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

36°F

2°C

Humidity 79%
Wind Speed W 3 mph
Barometer 30.23 in (1023.7 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 4 Mar 8:53 am EST
Extended Forecast for

Newcastle ME

  • Today

    Today: Sunny, with a high near 47. Calm wind becoming west around 5 mph.

    High: 47 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 21. Calm wind.

    Low: 21 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 35. Calm wind becoming northeast around 5 mph in the morning.

    High: 35 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A 50 percent chance of snow after midnight. Cloudy, with a low around 22. Northeast wind around 5 mph.

    Low: 22 °F

    Cloudy then
    Chance Snow

  • Friday

    Friday: Snow likely, mainly before 11am. Cloudy, with a high near 36. East wind around 5 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    High: 36 °F

    Snow Likely

  • Friday Night

    Friday Night: A 30 percent chance of snow after 1am. Cloudy, with a low around 26.

    Low: 26 °F

    Cloudy then
    Chance Snow

  • Saturday

    Saturday: A chance of freezing rain before 8am, then a chance of rain between 8am and 10am. Cloudy, with a high near 49. Chance of precipitation is 30%.

    High: 49 °F

    Chance
    Rain/Freezing
    Rain then
    Mostly Cloudy

  • Saturday Night

    Saturday Night: A chance of rain between 8pm and 2am. Mostly cloudy, with a low around 34. Chance of precipitation is 50%.

    Low: 34 °F

    Chance Rain

  • Sunday

    Sunday: Mostly sunny, with a high near 50.

    High: 50 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 47. Calm wind becoming west around 5 mph.
Tonight
Partly cloudy, with a low around 21. Calm wind.
Thursday
Partly sunny, with a high near 35. Calm wind becoming northeast around 5 mph in the morning.
Thursday Night
A 50 percent chance of snow after midnight. Cloudy, with a low around 22. Northeast wind around 5 mph.
Friday
Snow likely, mainly before 11am. Cloudy, with a high near 36. East wind around 5 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Friday Night
A 30 percent chance of snow after 1am. Cloudy, with a low around 26.
Saturday
A chance of freezing rain before 8am, then a chance of rain between 8am and 10am. Cloudy, with a high near 49. Chance of precipitation is 30%.
Saturday Night
A chance of rain between 8pm and 2am. Mostly cloudy, with a low around 34. Chance of precipitation is 50%.
Sunday
Mostly sunny, with a high near 50.
Sunday Night
Partly cloudy, with a low around 30.
Monday
Mostly sunny, with a high near 53.
Monday Night
Partly cloudy, with a low around 32.
Tuesday
Sunny, with a high near 55.
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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:
5:30 am EST Mar 4, 2026
Forecast Valid:
9am EST Mar 4, 2026-6pm EDT Mar 10, 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