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

66°F

19°C

Humidity 49%
Wind Speed NE 6 mph
Barometer 30.14 in (1020.5 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 21 Sep 4:51 pm EDT
Extended Forecast for

Portland ME

  • Tonight

    Tonight: Mostly cloudy, with a low around 49. Northeast wind 5 to 10 mph.

    Low: 49 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 60. Northeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 60 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 48. Calm wind becoming northeast around 5 mph after midnight.

    Low: 48 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 58. East wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 58 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 47. Calm wind becoming north around 5 mph after midnight.

    Low: 47 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 61.

    High: 61 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 49.

    Low: 49 °F

    Mostly Cloudy

  • Friday

    Friday: A 40 percent chance of showers after 8am. Mostly cloudy, with a high near 64. Breezy.

    High: 64 °F

    Chance
    Showers and
    Breezy

  • Friday Night

    Friday Night: Showers likely, mainly after 11pm. Mostly cloudy, with a low around 51. Breezy. Chance of precipitation is 60%.

    Low: 51 °F

    Showers
    Likely and
    Breezy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 49. Northeast wind 5 to 10 mph.
Tuesday
Mostly cloudy, then gradually becoming sunny, with a high near 60. Northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 48. Calm wind becoming northeast around 5 mph after midnight.
Wednesday
Sunny, with a high near 58. East wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday Night
Mostly clear, with a low around 47. Calm wind becoming north around 5 mph after midnight.
Thursday
Mostly sunny, with a high near 61.
Thursday Night
Mostly cloudy, with a low around 49.
Friday
A 40 percent chance of showers after 8am. Mostly cloudy, with a high near 64. Breezy.
Friday Night
Showers likely, mainly after 11pm. Mostly cloudy, with a low around 51. Breezy. Chance of precipitation is 60%.
Saturday
Showers likely. Mostly cloudy, with a high near 64. Breezy. Chance of precipitation is 60%.
Saturday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 52.
Sunday
A 40 percent chance of showers. Partly sunny, with a high near 65. Breezy.
Sunday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 51.
Monday
Partly sunny, with a high near 65.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Portland ME
 43.66°N 70.27°W (Elev. 7 ft)
Last Update:
3:00 pm EDT Sep 21, 2026
Forecast Valid:
5pm EDT Sep 21, 2026-6pm EDT Sep 28, 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