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.

Light Rain

71°F

22°C

Humidity 90%
Wind Speed Calm
Barometer 30.04 in (1017.4 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 14 Jul 8:51 pm EDT
Extended Forecast for

Portland ME

  • Tonight

    Tonight: A chance of showers and thunderstorms. Patchy fog after 11pm. Otherwise, cloudy, with a low around 66. South wind around 5 mph becoming calm in the evening. 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

    Chance
    T-storms and
    Patchy Fog

  • Tuesday

    Tuesday: Areas of fog before 9am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 79. Calm wind becoming south around 5 mph in the afternoon.

    High: 79 °F

    Areas Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog after midnight. Otherwise, mostly clear, with a low around 66. South wind around 5 mph becoming calm in the evening.

    Low: 66 °F

    Mostly Clear
    then Patchy
    Fog

  • Wednesday

    Wednesday: Mostly sunny, with a high near 80. Light south wind increasing to 5 to 10 mph in the afternoon.

    High: 80 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 68. Southwest wind around 5 mph.

    Low: 68 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 80.

    High: 80 °F

    Partly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 70.

    Low: 70 °F

    Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: A 30 percent chance of showers after 2pm. Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: A 30 percent chance of showers before 8pm. Mostly cloudy, with a low around 63.

    Low: 63 °F

    Chance
    Showers then
    Mostly Cloudy

Detailed Forecast

Tonight
A chance of showers and thunderstorms. Patchy fog after 11pm. Otherwise, cloudy, with a low around 66. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
Areas of fog before 9am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 79. Calm wind becoming south around 5 mph in the afternoon.
Tuesday Night
Patchy fog after midnight. Otherwise, mostly clear, with a low around 66. South wind around 5 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 80. Light south wind increasing to 5 to 10 mph in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 68. Southwest wind around 5 mph.
Thursday
A 40 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 80.
Thursday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 70.
Friday
A 30 percent chance of showers after 2pm. Mostly sunny, with a high near 78.
Friday Night
A 30 percent chance of showers before 8pm. Mostly cloudy, with a low around 63.
Saturday
Mostly sunny, with a high near 75.
Saturday Night
Partly cloudy, with a low around 63.
Sunday
A 30 percent chance of showers. Partly sunny, with a high near 74.
Sunday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 63.
Monday
Mostly sunny, with a high near 74.
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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:
7:55 pm EDT Jul 14, 2025
Forecast Valid:
9pm EDT Jul 14, 2025-6pm EDT Jul 21, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation