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

54°F

12°C

Humidity 93%
Wind Speed W 3 mph
Barometer 30.25 in (1024.3 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 1 Sep 3:51 am EDT
Extended Forecast for

Portland International Jetport ME

  • Labor Day

    Labor Day: Mostly sunny, with a high near 76. North wind 5 to 10 mph becoming east in the afternoon.

    High: 76 °F

    Mostly Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 55. Calm wind.

    Low: 55 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 75. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 75 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 54. South wind around 5 mph becoming calm in the evening.

    Low: 54 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 77. Light southwest wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 77 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

  • Friday

    Friday: Showers likely, mainly after 4pm. Partly sunny, with a high near 73. Chance of precipitation is 60%.

    High: 73 °F

    Showers
    Likely

Detailed Forecast

Labor Day
Mostly sunny, with a high near 76. North wind 5 to 10 mph becoming east in the afternoon.
Tonight
Increasing clouds, with a low around 55. Calm wind.
Tuesday
Mostly cloudy, then gradually becoming sunny, with a high near 75. Calm wind becoming southeast around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 54. South wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 77. Light southwest wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Wednesday Night
Mostly clear, with a low around 55.
Thursday
Sunny, with a high near 77.
Thursday Night
Partly cloudy, with a low around 58.
Friday
Showers likely, mainly after 4pm. Partly sunny, with a high near 73. Chance of precipitation is 60%.
Friday Night
Showers likely, mainly before 7pm. Mostly cloudy, with a low around 57. Chance of precipitation is 60%.
Saturday
A 30 percent chance of showers. Mostly sunny, with a high near 77.
Saturday Night
A 30 percent chance of showers. Partly cloudy, with a low around 55.
Sunday
Sunny, with a high near 74.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Portland International Jetport ME
 43.65°N 70.3°W (Elev. 52 ft)
Last Update:
1:26 am EDT Sep 1, 2025
Forecast Valid:
4am EDT Sep 1, 2025-6pm EDT Sep 7, 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