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

Hazardous Weather Conditions

Current conditions at

Portland, Portland International Jetport (KPWM)

Lat: 43.64°NLon: 70.3°WElev: 72ft.

Fair

74°F

23°C

Humidity 91%
Wind Speed S 5 mph
Barometer 29.79 in (1008.8 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Last update 13 Aug 7:51 pm EDT
Extended Forecast for

West Harpswell ME

  • Tonight

    Tonight: A 30 percent chance of showers, mainly before midnight. Mostly cloudy, with a low around 65. Southwest wind 5 to 10 mph.

    Low: 65 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 5pm. Partly sunny, with a high near 80. Southwest wind around 5 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 80 °F

    Chance
    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 11pm. Partly cloudy, with a low around 64. Calm wind becoming north around 5 mph after midnight. Chance of precipitation is 20%.

    Low: 64 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 76. North wind 5 to 10 mph becoming southeast in the afternoon.

    High: 76 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 60. South wind around 5 mph becoming calm.

    Low: 60 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy

Detailed Forecast

Tonight
A 30 percent chance of showers, mainly before midnight. Mostly cloudy, with a low around 65. Southwest wind 5 to 10 mph.
Thursday
A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 5pm. Partly sunny, with a high near 80. Southwest wind around 5 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 11pm. Partly cloudy, with a low around 64. Calm wind becoming north around 5 mph after midnight. Chance of precipitation is 20%.
Friday
Sunny, with a high near 76. North wind 5 to 10 mph becoming southeast in the afternoon.
Friday Night
Mostly clear, with a low around 60. South wind around 5 mph becoming calm.
Saturday
Sunny, with a high near 75.
Saturday Night
Mostly clear, with a low around 64.
Sunday
Mostly sunny, with a high near 80.
Sunday Night
Partly cloudy, with a low around 60.
Monday
Sunny, with a high near 72.
Monday Night
Partly cloudy, with a low around 58.
Tuesday
Mostly sunny, with a high near 70.
Tuesday Night
Partly cloudy, with a low around 57.
Wednesday
Mostly sunny, with a high near 70.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
West Harpswell ME
 43.78°N 70.02°W (Elev. 0 ft)
Last Update:
8:30 pm EDT Aug 13, 2025
Forecast Valid:
8pm EDT Aug 13, 2025-6pm EDT Aug 20, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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