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.

Light Rain

49°F

9°C

Humidity 86%
Wind Speed Calm
Barometer 29.98 in (1015.1 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 13 May 8:53 pm EDT
Extended Forecast for

South Bristol ME

  • Tonight

    Tonight: A 30 percent chance of showers, mainly before 11pm. Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 45. South wind 5 to 10 mph.

    Low: 45 °F

    Chance
    Showers and
    Patchy Fog

  • Thursday

    Thursday: Rain, mainly after noon. Patchy fog. High near 60. Southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 60 °F

    Patchy Fog
    then Rain and
    Patchy Fog

  • Thursday Night

    Thursday Night: Rain. Patchy fog. Low around 46. East wind 5 to 10 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 46 °F

    Rain and
    Patchy Fog

  • Friday

    Friday: Rain before 2pm, then showers likely, mainly between 2pm and 4pm. High near 58. Northeast wind around 5 mph. Chance of precipitation is 80%.

    High: 58 °F

    Rain

  • Friday Night

    Friday Night: A 30 percent chance of showers before 7pm. Mostly cloudy, with a low around 45. Calm wind.

    Low: 45 °F

    Chance
    Showers then
    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 69.

    High: 69 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 70.

    High: 70 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 49.

    Low: 49 °F

    Mostly Clear

Detailed Forecast

Tonight
A 30 percent chance of showers, mainly before 11pm. Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 45. South wind 5 to 10 mph.
Thursday
Rain, mainly after noon. Patchy fog. High near 60. Southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
Rain. Patchy fog. Low around 46. East wind 5 to 10 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Friday
Rain before 2pm, then showers likely, mainly between 2pm and 4pm. High near 58. Northeast wind around 5 mph. Chance of precipitation is 80%.
Friday Night
A 30 percent chance of showers before 7pm. Mostly cloudy, with a low around 45. Calm wind.
Saturday
Sunny, with a high near 69.
Saturday Night
Mostly clear, with a low around 52.
Sunday
Sunny, with a high near 70.
Sunday Night
Mostly clear, with a low around 49.
Monday
Mostly sunny, with a high near 64.
Monday Night
Partly cloudy, with a low around 47.
Tuesday
Mostly sunny, with a high near 68.
Tuesday Night
Partly cloudy, with a low around 53.
Wednesday
A 30 percent chance of showers. Partly sunny, with a high near 69.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
South Bristol ME
 43.88°N 69.57°W (Elev. 3 ft)
Last Update:
8:01 pm EDT May 13, 2026
Forecast Valid:
9pm EDT May 13, 2026-6pm EDT May 20, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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