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.

A Few Clouds

58°F

14°C

Humidity 75%
Wind Speed E 5 mph
Barometer 30.22 in (1023.3 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 4 Oct 5:53 pm EDT
Extended Forecast for

Newcastle ME

  • Tonight

    Tonight: Scattered showers, mainly after 4am. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 48. Southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.

    Low: 48 °F

    Scattered
    Showers and
    Patchy Fog

  • Monday

    Monday: Scattered showers, mainly before 7am. Patchy fog before 9am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 67. Southwest wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.

    High: 67 °F

    Scattered
    Showers and
    Patchy Fog
    then Sunny

  • Monday Night

    Monday Night: Clear, with a low around 38. West wind around 10 mph, with gusts as high as 25 mph.

    Low: 38 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 58. West wind around 15 mph, with gusts as high as 30 mph.

    High: 58 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 37. West wind around 5 mph becoming calm in the evening.

    Low: 37 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 61.

    High: 61 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 47.

    Low: 47 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 69.

    High: 69 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

Detailed Forecast

Tonight
Scattered showers, mainly after 4am. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 48. Southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Monday
Scattered showers, mainly before 7am. Patchy fog before 9am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 67. Southwest wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Monday Night
Clear, with a low around 38. West wind around 10 mph, with gusts as high as 25 mph.
Tuesday
Sunny, with a high near 58. West wind around 15 mph, with gusts as high as 30 mph.
Tuesday Night
Mostly clear, with a low around 37. West wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 61.
Wednesday Night
Partly cloudy, with a low around 47.
Thursday
Mostly sunny, with a high near 69.
Thursday Night
Partly cloudy, with a low around 44.
Friday
Sunny, with a high near 66.
Friday Night
Partly cloudy, with a low around 42.
Saturday
Mostly sunny, with a high near 63.
Saturday Night
Mostly clear, with a low around 39.
Sunday
Sunny, with a high near 62.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Newcastle ME
 44.05°N 69.53°W (Elev. 3 ft)
Last Update:
3:55 pm EDT Oct 4, 2026
Forecast Valid:
6pm EDT Oct 4, 2026-6pm EDT Oct 11, 2026
 
Forecast Discussion
 
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Additional Resources

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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