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.

Fog

64°F

18°C

Humidity 90%
Wind Speed E 3 mph
Barometer 30.14 in (1020.6 mb)
Dewpoint 61°F (16°C)
Visibility 0.50 mi
Last update 1 Sep 10:53 pm EDT
Extended Forecast for

Boothbay Harbor ME

  • Tonight

    Tonight: Areas of dense fog. Otherwise, mostly cloudy, with a low around 56. Calm wind.

    Low: 56 °F

    Areas Dense
    Fog

  • Wednesday

    Wednesday: Patchy fog before 7am. Otherwise, partly sunny, with a high near 71. East wind 5 to 10 mph.

    High: 71 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers, mainly after 5am. Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 58. Calm wind becoming southeast around 5 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 58 °F

    Mostly Cloudy
    then Chance
    Showers and
    Patchy Fog

  • Thursday

    Thursday: Showers. Patchy fog before 10am. High near 71. Southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.

    High: 71 °F

    Showers and
    Patchy Fog

  • Thursday Night

    Thursday Night: Showers likely, mainly before 7pm. Mostly cloudy, with a low around 62. Southeast wind around 5 mph becoming calm. Chance of precipitation is 60%.

    Low: 62 °F

    Showers
    Likely then
    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy

Detailed Forecast

Tonight
Areas of dense fog. Otherwise, mostly cloudy, with a low around 56. Calm wind.
Wednesday
Patchy fog before 7am. Otherwise, partly sunny, with a high near 71. East wind 5 to 10 mph.
Wednesday Night
A 30 percent chance of showers, mainly after 5am. Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 58. Calm wind becoming southeast around 5 mph. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Showers. Patchy fog before 10am. High near 71. Southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.
Thursday Night
Showers likely, mainly before 7pm. Mostly cloudy, with a low around 62. Southeast wind around 5 mph becoming calm. Chance of precipitation is 60%.
Friday
Mostly sunny, with a high near 78.
Friday Night
Partly cloudy, with a low around 58.
Saturday
Mostly sunny, with a high near 73.
Saturday Night
Partly cloudy, with a low around 55.
Sunday
Mostly sunny, with a high near 73.
Sunday Night
Mostly clear, with a low around 55.
Labor Day
Sunny, with a high near 74.
Monday Night
Partly cloudy, with a low around 56.
Tuesday
Mostly sunny, with a high near 74.
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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:
9:22 pm EDT Sep 1, 2026
Forecast Valid:
11pm EDT Sep 1, 2026-6pm EDT Sep 8, 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