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

46°F

8°C

Humidity 89%
Wind Speed Calm
Barometer 30.03 in (1016.7 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 18 Oct 10:51 pm EDT
Extended Forecast for

Trefethen ME

  • Tonight

    Tonight: Patchy fog after 5am. Otherwise, partly cloudy, with a low around 44. Southwest wind around 5 mph.

    Low: 44 °F

    Patchy Fog

  • Sunday

    Sunday: Patchy fog before 9am. Otherwise, mostly sunny, with a high near 58. South wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.

    High: 58 °F

    Patchy Fog
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Isolated showers before 2am, then isolated showers after 4am. Areas of fog after 5am. Otherwise, mostly cloudy, with a low around 54. South wind around 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    Low: 54 °F

    Partly Cloudy
    then Isolated
    Showers and
    Areas Fog

  • Monday

    Monday: Scattered showers before 10am, then rain, mainly after 10am. Areas of fog before 7am. High near 58. Breezy, with a southeast wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 80%.

    High: 58 °F

    Rain and
    Areas Fog

  • Monday Night

    Monday Night: Showers. Low around 51. Southeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.

    Low: 51 °F

    Showers

  • Tuesday

    Tuesday: A 40 percent chance of showers before 1pm. Mostly sunny, with a high near 57.

    High: 57 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers after 3am. Partly cloudy, with a low around 51.

    Low: 51 °F

    Partly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: Showers, mainly after 9am. High near 57. Chance of precipitation is 80%.

    High: 57 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers, mainly before 10pm. Low around 47. Chance of precipitation is 80%.

    Low: 47 °F

    Showers then
    Chance
    Showers

Detailed Forecast

Tonight
Patchy fog after 5am. Otherwise, partly cloudy, with a low around 44. Southwest wind around 5 mph.
Sunday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 58. South wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.
Sunday Night
Isolated showers before 2am, then isolated showers after 4am. Areas of fog after 5am. Otherwise, mostly cloudy, with a low around 54. South wind around 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Monday
Scattered showers before 10am, then rain, mainly after 10am. Areas of fog before 7am. High near 58. Breezy, with a southeast wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 80%.
Monday Night
Showers. Low around 51. Southeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Tuesday
A 40 percent chance of showers before 1pm. Mostly sunny, with a high near 57.
Tuesday Night
A 30 percent chance of showers after 3am. Partly cloudy, with a low around 51.
Wednesday
Showers, mainly after 9am. High near 57. Chance of precipitation is 80%.
Wednesday Night
Showers, mainly before 10pm. Low around 47. Chance of precipitation is 80%.
Thursday
Mostly sunny, with a high near 54.
Thursday Night
Mostly clear, with a low around 44.
Friday
Mostly sunny, with a high near 53.
Friday Night
Mostly clear, with a low around 42.
Saturday
Mostly sunny, with a high near 52.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Trefethen ME
 43.68°N 70.2°W (Elev. 16 ft)
Last Update:
10:30 pm EDT Oct 18, 2025
Forecast Valid:
11pm EDT Oct 18, 2025-6pm EDT Oct 25, 2025
 
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