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.

Overcast

55°F

13°C

Humidity 59%
Wind Speed S 8 mph
Barometer 30.39 in (1028.9 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Wind Chill53°F (12°C)
Last update 11 Oct 11:51 am EDT
Extended Forecast for

South Portland ME

  • This Afternoon

    This Afternoon: Cloudy, with a high near 57. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 57 °F

    Cloudy

  • Tonight

    Tonight: Showers, mainly before 5am. Areas of fog after 5am. Low around 45. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 45 °F

    Showers and
    Areas Fog

  • Columbus Day

    Columbus Day: A 30 percent chance of showers before 8am. Cloudy through mid morning, then gradual clearing, with a high near 69. Calm wind becoming northwest around 5 mph. New precipitation amounts of less than a tenth of an inch possible.

    High: 69 °F

    Chance
    Showers then
    Sunny

  • Monday Night

    Monday Night: A 30 percent chance of rain after 2am. Increasing clouds, with a low around 41. Northeast wind 5 to 10 mph.

    Low: 41 °F

    Mostly Cloudy
    then Chance
    Rain

  • Tuesday

    Tuesday: Rain, mainly after 8am. High near 59. East wind 10 to 15 mph becoming southeast in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 80%.

    High: 59 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain before 2am, then showers likely after 2am. Low around 48. Chance of precipitation is 90%.

    Low: 48 °F

    Rain

  • Wednesday

    Wednesday: Showers likely, mainly before 7am. Partly sunny, with a high near 66. Chance of precipitation is 60%.

    High: 66 °F

    Showers
    Likely then
    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 39.

    Low: 39 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 59.

    High: 59 °F

    Sunny

Detailed Forecast

This Afternoon
Cloudy, with a high near 57. South wind 5 to 10 mph, with gusts as high as 20 mph.
Tonight
Showers, mainly before 5am. Areas of fog after 5am. Low around 45. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Columbus Day
A 30 percent chance of showers before 8am. Cloudy through mid morning, then gradual clearing, with a high near 69. Calm wind becoming northwest around 5 mph. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
A 30 percent chance of rain after 2am. Increasing clouds, with a low around 41. Northeast wind 5 to 10 mph.
Tuesday
Rain, mainly after 8am. High near 59. East wind 10 to 15 mph becoming southeast in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 80%.
Tuesday Night
Rain before 2am, then showers likely after 2am. Low around 48. Chance of precipitation is 90%.
Wednesday
Showers likely, mainly before 7am. Partly sunny, with a high near 66. Chance of precipitation is 60%.
Wednesday Night
Partly cloudy, with a low around 39.
Thursday
Sunny, with a high near 59.
Thursday Night
Partly cloudy, with a low around 37.
Friday
A 50 percent chance of showers. Partly sunny, with a high near 59.
Friday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 40.
Saturday
A 40 percent chance of showers. Mostly cloudy, with a high near 57. Breezy.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
South Portland ME
 43.62°N 70.28°W (Elev. 39 ft)
Last Update:
11:28 am EDT Oct 11, 2026
Forecast Valid:
12pm EDT Oct 11, 2026-6pm EDT Oct 17, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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