National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Portland, Portland International Jetport (KPWM)

Lat: 43.64°NLon: 70.3°WElev: 72ft.

Freezing Rain Fog/Mist

31°F

-1°C

Humidity 100%
Wind Speed Calm
Barometer 29.70 in (1005.7 mb)
Dewpoint 31°F (-1°C)
Visibility 3.00 mi
Last update 29 Dec 3:51 am EST
Extended Forecast for

Portland International Jetport ME

Winter Weather Advisory December 29, 04:36am until December 29, 07:00pm
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory December 29, 04:36am until December 29, 07:00pm

    NOW until 7:00pm Mon

    Winter Weather Advisory

  • Overnight

    Low: 26 °F

    Sleet and
    Patchy Fog

  • Monday

    Monday: Rain. Patchy fog. High near 40. Southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

    High: 40 °F

    Rain and
    Patchy Fog

  • Monday Night

    Monday Night: A 30 percent chance of rain, mainly before 8pm. Cloudy during the early evening, then gradual clearing, with a low around 16. West wind 10 to 15 mph, with gusts as high as 30 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 16 °F

    Chance Rain
    then Mostly
    Clear

  • Tuesday

    Tuesday: Partly sunny, with a high near 22. Breezy, with a west wind 15 to 20 mph, with gusts as high as 35 mph.

    High: 22 °F

    Partly Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 10. West wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 10 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 30.

    High: 30 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A chance of snow between 7pm and 5am. Mostly cloudy, with a low around 12. Chance of precipitation is 40%.

    Low: 12 °F

    Chance Snow

  • New Year's Day

    New Year's Day: Sunny, with a high near 22.

    High: 22 °F

    Sunny

Detailed Forecast

Overnight
Sleet. The sleet could be heavy at times. Patchy fog. Low around 26. South wind around 5 mph. Chance of precipitation is 100%. Total nighttime sleet accumulation of less than a half inch possible.
Monday
Rain. Patchy fog. High near 40. Southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Monday Night
A 30 percent chance of rain, mainly before 8pm. Cloudy during the early evening, then gradual clearing, with a low around 16. West wind 10 to 15 mph, with gusts as high as 30 mph. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
Partly sunny, with a high near 22. Breezy, with a west wind 15 to 20 mph, with gusts as high as 35 mph.
Tuesday Night
Partly cloudy, with a low around 10. West wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday
Mostly cloudy, with a high near 30.
Wednesday Night
A chance of snow between 7pm and 5am. Mostly cloudy, with a low around 12. Chance of precipitation is 40%.
New Year's Day
Sunny, with a high near 22.
Thursday Night
Mostly clear, with a low around 6.
Friday
Mostly sunny, with a high near 23.
Friday Night
Mostly clear, with a low around 9.
Saturday
Mostly sunny, with a high near 27.
Saturday Night
Mostly cloudy, with a low around 9.
Sunday
Mostly sunny, with a high near 25.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Portland International Jetport ME
 43.65°N 70.3°W (Elev. 52 ft)
Last Update:
1:06 am EST Dec 29, 2025
Forecast Valid:
4am EST Dec 29, 2025-6pm EST Jan 4, 2026
 
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