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.

A Few Clouds

52°F

11°C

Humidity 72%
Wind Speed S 10 mph
Barometer 30.33 in (1026.9 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Wind Chill49°F (9°C)
Last update 10 Oct 7:51 pm EDT
Extended Forecast for

Harmon Beach ME

Frost Advisory October 11, 12:00am until October 11, 08:00am
Click here for hazard details and duration
Frost Advisory

  • Tonight

    Tonight: Mostly clear, with a low around 42. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 42 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 66. Southwest wind around 5 mph.

    High: 66 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 48. Calm wind becoming north around 5 mph after midnight.

    Low: 48 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 62. East wind around 10 mph, with gusts as high as 20 mph.

    High: 62 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A 40 percent chance of showers after 9pm. Mostly cloudy, with a low around 43. Northeast wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 43 °F

    Chance
    Showers

  • Columbus Day

    Columbus Day: A 40 percent chance of showers. Mostly cloudy, with a high near 53.

    High: 53 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Showers likely, mainly after 2am. Mostly cloudy, with a low around 42. Chance of precipitation is 60%.

    Low: 42 °F

    Showers
    Likely

  • Tuesday

    Tuesday: A 50 percent chance of showers. Mostly cloudy, with a high near 56.

    High: 56 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers. Mostly cloudy, with a low around 42.

    Low: 42 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 42. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday
Sunny, with a high near 66. Southwest wind around 5 mph.
Saturday Night
Partly cloudy, with a low around 48. Calm wind becoming north around 5 mph after midnight.
Sunday
Partly sunny, with a high near 62. East wind around 10 mph, with gusts as high as 20 mph.
Sunday Night
A 40 percent chance of showers after 9pm. Mostly cloudy, with a low around 43. Northeast wind 10 to 15 mph, with gusts as high as 25 mph.
Columbus Day
A 40 percent chance of showers. Mostly cloudy, with a high near 53.
Monday Night
Showers likely, mainly after 2am. Mostly cloudy, with a low around 42. Chance of precipitation is 60%.
Tuesday
A 50 percent chance of showers. Mostly cloudy, with a high near 56.
Tuesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 42.
Wednesday
A 30 percent chance of showers after 2pm. Partly sunny, with a high near 61.
Wednesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 40.
Thursday
A 40 percent chance of showers. Partly sunny, with a high near 55.
Thursday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 38.
Friday
A 30 percent chance of showers. Partly sunny, with a high near 57.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Harmon Beach ME
 43.81°N 70.56°W (Elev. 361 ft)
Last Update:
6:58 pm EDT Oct 10, 2025
Forecast Valid:
8pm EDT Oct 10, 2025-6pm EDT Oct 17, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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