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.

Mostly Cloudy

38°F

3°C

Humidity 43%
Wind Speed S 13 G 16 mph
Barometer 30.52 in (1033.6 mb)
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Wind Chill30°F (-1°C)
Last update 15 Mar 12:51 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

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 41. Southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 41 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 34. Southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 34 °F

    Mostly Cloudy

  • Monday

    Monday: Rain, with thunderstorms also possible after 2pm. High near 50. South wind 10 to 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: 50 °F

    Rain

  • Monday Night

    Monday Night: Rain. Low around 41. Breezy, with a south wind 20 to 25 mph, with gusts as high as 45 mph. Chance of precipitation is 100%.

    Low: 41 °F

    Rain and
    Breezy

  • Tuesday

    Tuesday: Showers likely, mainly before 7am. Mostly sunny, with a high near 45. West wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.

    High: 45 °F

    Showers
    Likely then
    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 19.

    Low: 19 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 35.

    High: 35 °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

Detailed Forecast

This Afternoon
Partly sunny, with a high near 41. Southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Tonight
Mostly cloudy, with a low around 34. Southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Monday
Rain, with thunderstorms also possible after 2pm. High near 50. South wind 10 to 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. Low around 41. Breezy, with a south wind 20 to 25 mph, with gusts as high as 45 mph. Chance of precipitation is 100%.
Tuesday
Showers likely, mainly before 7am. Mostly sunny, with a high near 45. West wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.
Tuesday Night
Mostly clear, with a low around 19.
Wednesday
Sunny, with a high near 35.
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
Mostly sunny, with a high near 43.
Friday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 30.
Saturday
A chance of rain and snow. Mostly cloudy, with a high near 42. Chance of precipitation is 50%.
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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:
3:09 am EDT Mar 15, 2026
Forecast Valid:
1pm EDT Mar 15, 2026-6pm EDT Mar 21, 2026
 
Forecast Discussion
 
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Additional Resources

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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