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.

Fair

61°F

16°C

Humidity NA
Wind Speed Calm
Barometer 30.17 in (1021.6 mb)
Dewpoint N/A
Visibility NA
Last update 16 Aug 1:51 am EDT
Extended Forecast for

South Portland MESimilar City Names

  • Overnight

    Overnight: Partly cloudy, with a low around 53. North wind around 5 mph.

    Low: 53 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 72. Light and variable wind becoming southeast 5 to 10 mph in the afternoon.

    High: 72 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A 30 percent chance of rain, mainly after 3am. Mostly cloudy, with a low around 62. South wind 5 to 10 mph. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 62 °F

    Mostly Cloudy
    then Chance
    Rain

  • Monday

    Monday: Rain before noon, then showers, mainly after noon. High near 77. South wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 100%.

    High: 77 °F

    Rain

  • Monday Night

    Monday Night: A 40 percent chance of showers before 1am. Mostly cloudy, with a low around 60. East wind around 5 mph becoming north after midnight.

    Low: 60 °F

    Chance
    Showers

  • Tuesday

    Tuesday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers after 3am. Partly cloudy, with a low around 62.

    Low: 62 °F

    Partly Cloudy
    then Chance
    Showers

Detailed Forecast

Overnight
Partly cloudy, with a low around 53. North wind around 5 mph.
Sunday
Mostly sunny, with a high near 72. Light and variable wind becoming southeast 5 to 10 mph in the afternoon.
Sunday Night
A 30 percent chance of rain, mainly after 3am. Mostly cloudy, with a low around 62. South wind 5 to 10 mph. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
Rain before noon, then showers, mainly after noon. High near 77. South wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 100%.
Monday Night
A 40 percent chance of showers before 1am. Mostly cloudy, with a low around 60. East wind around 5 mph becoming north after midnight.
Tuesday
Mostly sunny, with a high near 82.
Tuesday Night
Partly cloudy, with a low around 59.
Wednesday
Mostly sunny, with a high near 84.
Wednesday Night
A 30 percent chance of showers after 3am. Partly cloudy, with a low around 62.
Thursday
A 30 percent chance of showers. Partly sunny, with a high near 82.
Thursday Night
Partly cloudy, with a low around 56.
Friday
Sunny, with a high near 81.
Friday Night
Partly cloudy, with a low around 55.
Saturday
Mostly sunny, with a high near 79.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
South Portland MESimilar City Names
 43.62°N 70.28°W (Elev. 39 ft)
Last Update:
6:12 pm EDT Aug 15, 2026
Forecast Valid:
2am EDT Aug 16, 2026-6pm EDT Aug 22, 2026
 
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