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

47°F

8°C

Humidity 86%
Wind Speed Calm
Barometer 29.93 in (1013.7 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 5 Nov 1:53 am EST
Extended Forecast for

South Newcastle ME

  • Overnight

    Overnight: Partly cloudy, with a low around 51. Southwest wind around 5 mph.

    Low: 51 °F

    Partly Cloudy

  • Thursday

    Thursday: A 40 percent chance of rain, mainly between 1pm and 4pm. Increasing clouds, with a high near 66. South wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 66 °F

    Partly Sunny
    then Chance
    Rain

  • Thursday Night

    Thursday Night: A chance of rain before 3am, then a chance of rain after 4am. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 57. Southwest wind 5 to 10 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 57 °F

    Mostly Cloudy
    then Chance
    Rain and
    Patchy Fog

  • Friday

    Friday: A chance of rain before 7am, then rain likely after noon. Patchy fog before 11am, then patchy fog after 5pm. Otherwise, mostly cloudy, with a high near 67. Calm wind becoming south around 5 mph. Chance of precipitation is 70%.

    High: 67 °F

    Chance Rain
    and Patchy
    Fog then Rain
    Likely and
    Patchy Fog

  • Friday Night

    Friday Night: Rain. Areas of fog before 7pm. Low around 49. Calm wind becoming northeast around 5 mph after midnight. Chance of precipitation is 90%.

    Low: 49 °F

    Rain and
    Areas Fog

  • Saturday

    Saturday: Rain likely, mainly before 8am. Mostly cloudy, with a high near 57. Chance of precipitation is 60%.

    High: 57 °F

    Rain Likely

  • Saturday Night

    Saturday Night: Rain likely, mainly after 2am. Cloudy, with a low around 39. Chance of precipitation is 70%.

    Low: 39 °F

    Chance Rain
    then Rain
    Likely

  • Sunday

    Sunday: Rain likely, mainly before 11am. Mostly cloudy, with a high near 52. Chance of precipitation is 60%.

    High: 52 °F

    Rain Likely

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 34.

    Low: 34 °F

    Partly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 51. Southwest wind around 5 mph.
Thursday
A 40 percent chance of rain, mainly between 1pm and 4pm. Increasing clouds, with a high near 66. South wind 10 to 15 mph, with gusts as high as 25 mph.
Thursday Night
A chance of rain before 3am, then a chance of rain after 4am. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 57. Southwest wind 5 to 10 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Friday
A chance of rain before 7am, then rain likely after noon. Patchy fog before 11am, then patchy fog after 5pm. Otherwise, mostly cloudy, with a high near 67. Calm wind becoming south around 5 mph. Chance of precipitation is 70%.
Friday Night
Rain. Areas of fog before 7pm. Low around 49. Calm wind becoming northeast around 5 mph after midnight. Chance of precipitation is 90%.
Saturday
Rain likely, mainly before 8am. Mostly cloudy, with a high near 57. Chance of precipitation is 60%.
Saturday Night
Rain likely, mainly after 2am. Cloudy, with a low around 39. Chance of precipitation is 70%.
Sunday
Rain likely, mainly before 11am. Mostly cloudy, with a high near 52. Chance of precipitation is 60%.
Sunday Night
Partly cloudy, with a low around 34.
Monday
Mostly sunny, with a high near 54.
Monday Night
Partly cloudy, with a low around 31.
Tuesday
Sunny, with a high near 55.
Tuesday Night
Partly cloudy, with a low around 31.
Veterans Day
Mostly sunny, with a high near 52.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
South Newcastle ME
 43.99°N 69.6°W (Elev. 62 ft)
Last Update:
1:28 am EST Nov 5, 2026
Forecast Valid:
2am EST Nov 5, 2026-6pm EST Nov 11, 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