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.

Mostly Cloudy

59°F

15°C

Humidity 39%
Wind Speed S 12 mph
Barometer 30.31 in (1026.5 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 22 May 5:51 pm EDT
Extended Forecast for

Grand Beach ME

  • Tonight

    Tonight: Mostly cloudy, with a low around 42. South wind 5 to 10 mph becoming light and variable in the evening.

    Low: 42 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 61. Northeast wind 5 to 10 mph becoming southeast in the afternoon.

    High: 61 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Cloudy, with a low around 44. Calm wind.

    Low: 44 °F

    Cloudy

  • Sunday

    Sunday: Showers likely, mainly after 1pm. Cloudy, with a high near 56. Southeast wind 5 to 10 mph. Chance of precipitation is 70%.

    High: 56 °F

    Chance
    Showers then
    Showers
    Likely

  • Sunday Night

    Sunday Night: Rain. Low around 45. East wind 5 to 10 mph. Chance of precipitation is 100%.

    Low: 45 °F

    Rain

  • Memorial Day

    Memorial Day: Showers likely, mainly before 8am. Mostly cloudy, with a high near 66. Chance of precipitation is 60%.

    High: 66 °F

    Showers
    Likely

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 49.

    Low: 49 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 74.

    High: 74 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 53.

    Low: 53 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 42. South wind 5 to 10 mph becoming light and variable in the evening.
Saturday
Mostly cloudy, with a high near 61. Northeast wind 5 to 10 mph becoming southeast in the afternoon.
Saturday Night
Cloudy, with a low around 44. Calm wind.
Sunday
Showers likely, mainly after 1pm. Cloudy, with a high near 56. Southeast wind 5 to 10 mph. Chance of precipitation is 70%.
Sunday Night
Rain. Low around 45. East wind 5 to 10 mph. Chance of precipitation is 100%.
Memorial Day
Showers likely, mainly before 8am. Mostly cloudy, with a high near 66. Chance of precipitation is 60%.
Monday Night
Mostly cloudy, with a low around 49.
Tuesday
Mostly sunny, with a high near 74.
Tuesday Night
Partly cloudy, with a low around 53.
Wednesday
A 30 percent chance of showers after noon. Mostly sunny, with a high near 74.
Wednesday Night
Mostly clear, with a low around 50.
Thursday
Mostly sunny, with a high near 66.
Thursday Night
Partly cloudy, with a low around 47.
Friday
Mostly sunny, with a high near 64.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grand Beach ME
 43.54°N 70.36°W (Elev. 49 ft)
Last Update:
2:35 pm EDT May 22, 2026
Forecast Valid:
6pm EDT May 22, 2026-6pm EDT May 29, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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