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

35°F

2°C

Humidity 82%
Wind Speed Calm
Barometer 30.08 in (1018.5 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 26 Apr 1:53 am EDT
Extended Forecast for

Newcastle ME

  • Overnight

    Overnight: Mostly cloudy, with a low around 32. Calm wind.

    Low: 32 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 61. North wind around 5 mph becoming southeast in the afternoon.

    High: 61 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 36. Calm wind.

    Low: 36 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 59. Calm wind becoming east around 5 mph in the afternoon.

    High: 59 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 34. Calm wind.

    Low: 34 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 38.

    Low: 38 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 40 percent chance of showers after 10am. Mostly cloudy, with a high near 51.

    High: 51 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Showers likely, mainly after 9pm. Cloudy, with a low around 42. Chance of precipitation is 70%.

    Low: 42 °F

    Showers
    Likely

Detailed Forecast

Overnight
Mostly cloudy, with a low around 32. Calm wind.
Sunday
Mostly sunny, with a high near 61. North wind around 5 mph becoming southeast in the afternoon.
Sunday Night
Mostly cloudy, with a low around 36. Calm wind.
Monday
Mostly sunny, with a high near 59. Calm wind becoming east around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 34. Calm wind.
Tuesday
Sunny, with a high near 56.
Tuesday Night
Partly cloudy, with a low around 38.
Wednesday
A 40 percent chance of showers after 10am. Mostly cloudy, with a high near 51.
Wednesday Night
Showers likely, mainly after 9pm. Cloudy, with a low around 42. Chance of precipitation is 70%.
Thursday
Showers. High near 52. Chance of precipitation is 80%.
Thursday Night
Showers likely. Mostly cloudy, with a low around 42. Chance of precipitation is 60%.
Friday
A 40 percent chance of showers. Mostly cloudy, with a high near 54.
Friday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 40.
Saturday
A 30 percent chance of showers. Mostly cloudy, with a high near 54.
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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:
6:56 pm EDT Apr 25, 2026
Forecast Valid:
2am EDT Apr 26, 2026-6pm EDT May 2, 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