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

69°F

21°C

Humidity 73%
Wind Speed S 8 mph
Barometer 29.87 in (1011.3 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 17 Aug 1:51 pm EDT
Extended Forecast for

Portland ME

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 68. South wind around 15 mph, with gusts as high as 25 mph.

    High: 68 °F

    Mostly Cloudy

  • Tonight

    Tonight: A 20 percent chance of showers after 5am. Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 64. South wind around 5 mph becoming calm in the evening.

    Low: 64 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers and
    Patchy Fog

  • Tuesday

    Tuesday: A chance of showers before 4pm, then a slight chance of showers after 5pm. Cloudy, then gradually becoming mostly sunny, with a high near 73. Northeast wind around 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 73 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 63. Calm wind.

    Low: 63 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 76. Light and variable wind becoming south 5 to 10 mph in the afternoon.

    High: 76 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 63.

    Low: 63 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 68. South wind around 15 mph, with gusts as high as 25 mph.
Tonight
A 20 percent chance of showers after 5am. Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 64. South wind around 5 mph becoming calm in the evening.
Tuesday
A chance of showers before 4pm, then a slight chance of showers after 5pm. Cloudy, then gradually becoming mostly sunny, with a high near 73. Northeast wind around 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
Mostly cloudy, with a low around 63. Calm wind.
Wednesday
Mostly sunny, with a high near 76. Light and variable wind becoming south 5 to 10 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 63.
Thursday
Mostly sunny, with a high near 76.
Thursday Night
Mostly clear, with a low around 60.
Friday
Sunny, with a high near 79.
Friday Night
Partly cloudy, with a low around 60.
Saturday
Mostly sunny, with a high near 76.
Saturday Night
Mostly cloudy, with a low around 60.
Sunday
A 30 percent chance of showers. Partly sunny, with a high near 75.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Portland ME
 43.66°N 70.27°W (Elev. 7 ft)
Last Update:
12:27 pm EDT Aug 17, 2026
Forecast Valid:
2pm EDT Aug 17, 2026-6pm EDT Aug 23, 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