Harpswell Weather Forecast

    • 62
    • 74

    Partly Sunny

    • 68
    • 80

    Partly Sunny

    • 65
    • 80

    Chance Thunderstorms

    • 64
    • 75

    Chance Thunderstorms

    • 63
    • 75

    Partly Sunny

    • 62
    • 73

    Chance Rain Showers

Today 5 Jul Coastal Cumberland

Partly sunny. Highs in the lower 80s. West Winds around 10 Mph, becoming south this afternoon.

Tonight 5 Jul Coastal Cumberland

Partly cloudy. Lows in the lower 60s. South Winds around 10 Mph with Gusts up to 20 Mph in the Evening, becoming light and variable.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Harpswell Temperature Statistics

July Temperature

Wiscasset Airport (17.4 miles)

  • Lowest 1 July, 2025

    62.1 °F

  • Average July

    73.4 °F

  • Highest 2 July, 2025

    87.1 °F

Climate (2020–Present)

Wiscasset Airport (17.4 miles)

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  • Average Low 2020–2025

    38.9 °F

  • Average 2020–2025

    48.5 °F

  • Average High 2020–2025

    57.8 °F
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