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.

Mostly Cloudy

43°F

6°C

Humidity 82%
Wind Speed N 3 mph
Barometer 30.19 in (1022.2 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Last update 15 Oct 10:51 pm EDT
Extended Forecast for

Cousins Island ME

  • Tonight

    Tonight: Mostly cloudy, with a low around 45. Calm wind becoming east around 5 mph.

    Low: 45 °F

    Mostly Cloudy

  • Friday

    Friday: Rain. High near 64. Breezy, with a south wind 10 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 64 °F

    Rain and
    Breezy

  • Friday Night

    Friday Night: Showers, mainly before 8pm. Low around 42. Southwest wind 10 to 15 mph becoming northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 42 °F

    Showers then
    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 50. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 25 mph.

    High: 50 °F

    Mostly Cloudy
    then Mostly
    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 35. Northwest wind 5 to 10 mph.

    Low: 35 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 54.

    High: 54 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 59.

    High: 59 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 45. Calm wind becoming east around 5 mph.
Friday
Rain. High near 64. Breezy, with a south wind 10 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night
Showers, mainly before 8pm. Low around 42. Southwest wind 10 to 15 mph becoming northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 50. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 25 mph.
Saturday Night
Mostly clear, with a low around 35. Northwest wind 5 to 10 mph.
Sunday
Sunny, with a high near 54.
Sunday Night
Mostly clear, with a low around 39.
Monday
Sunny, with a high near 59.
Monday Night
Partly cloudy, with a low around 41.
Tuesday
Mostly sunny, with a high near 61.
Tuesday Night
Partly cloudy, with a low around 43.
Wednesday
Sunny, with a high near 59.
Wednesday Night
Mostly clear, with a low around 39.
Thursday
Mostly sunny, with a high near 55.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Cousins Island ME
 43.76°N 70.15°W (Elev. 3 ft)
Last Update:
8:14 pm EDT Oct 15, 2026
Forecast Valid:
11pm EDT Oct 15, 2026-6pm EDT Oct 22, 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