Harpswell Weather Forecast

    • 60
    • 64

    Chance Rain Showers

    • 63
    • 71

    Chance Rain Showers

    • 59
    • 75

    Slight Chance Rain Showers

    • 61
    • 73

    Mostly Cloudy

    • 63
    • 75

    Mostly Cloudy

    • 65
    • 76

    Partly Sunny

Today 18 Jun Coastal Cumberland

Cloudy. Areas of fog this morning. A chance of Showers, mainly this morning. Highs around 70. South Winds around 10 Mph. Chance of rain 40 percent.

Tonight 18 Jun Coastal Cumberland

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

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Harpswell Temperature Statistics

June Temperature

Wiscasset Airport (17.4 miles)

  • Lowest 2 June, 2025

    42.7 °F

  • Average June

    63.5 °F

  • Highest 5 June, 2025

    90.6 °F

Climate (2020–Present)

Wiscasset Airport (17.4 miles)

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  • Average Low 2020–2025

    38.9 °F

  • Average 2020–2025

    48.4 °F

  • Average High 2020–2025

    57.8 °F
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