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.

Fog/Mist

35°F

2°C

Humidity 100%
Wind Speed N 3 mph
Barometer 29.59 in (1002.2 mb)
Dewpoint 35°F (2°C)
Visibility 0.75 mi
Last update 12 Mar 1:51 am EDT
Extended Forecast for

Portland ME

  • Overnight

    Overnight: Showers likely and possibly a thunderstorm before 4am, then scattered showers and thunderstorms after 4am. Patchy dense fog. Otherwise, cloudy, with a low around 36. South wind around 10 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 36 °F

    Showers
    Likely and
    Patchy Dense
    Fog

  • Thursday

    Thursday: Rain showers likely before 5pm, then a chance of rain and snow showers. Patchy dense fog before 10am. Otherwise, cloudy, with a high near 49. Southwest wind 10 to 15 mph becoming west in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 49 °F

    Showers
    Likely and
    Patchy Dense
    Fog then
    Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: A 30 percent chance of snow showers, mainly before 7pm. Cloudy during the early evening, then gradual clearing, with a low around 25. Northwest wind around 10 mph, with gusts as high as 20 mph.

    Low: 25 °F

    Chance Snow
    Showers then
    Mostly Clear

  • Friday

    Friday: Increasing clouds, with a high near 39. West wind 5 to 10 mph becoming south in the afternoon. Winds could gust as high as 20 mph.

    High: 39 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: A chance of rain and snow after 7pm. Mostly cloudy, with a low around 36. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.

    Low: 36 °F

    Chance
    Rain/Snow

  • Saturday

    Saturday: Mostly sunny, with a high near 43.

    High: 43 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 25.

    Low: 25 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 39.

    High: 39 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Rain likely, possibly mixed with snow, mainly after 5am. Cloudy, with a low around 32. Chance of precipitation is 60%.

    Low: 32 °F

    Cloudy then
    Rain/Snow
    Likely

Detailed Forecast

Overnight
Showers likely and possibly a thunderstorm before 4am, then scattered showers and thunderstorms after 4am. Patchy dense fog. Otherwise, cloudy, with a low around 36. South wind around 10 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
Rain showers likely before 5pm, then a chance of rain and snow showers. Patchy dense fog before 10am. Otherwise, cloudy, with a high near 49. Southwest wind 10 to 15 mph becoming west in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Thursday Night
A 30 percent chance of snow showers, mainly before 7pm. Cloudy during the early evening, then gradual clearing, with a low around 25. Northwest wind around 10 mph, with gusts as high as 20 mph.
Friday
Increasing clouds, with a high near 39. West wind 5 to 10 mph becoming south in the afternoon. Winds could gust as high as 20 mph.
Friday Night
A chance of rain and snow after 7pm. Mostly cloudy, with a low around 36. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
Saturday
Mostly sunny, with a high near 43.
Saturday Night
Partly cloudy, with a low around 25.
Sunday
Partly sunny, with a high near 39.
Sunday Night
Rain likely, possibly mixed with snow, mainly after 5am. Cloudy, with a low around 32. Chance of precipitation is 60%.
Monday
Rain. High near 51. Chance of precipitation is 90%.
Monday Night
Rain likely. Cloudy, with a low around 31. Chance of precipitation is 70%.
Tuesday
Partly sunny, with a high near 38.
Tuesday Night
Mostly clear, with a low around 19.
Wednesday
Sunny, with a high near 33.
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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:
8:25 pm EDT Mar 11, 2026
Forecast Valid:
2am EDT Mar 12, 2026-6pm EDT Mar 18, 2026
 
Forecast Discussion
 
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Additional Resources

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National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation