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

46°F

8°C

Humidity 73%
Wind Speed Calm
Barometer 30.20 in (1022.6 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Last update 15 Oct 8:51 pm EDT
Extended Forecast for

Chebeague Island ME

  • Tonight

    Tonight: Mostly cloudy, with a low around 47. North wind around 5 mph becoming east after midnight.

    Low: 47 °F

    Mostly Cloudy

  • Friday

    Friday: Rain. High near 63. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 63 °F

    Rain and
    Breezy

  • Friday Night

    Friday Night: Showers, mainly before 8pm. Low around 43. Breezy, with a southwest wind 15 to 20 mph becoming northwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 43 °F

    Showers then
    Mostly Cloudy
    and Breezy

  • 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 30 mph.

    High: 50 °F

    Decreasing
    Clouds and
    Breezy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 36. Northwest wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 36 °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 41.

    Low: 41 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 57.

    High: 57 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 47. North wind around 5 mph becoming east after midnight.
Friday
Rain. High near 63. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 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 43. Breezy, with a southwest wind 15 to 20 mph becoming northwest after midnight. Winds could gust as high as 25 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 30 mph.
Saturday Night
Mostly clear, with a low around 36. Northwest wind 10 to 15 mph, with gusts as high as 20 mph.
Sunday
Sunny, with a high near 54.
Sunday Night
Mostly clear, with a low around 41.
Monday
Sunny, with a high near 57.
Monday Night
Partly cloudy, with a low around 44.
Tuesday
Mostly sunny, with a high near 60.
Tuesday Night
Partly cloudy, with a low around 45.
Wednesday
Sunny, with a high near 58.
Wednesday Night
Mostly clear, with a low around 42.
Thursday
Mostly sunny, with a high near 55.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chebeague Island ME
 43.73°N 70.13°W (Elev. 7 ft)
Last Update:
8:14 pm EDT Oct 15, 2026
Forecast Valid:
9pm EDT Oct 15, 2026-6pm EDT Oct 22, 2026
 
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