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

Portland, Portland International Jetport (KPWM)

Lat: 43.64°NLon: 70.3°WElev: 72ft.

A Few Clouds

58°F

14°C

Humidity 46%
Wind Speed S 13 G 20 mph
Barometer 29.93 in (1013.5 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 7 Oct 1:51 pm EDT
Extended Forecast for

Harmon Beach ME

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 62. South wind around 10 mph, with gusts as high as 20 mph.

    High: 62 °F

    Mostly Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 48. South wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 48 °F

    Increasing
    Clouds

  • Thursday

    Thursday: A 50 percent chance of showers before 11am. Mostly cloudy through mid morning, then gradual clearing, with a high near 69. 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.

    High: 69 °F

    Chance
    Showers then
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 45. West wind 5 to 10 mph.

    Low: 45 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 61. West wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 61 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

  • Sunday

    Sunday: A 30 percent chance of showers after 3pm. Mostly sunny, with a high near 71.

    High: 71 °F

    Mostly Sunny
    then Chance
    Showers

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 62. South wind around 10 mph, with gusts as high as 20 mph.
Tonight
Increasing clouds, with a low around 48. South wind 10 to 15 mph, with gusts as high as 25 mph.
Thursday
A 50 percent chance of showers before 11am. Mostly cloudy through mid morning, then gradual clearing, with a high near 69. 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 Night
Mostly clear, with a low around 45. West wind 5 to 10 mph.
Friday
Sunny, with a high near 61. West wind 10 to 15 mph, with gusts as high as 25 mph.
Friday Night
Mostly clear, with a low around 37.
Saturday
Sunny, with a high near 64.
Saturday Night
Mostly clear, with a low around 42.
Sunday
A 30 percent chance of showers after 3pm. Mostly sunny, with a high near 71.
Sunday Night
Showers likely, mainly between 8pm and 4am. Mostly cloudy, with a low around 55. Chance of precipitation is 70%.
Columbus Day
A 30 percent chance of showers. Mostly cloudy, with a high near 67.
Monday Night
Mostly cloudy, with a low around 47.
Tuesday
A 40 percent chance of showers. Partly sunny, with a high near 60.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Harmon Beach ME
 43.81°N 70.56°W (Elev. 361 ft)
Last Update:
2:26 pm EDT Oct 7, 2026
Forecast Valid:
2pm EDT Oct 7, 2026-6pm EDT Oct 13, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation