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 49%
Wind Speed N 8 mph
Barometer 30.16 in (1021.3 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill53°F (12°C)
Last update 21 May 6:51 am EDT
Extended Forecast for

Portland ME

  • Today

    Today: Partly sunny, with a high near 61. Northwest wind 5 to 10 mph.

    High: 61 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy during the evening, then clear overnight, with a low around 42. Calm wind becoming north around 5 mph after midnight.

    Low: 42 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 61. North wind 5 to 10 mph becoming south in the afternoon.

    High: 61 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 45. Southwest wind around 5 mph becoming calm in the evening.

    Low: 45 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 58. Northeast wind 5 to 10 mph becoming southeast in the afternoon.

    High: 58 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 46.

    Low: 46 °F

    Mostly Cloudy

  • Sunday

    Sunday: Showers likely, mainly after 3pm. Mostly cloudy, with a high near 53. Chance of precipitation is 60%.

    High: 53 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: Showers likely, mainly after 4am. Cloudy, with a low around 46. Chance of precipitation is 60%.

    Low: 46 °F

    Showers
    Likely

  • Memorial Day

    Memorial Day: Showers likely, mainly before 7am. Mostly cloudy, with a high near 62. Chance of precipitation is 60%.

    High: 62 °F

    Showers
    Likely

Detailed Forecast

Today
Partly sunny, with a high near 61. Northwest wind 5 to 10 mph.
Tonight
Mostly cloudy during the evening, then clear overnight, with a low around 42. Calm wind becoming north around 5 mph after midnight.
Friday
Sunny, with a high near 61. North wind 5 to 10 mph becoming south in the afternoon.
Friday Night
Partly cloudy, with a low around 45. Southwest wind around 5 mph becoming calm in the evening.
Saturday
Mostly cloudy, with a high near 58. Northeast wind 5 to 10 mph becoming southeast in the afternoon.
Saturday Night
Mostly cloudy, with a low around 46.
Sunday
Showers likely, mainly after 3pm. Mostly cloudy, with a high near 53. Chance of precipitation is 60%.
Sunday Night
Showers likely, mainly after 4am. Cloudy, with a low around 46. Chance of precipitation is 60%.
Memorial Day
Showers likely, mainly before 7am. Mostly cloudy, with a high near 62. Chance of precipitation is 60%.
Monday Night
Mostly cloudy, with a low around 49.
Tuesday
Mostly sunny, with a high near 72.
Tuesday Night
Partly cloudy, with a low around 52.
Wednesday
Mostly sunny, with a high near 72.
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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:
6:48 am EDT May 21, 2026
Forecast Valid:
7am EDT May 21, 2026-6pm EDT May 27, 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