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.

Overcast

61°F

16°C

Humidity 63%
Wind Speed SE 7 mph
Barometer 30.16 in (1021.3 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 20 Sep 10:53 am EDT
Extended Forecast for

South Newcastle ME

  • Today

    Today: Rain likely, mainly after 4pm. Mostly cloudy, with a high near 59. South wind 5 to 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 59 °F

    Rain Likely

  • Tonight

    Tonight: Rain before 11pm, then a chance of showers between 11pm and 2am. Patchy fog before 11pm. Low around 43. Calm wind. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 43 °F

    Rain and
    Patchy Fog
    then Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 68. North wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 68 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 42. North wind around 5 mph.

    Low: 42 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 64. Northeast wind 5 to 10 mph.

    High: 64 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 42.

    Low: 42 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 42.

    Low: 42 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny

Detailed Forecast

Today
Rain likely, mainly after 4pm. Mostly cloudy, with a high near 59. South wind 5 to 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Rain before 11pm, then a chance of showers between 11pm and 2am. Patchy fog before 11pm. Low around 43. Calm wind. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Mostly sunny, with a high near 68. North wind 5 to 10 mph, with gusts as high as 20 mph.
Monday Night
Mostly cloudy, with a low around 42. North wind around 5 mph.
Tuesday
Partly sunny, with a high near 64. Northeast wind 5 to 10 mph.
Tuesday Night
Partly cloudy, with a low around 42.
Wednesday
Sunny, with a high near 64.
Wednesday Night
Partly cloudy, with a low around 42.
Thursday
Mostly sunny, with a high near 65.
Thursday Night
Mostly cloudy, with a low around 43.
Friday
A 30 percent chance of showers. Mostly cloudy, with a high near 65.
Friday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 45.
Saturday
A 30 percent chance of showers. Partly sunny, with a high near 66.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
South Newcastle ME
 44.02°N 69.63°W (Elev. 174 ft)
Last Update:
10:44 am EDT Sep 20, 2026
Forecast Valid:
11am EDT Sep 20, 2026-6pm EDT Sep 26, 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