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

37°F

3°C

Humidity 44%
Wind Speed S 12 G 18 mph
Barometer 29.99 in (1015.5 mb)
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Wind Chill29°F (-2°C)
Last update 13 Mar 1:51 pm EDT
Extended Forecast for

Portland International Jetport ME

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 39. Southwest wind around 10 mph.

    High: 39 °F

    Mostly Cloudy

  • Tonight

    Tonight: Snow likely before 2am, then snow, possibly mixed with rain. Low around 30. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    Low: 30 °F

    Chance Snow
    then
    Rain/Snow

  • Saturday

    Saturday: A slight chance of rain before 7am, then a chance of rain after 8am. Partly sunny, with a high near 45. West wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 45 °F

    Chance Rain

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 24. West wind 10 to 15 mph, with gusts as high as 35 mph.

    Low: 24 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 40. Calm wind becoming south around 5 mph in the afternoon.

    High: 40 °F

    Partly Sunny

  • Sunday Night

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

    Low: 31 °F

    Mostly Cloudy

  • Monday

    Monday: Rain, mainly after 7am. High near 50. Chance of precipitation is 100%.

    High: 50 °F

    Rain

  • Monday Night

    Monday Night: Rain. Low around 38. Breezy. Chance of precipitation is 100%.

    Low: 38 °F

    Rain and
    Breezy

  • Tuesday

    Tuesday: A 50 percent chance of rain before 10am. Partly sunny, with a high near 49.

    High: 49 °F

    Chance Rain
    then Mostly
    Sunny

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 39. Southwest wind around 10 mph.
Tonight
Snow likely before 2am, then snow, possibly mixed with rain. Low around 30. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Saturday
A slight chance of rain before 7am, then a chance of rain after 8am. Partly sunny, with a high near 45. West wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
Mostly clear, with a low around 24. West wind 10 to 15 mph, with gusts as high as 35 mph.
Sunday
Partly sunny, with a high near 40. Calm wind becoming south around 5 mph in the afternoon.
Sunday Night
Mostly cloudy, with a low around 31.
Monday
Rain, mainly after 7am. High near 50. Chance of precipitation is 100%.
Monday Night
Rain. Low around 38. Breezy. Chance of precipitation is 100%.
Tuesday
A 50 percent chance of rain before 10am. Partly sunny, with a high near 49.
Tuesday Night
Mostly clear, with a low around 18.
Wednesday
Sunny, with a high near 34.
Wednesday Night
Mostly cloudy, with a low around 21.
Thursday
Mostly cloudy, with a high near 40.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Portland International Jetport ME
 43.65°N 70.3°W (Elev. 52 ft)
Last Update:
1:41 pm EDT Mar 13, 2026
Forecast Valid:
2pm EDT Mar 13, 2026-6pm EDT Mar 19, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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