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

88°F

31°C

Humidity 46%
Wind Speed Vrbl 6 mph
Barometer 29.76 in (1007.7 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Heat Index90°F (32°C)
Last update 20 May 11:53 am EDT
Extended Forecast for

Boothbay Harbor ME

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 84. West wind around 15 mph, with gusts as high as 30 mph.

    High: 84 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Partly cloudy, with a low around 51. Northwest wind 5 to 10 mph.

    Low: 51 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, then gradually becoming sunny, with a high near 66. Northwest wind around 5 mph.

    High: 66 °F

    Becoming
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 41. Northwest wind around 5 mph becoming calm in the evening.

    Low: 41 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 65. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 65 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 45.

    Low: 45 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 63.

    High: 63 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 45.

    Low: 45 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 59.

    High: 59 °F

    Partly Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 84. West wind around 15 mph, with gusts as high as 30 mph.
Tonight
Partly cloudy, with a low around 51. Northwest wind 5 to 10 mph.
Thursday
Partly sunny, then gradually becoming sunny, with a high near 66. Northwest wind around 5 mph.
Thursday Night
Mostly clear, with a low around 41. Northwest wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 65. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Friday Night
Partly cloudy, with a low around 45.
Saturday
Partly sunny, with a high near 63.
Saturday Night
Mostly cloudy, with a low around 45.
Sunday
Partly sunny, with a high near 59.
Sunday Night
A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 45.
Memorial Day
Showers likely. Mostly cloudy, with a high near 61. Chance of precipitation is 60%.
Monday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 48.
Tuesday
A 30 percent chance of showers. Partly sunny, with a high near 67.
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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:
6:46 am EDT May 20, 2026
Forecast Valid:
12pm EDT May 20, 2026-6pm EDT May 26, 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