National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Portland, Portland International Jetport (KPWM)

Lat: 43.64°NLon: 70.3°WElev: 72ft.

Fair

57°F

14°C

Humidity 90%
Wind Speed Calm
Barometer 29.81 in (1009.5 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 17 Jun 12:51 am EDT
Extended Forecast for

Cousins Island ME

  • Overnight

    Overnight: Clear, with a low around 56. Southwest wind around 5 mph becoming calm.

    Low: 56 °F

    Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 71. Light and variable wind becoming southeast 5 to 10 mph in the afternoon.

    High: 71 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 55. South wind around 5 mph.

    Low: 55 °F

    Patchy Fog

  • Thursday

    Thursday: Showers, with thunderstorms also possible after 5pm. Patchy fog before noon. High near 69. Breezy, with a southeast wind 10 to 15 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 35 mph. Chance of precipitation is 90%.

    High: 69 °F

    Showers and
    Patchy Fog

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 59. Southwest wind around 10 mph. Chance of precipitation is 60%.

    Low: 59 °F

    Showers
    Likely then
    Chance
    Showers

  • Juneteenth

    Juneteenth: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 59.

    Low: 59 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

Detailed Forecast

Overnight
Clear, with a low around 56. Southwest wind around 5 mph becoming calm.
Wednesday
Mostly sunny, with a high near 71. Light and variable wind becoming southeast 5 to 10 mph in the afternoon.
Wednesday Night
Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 55. South wind around 5 mph.
Thursday
Showers, with thunderstorms also possible after 5pm. Patchy fog before noon. High near 69. Breezy, with a southeast wind 10 to 15 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 35 mph. Chance of precipitation is 90%.
Thursday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 59. Southwest wind around 10 mph. Chance of precipitation is 60%.
Juneteenth
Sunny, with a high near 77.
Friday Night
Mostly clear, with a low around 59.
Saturday
Mostly sunny, with a high near 73.
Saturday Night
Partly cloudy, with a low around 58.
Sunday
A 30 percent chance of showers after 3pm. Mostly sunny, with a high near 72.
Sunday Night
A 30 percent chance of showers. Partly cloudy, with a low around 57.
Monday
A 30 percent chance of showers. Partly sunny, with a high near 70.
Monday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 56.
Tuesday
A 30 percent chance of showers. Mostly sunny, with a high near 70.
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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:
1:15 am EDT Jun 17, 2026
Forecast Valid:
1am EDT Jun 17, 2026-6pm EDT Jun 23, 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