Harpswell Weather Forecast

    • 57
    • 72

    Rain Showers Likely

    • 60
    • 82

    Partly Sunny

    • 61
    • 76

    Rain Showers Likely

    • 57
    • 75

    Partly Sunny

    • 57
    • 72

    Partly Sunny

    • 58
    • 72

    Slight Chance Rain Showers

Today 12 Jun Coastal Cumberland

Mostly cloudy. Patchy fog this morning. A slight chance of Showers this Morning, then a chance of Showers with a slight chance of Thunderstorms this afternoon. Some Thunderstorms may produce heavy rainfall this afternoon. Highs in the upper 70s. Light and variable Winds. Chance of rain 40 percent.

Tonight 12 Jun Coastal Cumberland

Cloudy with a chance of Showers with a slight chance of Thunderstorms. Areas of fog. Visibility one quarter mile or less at Times. Lows in the upper 50s. Light and variable Winds. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Harpswell Temperature Statistics

June Temperature

Wiscasset Airport (17.4 miles)

  • Lowest 2 June, 2026

    39.9 °F

  • Average June

    62.7 °F

  • Highest 4 June, 2026

    84.9 °F

Climate (2021–Present)

Wiscasset Airport (17.4 miles)

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  • Average Low 2021–2026

    38.6 °F

  • Average 2021–2026

    48.3 °F

  • Average High 2021–2026

    57.8 °F
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