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.

Mostly Cloudy

66°F

19°C

Humidity 87%
Wind Speed SE 6 mph
Barometer 30.00 in (1015.7 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 16 Aug 7:51 pm EDT
Extended Forecast for

Portland ME

  • Tonight

    Tonight: A 30 percent chance of showers, mainly after 3am. Mostly cloudy, with a low around 64. South wind 5 to 10 mph, with gusts as high as 20 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 64 °F

    Mostly Cloudy
    then Chance
    Showers

  • Monday

    Monday: Showers likely, mainly after 8am. Patchy fog after 2pm. Otherwise, cloudy, with a high near 69. South wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 69 °F

    Showers
    Likely and
    Patchy Fog

  • Monday Night

    Monday Night: A 40 percent chance of showers, mainly before 2am. Patchy fog before 8pm, then patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 63. South wind around 5 mph becoming calm in the evening. New precipitation amounts of less than a tenth of an inch possible.

    Low: 63 °F

    Chance
    Showers and
    Patchy Fog

  • Tuesday

    Tuesday: Partly sunny, with a high near 72. Northeast wind around 5 mph.

    High: 72 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 62. East wind around 5 mph becoming calm.

    Low: 62 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 74.

    High: 74 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 62.

    Low: 62 °F

    Partly Cloudy

  • Thursday

    Thursday: A 30 percent chance of showers after 10am. Partly sunny, with a high near 78.

    High: 78 °F

    Chance
    Showers

  • Thursday Night

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

    Low: 59 °F

    Partly Cloudy

Detailed Forecast

Tonight
A 30 percent chance of showers, mainly after 3am. Mostly cloudy, with a low around 64. South wind 5 to 10 mph, with gusts as high as 20 mph. New precipitation amounts of less than a tenth of an inch possible.
Monday
Showers likely, mainly after 8am. Patchy fog after 2pm. Otherwise, cloudy, with a high near 69. South wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
A 40 percent chance of showers, mainly before 2am. Patchy fog before 8pm, then patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 63. South wind around 5 mph becoming calm in the evening. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
Partly sunny, with a high near 72. Northeast wind around 5 mph.
Tuesday Night
Mostly cloudy, with a low around 62. East wind around 5 mph becoming calm.
Wednesday
Mostly sunny, with a high near 74.
Wednesday Night
Partly cloudy, with a low around 62.
Thursday
A 30 percent chance of showers after 10am. Partly sunny, with a high near 78.
Thursday Night
Partly cloudy, with a low around 59.
Friday
Sunny, with a high near 78.
Friday Night
Partly cloudy, with a low around 58.
Saturday
Mostly sunny, with a high near 76.
Saturday Night
Partly cloudy, with a low around 60.
Sunday
A 30 percent chance of showers. Mostly sunny, with a high near 77.
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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:
6:32 pm EDT Aug 16, 2026
Forecast Valid:
7pm EDT Aug 16, 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