (15.5 miles)

  • Lowest 2 June, 2026

    41.6 °F

  • Average June

    66.4 °F

  • Highest 10 June, 2026

    86.6 °F

Climate (2021–2026)

Portland, Portland International Jetport (15.5 miles)

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  • Average Low 2021–2026

    40 °F

  • Average 2021–2026

    48.6 °F

  • Average High 2021–2026

    57.2 °F
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