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

75°F

24°C

Humidity 55%
Wind Speed Calm
Barometer 29.77 in (1008.2 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 21 Jun 10:51 am EDT
Extended Forecast for

Portland ME

  • Today

    Today: Showers and thunderstorms likely, mainly before 4pm. Mostly cloudy, with a high near 71. Northwest wind around 5 mph becoming south in the afternoon. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 71 °F

    Showers
    Likely

  • Tonight

    Tonight: Partly cloudy, with a low around 56. Calm wind.

    Low: 56 °F

    Partly Cloudy

  • Monday

    Monday: A 30 percent chance of showers, mainly between 3pm and 5pm. Mostly cloudy, with a high near 69. Light and variable wind becoming southeast 5 to 10 mph in the afternoon. New precipitation amounts of less than a tenth of an inch possible.

    High: 69 °F

    Partly Sunny
    then Chance
    Showers

  • Monday Night

    Monday Night: Showers, mainly after 7pm. Low around 56. East wind 5 to 10 mph. Chance of precipitation is 100%.

    Low: 56 °F

    Showers

  • Tuesday

    Tuesday: A 50 percent chance of showers before 1pm. Mostly cloudy, with a high near 73. North wind 5 to 10 mph.

    High: 73 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny

Detailed Forecast

Today
Showers and thunderstorms likely, mainly before 4pm. Mostly cloudy, with a high near 71. Northwest wind around 5 mph becoming south in the afternoon. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Partly cloudy, with a low around 56. Calm wind.
Monday
A 30 percent chance of showers, mainly between 3pm and 5pm. Mostly cloudy, with a high near 69. Light and variable wind becoming southeast 5 to 10 mph in the afternoon. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Showers, mainly after 7pm. Low around 56. East wind 5 to 10 mph. Chance of precipitation is 100%.
Tuesday
A 50 percent chance of showers before 1pm. Mostly cloudy, with a high near 73. North wind 5 to 10 mph.
Tuesday Night
Partly cloudy, with a low around 58.
Wednesday
Sunny, with a high near 77.
Wednesday Night
Partly cloudy, with a low around 59.
Thursday
Mostly sunny, with a high near 73.
Thursday Night
A 40 percent chance of showers after 10pm. Mostly cloudy, with a low around 58.
Friday
Showers likely. Partly sunny, with a high near 70. Chance of precipitation is 60%.
Friday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 59.
Saturday
A 30 percent chance of showers. Partly sunny, with a high near 77.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Portland ME
 43.66°N 70.27°W (Elev. 7 ft)
Last Update:
6:39 am EDT Jun 21, 2026
Forecast Valid:
11am EDT Jun 21, 2026-6pm EDT Jun 27, 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