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

40°F

4°C

Humidity 97%
Wind Speed Calm
Barometer 29.88 in (1012.0 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 23 Apr 4:51 am EDT
Extended Forecast for

Portland ME

  • Overnight

    Overnight: A 20 percent chance of showers. Mostly cloudy, with a low around 41. Southwest wind around 5 mph.

    Low: 41 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: A 30 percent chance of showers, mainly between 7am and 8am. Mostly cloudy, then gradually becoming sunny, with a high near 51. Northwest wind 5 to 15 mph, with gusts as high as 25 mph. New precipitation amounts of less than a tenth of an inch possible.

    High: 51 °F

    Chance
    Showers then
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 36. North wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 36 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 50. North wind 5 to 10 mph.

    High: 50 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 36. North wind around 5 mph.

    Low: 36 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 49.

    High: 49 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 38.

    Low: 38 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 51.

    High: 51 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 41.

    Low: 41 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A 20 percent chance of showers. Mostly cloudy, with a low around 41. Southwest wind around 5 mph.
Thursday
A 30 percent chance of showers, mainly between 7am and 8am. Mostly cloudy, then gradually becoming sunny, with a high near 51. Northwest wind 5 to 15 mph, with gusts as high as 25 mph. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Mostly clear, with a low around 36. North wind 5 to 10 mph, with gusts as high as 20 mph.
Friday
Mostly sunny, with a high near 50. North wind 5 to 10 mph.
Friday Night
Partly cloudy, with a low around 36. North wind around 5 mph.
Saturday
Mostly sunny, with a high near 49.
Saturday Night
Mostly cloudy, with a low around 38.
Sunday
Partly sunny, with a high near 51.
Sunday Night
Mostly cloudy, with a low around 41.
Monday
Partly sunny, with a high near 51.
Monday Night
Partly cloudy, with a low around 42.
Tuesday
A 30 percent chance of showers. Partly sunny, with a high near 49.
Tuesday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 41.
Wednesday
A 50 percent chance of showers. Mostly cloudy, with a high near 47.
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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:
2:26 am EDT Apr 23, 2026
Forecast Valid:
5am EDT Apr 23, 2026-6pm EDT Apr 29, 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