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

75°F

24°C

Humidity 76%
Wind Speed S 12 mph
Barometer 29.82 in (1009.8 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 19 Aug 1:51 pm EDT
Extended Forecast for

Portland ME

  • This Afternoon

    This Afternoon: Patchy fog after 3pm. Otherwise, partly sunny, with a high near 74. South wind around 10 mph.

    High: 74 °F

    Patchy Fog

  • Tonight

    Tonight: Patchy fog. Otherwise, partly cloudy, with a low around 64. South wind around 5 mph becoming west after midnight.

    Low: 64 °F

    Patchy Fog

  • Thursday

    Thursday: Partly sunny, with a high near 74. Northwest wind around 5 mph becoming southeast in the afternoon.

    High: 74 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Cloudy during the early evening, then gradual clearing, with a low around 62. South wind around 5 mph becoming calm.

    Low: 62 °F

    Gradual
    Clearing

  • Friday

    Friday: Sunny, with a high near 73. North wind around 5 mph becoming southeast in the afternoon.

    High: 73 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy

  • Saturday

    Saturday: A 40 percent chance of showers after 10am. Mostly cloudy, with a high near 69.

    High: 69 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 60.

    Low: 60 °F

    Chance
    Showers

  • Sunday

    Sunday: A 40 percent chance of showers. Mostly cloudy, with a high near 75.

    High: 75 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Patchy fog after 3pm. Otherwise, partly sunny, with a high near 74. South wind around 10 mph.
Tonight
Patchy fog. Otherwise, partly cloudy, with a low around 64. South wind around 5 mph becoming west after midnight.
Thursday
Partly sunny, with a high near 74. Northwest wind around 5 mph becoming southeast in the afternoon.
Thursday Night
Cloudy during the early evening, then gradual clearing, with a low around 62. South wind around 5 mph becoming calm.
Friday
Sunny, with a high near 73. North wind around 5 mph becoming southeast in the afternoon.
Friday Night
Partly cloudy, with a low around 60.
Saturday
A 40 percent chance of showers after 10am. Mostly cloudy, with a high near 69.
Saturday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 60.
Sunday
A 40 percent chance of showers. Mostly cloudy, with a high near 75.
Sunday Night
A 40 percent chance of showers before 1am. Mostly cloudy, with a low around 61.
Monday
Sunny, with a high near 79.
Monday Night
Mostly clear, with a low around 58.
Tuesday
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:
2:20 pm EDT Aug 19, 2026
Forecast Valid:
2pm EDT Aug 19, 2026-6pm EDT Aug 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