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.

Overcast

79°F

26°C

Humidity 74%
Wind Speed E 7 mph
Barometer 29.94 in (1013.8 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 8 Aug 12:51 pm EDT
Extended Forecast for

Portland ME

  • This Afternoon

    This Afternoon: Isolated showers, then scattered showers and thunderstorms after 2pm. Partly sunny, with a high near 76. Southeast wind around 5 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 76 °F

    Scattered
    T-storms

  • Tonight

    Tonight: Scattered showers and thunderstorms before 11pm, then isolated showers between 11pm and midnight. Partly cloudy, with a low around 66. Calm wind. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 66 °F

    Scattered
    T-storms then
    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 82. Light and variable wind becoming south 5 to 10 mph in the afternoon.

    High: 82 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 66. Northwest wind around 5 mph.

    Low: 66 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 81. West wind 5 to 10 mph becoming south in the afternoon. Winds could gust as high as 20 mph.

    High: 81 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 66.

    Low: 66 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 64.

    Low: 64 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Isolated showers, then scattered showers and thunderstorms after 2pm. Partly sunny, with a high near 76. Southeast wind around 5 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Scattered showers and thunderstorms before 11pm, then isolated showers between 11pm and midnight. Partly cloudy, with a low around 66. Calm wind. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
Mostly sunny, with a high near 82. Light and variable wind becoming south 5 to 10 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 66. Northwest wind around 5 mph.
Monday
Sunny, with a high near 81. West wind 5 to 10 mph becoming south in the afternoon. Winds could gust as high as 20 mph.
Monday Night
Partly cloudy, with a low around 66.
Tuesday
Mostly sunny, with a high near 82.
Tuesday Night
Partly cloudy, with a low around 64.
Wednesday
Mostly sunny, with a high near 81.
Wednesday Night
Partly cloudy, with a low around 63.
Thursday
A 30 percent chance of showers. Mostly sunny, with a high near 80.
Thursday Night
A 30 percent chance of showers. Partly cloudy, with a low around 61.
Friday
Sunny, with a high near 79.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Portland ME
 43.66°N 70.27°W (Elev. 7 ft)
Last Update:
5:08 am EDT Aug 8, 2026
Forecast Valid:
1pm EDT Aug 8, 2026-6pm EDT Aug 14, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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