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

12°F

-11°C

Humidity 70%
Wind Speed Calm
Barometer 30.04 in (1017.2 mb)
Dewpoint 4°F (-16°C)
Visibility 10.00 mi
Last update 5 Dec 11:51 pm EST
Extended Forecast for

South Portland ME

  • Tonight

    Tonight: Partly cloudy, with a low around 19. West wind around 5 mph.

    Low: 19 °F

    Partly Cloudy

  • Saturday

    Saturday: A 40 percent chance of snow showers, mainly before noon. Mostly cloudy, with a high near 35. West wind 5 to 10 mph becoming southwest in the afternoon.

    High: 35 °F

    Chance Snow
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 24. West wind around 5 mph.

    Low: 24 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 33. Northwest wind around 5 mph.

    High: 33 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A chance of snow showers before 10pm, then snow likely, mainly between 10pm and 3am. Mostly cloudy, with a low around 19. North wind 5 to 10 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.

    Low: 19 °F

    Snow Likely

  • Monday

    Monday: A 30 percent chance of snow before 7am. Mostly sunny, with a high near 25.

    High: 25 °F

    Chance Snow
    then Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 11.

    Low: 11 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 30.

    High: 30 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of snow showers between 9pm and 1am. Mostly cloudy, with a low around 24. Chance of precipitation is 30%.

    Low: 24 °F

    Chance Snow
    Showers

Detailed Forecast

Tonight
Partly cloudy, with a low around 19. West wind around 5 mph.
Saturday
A 40 percent chance of snow showers, mainly before noon. Mostly cloudy, with a high near 35. West wind 5 to 10 mph becoming southwest in the afternoon.
Saturday Night
Partly cloudy, with a low around 24. West wind around 5 mph.
Sunday
Partly sunny, with a high near 33. Northwest wind around 5 mph.
Sunday Night
A chance of snow showers before 10pm, then snow likely, mainly between 10pm and 3am. Mostly cloudy, with a low around 19. North wind 5 to 10 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.
Monday
A 30 percent chance of snow before 7am. Mostly sunny, with a high near 25.
Monday Night
Mostly clear, with a low around 11.
Tuesday
Mostly sunny, with a high near 30.
Tuesday Night
A chance of snow showers between 9pm and 1am. Mostly cloudy, with a low around 24. Chance of precipitation is 30%.
Wednesday
A chance of rain and snow between 3pm and 4pm, then a chance of rain after 4pm. Mostly cloudy, with a high near 40. Chance of precipitation is 30%.
Wednesday Night
Rain and snow likely. Cloudy, with a low around 32. Chance of precipitation is 60%.
Thursday
A chance of rain and snow. Mostly cloudy, with a high near 40. Chance of precipitation is 40%.
Thursday Night
A chance of rain and snow. Mostly cloudy, with a low around 26. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 35.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
South Portland ME
 43.64°N 70.27°W (Elev. 13 ft)
Last Update:
6:16 pm EST Dec 5, 2025
Forecast Valid:
11pm EST Dec 5, 2025-6pm EST Dec 12, 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