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.

Mostly Cloudy

28°F

-2°C

Humidity 37%
Wind Speed W 7 mph
Barometer 30.39 in (1029.2 mb)
Dewpoint 5°F (-15°C)
Visibility 10.00 mi
Wind Chill21°F (-6°C)
Last update 18 Mar 11:51 am EDT
Extended Forecast for

Portland International Jetport ME

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 32. West wind around 5 mph.

    High: 32 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 22. South wind around 5 mph.

    Low: 22 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 37. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 37 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 26. South wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 26 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 47. Southwest wind 5 to 10 mph.

    High: 47 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 30 percent chance of rain after 2am. Mostly cloudy, with a low around 31.

    Low: 31 °F

    Mostly Cloudy
    then Chance
    Rain

  • Saturday

    Saturday: Rain likely, mainly between 10am and 1pm. Mostly cloudy, with a high near 44. Chance of precipitation is 60%.

    High: 44 °F

    Rain Likely

  • Saturday Night

    Saturday Night: A 30 percent chance of rain. Mostly cloudy, with a low around 33.

    Low: 33 °F

    Chance Rain

  • Sunday

    Sunday: A 40 percent chance of rain before 2pm. Partly sunny, with a high near 48.

    High: 48 °F

    Chance Rain

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 32. West wind around 5 mph.
Tonight
Mostly cloudy, with a low around 22. South wind around 5 mph.
Thursday
Partly sunny, with a high near 37. South wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday Night
Partly cloudy, with a low around 26. South wind 5 to 10 mph, with gusts as high as 20 mph.
Friday
Mostly sunny, with a high near 47. Southwest wind 5 to 10 mph.
Friday Night
A 30 percent chance of rain after 2am. Mostly cloudy, with a low around 31.
Saturday
Rain likely, mainly between 10am and 1pm. Mostly cloudy, with a high near 44. Chance of precipitation is 60%.
Saturday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 33.
Sunday
A 40 percent chance of rain before 2pm. Partly sunny, with a high near 48.
Sunday Night
Partly cloudy, with a low around 26.
Monday
Sunny, with a high near 40.
Monday Night
Mostly clear, with a low around 21.
Tuesday
Mostly sunny, with a high near 42.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Portland International Jetport ME
 43.65°N 70.3°W (Elev. 52 ft)
Last Update:
1:59 am EDT Mar 18, 2026
Forecast Valid:
12pm EDT Mar 18, 2026-6pm EDT Mar 24, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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