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.

A Few Clouds

73°F

23°C

Humidity 44%
Wind Speed N 9 mph
Barometer 30.05 in (1017.4 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 18 Jul 7:51 pm EDT
Extended Forecast for

2 Miles NW Cousins Island ME

  • Tonight

    Tonight: Clear, with a low around 57. Northwest wind around 5 mph becoming calm in the evening.

    Low: 57 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 78. Light and variable wind becoming south 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 78 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 64. Southwest wind 5 to 10 mph.

    Low: 64 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of showers between noon and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 77. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.

    High: 77 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of thunderstorms before 7pm. Partly cloudy, with a low around 59. Northwest wind around 5 mph. Chance of precipitation is 30%.

    Low: 59 °F

    Chance
    T-storms then
    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

  • Tuesday Night

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

    Low: 57 °F

    Partly Cloudy

Detailed Forecast

Tonight
Clear, with a low around 57. Northwest wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 78. Light and variable wind becoming south 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Saturday Night
Mostly cloudy, with a low around 64. Southwest wind 5 to 10 mph.
Sunday
A chance of showers between noon and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 77. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.
Sunday Night
A chance of thunderstorms before 7pm. Partly cloudy, with a low around 59. Northwest wind around 5 mph. Chance of precipitation is 30%.
Monday
Sunny, with a high near 74.
Monday Night
Mostly clear, with a low around 54.
Tuesday
Sunny, with a high near 75.
Tuesday Night
Partly cloudy, with a low around 57.
Wednesday
Mostly sunny, with a high near 76.
Wednesday Night
Partly cloudy, with a low around 62.
Thursday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 79.
Thursday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66.
Friday
Mostly sunny, with a high near 82.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NW Cousins Island ME
 43.78°N 70.17°W (Elev. 13 ft)
Last Update:
6:38 pm EDT Jul 18, 2025
Forecast Valid:
8pm EDT Jul 18, 2025-6pm EDT Jul 25, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation