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.

A Few Clouds

18°F

-8°C

Humidity 62%
Wind Speed W 3 mph
Barometer 30.23 in (1023.6 mb)
Dewpoint 7°F (-14°C)
Visibility 10.00 mi
Last update 18 Mar 5:51 am EDT
Extended Forecast for

Portland International Jetport ME

  • Today

    Today: Increasing clouds, with a high near 32. Northwest wind 5 to 10 mph.

    High: 32 °F

    Increasing
    Clouds

  • 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

Today
Increasing clouds, with a high near 32. Northwest wind 5 to 10 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:
6am EDT Mar 18, 2026-6pm EDT Mar 24, 2026
 
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