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

64°F

18°C

Humidity 68%
Wind Speed Calm
Barometer 30.09 in (1018.9 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 14 Aug 10:51 pm EDT
Extended Forecast for

Yarmouth MESimilar City Names

  • Tonight

    Tonight: Mostly clear, with a low around 54. Northwest wind around 5 mph.

    Low: 54 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 79. Northwest wind around 5 mph.

    High: 79 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 53. West wind around 5 mph becoming northwest in the evening.

    Low: 53 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 76. Light and variable wind becoming south 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 76 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Rain, mainly after 11pm. Low around 60. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.

    Low: 60 °F

    Rain

  • Monday

    Monday: Rain before 11am, then a chance of showers between 11am and 2pm. High near 77. Chance of precipitation is 80%.

    High: 77 °F

    Rain then
    Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 57.

    Low: 57 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 54. Northwest wind around 5 mph.
Saturday
Sunny, with a high near 79. Northwest wind around 5 mph.
Saturday Night
Mostly clear, with a low around 53. West wind around 5 mph becoming northwest in the evening.
Sunday
Mostly sunny, with a high near 76. Light and variable wind becoming south 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Sunday Night
Rain, mainly after 11pm. Low around 60. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Monday
Rain before 11am, then a chance of showers between 11am and 2pm. High near 77. Chance of precipitation is 80%.
Monday Night
Partly cloudy, with a low around 57.
Tuesday
Sunny, with a high near 81.
Tuesday Night
Mostly clear, with a low around 57.
Wednesday
Sunny, with a high near 82.
Wednesday Night
A 30 percent chance of showers. Partly cloudy, with a low around 62.
Thursday
A 40 percent chance of showers. Partly sunny, with a high near 81.
Thursday Night
Partly cloudy, with a low around 56.
Friday
Sunny, with a high near 79.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Yarmouth MESimilar City Names
 43.79°N 70.2°W (Elev. 161 ft)
Last Update:
7:14 pm EDT Aug 14, 2026
Forecast Valid:
11pm EDT Aug 14, 2026-6pm EDT Aug 21, 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