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

37°F

3°C

Humidity 86%
Wind Speed Calm
Barometer 29.67 in (1004.7 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Last update 13 Nov 2:53 am EST
Extended Forecast for

Newcastle ME

  • Overnight

    Overnight: A 30 percent chance of showers, mainly before 4am. Mostly cloudy, with a low around 31. Calm wind.

    Low: 31 °F

    Chance
    Showers

  • Thursday

    Thursday: A 40 percent chance of showers, mainly after noon. Mostly cloudy, with a high near 45. Calm wind becoming northwest around 5 mph in the morning. New precipitation amounts of less than a tenth of an inch possible.

    High: 45 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A 30 percent chance of showers, mainly before 9pm. Mostly cloudy, with a low around 29. North wind around 5 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 29 °F

    Chance
    Showers then
    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 45. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 45 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 24. Northwest wind around 5 mph.

    Low: 24 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 44.

    High: 44 °F

    Sunny

  • Saturday Night

    Saturday Night: A chance of snow between 10pm and 2am, then rain likely. Mostly cloudy, with a low around 28. Chance of precipitation is 70%.

    Low: 28 °F

    Chance Snow
    then
    Rain/Snow
    Likely

  • Sunday

    Sunday: Rain, mainly before 4pm. High near 49. Chance of precipitation is 80%.

    High: 49 °F

    Rain

  • Sunday Night

    Sunday Night: A chance of rain showers before midnight, then a chance of snow showers. Mostly cloudy, with a low around 28. Chance of precipitation is 40%.

    Low: 28 °F

    Chance Rain
    then Chance
    Snow Showers

Detailed Forecast

Overnight
A 30 percent chance of showers, mainly before 4am. Mostly cloudy, with a low around 31. Calm wind.
Thursday
A 40 percent chance of showers, mainly after noon. Mostly cloudy, with a high near 45. Calm wind becoming northwest around 5 mph in the morning. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
A 30 percent chance of showers, mainly before 9pm. Mostly cloudy, with a low around 29. North wind around 5 mph. New precipitation amounts of less than a tenth of an inch possible.
Friday
Mostly sunny, with a high near 45. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Friday Night
Mostly clear, with a low around 24. Northwest wind around 5 mph.
Saturday
Sunny, with a high near 44.
Saturday Night
A chance of snow between 10pm and 2am, then rain likely. Mostly cloudy, with a low around 28. Chance of precipitation is 70%.
Sunday
Rain, mainly before 4pm. High near 49. Chance of precipitation is 80%.
Sunday Night
A chance of rain showers before midnight, then a chance of snow showers. Mostly cloudy, with a low around 28. Chance of precipitation is 40%.
Monday
Mostly sunny, with a high near 42.
Monday Night
Partly cloudy, with a low around 28.
Tuesday
Mostly sunny, with a high near 46.
Tuesday Night
Partly cloudy, with a low around 27.
Wednesday
Mostly sunny, with a high near 46.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Newcastle ME
 44.03°N 69.53°W (Elev. 0 ft)
Last Update:
12:10 am EST Nov 13, 2025
Forecast Valid:
3am EST Nov 13, 2025-6pm EST Nov 19, 2025
 
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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