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.

Overcast

28°F

-2°C

Humidity 72%
Wind Speed Calm
Barometer 30.37 in (1028.5 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Last update 19 Mar 5:51 am EDT
Extended Forecast for

Portland International Jetport ME

  • Today

    Today: Partly sunny, with a high near 38. Light south wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 38 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 26. Southwest wind around 5 mph.

    Low: 26 °F

    Partly Cloudy

  • Friday

    Friday: Increasing clouds, with a high near 46. Light and variable wind becoming south 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 46 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: Rain likely, mainly after 10pm. Mostly cloudy, with a low around 33. South wind around 10 mph. Chance of precipitation is 70%.

    Low: 33 °F

    Rain Likely

  • Saturday

    Saturday: A 30 percent chance of rain before 9am. Partly sunny, with a high near 49. West wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 49 °F

    Chance Rain
    then Partly
    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 31.

    Low: 31 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 40 percent chance of rain after 8am. Mostly cloudy, with a high near 45.

    High: 45 °F

    Chance Rain

  • Sunday Night

    Sunday Night: A chance of rain before 11pm, then a chance of rain and snow. Mostly cloudy, with a low around 27. Chance of precipitation is 50%.

    Low: 27 °F

    Chance
    Rain/Snow

  • Monday

    Monday: A 40 percent chance of snow before 4pm. Mostly cloudy, with a high near 40.

    High: 40 °F

    Chance Snow

Detailed Forecast

Today
Partly sunny, with a high near 38. Light south wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Tonight
Partly cloudy, with a low around 26. Southwest wind around 5 mph.
Friday
Increasing clouds, with a high near 46. Light and variable wind becoming south 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Friday Night
Rain likely, mainly after 10pm. Mostly cloudy, with a low around 33. South wind around 10 mph. Chance of precipitation is 70%.
Saturday
A 30 percent chance of rain before 9am. Partly sunny, with a high near 49. West wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday Night
Mostly cloudy, with a low around 31.
Sunday
A 40 percent chance of rain after 8am. Mostly cloudy, with a high near 45.
Sunday Night
A chance of rain before 11pm, then a chance of rain and snow. Mostly cloudy, with a low around 27. Chance of precipitation is 50%.
Monday
A 40 percent chance of snow before 4pm. Mostly cloudy, with a high near 40.
Monday Night
Partly cloudy, with a low around 21.
Tuesday
Mostly sunny, with a high near 39.
Tuesday Night
Partly cloudy, with a low around 24.
Wednesday
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:
5:29 am EDT Mar 19, 2026
Forecast Valid:
5am EDT Mar 19, 2026-6pm EDT Mar 25, 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