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

35°F

2°C

Humidity 82%
Wind Speed Calm
Barometer 29.89 in (1012.3 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 11 Nov 8:53 pm EST
Extended Forecast for

South Newcastle ME

  • Tonight

    Tonight: Mostly cloudy, with a low around 33. Calm wind.

    Low: 33 °F

    Mostly Cloudy

  • Thursday

    Thursday: A slight chance of rain before 3pm, then a slight chance of rain after 5pm. Mostly cloudy, with a high near 46. Calm wind becoming northeast around 5 mph in the afternoon. Chance of precipitation is 20%.

    High: 46 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Thursday Night

    Thursday Night: Rain likely before 4am, then rain and snow likely. Cloudy, with a low around 32. North wind 5 to 10 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

    Low: 32 °F

    Rain Likely
    then
    Rain/Snow
    Likely

  • Friday

    Friday: Rain and snow likely before 9am, then a chance of snow between 9am and 10am, then a chance of rain after 10am. Cloudy, with a high near 42. North wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 42 °F

    Rain/Snow
    Likely then
    Chance Rain

  • Friday Night

    Friday Night: A 30 percent chance of rain. Cloudy, with a low around 31. North wind 5 to 10 mph.

    Low: 31 °F

    Chance Rain

  • Saturday

    Saturday: Mostly cloudy, with a high near 45.

    High: 45 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 27.

    Low: 27 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 46.

    High: 46 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 25.

    Low: 25 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 33. Calm wind.
Thursday
A slight chance of rain before 3pm, then a slight chance of rain after 5pm. Mostly cloudy, with a high near 46. Calm wind becoming northeast around 5 mph in the afternoon. Chance of precipitation is 20%.
Thursday Night
Rain likely before 4am, then rain and snow likely. Cloudy, with a low around 32. North wind 5 to 10 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Friday
Rain and snow likely before 9am, then a chance of snow between 9am and 10am, then a chance of rain after 10am. Cloudy, with a high near 42. North wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Friday Night
A 30 percent chance of rain. Cloudy, with a low around 31. North wind 5 to 10 mph.
Saturday
Mostly cloudy, with a high near 45.
Saturday Night
Mostly cloudy, with a low around 27.
Sunday
Mostly sunny, with a high near 46.
Sunday Night
Partly cloudy, with a low around 25.
Monday
Sunny, with a high near 46.
Monday Night
Mostly clear, with a low around 23.
Tuesday
Sunny, with a high near 47.
Tuesday Night
Mostly clear, with a low around 23.
Wednesday
Sunny, with a high near 52.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
South Newcastle ME
 43.99°N 69.6°W (Elev. 62 ft)
Last Update:
5:27 pm EST Nov 11, 2026
Forecast Valid:
9pm EST Nov 11, 2026-6pm EST Nov 18, 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