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

81°F

27°C

Humidity 37%
Wind Speed NA
Barometer 29.81 in (1009.3 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 24 Jun 5:53 pm EDT
Extended Forecast for

South Newcastle ME

  • Tonight

    Tonight: Partly cloudy, with a low around 57. Northwest wind around 5 mph becoming calm.

    Low: 57 °F

    Partly Cloudy

  • Thursday

    Thursday: Increasing clouds, with a high near 82. Light and variable wind becoming south 5 to 10 mph in the afternoon.

    High: 82 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: Showers likely, mainly between 2am and 5am. Patchy fog after 2am. Otherwise, increasing clouds, with a low around 57. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 57 °F

    Mostly Cloudy
    then Showers
    Likely and
    Patchy Fog

  • Friday

    Friday: Showers, mainly before 3pm. Patchy fog before 9am. High near 73. South wind 5 to 10 mph. Chance of precipitation is 90%.

    High: 73 °F

    Showers and
    Patchy Fog

  • Friday Night

    Friday Night: A 30 percent chance of showers before 7pm. Partly cloudy, with a low around 57. Calm wind.

    Low: 57 °F

    Chance
    Showers then
    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Saturday Night

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

    Low: 57 °F

    Partly Cloudy

  • Sunday

    Sunday: A 30 percent chance of showers after 11am. Partly sunny, with a high near 81.

    High: 81 °F

    Chance
    Showers

  • Sunday Night

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

    Low: 57 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 57. Northwest wind around 5 mph becoming calm.
Thursday
Increasing clouds, with a high near 82. Light and variable wind becoming south 5 to 10 mph in the afternoon.
Thursday Night
Showers likely, mainly between 2am and 5am. Patchy fog after 2am. Otherwise, increasing clouds, with a low around 57. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Showers, mainly before 3pm. Patchy fog before 9am. High near 73. South wind 5 to 10 mph. Chance of precipitation is 90%.
Friday Night
A 30 percent chance of showers before 7pm. Partly cloudy, with a low around 57. Calm wind.
Saturday
Mostly sunny, with a high near 80.
Saturday Night
Partly cloudy, with a low around 57.
Sunday
A 30 percent chance of showers after 11am. Partly sunny, with a high near 81.
Sunday Night
Partly cloudy, with a low around 57.
Monday
Mostly sunny, with a high near 83.
Monday Night
Partly cloudy, with a low around 59.
Tuesday
A 30 percent chance of showers. Partly sunny, with a high near 83.
Tuesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 60.
Wednesday
Mostly sunny, with a high near 82.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
South Newcastle ME
 44.01°N 69.6°W (Elev. 16 ft)
Last Update:
6:25 pm EDT Jun 24, 2026
Forecast Valid:
6pm EDT Jun 24, 2026-6pm EDT Jul 1, 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