National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Wiscasset Airport (KIWI)

Lat: 43.96°NLon: 69.71°WElev: 53ft.

Overcast

25°F

-4°C

Humidity 88%
Wind Speed Calm
Barometer 30.05 in (1017.7 mb)
Dewpoint 22°F (-6°C)
Visibility 8.00 mi
Last update 17 Jan 11:53 pm EST
Extended Forecast for

South Newcastle ME

Winter Weather Advisory January 18, 10:00am until January 19, 01:00pm
Click here for hazard details and duration
Winter Weather Advisory

  • Overnight

    Overnight: Mostly cloudy, with a low around 23. Calm wind.

    Low: 23 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 40 percent chance of snow, mainly after 3pm. Cloudy, with a high near 37. Calm wind becoming southwest around 5 mph.

    High: 37 °F

    Cloudy then
    Chance Snow

  • Sunday Night

    Sunday Night: Snow likely, mainly before midnight. Cloudy, with a low around 20. Calm wind becoming north around 5 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.

    Low: 20 °F

    Snow Likely

  • M.L.King Day

    M.L.King Day: Partly sunny, with a high near 31. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 31 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 14. West wind 5 to 10 mph.

    Low: 14 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 22.

    High: 22 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 7.

    Low: 7 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 29.

    High: 29 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 40 percent chance of snow showers after 8pm. Mostly cloudy, with a low around 20.

    Low: 20 °F

    Chance Snow
    Showers

Detailed Forecast

Overnight
Mostly cloudy, with a low around 23. Calm wind.
Sunday
A 40 percent chance of snow, mainly after 3pm. Cloudy, with a high near 37. Calm wind becoming southwest around 5 mph.
Sunday Night
Snow likely, mainly before midnight. Cloudy, with a low around 20. Calm wind becoming north around 5 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.
M.L.King Day
Partly sunny, with a high near 31. Calm wind becoming southwest around 5 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 14. West wind 5 to 10 mph.
Tuesday
Mostly sunny, with a high near 22.
Tuesday Night
Mostly clear, with a low around 7.
Wednesday
Mostly sunny, with a high near 29.
Wednesday Night
A 40 percent chance of snow showers after 8pm. Mostly cloudy, with a low around 20.
Thursday
A 30 percent chance of snow showers before 10am. Partly sunny, with a high near 35.
Thursday Night
Partly cloudy, with a low around 10.
Friday
Mostly sunny, with a high near 24.
Friday Night
Mostly cloudy, with a low around 11.
Saturday
Partly sunny, with a high near 25.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
South Newcastle ME
 44.02°N 69.63°W (Elev. 174 ft)
Last Update:
7:44 pm EST Jan 17, 2026
Forecast Valid:
12am EST Jan 18, 2026-6pm EST Jan 24, 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