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.

A Few Clouds

61°F

16°C

Humidity 93%
Wind Speed N 7 mph
Barometer 30.04 in (1017.3 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 29 Jun 5:51 am EDT
Extended Forecast for

Long Island ME

Extreme Heat Watch July 1, 12:00pm until July 3, 08:00pm
Click here for hazard details and duration
Extreme Heat Watch

  • Today

    Today: Sunny, with a high near 74. Light and variable wind becoming south 5 to 10 mph in the afternoon.

    High: 74 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 61. Southwest wind 5 to 10 mph.

    Low: 61 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 74. South wind 5 to 15 mph.

    High: 74 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Showers likely, mainly after 11pm. Mostly cloudy, with a low around 64. Southwest wind around 10 mph. Chance of precipitation is 70%.

    Low: 64 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Mostly sunny, with a high near 79. South wind 5 to 10 mph.

    High: 79 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers before 2am. Mostly cloudy, with a low around 67.

    Low: 67 °F

    Chance
    Showers

  • Thursday

    Thursday: Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 70.

    Low: 70 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 74. Light and variable wind becoming south 5 to 10 mph in the afternoon.
Tonight
Partly cloudy, with a low around 61. Southwest wind 5 to 10 mph.
Tuesday
Partly sunny, with a high near 74. South wind 5 to 15 mph.
Tuesday Night
Showers likely, mainly after 11pm. Mostly cloudy, with a low around 64. Southwest wind around 10 mph. Chance of precipitation is 70%.
Wednesday
Mostly sunny, with a high near 79. South wind 5 to 10 mph.
Wednesday Night
A 40 percent chance of showers before 2am. Mostly cloudy, with a low around 67.
Thursday
Mostly sunny, with a high near 86.
Thursday Night
Partly cloudy, with a low around 70.
Friday
Mostly sunny, with a high near 81.
Friday Night
Partly cloudy, with a low around 66.
Independence Day
A 30 percent chance of showers. Partly sunny, with a high near 74.
Saturday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 63.
Sunday
A 30 percent chance of showers. Partly sunny, with a high near 71.
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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:
6:25 am EDT Jun 29, 2026
Forecast Valid:
6am EDT Jun 29, 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