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

64°F

18°C

Humidity 96%
Wind Speed Calm
Barometer 30.01 in (1016.1 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 28 Jun 11:51 pm EDT
Extended Forecast for

Long Island ME

  • Tonight

    Tonight: Partly cloudy, with a low around 59. Southwest wind around 5 mph becoming northwest after midnight.

    Low: 59 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 72. Light and variable wind becoming south 5 to 10 mph in the afternoon.

    High: 72 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 60. Southwest wind 5 to 10 mph.

    Low: 60 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of showers after 5pm. Partly sunny, with a high near 70. South wind 5 to 15 mph.

    High: 70 °F

    Partly Sunny
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: Showers likely, mainly between 10pm and 2am. Mostly cloudy, with a low around 62. South wind around 10 mph. Chance of precipitation is 60%.

    Low: 62 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A 30 percent chance of showers before 8am. Partly sunny, with a high near 76.

    High: 76 °F

    Chance
    Showers then
    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 65.

    Low: 65 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 67.

    Low: 67 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 59. Southwest wind around 5 mph becoming northwest after midnight.
Monday
Sunny, with a high near 72. Light and variable wind becoming south 5 to 10 mph in the afternoon.
Monday Night
Mostly cloudy, with a low around 60. Southwest wind 5 to 10 mph.
Tuesday
A 30 percent chance of showers after 5pm. Partly sunny, with a high near 70. South wind 5 to 15 mph.
Tuesday Night
Showers likely, mainly between 10pm and 2am. Mostly cloudy, with a low around 62. South wind around 10 mph. Chance of precipitation is 60%.
Wednesday
A 30 percent chance of showers before 8am. Partly sunny, with a high near 76.
Wednesday Night
Mostly cloudy, with a low around 65.
Thursday
Mostly sunny, with a high near 83.
Thursday Night
Partly cloudy, with a low around 67.
Friday
A 30 percent chance of showers after 3pm. Mostly sunny, with a high near 82.
Friday Night
A 30 percent chance of showers. Partly cloudy, with a low around 65.
Independence Day
A 30 percent chance of showers. Mostly sunny, with a high near 77.
Saturday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 61.
Sunday
A 40 percent chance of showers. Partly sunny, with a high near 72.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Long Island ME
 43.69°N 70.17°W (Elev. 0 ft)
Last Update:
8:38 pm EDT Jun 28, 2026
Forecast Valid:
11pm EDT Jun 28, 2026-6pm EDT Jul 5, 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