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.

Overcast

35°F

2°C

Humidity 61%
Wind Speed SE 10 mph
Barometer 30.49 in (1032.4 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 15 Mar 4:51 pm EDT
Extended Forecast for

Portland ME

Flood Watch March 16, 02:00pm until March 17, 02:00pm
Wind Advisory March 16, 08:00pm until March 17, 08:00am
Click here for hazard details and duration
Flood Watch
Wind Advisory

  • Tonight

    Tonight: Mostly cloudy, with a low around 34. Southeast wind 5 to 10 mph.

    Low: 34 °F

    Mostly Cloudy

  • Monday

    Monday: Rain, with thunderstorms also possible after 2pm. High near 51. South wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    High: 51 °F

    Rain

  • Monday Night

    Monday Night: Rain and possibly a thunderstorm. Low around 43. Breezy, with a south wind 20 to 25 mph, with gusts as high as 45 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 43 °F

    Rain and
    Breezy

  • Tuesday

    Tuesday: A 50 percent chance of rain before 11am. Mostly cloudy, then gradually becoming sunny, with a high near 46. West wind around 15 mph, with gusts as high as 35 mph.

    High: 46 °F

    Chance Rain
    then Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 19. West wind 10 to 15 mph, with gusts as high as 30 mph.

    Low: 19 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 34.

    High: 34 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 26.

    Low: 26 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 39.

    High: 39 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 30.

    Low: 30 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 34. Southeast wind 5 to 10 mph.
Monday
Rain, with thunderstorms also possible after 2pm. High near 51. South wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Monday Night
Rain and possibly a thunderstorm. Low around 43. Breezy, with a south wind 20 to 25 mph, with gusts as high as 45 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday
A 50 percent chance of rain before 11am. Mostly cloudy, then gradually becoming sunny, with a high near 46. West wind around 15 mph, with gusts as high as 35 mph.
Tuesday Night
Mostly clear, with a low around 19. West wind 10 to 15 mph, with gusts as high as 30 mph.
Wednesday
Sunny, with a high near 34.
Wednesday Night
Mostly cloudy, with a low around 26.
Thursday
Partly sunny, with a high near 39.
Thursday Night
Mostly cloudy, with a low around 30.
Friday
Partly sunny, with a high near 44.
Friday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 31.
Saturday
A 50 percent chance of rain. Partly sunny, with a high near 43.
Saturday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 28.
Sunday
Mostly sunny, with a high near 37.
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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:
2:25 pm EDT Mar 15, 2026
Forecast Valid:
6pm EDT Mar 15, 2026-6pm EDT Mar 22, 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