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

28°F

-2°C

Humidity 78%
Wind Speed Calm
Barometer 30.07 in (1018.5 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Last update 20 Mar 4:51 am EDT
Extended Forecast for

Portland International Jetport ME

  • Today

    Today: A 30 percent chance of rain, mainly after 4pm. Increasing clouds, with a high near 45. Light and variable wind becoming south 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph. New precipitation amounts of less than a tenth of an inch possible.

    High: 45 °F

    Mostly Sunny
    then Chance
    Rain

  • Tonight

    Tonight: Rain likely, mainly before midnight. Cloudy, with a low around 32. South wind 5 to 10 mph becoming northwest after midnight. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 32 °F

    Rain Likely
    then Slight
    Chance Rain

  • Saturday

    Saturday: Mostly sunny, with a high near 45. Breezy, with a northwest wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 45 °F

    Mostly Sunny
    then Sunny
    and Breezy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 26. Northwest wind around 5 mph.

    Low: 26 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of snow before 9am, then rain and snow likely. Mostly cloudy, with a high near 40. South wind 5 to 10 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 40 °F

    Rain/Snow
    Likely

  • Sunday Night

    Sunday Night: Rain and snow likely, becoming all snow after 2am. Mostly cloudy, with a low around 27. Chance of precipitation is 60%.

    Low: 27 °F

    Rain/Snow
    Likely

  • Monday

    Monday: A 40 percent chance of snow before 5pm. Mostly cloudy, with a high near 37.

    High: 37 °F

    Chance Snow

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 20.

    Low: 20 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 39.

    High: 39 °F

    Sunny

Detailed Forecast

Today
A 30 percent chance of rain, mainly after 4pm. Increasing clouds, with a high near 45. Light and variable wind becoming south 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Rain likely, mainly before midnight. Cloudy, with a low around 32. South wind 5 to 10 mph becoming northwest after midnight. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Mostly sunny, with a high near 45. Breezy, with a northwest wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Saturday Night
Mostly cloudy, with a low around 26. Northwest wind around 5 mph.
Sunday
A chance of snow before 9am, then rain and snow likely. Mostly cloudy, with a high near 40. South wind 5 to 10 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Sunday Night
Rain and snow likely, becoming all snow after 2am. Mostly cloudy, with a low around 27. Chance of precipitation is 60%.
Monday
A 40 percent chance of snow before 5pm. Mostly cloudy, with a high near 37.
Monday Night
Mostly cloudy, with a low around 20.
Tuesday
Sunny, with a high near 39.
Tuesday Night
Partly cloudy, with a low around 23.
Wednesday
Partly sunny, with a high near 42.
Wednesday Night
Mostly cloudy, with a low around 23.
Thursday
A chance of rain and snow. Partly sunny, with a high near 41. Chance of precipitation is 30%.
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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:
2:12 am EDT Mar 20, 2026
Forecast Valid:
5am EDT Mar 20, 2026-6pm EDT Mar 26, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation