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

75°F

24°C

Humidity 42%
Wind Speed NW 10 mph
Barometer 29.87 in (1011.5 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 20 May 8:51 pm EDT
Extended Forecast for

Portland ME

  • Tonight

    Tonight: Isolated showers before 11pm. Mostly cloudy, with a low around 50. Northwest wind around 10 mph. Chance of precipitation is 20%.

    Low: 50 °F

    Isolated
    Showers then
    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 60. North wind 5 to 10 mph becoming west in the afternoon.

    High: 60 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly cloudy, then gradually becoming clear, with a low around 41. North wind around 5 mph.

    Low: 41 °F

    Decreasing
    Clouds

  • Friday

    Friday: Sunny, with a high near 60. Northwest wind 5 to 10 mph becoming south in the afternoon.

    High: 60 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 47. Southwest wind around 5 mph becoming calm in the evening.

    Low: 47 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 58.

    High: 58 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 45.

    Low: 45 °F

    Mostly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: A 50 percent chance of showers. Mostly cloudy, with a high near 55.

    High: 55 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Showers likely, mainly after 9pm. Mostly cloudy, with a low around 45. Chance of precipitation is 60%.

    Low: 45 °F

    Showers
    Likely

Detailed Forecast

Tonight
Isolated showers before 11pm. Mostly cloudy, with a low around 50. Northwest wind around 10 mph. Chance of precipitation is 20%.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 60. North wind 5 to 10 mph becoming west in the afternoon.
Thursday Night
Mostly cloudy, then gradually becoming clear, with a low around 41. North wind around 5 mph.
Friday
Sunny, with a high near 60. Northwest wind 5 to 10 mph becoming south in the afternoon.
Friday Night
Partly cloudy, with a low around 47. Southwest wind around 5 mph becoming calm in the evening.
Saturday
Partly sunny, with a high near 58.
Saturday Night
A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 45.
Sunday
A 50 percent chance of showers. Mostly cloudy, with a high near 55.
Sunday Night
Showers likely, mainly after 9pm. Mostly cloudy, with a low around 45. Chance of precipitation is 60%.
Memorial Day
Showers likely, mainly before 9am. Mostly cloudy, with a high near 62. Chance of precipitation is 60%.
Monday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 48.
Tuesday
A 30 percent chance of showers. Mostly sunny, with a high near 70.
Tuesday Night
Partly cloudy, with a low around 51.
Wednesday
Sunny, with a high near 71.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Portland ME
 43.66°N 70.27°W (Elev. 7 ft)
Last Update:
2:16 pm EDT May 20, 2026
Forecast Valid:
9pm EDT May 20, 2026-6pm EDT May 27, 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