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

50°F

10°C

Humidity 86%
Wind Speed NW 8 mph
Barometer 29.77 in (1008.0 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Wind Chill47°F (8°C)
Last update 23 May 3:51 pm EDT
Extended Forecast for

Portland ME

  • This Afternoon

    This Afternoon: A 30 percent chance of showers, mainly before 5pm. Mostly cloudy, with a high near 49. Northwest wind 5 to 10 mph. New precipitation amounts of less than a tenth of an inch possible.

    High: 49 °F

    Chance
    Showers

  • Tonight

    Tonight: Showers likely, mainly after 11pm. Cloudy, with a low around 44. Northwest wind around 5 mph becoming calm. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 44 °F

    Showers
    Likely

  • Saturday

    Saturday: A 40 percent chance of showers. Cloudy, with a high near 53. West wind around 5 mph. New precipitation amounts of less than a tenth of an inch possible.

    High: 53 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 45. Northwest wind around 5 mph.

    Low: 45 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 57. Northwest wind around 5 mph.

    High: 57 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 47.

    Low: 47 °F

    Mostly Cloudy

  • Memorial Day

    Memorial Day: Mostly sunny, with a high near 61.

    High: 61 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 48.

    Low: 48 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

Detailed Forecast

This Afternoon
A 30 percent chance of showers, mainly before 5pm. Mostly cloudy, with a high near 49. Northwest wind 5 to 10 mph. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Showers likely, mainly after 11pm. Cloudy, with a low around 44. Northwest wind around 5 mph becoming calm. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
A 40 percent chance of showers. Cloudy, with a high near 53. West wind around 5 mph. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
Mostly cloudy, with a low around 45. Northwest wind around 5 mph.
Sunday
Partly sunny, with a high near 57. Northwest wind around 5 mph.
Sunday Night
Mostly cloudy, with a low around 47.
Memorial Day
Mostly sunny, with a high near 61.
Monday Night
Mostly clear, with a low around 48.
Tuesday
Sunny, with a high near 66.
Tuesday Night
Partly cloudy, with a low around 52.
Wednesday
Mostly sunny, with a high near 66.
Wednesday Night
Partly cloudy, with a low around 53.
Thursday
Partly sunny, with a high near 65.
Thursday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 55.
Friday
A chance of showers. 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:
2:49 pm EDT May 23, 2025
Forecast Valid:
4pm EDT May 23, 2025-6pm EDT May 30, 2025
 
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