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.

Overcast

64°F

18°C

Humidity 63%
Wind Speed S 13 G 23 mph
Barometer 29.89 in (1012.3 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 14 May 11:53 am EDT
Extended Forecast for

South Newcastle ME

  • This Afternoon

    This Afternoon: Rain likely, mainly after 4pm. Cloudy, with a high near 61. East wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 61 °F

    Rain Likely

  • Tonight

    Tonight: Rain. Patchy fog after midnight. Low around 47. 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: 47 °F

    Rain and
    Patchy Fog

  • Friday

    Friday: Rain likely, mainly before 1pm. Patchy fog before 11am. Otherwise, cloudy, with a high near 57. North wind around 5 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 57 °F

    Rain Likely
    and Patchy
    Fog

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 46. Calm wind.

    Low: 46 °F

    Mostly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 71. Light west wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 71 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 75.

    High: 75 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 71.

    High: 71 °F

    Sunny

Detailed Forecast

This Afternoon
Rain likely, mainly after 4pm. Cloudy, with a high near 61. East wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
Rain. Patchy fog after midnight. Low around 47. 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 likely, mainly before 1pm. Patchy fog before 11am. Otherwise, cloudy, with a high near 57. North wind around 5 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
Mostly cloudy, with a low around 46. Calm wind.
Saturday
Sunny, with a high near 71. Light west wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Saturday Night
Partly cloudy, with a low around 52.
Sunday
Mostly sunny, with a high near 75.
Sunday Night
Mostly clear, with a low around 50.
Monday
Sunny, with a high near 71.
Monday Night
Partly cloudy, with a low around 47.
Tuesday
Mostly sunny, with a high near 73.
Tuesday Night
Mostly cloudy, with a low around 54.
Wednesday
A 40 percent chance of showers. Partly sunny, with a high near 74.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
South Newcastle ME
 43.99°N 69.6°W (Elev. 62 ft)
Last Update:
6:20 am EDT May 14, 2026
Forecast Valid:
12pm EDT May 14, 2026-6pm EDT May 20, 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