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

66°F

19°C

Humidity 81%
Wind Speed Calm
Barometer 30.08 in (1018.5 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 4 Aug 9:53 pm EDT
Extended Forecast for

Newcastle ME

  • Tonight

    Tonight: Clear, with a low around 56. Calm wind.

    Low: 56 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 86. Light southwest wind becoming south 5 to 10 mph in the afternoon.

    High: 86 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 62. Calm wind.

    Low: 62 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 86. Light and variable wind becoming south 5 to 10 mph in the afternoon.

    High: 86 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 67. Calm wind.

    Low: 67 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 68.

    Low: 68 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of showers between 1pm and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 88. Chance of precipitation is 40%.

    High: 88 °F

    Partly Sunny
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 10pm. Mostly cloudy, with a low around 67. Chance of precipitation is 30%.

    Low: 67 °F

    Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

Tonight
Clear, with a low around 56. Calm wind.
Wednesday
Sunny, with a high near 86. Light southwest wind becoming south 5 to 10 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 62. Calm wind.
Thursday
Sunny, with a high near 86. Light and variable wind becoming south 5 to 10 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 67. Calm wind.
Friday
Mostly sunny, with a high near 87.
Friday Night
Mostly cloudy, with a low around 68.
Saturday
A chance of showers between 1pm and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 88. Chance of precipitation is 40%.
Saturday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 10pm. Mostly cloudy, with a low around 67. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 89.
Sunday Night
Mostly clear, with a low around 67.
Monday
Mostly sunny, with a high near 88.
Monday Night
Partly cloudy, with a low around 65.
Tuesday
A 40 percent chance of showers. Partly sunny, with a high near 82.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Newcastle ME
 44.03°N 69.53°W (Elev. 0 ft)
Last Update:
7:11 pm EDT Aug 4, 2026
Forecast Valid:
10pm EDT Aug 4, 2026-6pm EDT Aug 11, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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