National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Portland, Portland International Jetport (KPWM)

Lat: 43.64°NLon: 70.3°WElev: 72ft.

Mostly Cloudy

29°F

-2°C

Humidity 85%
Wind Speed W 5 mph
Barometer 29.83 in (1010.2 mb)
Dewpoint 25°F (-4°C)
Visibility NA
Wind Chill24°F (-4°C)
Last update 15 Nov 2:51 am EST
Extended Forecast for

South Harpswell ME

  • Overnight

    Overnight: Mostly clear, with a low around 34. Northwest wind around 15 mph.

    Low: 34 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 46. Northwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 46 °F

    Sunny

  • Saturday Night

    Saturday Night: Rain, mainly after 9pm. Low around 40. Breezy, with a southwest wind 10 to 20 mph becoming south after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 40 °F

    Rain and
    Breezy

  • Sunday

    Sunday: A 30 percent chance of rain before 7am. Mostly cloudy, with a high near 46. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 46 °F

    Chance Rain
    then Mostly
    Cloudy and
    Breezy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 35. Breezy, with a west wind around 25 mph, with gusts as high as 35 mph.

    Low: 35 °F

    Mostly Cloudy
    and Breezy

  • Monday

    Monday: Partly sunny, with a high near 42. Breezy.

    High: 42 °F

    Partly Sunny
    and Breezy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 35. Breezy.

    Low: 35 °F

    Partly Cloudy
    and Breezy

  • Tuesday

    Tuesday: Sunny, with a high near 43. Breezy.

    High: 43 °F

    Sunny and
    Breezy then
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 34.

    Low: 34 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 34. Northwest wind around 15 mph.
Saturday
Sunny, with a high near 46. Northwest wind 10 to 15 mph, with gusts as high as 20 mph.
Saturday Night
Rain, mainly after 9pm. Low around 40. Breezy, with a southwest wind 10 to 20 mph becoming south after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
A 30 percent chance of rain before 7am. Mostly cloudy, with a high near 46. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday Night
Mostly cloudy, with a low around 35. Breezy, with a west wind around 25 mph, with gusts as high as 35 mph.
Monday
Partly sunny, with a high near 42. Breezy.
Monday Night
Partly cloudy, with a low around 35. Breezy.
Tuesday
Sunny, with a high near 43. Breezy.
Tuesday Night
Mostly clear, with a low around 34.
Wednesday
Sunny, with a high near 43.
Wednesday Night
Partly cloudy, with a low around 34.
Thursday
Mostly sunny, with a high near 45.
Thursday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 38.
Friday
Showers likely. Mostly cloudy, with a high near 47. Chance of precipitation is 60%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
South Harpswell ME
 43.74°N 70°W (Elev. 0 ft)
Last Update:
12:33 am EST Nov 15, 2025
Forecast Valid:
3am EST Nov 15, 2025-6pm EST Nov 21, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation