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.

Light Rain

64°F

18°C

Humidity 90%
Wind Speed SW 3 mph
Barometer 29.94 in (1013.9 mb)
Dewpoint 61°F (16°C)
Visibility 8.00 mi
Last update 29 Aug 4:51 pm EDT
Extended Forecast for

Portland ME

  • This Afternoon

    This Afternoon: Showers and possibly a thunderstorm. High near 67. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 67 °F

    Showers

  • Tonight

    Tonight: Showers and thunderstorms before 2am, then scattered showers. Low around 55. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 55 °F

    Showers then
    Scattered
    Showers

  • Saturday

    Saturday: Sunny, with a high near 69. Northwest wind around 5 mph becoming southwest in the afternoon.

    High: 69 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 53. Northwest wind around 5 mph.

    Low: 53 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 70. Northwest wind around 5 mph becoming southwest in the afternoon.

    High: 70 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

  • Labor Day

    Labor Day: Sunny, with a high near 71.

    High: 71 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 70.

    High: 70 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Showers and possibly a thunderstorm. High near 67. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms before 2am, then scattered showers. Low around 55. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
Sunny, with a high near 69. Northwest wind around 5 mph becoming southwest in the afternoon.
Saturday Night
Mostly clear, with a low around 53. Northwest wind around 5 mph.
Sunday
Sunny, with a high near 70. Northwest wind around 5 mph becoming southwest in the afternoon.
Sunday Night
Mostly clear, with a low around 56.
Labor Day
Sunny, with a high near 71.
Monday Night
Partly cloudy, with a low around 56.
Tuesday
Mostly sunny, with a high near 70.
Tuesday Night
Mostly clear, with a low around 56.
Wednesday
Sunny, with a high near 71.
Wednesday Night
Partly cloudy, with a low around 58.
Thursday
Mostly sunny, with a high near 69.
Thursday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 59.
Friday
A chance of showers. Partly sunny, with a high near 67.
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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:
2:01 pm EDT Aug 29, 2025
Forecast Valid:
5pm EDT Aug 29, 2025-6pm EDT Sep 5, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation