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

Wiscasset Airport (KIWI)

Lat: 43.96°NLon: 69.71°WElev: 53ft.

Fair

46°F

8°C

Humidity 89%
Wind Speed Calm
Barometer 29.90 in (1012.6 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 8 Oct 10:53 pm EDT
Extended Forecast for

Heron Island ME

  • Tonight

    Tonight: Clear, with a low around 52. West wind around 5 mph.

    Low: 52 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 61. West wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 61 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 47. West wind around 10 mph.

    Low: 47 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 58. Northwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 58 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 44. Northwest wind around 5 mph becoming calm.

    Low: 44 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 61. Breezy.

    High: 61 °F

    Mostly Sunny
    then Partly
    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: A 40 percent chance of showers after 1am. Mostly cloudy, with a low around 55.

    Low: 55 °F

    Mostly Cloudy
    then Chance
    Showers

  • Columbus Day

    Columbus Day: A 40 percent chance of showers before 11am. Mostly cloudy, with a high near 62.

    High: 62 °F

    Chance
    Showers then
    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 52.

    Low: 52 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Clear, with a low around 52. West wind around 5 mph.
Friday
Sunny, with a high near 61. West wind 10 to 15 mph, with gusts as high as 20 mph.
Friday Night
Mostly clear, with a low around 47. West wind around 10 mph.
Saturday
Sunny, with a high near 58. Northwest wind 10 to 15 mph, with gusts as high as 20 mph.
Saturday Night
Mostly clear, with a low around 44. Northwest wind around 5 mph becoming calm.
Sunday
Partly sunny, with a high near 61. Breezy.
Sunday Night
A 40 percent chance of showers after 1am. Mostly cloudy, with a low around 55.
Columbus Day
A 40 percent chance of showers before 11am. Mostly cloudy, with a high near 62.
Monday Night
Mostly cloudy, with a low around 52.
Tuesday
A 40 percent chance of showers after 10am. Mostly cloudy, with a high near 59.
Tuesday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 49.
Wednesday
Mostly sunny, with a high near 56.
Wednesday Night
Partly cloudy, with a low around 46.
Thursday
Sunny, with a high near 55.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Heron Island ME
 43.81°N 69.56°W (Elev. 0 ft)
Last Update:
2:19 pm EDT Oct 8, 2026
Forecast Valid:
11pm EDT Oct 8, 2026-6pm EDT Oct 15, 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