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Hazardous Weather Conditions

Current conditions at

Portland, Portland International Jetport (KPWM)

Lat: 43.64°NLon: 70.3°WElev: 72ft.

Fair

48°F

9°C

Humidity 42%
Wind Speed N 5 mph
Barometer 30.10 in (1019.3 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Wind Chill46°F (8°C)
Last update 12 May 9:51 pm EDT
Extended Forecast for

Portland ME

Frost Advisory May 13, 02:00am until May 13, 09:00am
Click here for hazard details and duration
Frost Advisory

  • Tonight

    Tonight: Partly cloudy, with a low around 39. Calm wind.

    Low: 39 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 50 percent chance of showers, mainly between noon and 5pm. Mostly cloudy, with a high near 52. Light east wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 20 mph. New precipitation amounts of less than a tenth of an inch possible.

    High: 52 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers, mainly before 9pm. Cloudy, with a low around 46. South wind 10 to 15 mph, with gusts as high as 25 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 46 °F

    Chance
    Showers then
    Cloudy

  • Thursday

    Thursday: Rain, mainly after 10am. High near 53. Southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.

    High: 53 °F

    Rain

  • Thursday Night

    Thursday Night: Rain. Low around 45. Northeast wind around 10 mph. Chance of precipitation is 90%.

    Low: 45 °F

    Rain

  • Friday

    Friday: Showers, mainly before 2pm. High near 53. Chance of precipitation is 80%.

    High: 53 °F

    Showers

  • Friday Night

    Friday Night: A 30 percent chance of showers before 10pm. Mostly cloudy, with a low around 46.

    Low: 46 °F

    Chance
    Showers then
    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 68.

    High: 68 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 53.

    Low: 53 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 39. Calm wind.
Wednesday
A 50 percent chance of showers, mainly between noon and 5pm. Mostly cloudy, with a high near 52. Light east wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 20 mph. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
A 30 percent chance of showers, mainly before 9pm. Cloudy, with a low around 46. South wind 10 to 15 mph, with gusts as high as 25 mph. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Rain, mainly after 10am. High near 53. Southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Thursday Night
Rain. Low around 45. Northeast wind around 10 mph. Chance of precipitation is 90%.
Friday
Showers, mainly before 2pm. High near 53. Chance of precipitation is 80%.
Friday Night
A 30 percent chance of showers before 10pm. Mostly cloudy, with a low around 46.
Saturday
Mostly sunny, with a high near 68.
Saturday Night
Mostly clear, with a low around 53.
Sunday
Sunny, with a high near 71.
Sunday Night
Mostly clear, with a low around 49.
Monday
Mostly sunny, with a high near 65.
Monday Night
Partly cloudy, with a low around 50.
Tuesday
A 30 percent chance of showers. Partly sunny, with a high near 72.
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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:
7:55 pm EDT May 12, 2026
Forecast Valid:
10pm EDT May 12, 2026-6pm EDT May 19, 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