Harpswell Weather Forecast

    • 25
    • 44

    Chance Snow

    • 31
    • 39

    Mostly Cloudy

    • 39
    • 50

    Rain

    • 19
    • 48

    Chance Rain

    • 25
    • 34

    Mostly Cloudy

    • 29
    • 39

    Mostly Cloudy

Today 14 Mar Coastal Cumberland

Partly sunny. A chance of snow with a slight chance of rain in the Morning, then a chance of rain in the afternoon. Highs in the mid 40s. West Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of precipitation 50 percent.

Tonight 14 Mar Coastal Cumberland

Partly cloudy with a slight chance of rain and snow in the Evening, then mostly clear after midnight. Lows in the lower 20s. West Winds 10 to 15 Mph. Gusts up to 35 Mph, decreasing to 25 Mph after midnight. Chance of precipitation 20 percent.

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Harpswell Temperature Statistics

March Temperature

Wiscasset Airport (17.4 miles)

  • Lowest 2 March, 2026

    1.9 °F

  • Average March

    34.7 °F

  • Highest 10 March, 2026

    69.1 °F

Climate (2021–Present)

Wiscasset Airport (17.4 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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