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

38°F

3°C

Humidity 100%
Wind Speed Calm
Barometer 29.84 in (1010.6 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Last update 1 Apr 1:51 am EDT
Extended Forecast for

Yarmouth ME

  • Overnight

    Overnight: Showers likely and possibly a thunderstorm before 4am, then a chance of showers and thunderstorms, mainly between 4am and 5am. Areas of fog before 5am. Otherwise, cloudy, with a low around 37. Calm wind. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 37 °F

    Showers
    Likely and
    Areas Fog

  • Wednesday

    Wednesday: A 20 percent chance of showers before 9am. Areas of fog before 10am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 54. Light and variable wind becoming north 5 to 10 mph in the morning.

    High: 54 °F

    Slight Chance
    Showers and
    Areas Fog
    then Partly
    Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of rain before 2am, then a slight chance of snow between 2am and 3am, then a slight chance of sleet after 3am. Mostly cloudy, with a low around 30. Northeast wind around 5 mph. Chance of precipitation is 20%.

    Low: 30 °F

    Slight Chance
    Rain then
    Slight Chance
    Wintry Mix

  • Thursday

    Thursday: A chance of snow after 11am, mixing with sleet after 4pm. Mostly cloudy, with a high near 39. East wind around 5 mph. Chance of precipitation is 40%.

    High: 39 °F

    Chance Snow
    then Chance
    Snow/Sleet

  • Thursday Night

    Thursday Night: A chance of snow and sleet before 9pm, then a chance of rain and sleet between 9pm and 10pm, then rain likely after 10pm. Cloudy, with a low around 31. East wind around 5 mph becoming calm. Chance of precipitation is 60%. Little or no snow and sleet accumulation expected.

    Low: 31 °F

    Chance Wintry
    Mix then Rain
    Likely

  • Friday

    Friday: A 30 percent chance of rain before 9am. Mostly cloudy, with a high near 56.

    High: 56 °F

    Chance Rain
    then Mostly
    Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 41.

    Low: 41 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 57.

    High: 57 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 40 percent chance of rain after 8pm. Mostly cloudy, with a low around 36.

    Low: 36 °F

    Chance Rain

Detailed Forecast

Overnight
Showers likely and possibly a thunderstorm before 4am, then a chance of showers and thunderstorms, mainly between 4am and 5am. Areas of fog before 5am. Otherwise, cloudy, with a low around 37. Calm wind. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
A 20 percent chance of showers before 9am. Areas of fog before 10am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 54. Light and variable wind becoming north 5 to 10 mph in the morning.
Wednesday Night
A slight chance of rain before 2am, then a slight chance of snow between 2am and 3am, then a slight chance of sleet after 3am. Mostly cloudy, with a low around 30. Northeast wind around 5 mph. Chance of precipitation is 20%.
Thursday
A chance of snow after 11am, mixing with sleet after 4pm. Mostly cloudy, with a high near 39. East wind around 5 mph. Chance of precipitation is 40%.
Thursday Night
A chance of snow and sleet before 9pm, then a chance of rain and sleet between 9pm and 10pm, then rain likely after 10pm. Cloudy, with a low around 31. East wind around 5 mph becoming calm. Chance of precipitation is 60%. Little or no snow and sleet accumulation expected.
Friday
A 30 percent chance of rain before 9am. Mostly cloudy, with a high near 56.
Friday Night
Mostly cloudy, with a low around 41.
Saturday
Partly sunny, with a high near 57.
Saturday Night
A 40 percent chance of rain after 8pm. Mostly cloudy, with a low around 36.
Sunday
Rain likely, mainly after 11am. Cloudy, with a high near 56. Chance of precipitation is 60%.
Sunday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 36.
Monday
Partly sunny, with a high near 48.
Monday Night
Mostly clear, with a low around 28.
Tuesday
Partly sunny, with a high near 47.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Yarmouth ME
 43.81°N 70.2°W (Elev. 52 ft)
Last Update:
7:56 pm EDT Mar 31, 2026
Forecast Valid:
2am EDT Apr 1, 2026-6pm EDT Apr 7, 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