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

54°F

12°C

Humidity 87%
Wind Speed Calm
Barometer 30.09 in (1019.1 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 31 Aug 10:53 pm EDT
Extended Forecast for

Boothbay Harbor ME

  • Tonight

    Tonight: Mostly cloudy, with a low around 56. Calm wind.

    Low: 56 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 40 percent chance of rain, mainly before 3pm. Mostly cloudy, with a high near 71. Calm wind becoming east around 5 mph in the morning. New precipitation amounts of less than a tenth of an inch possible.

    High: 71 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: A 20 percent chance of rain between 11pm and midnight. Mostly cloudy, with a low around 55. Calm wind.

    Low: 55 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 70. East wind 5 to 10 mph.

    High: 70 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Showers, mainly after 11pm. The rain could be heavy at times. Low around 58. Southeast wind around 5 mph. Chance of precipitation is 80%.

    Low: 58 °F

    Chance
    Showers then
    Heavy Rain

  • Thursday

    Thursday: Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 72. Chance of precipitation is 90%.

    High: 72 °F

    Heavy Rain

  • Thursday Night

    Thursday Night: Showers likely, mainly before 8pm. Mostly cloudy, with a low around 60. Chance of precipitation is 60%.

    Low: 60 °F

    Showers
    Likely then
    Chance
    Showers

  • Friday

    Friday: Mostly sunny, with a high near 75.

    High: 75 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 57.

    Low: 57 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 56. Calm wind.
Tuesday
A 40 percent chance of rain, mainly before 3pm. Mostly cloudy, with a high near 71. Calm wind becoming east around 5 mph in the morning. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
A 20 percent chance of rain between 11pm and midnight. Mostly cloudy, with a low around 55. Calm wind.
Wednesday
Partly sunny, with a high near 70. East wind 5 to 10 mph.
Wednesday Night
Showers, mainly after 11pm. The rain could be heavy at times. Low around 58. Southeast wind around 5 mph. Chance of precipitation is 80%.
Thursday
Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 72. Chance of precipitation is 90%.
Thursday Night
Showers likely, mainly before 8pm. Mostly cloudy, with a low around 60. Chance of precipitation is 60%.
Friday
Mostly sunny, with a high near 75.
Friday Night
Partly cloudy, with a low around 57.
Saturday
Mostly sunny, with a high near 71.
Saturday Night
Partly cloudy, with a low around 54.
Sunday
Mostly sunny, with a high near 70.
Sunday Night
Partly cloudy, with a low around 55.
Labor Day
Sunny, with a high near 72.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Boothbay Harbor ME
 43.86°N 69.64°W (Elev. 98 ft)
Last Update:
7:22 pm EDT Aug 31, 2026
Forecast Valid:
11pm EDT Aug 31, 2026-6pm EDT Sep 7, 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