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

30°F

-1°C

Humidity 56%
Wind Speed Calm
Barometer 30.45 in (1031.2 mb)
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Last update 15 Mar 6:51 am EDT
Extended Forecast for

Portland International Jetport ME

  • Today

    Today: Partly sunny, with a high near 41. Northwest wind 5 to 10 mph becoming east in the afternoon.

    High: 41 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 33. Southeast wind around 10 mph, with gusts as high as 20 mph.

    Low: 33 °F

    Mostly Cloudy

  • Monday

    Monday: Rain, with thunderstorms also possible after 2pm. High near 49. South wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    High: 49 °F

    Rain

  • Monday Night

    Monday Night: Rain. Low around 41. Breezy, with a south wind 20 to 25 mph, with gusts as high as 45 mph. Chance of precipitation is 100%.

    Low: 41 °F

    Rain and
    Breezy

  • Tuesday

    Tuesday: Showers likely, mainly before 7am. Mostly sunny, with a high near 45. West wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.

    High: 45 °F

    Showers
    Likely then
    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 16.

    Low: 16 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 34.

    High: 34 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 22.

    Low: 22 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 40.

    High: 40 °F

    Partly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 41. Northwest wind 5 to 10 mph becoming east in the afternoon.
Tonight
Mostly cloudy, with a low around 33. Southeast wind around 10 mph, with gusts as high as 20 mph.
Monday
Rain, with thunderstorms also possible after 2pm. High near 49. South wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Monday Night
Rain. Low around 41. Breezy, with a south wind 20 to 25 mph, with gusts as high as 45 mph. Chance of precipitation is 100%.
Tuesday
Showers likely, mainly before 7am. Mostly sunny, with a high near 45. West wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.
Tuesday Night
Mostly clear, with a low around 16.
Wednesday
Sunny, with a high near 34.
Wednesday Night
Mostly cloudy, with a low around 22.
Thursday
Partly sunny, with a high near 40.
Thursday Night
Mostly cloudy, with a low around 26.
Friday
Mostly sunny, with a high near 45.
Friday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 27.
Saturday
A chance of rain and snow. Mostly cloudy, with a high near 43. Chance of precipitation is 50%.
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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:
3:09 am EDT Mar 15, 2026
Forecast Valid:
7am EDT Mar 15, 2026-6pm EDT Mar 21, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation