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.

Fog/Mist

52°F

11°C

Humidity 97%
Wind Speed N 5 mph
Barometer 30.06 in (1017.9 mb)
Dewpoint 51°F (11°C)
Visibility 3.00 mi
Wind Chill51°F (11°C)
Last update 20 Sep 9:51 pm EDT
Extended Forecast for

Portland International Jetport ME

  • Tonight

    Tonight: Showers likely, mainly before 2am. Areas of fog before 2am. Otherwise, cloudy, with a low around 50. North wind around 5 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 50 °F

    Showers
    Likely and
    Areas Fog

  • Monday

    Monday: Mostly sunny, with a high near 66. North wind 5 to 10 mph.

    High: 66 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 46. North wind 5 to 10 mph.

    Low: 46 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 63. Northeast wind around 10 mph, with gusts as high as 20 mph.

    High: 63 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 45. Light east wind becoming northeast 5 to 10 mph after midnight.

    Low: 45 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 63.

    High: 63 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 45.

    Low: 45 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 45.

    Low: 45 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Showers likely, mainly before 2am. Areas of fog before 2am. Otherwise, cloudy, with a low around 50. North wind around 5 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Mostly sunny, with a high near 66. North wind 5 to 10 mph.
Monday Night
Mostly cloudy, with a low around 46. North wind 5 to 10 mph.
Tuesday
Mostly cloudy, then gradually becoming sunny, with a high near 63. Northeast wind around 10 mph, with gusts as high as 20 mph.
Tuesday Night
Partly cloudy, with a low around 45. Light east wind becoming northeast 5 to 10 mph after midnight.
Wednesday
Mostly sunny, with a high near 63.
Wednesday Night
Partly cloudy, with a low around 45.
Thursday
Mostly sunny, with a high near 65.
Thursday Night
Mostly cloudy, with a low around 45.
Friday
Partly sunny, with a high near 66.
Friday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 47.
Saturday
A 40 percent chance of showers. Partly sunny, with a high near 67. Breezy.
Saturday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 48.
Sunday
A 30 percent chance of showers. Partly sunny, with a high near 69.
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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:
6:45 pm EDT Sep 20, 2026
Forecast Valid:
10pm EDT Sep 20, 2026-6pm EDT Sep 27, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation