Harpswell Sound - High Head Weather Forecast

    • 59
    • 65

    Slight Chance Rain Showers

    • 59
    • 72

    Mostly Sunny

    • 56
    • 70

    Partly Sunny

    • 55
    • 67

    Chance Rain Showers

    • 56
    • 67

    Rain Showers Likely

    • 58
    • 71

    Chance Rain Showers

    • 57
    • 72

    Partly Sunny

Today 18 Jun Coastal Cumberland

Showers with a chance of Thunderstorms. Some Thunderstorms may be severe with damaging Winds and Tornadoes. Highs in the lower 70s. South Winds around 20 Mph with Gusts up to 45 Mph. Chance of rain near 100 percent.

Tonight 18 Jun Coastal Cumberland

Partly cloudy with Showers and scattered Thunderstorms this Evening, then mostly clear after midnight. Lows in the upper 50s. South Winds 15 to 20 Mph with Gusts up to 40 Mph, becoming southwest around 10 Mph with Gusts up to 20 Mph after midnight. Chance of rain 80 percent.

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Harpswell Sound - High Head Temperature Statistics

June Temperature

Wiscasset Airport (16.8 miles)

  • Lowest 2 June, 2026

    39.9 °F

  • Average June

    66.5 °F

  • Highest 13 June, 2026

    88 °F

Climate (2021–2026)

Wiscasset Airport (16.8 miles)

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  • Average Low 2021–2026

    38.7 °F

  • Average 2021–2026

    48.4 °F

  • Average High 2021–2026

    57.9 °F
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