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.

Fog/Mist

39°F

4°C

Humidity 100%
Wind Speed S 9 mph
Barometer 30.32 in (1026.7 mb)
Dewpoint 39°F (4°C)
Visibility 1.00 mi
Wind Chill33°F (1°C)
Last update 3 Apr 9:51 am EDT
Extended Forecast for

Yarmouth ME

  • Today

    Today: A 50 percent chance of showers, mainly before 1pm. Patchy fog before 3pm. Otherwise, mostly cloudy, with a high near 46. South wind 5 to 10 mph. New precipitation amounts of less than a tenth of an inch possible.

    High: 46 °F

    Chance
    Showers and
    Patchy Fog

  • Tonight

    Tonight: Patchy fog after 8pm. Otherwise, mostly cloudy, with a low around 42. South wind around 5 mph.

    Low: 42 °F

    Patchy Fog

  • Saturday

    Saturday: Mostly sunny, with a high near 51. North wind 5 to 10 mph becoming east in the afternoon.

    High: 51 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Showers, mainly after 1am. Low around 34. Southeast wind around 5 mph. Chance of precipitation is 80%.

    Low: 34 °F

    Chance
    Showers then
    Showers

  • Sunday

    Sunday: Showers. High near 52. Southeast wind around 5 mph becoming southwest in the afternoon. Chance of precipitation is 100%.

    High: 52 °F

    Showers

  • Sunday Night

    Sunday Night: Showers likely, mainly before 7pm. Mostly cloudy, with a low around 34. Chance of precipitation is 60%.

    Low: 34 °F

    Showers
    Likely then
    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 47.

    High: 47 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 28.

    Low: 28 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 44.

    High: 44 °F

    Mostly Sunny

Detailed Forecast

Today
A 50 percent chance of showers, mainly before 1pm. Patchy fog before 3pm. Otherwise, mostly cloudy, with a high near 46. South wind 5 to 10 mph. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Patchy fog after 8pm. Otherwise, mostly cloudy, with a low around 42. South wind around 5 mph.
Saturday
Mostly sunny, with a high near 51. North wind 5 to 10 mph becoming east in the afternoon.
Saturday Night
Showers, mainly after 1am. Low around 34. Southeast wind around 5 mph. Chance of precipitation is 80%.
Sunday
Showers. High near 52. Southeast wind around 5 mph becoming southwest in the afternoon. Chance of precipitation is 100%.
Sunday Night
Showers likely, mainly before 7pm. Mostly cloudy, with a low around 34. Chance of precipitation is 60%.
Monday
Mostly sunny, with a high near 47.
Monday Night
Partly cloudy, with a low around 28.
Tuesday
Mostly sunny, with a high near 44.
Tuesday Night
Partly cloudy, with a low around 23.
Wednesday
Sunny, with a high near 44.
Wednesday Night
Mostly clear, with a low around 30.
Thursday
Mostly sunny, with a high near 54.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Yarmouth ME
 43.78°N 70.17°W (Elev. 13 ft)
Last Update:
9:56 am EDT Apr 3, 2026
Forecast Valid:
10am EDT Apr 3, 2026-6pm EDT Apr 9, 2026
 
Forecast Discussion
 
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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