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

35°F

2°C

Humidity 100%
Wind Speed N 3 mph
Barometer 29.65 in (1004.3 mb)
Dewpoint 35°F (2°C)
Visibility 2.00 mi
Last update 11 Mar 11:51 pm EDT
Extended Forecast for

Yarmouth ME

  • Overnight

    Overnight: Scattered showers, then showers likely and possibly a thunderstorm after 2am. Areas of dense fog. Otherwise, cloudy, with a low around 36. South wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 36 °F

    Showers
    Likely and
    Areas Dense
    Fog

  • Thursday

    Thursday: Rain showers likely before 5pm, then a chance of rain and snow showers. Patchy dense fog before 9am. Otherwise, cloudy, with a high near 47. Southwest wind around 10 mph becoming west in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 47 °F

    Showers
    Likely and
    Patchy Dense
    Fog then
    Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: Cloudy during the early evening, then gradual clearing, with a low around 20. Northwest wind around 5 mph.

    Low: 20 °F

    Gradual
    Clearing

  • Friday

    Friday: Increasing clouds, with a high near 40. West wind 5 to 10 mph becoming south in the afternoon.

    High: 40 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: A chance of rain and snow before 10pm, then a chance of snow between 10pm and 4am, then a chance of rain and snow after 4am. Mostly cloudy, with a low around 31. South wind 5 to 10 mph. Chance of precipitation is 40%.

    Low: 31 °F

    Chance
    Rain/Snow

  • Saturday

    Saturday: Partly sunny, with a high near 44.

    High: 44 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 21.

    Low: 21 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 39.

    High: 39 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Rain and snow likely, mainly after 5am. Cloudy, with a low around 28. Chance of precipitation is 60%.

    Low: 28 °F

    Cloudy then
    Rain/Snow
    Likely

Detailed Forecast

Overnight
Scattered showers, then showers likely and possibly a thunderstorm after 2am. Areas of dense fog. Otherwise, cloudy, with a low around 36. South wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
Rain showers likely before 5pm, then a chance of rain and snow showers. Patchy dense fog before 9am. Otherwise, cloudy, with a high near 47. Southwest wind around 10 mph becoming west in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Thursday Night
Cloudy during the early evening, then gradual clearing, with a low around 20. Northwest wind around 5 mph.
Friday
Increasing clouds, with a high near 40. West wind 5 to 10 mph becoming south in the afternoon.
Friday Night
A chance of rain and snow before 10pm, then a chance of snow between 10pm and 4am, then a chance of rain and snow after 4am. Mostly cloudy, with a low around 31. South wind 5 to 10 mph. Chance of precipitation is 40%.
Saturday
Partly sunny, with a high near 44.
Saturday Night
Partly cloudy, with a low around 21.
Sunday
Partly sunny, with a high near 39.
Sunday Night
Rain and snow likely, mainly after 5am. Cloudy, with a low around 28. Chance of precipitation is 60%.
Monday
Rain and snow likely before 8am, then rain. High near 51. Chance of precipitation is 90%.
Monday Night
Rain likely. Mostly cloudy, with a low around 27. Chance of precipitation is 70%.
Tuesday
Partly sunny, with a high near 38.
Tuesday Night
Mostly clear, with a low around 14.
Wednesday
Sunny, with a high near 33.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Yarmouth ME
 43.78°N 70.17°W (Elev. 13 ft)
Last Update:
8:25 pm EDT Mar 11, 2026
Forecast Valid:
12am EDT Mar 12, 2026-6pm EDT Mar 18, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation