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

-10°C

14°F

Humidity 77%
Wind Speed Calm
Barometer 1014.9 mb (29.97 in)
Dewpoint -13°C (8°F)
Visibility 16 km
Last update 15 Feb 1:53 am EST
Extended Forecast for

South Newcastle ME

  • Overnight

    Overnight: Isolated snow showers before 3am. Partly cloudy, with a low around -11. Northwest wind around 10 km/h. Chance of precipitation is 20%.

    Low: -11 °C

    Isolated Snow
    Showers

  • Sunday

    Sunday: Sunny, with a high near 0. Northwest wind 5 to 10 km/h.

    High: 0 °C

    Sunny

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around -11. Calm wind.

    Low: -11 °C

    Increasing
    Clouds

  • Washington's Birthday

    Washington's Birthday: Partly sunny, with a high near 2. Calm wind.

    High: 2 °C

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around -6. Calm wind.

    Low: -6 °C

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 3.

    High: 3 °C

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around -5.

    Low: -5 °C

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 4.

    High: 4 °C

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A chance of rain and snow before 9pm, then snow likely. Mostly cloudy, with a low around -7. Chance of precipitation is 60%.

    Low: -7 °C

    Rain/Snow
    Likely then
    Snow Likely

Detailed Forecast

Overnight
Isolated snow showers before 3am. Partly cloudy, with a low around -11. Northwest wind around 10 km/h. Chance of precipitation is 20%.
Sunday
Sunny, with a high near 0. Northwest wind 5 to 10 km/h.
Sunday Night
Increasing clouds, with a low around -11. Calm wind.
Washington's Birthday
Partly sunny, with a high near 2. Calm wind.
Monday Night
Mostly cloudy, with a low around -6. Calm wind.
Tuesday
Mostly cloudy, with a high near 3.
Tuesday Night
Partly cloudy, with a low around -5.
Wednesday
Partly sunny, with a high near 4.
Wednesday Night
A chance of rain and snow before 9pm, then snow likely. Mostly cloudy, with a low around -7. Chance of precipitation is 60%.
Thursday
A 40 percent chance of snow before 10am. Mostly cloudy, with a high near 3.
Thursday Night
Mostly cloudy, with a low around -7.
Friday
A chance of rain and snow. Partly sunny, with a high near 3. Chance of precipitation is 40%.
Friday Night
A chance of rain and snow. Mostly cloudy, with a low around -6. Chance of precipitation is 40%.
Saturday
A 40 percent chance of snow. Mostly cloudy, with a high near 3.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
South Newcastle ME
 44.02°N 69.63°W (Elev. 174 m)
Last Update:
1:26 am EST Feb 15, 2026
Forecast Valid:
2am EST Feb 15, 2026-6pm EST Feb 21, 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