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.

A Few Clouds

47°F

8°C

Humidity 71%
Wind Speed NW 7 mph
Barometer 30.19 in (1022.4 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 19 Sep 5:51 am EDT
Extended Forecast for

Little Diamond Island Landing ME

  • Today

    Today: Sunny, with a high near 60. North wind 5 to 10 mph becoming southeast in the afternoon.

    High: 60 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 51. South wind 5 to 10 mph.

    Low: 51 °F

    Increasing
    Clouds

  • Sunday

    Sunday: A chance of showers between 2pm and 4pm, then rain after 4pm. High near 60. South wind 5 to 15 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 60 °F

    Mostly Cloudy
    then Rain

  • Sunday Night

    Sunday Night: Rain before midnight, then showers likely, mainly between midnight and 1am. Low around 51. East wind 5 to 10 mph becoming north after midnight. Chance of precipitation is 80%.

    Low: 51 °F

    Rain

  • Monday

    Monday: Mostly sunny, with a high near 61. North wind 10 to 15 mph.

    High: 61 °F

    Mostly Sunny

  • Monday Night

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

    Low: 49 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 58.

    High: 58 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 48.

    Low: 48 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 58.

    High: 58 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 60. North wind 5 to 10 mph becoming southeast in the afternoon.
Tonight
Increasing clouds, with a low around 51. South wind 5 to 10 mph.
Sunday
A chance of showers between 2pm and 4pm, then rain after 4pm. High near 60. South wind 5 to 15 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Rain before midnight, then showers likely, mainly between midnight and 1am. Low around 51. East wind 5 to 10 mph becoming north after midnight. Chance of precipitation is 80%.
Monday
Mostly sunny, with a high near 61. North wind 10 to 15 mph.
Monday Night
Mostly cloudy, with a low around 49.
Tuesday
Partly sunny, with a high near 58.
Tuesday Night
Partly cloudy, with a low around 48.
Wednesday
Mostly sunny, with a high near 58.
Wednesday Night
Partly cloudy, with a low around 48.
Thursday
Partly sunny, with a high near 58.
Thursday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 50.
Friday
A 30 percent chance of showers. Partly sunny, with a high near 59. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Little Diamond Island Landing ME
 43.66°N 70.21°W (Elev. 0 ft)
Last Update:
5:35 am EDT Sep 19, 2026
Forecast Valid:
6am EDT Sep 19, 2026-6pm EDT Sep 25, 2026
 
Forecast Discussion
 
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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