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

72°F

22°C

Humidity 71%
Wind Speed S 8 mph
Barometer 30.19 in (1022.4 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 6 Jul 4:51 pm EDT
Extended Forecast for

Grand Beach ME

  • Tonight

    Tonight: A 30 percent chance of showers, mainly after 5am. Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 59. Southeast wind around 5 mph becoming calm in the evening. New precipitation amounts of less than a tenth of an inch possible.

    Low: 59 °F

    Mostly Cloudy
    then Chance
    Showers and
    Patchy Fog

  • Tuesday

    Tuesday: Rain likely, mainly after noon. Mostly cloudy, with a high near 69. East wind 5 to 10 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 69 °F

    Rain Likely

  • Tuesday Night

    Tuesday Night: A 50 percent chance of showers, mainly before 1am. Patchy fog before 1am, then patchy fog after 4am. Otherwise, cloudy, with a low around 57. North wind around 5 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 57 °F

    Chance
    Showers and
    Patchy Fog

  • Wednesday

    Wednesday: Patchy fog before 7am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 75. Light and variable wind becoming southeast 5 to 10 mph in the afternoon.

    High: 75 °F

    Patchy Fog
    then Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 62. Southwest wind around 5 mph.

    Low: 62 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 68.

    Low: 68 °F

    Partly Cloudy

  • Friday

    Friday: A chance of showers between 1pm and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 85. Chance of precipitation is 40%.

    High: 85 °F

    Partly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 10pm. Mostly cloudy, with a low around 65. Chance of precipitation is 30%.

    Low: 65 °F

    Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

Tonight
A 30 percent chance of showers, mainly after 5am. Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 59. Southeast wind around 5 mph becoming calm in the evening. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
Rain likely, mainly after noon. Mostly cloudy, with a high near 69. East wind 5 to 10 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday Night
A 50 percent chance of showers, mainly before 1am. Patchy fog before 1am, then patchy fog after 4am. Otherwise, cloudy, with a low around 57. North wind around 5 mph. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Patchy fog before 7am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 75. Light and variable wind becoming southeast 5 to 10 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 62. Southwest wind around 5 mph.
Thursday
Mostly sunny, with a high near 85.
Thursday Night
Partly cloudy, with a low around 68.
Friday
A chance of showers between 1pm and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 85. Chance of precipitation is 40%.
Friday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 10pm. Mostly cloudy, with a low around 65. Chance of precipitation is 30%.
Saturday
Sunny, with a high near 83.
Saturday Night
Mostly clear, with a low around 64.
Sunday
Sunny, with a high near 82.
Sunday Night
Mostly clear, with a low around 64.
Monday
A 30 percent chance of showers. Mostly sunny, with a high near 82.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Grand Beach ME
 43.52°N 70.36°W (Elev. 0 ft)
Last Update:
2:31 pm EDT Jul 6, 2026
Forecast Valid:
5pm EDT Jul 6, 2026-6pm EDT Jul 13, 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