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

24°F

-4°C

Humidity 88%
Wind Speed Calm
Barometer 30.16 in (1021.5 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Last update 21 Nov 12:53 am EST
Extended Forecast for

Newcastle ME

  • Overnight

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

    Low: 23 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 48. Light south wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 48 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 32. Southwest wind around 5 mph.

    Low: 32 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 46. Northwest wind 5 to 10 mph.

    High: 46 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 25. Northwest wind around 5 mph becoming calm in the evening.

    Low: 25 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 42.

    High: 42 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 28.

    Low: 28 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 46.

    High: 46 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 27.

    Low: 27 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 23. Calm wind.
Friday
Mostly cloudy, with a high near 48. Light south wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Friday Night
Partly cloudy, with a low around 32. Southwest wind around 5 mph.
Saturday
Mostly sunny, with a high near 46. Northwest wind 5 to 10 mph.
Saturday Night
Mostly clear, with a low around 25. Northwest wind around 5 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 42.
Sunday Night
Mostly cloudy, with a low around 28.
Monday
Mostly sunny, with a high near 46.
Monday Night
Partly cloudy, with a low around 27.
Tuesday
Scattered showers, mainly after 5pm. Mostly cloudy, with a high near 47. Chance of precipitation is 30%.
Tuesday Night
Showers likely. Cloudy, with a low around 37. Chance of precipitation is 60%.
Wednesday
Showers likely. Mostly cloudy, with a high near 53. Chance of precipitation is 60%.
Wednesday Night
Showers likely. Mostly cloudy, with a low around 38. Chance of precipitation is 60%.
Thanksgiving Day
Scattered showers. Partly sunny, with a high near 51. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
Newcastle ME
 44.03°N 69.53°W (Elev. 0 ft)
Last Update:
12:52 am EST Nov 21, 2025
Forecast Valid:
1am EST Nov 21, 2025-6pm EST Nov 27, 2025
 
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