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.

Light Rain

55°F

13°C

Humidity 96%
Wind Speed N 7 mph
Barometer 29.87 in (1011.6 mb)
Dewpoint 54°F (12°C)
Visibility 7.00 mi
Wind Chill53°F (12°C)
Last update 29 Sep 1:51 am EDT
Extended Forecast for

Yarmouth MESimilar City Names

  • Overnight

    Overnight: Rain likely. Cloudy, with a low around 53. North wind 5 to 10 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 53 °F

    Rain Likely

  • Tuesday

    Tuesday: A chance of rain before 10am, then a slight chance of showers between 10am and 3pm. Mostly cloudy, with a high near 65. North wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 65 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: Patchy fog. Otherwise, mostly cloudy, with a low around 50. North wind around 5 mph becoming calm.

    Low: 50 °F

    Patchy Fog

  • Wednesday

    Wednesday: Patchy fog before 10am. Otherwise, partly sunny, with a high near 70. Calm wind becoming south around 5 mph in the afternoon.

    High: 70 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 49. South wind around 5 mph becoming calm.

    Low: 49 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 78.

    High: 78 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 50.

    Low: 50 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Rain likely. Cloudy, with a low around 53. North wind 5 to 10 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday
A chance of rain before 10am, then a slight chance of showers between 10am and 3pm. Mostly cloudy, with a high near 65. North wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 50. North wind around 5 mph becoming calm.
Wednesday
Patchy fog before 10am. Otherwise, partly sunny, with a high near 70. Calm wind becoming south around 5 mph in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 49. South wind around 5 mph becoming calm.
Thursday
Mostly sunny, with a high near 76.
Thursday Night
Partly cloudy, with a low around 60.
Friday
Partly sunny, with a high near 78.
Friday Night
Mostly cloudy, with a low around 50.
Saturday
Mostly sunny, with a high near 69.
Saturday Night
Mostly cloudy, with a low around 41.
Sunday
A 40 percent chance of showers. Partly sunny, with a high near 64.
Sunday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 42.
Monday
Mostly sunny, with a high near 66.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Yarmouth MESimilar City Names
 43.79°N 70.2°W (Elev. 161 ft)
Last Update:
1:52 am EDT Sep 29, 2026
Forecast Valid:
2am EDT Sep 29, 2026-6pm EDT Oct 5, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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