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

53°F

12°C

Humidity 37%
Wind Speed NA
Barometer 30.10 in (1019.3 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Last update 12 May 8:53 am EDT
Extended Forecast for

Newcastle ME

  • Today

    Today: Partly sunny, with a high near 60. West wind 5 to 10 mph.

    High: 60 °F

    Partly Sunny

  • Tonight

    Tonight: Patchy frost after 2am. Otherwise, increasing clouds, with a low around 35. Calm wind.

    Low: 35 °F

    Mostly Clear
    then Patchy
    Frost

  • Wednesday

    Wednesday: A 30 percent chance of showers, mainly after 4pm. Mostly cloudy, with a high near 59. Light and variable wind becoming south 5 to 10 mph in the afternoon. New precipitation amounts of less than a tenth of an inch possible.

    High: 59 °F

    Partly Sunny
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 50 percent chance of rain. Patchy fog after 1am. Otherwise, cloudy, with a low around 45. South wind around 5 mph.

    Low: 45 °F

    Chance Rain
    and Patchy
    Fog

  • Thursday

    Thursday: Rain likely, mainly after 2pm. Mostly cloudy, with a high near 60. Southeast wind 5 to 10 mph. Chance of precipitation is 60%.

    High: 60 °F

    Rain Likely

  • Thursday Night

    Thursday Night: Rain. Patchy fog after 10pm. Low around 45. Chance of precipitation is 90%.

    Low: 45 °F

    Rain and
    Patchy Fog

  • Friday

    Friday: Rain. High near 59. Chance of precipitation is 90%.

    High: 59 °F

    Rain

  • Friday Night

    Friday Night: Rain likely before 8pm, then a chance of showers between 8pm and midnight. Mostly cloudy, with a low around 46. Chance of precipitation is 60%.

    Low: 46 °F

    Rain Likely
    then Mostly
    Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 70.

    High: 70 °F

    Mostly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 60. West wind 5 to 10 mph.
Tonight
Patchy frost after 2am. Otherwise, increasing clouds, with a low around 35. Calm wind.
Wednesday
A 30 percent chance of showers, mainly after 4pm. Mostly cloudy, with a high near 59. Light and variable wind becoming south 5 to 10 mph in the afternoon. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
A 50 percent chance of rain. Patchy fog after 1am. Otherwise, cloudy, with a low around 45. South wind around 5 mph.
Thursday
Rain likely, mainly after 2pm. Mostly cloudy, with a high near 60. Southeast wind 5 to 10 mph. Chance of precipitation is 60%.
Thursday Night
Rain. Patchy fog after 10pm. Low around 45. Chance of precipitation is 90%.
Friday
Rain. High near 59. Chance of precipitation is 90%.
Friday Night
Rain likely before 8pm, then a chance of showers between 8pm and midnight. Mostly cloudy, with a low around 46. Chance of precipitation is 60%.
Saturday
Mostly sunny, with a high near 70.
Saturday Night
Partly cloudy, with a low around 50.
Sunday
Mostly sunny, with a high near 75.
Sunday Night
Partly cloudy, with a low around 50.
Monday
Mostly sunny, with a high near 71.
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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:
8:41 am EDT May 12, 2026
Forecast Valid:
10am EDT May 12, 2026-6pm EDT May 18, 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