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

41°F

5°C

Humidity 76%
Wind Speed SE 8 mph
Barometer 29.80 in (1009.1 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill36°F (2°C)
Last update 20 Mar 4:51 pm EDT
Extended Forecast for

Portland ME

  • This Afternoon

    This Afternoon: Rain likely. Cloudy, with a high near 43. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 43 °F

    Rain Likely

  • Tonight

    Tonight: Rain, mainly before 11pm. Low around 35. South wind 5 to 10 mph becoming west after midnight. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 35 °F

    Rain then
    Slight Chance
    Rain

  • Saturday

    Saturday: Mostly cloudy through mid morning, then gradual clearing, with a high near 45. Northwest wind around 10 mph, with gusts as high as 20 mph.

    High: 45 °F

    Becoming
    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 31. Northwest wind around 5 mph becoming calm after midnight.

    Low: 31 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Snow before 3pm, then rain and snow between 3pm and 4pm, then rain after 4pm. High near 39. Southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    High: 39 °F

    Snow then
    Rain/Snow

  • Sunday Night

    Sunday Night: Rain before 8pm, then rain and snow likely between 8pm and 11pm, then a chance of snow after 11pm. Low around 29. Chance of precipitation is 80%.

    Low: 29 °F

    Rain/Snow
    then Chance
    Snow

  • Monday

    Monday: A 50 percent chance of snow. Mostly cloudy, with a high near 37.

    High: 37 °F

    Chance Snow

  • Monday Night

    Monday Night: A 30 percent chance of snow before 10pm. Mostly cloudy, with a low around 24.

    Low: 24 °F

    Chance Snow
    then Mostly
    Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 39.

    High: 39 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Rain likely. Cloudy, with a high near 43. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Rain, mainly before 11pm. Low around 35. South wind 5 to 10 mph becoming west after midnight. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Mostly cloudy through mid morning, then gradual clearing, with a high near 45. Northwest wind around 10 mph, with gusts as high as 20 mph.
Saturday Night
Increasing clouds, with a low around 31. Northwest wind around 5 mph becoming calm after midnight.
Sunday
Snow before 3pm, then rain and snow between 3pm and 4pm, then rain after 4pm. High near 39. Southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Sunday Night
Rain before 8pm, then rain and snow likely between 8pm and 11pm, then a chance of snow after 11pm. Low around 29. Chance of precipitation is 80%.
Monday
A 50 percent chance of snow. Mostly cloudy, with a high near 37.
Monday Night
A 30 percent chance of snow before 10pm. Mostly cloudy, with a low around 24.
Tuesday
Mostly sunny, with a high near 39.
Tuesday Night
Mostly cloudy, with a low around 28.
Wednesday
A chance of rain and snow. Mostly cloudy, with a high near 43. Chance of precipitation is 40%.
Wednesday Night
Mostly cloudy, with a low around 24.
Thursday
Mostly sunny, with a high near 41.
Thursday Night
Rain and snow likely. Mostly cloudy, with a low around 30. Chance of precipitation is 60%.
Friday
A chance of rain and snow. Partly sunny, with a high near 43.
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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:
2:22 pm EDT Mar 20, 2026
Forecast Valid:
5pm EDT Mar 20, 2026-6pm EDT Mar 27, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation