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.

Overcast

45°F

7°C

Humidity 80%
Wind Speed Calm
Barometer 30.44 in (1030.9 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 11 Oct 8:51 am EDT
Extended Forecast for

Grand Beach ME

  • Today

    Today: Mostly cloudy, with a high near 61. Light southwest wind becoming south 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 61 °F

    Mostly Cloudy

  • Tonight

    Tonight: Showers, mainly before 5am. Areas of fog after 5am. Low around 45. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 45 °F

    Showers and
    Areas Fog

  • Columbus Day

    Columbus Day: A 30 percent chance of showers before 8am. Cloudy through mid morning, then gradual clearing, with a high near 69. North wind around 5 mph becoming calm. New precipitation amounts of less than a tenth of an inch possible.

    High: 69 °F

    Chance
    Showers then
    Sunny

  • Monday Night

    Monday Night: A 30 percent chance of rain after 2am. Increasing clouds, with a low around 42. Northeast wind 5 to 10 mph.

    Low: 42 °F

    Mostly Cloudy
    then Chance
    Rain

  • Tuesday

    Tuesday: Rain, mainly after 9am. High near 59. East wind 10 to 15 mph becoming southeast in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 80%.

    High: 59 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain before 2am, then showers likely after 2am. Low around 49. Chance of precipitation is 90%.

    Low: 49 °F

    Rain

  • Wednesday

    Wednesday: Showers likely, mainly before 7am. Partly sunny, with a high near 65. Chance of precipitation is 60%.

    High: 65 °F

    Showers
    Likely then
    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 58.

    High: 58 °F

    Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 61. Light southwest wind becoming south 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Tonight
Showers, mainly before 5am. Areas of fog after 5am. Low around 45. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Columbus Day
A 30 percent chance of showers before 8am. Cloudy through mid morning, then gradual clearing, with a high near 69. North wind around 5 mph becoming calm. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
A 30 percent chance of rain after 2am. Increasing clouds, with a low around 42. Northeast wind 5 to 10 mph.
Tuesday
Rain, mainly after 9am. High near 59. East wind 10 to 15 mph becoming southeast in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 80%.
Tuesday Night
Rain before 2am, then showers likely after 2am. Low around 49. Chance of precipitation is 90%.
Wednesday
Showers likely, mainly before 7am. Partly sunny, with a high near 65. Chance of precipitation is 60%.
Wednesday Night
Mostly clear, with a low around 40.
Thursday
Sunny, with a high near 58.
Thursday Night
Partly cloudy, with a low around 37.
Friday
A 50 percent chance of showers. Mostly cloudy, with a high near 59.
Friday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 41.
Saturday
A 40 percent chance of showers. Partly sunny, with a high near 57. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grand Beach ME
 43.54°N 70.36°W (Elev. 49 ft)
Last Update:
7:59 am EDT Oct 11, 2026
Forecast Valid:
9am EDT Oct 11, 2026-6pm EDT Oct 17, 2026
 
Forecast Discussion
 
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Additional Resources

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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