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.

Light Rain

68°F

20°C

Humidity 87%
Wind Speed Calm
Barometer 29.85 in (1010.8 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 30 Jul 8:53 pm EDT
Extended Forecast for

Newcastle ME

  • Tonight

    Tonight: A 20 percent chance of showers before midnight. Patchy fog. Otherwise, mostly cloudy, with a low around 59. Calm wind.

    Low: 59 °F

    Slight Chance
    Showers and
    Patchy Fog
    then Patchy
    Fog

  • Friday

    Friday: Patchy fog before 10am. Otherwise, mostly sunny, with a high near 83. North wind around 5 mph becoming west in the afternoon.

    High: 83 °F

    Patchy Fog
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 59. Calm wind.

    Low: 59 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 83. Light and variable wind becoming south 5 to 10 mph in the afternoon.

    High: 83 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 61. Calm wind.

    Low: 61 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 82.

    High: 82 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A 40 percent chance of showers after 11pm. Mostly cloudy, with a low around 62.

    Low: 62 °F

    Chance
    Showers

  • Monday

    Monday: Showers likely, mainly between 9am and 1pm. Mostly cloudy, with a high near 83. Chance of precipitation is 60%.

    High: 83 °F

    Showers
    Likely

  • Monday Night

    Monday Night: A 30 percent chance of showers before 9pm. Partly cloudy, with a low around 60.

    Low: 60 °F

    Chance
    Showers then
    Partly Cloudy

Detailed Forecast

Tonight
A 20 percent chance of showers before midnight. Patchy fog. Otherwise, mostly cloudy, with a low around 59. Calm wind.
Friday
Patchy fog before 10am. Otherwise, mostly sunny, with a high near 83. North wind around 5 mph becoming west in the afternoon.
Friday Night
Mostly clear, with a low around 59. Calm wind.
Saturday
Mostly sunny, with a high near 83. Light and variable wind becoming south 5 to 10 mph in the afternoon.
Saturday Night
Mostly cloudy, with a low around 61. Calm wind.
Sunday
Partly sunny, with a high near 82.
Sunday Night
A 40 percent chance of showers after 11pm. Mostly cloudy, with a low around 62.
Monday
Showers likely, mainly between 9am and 1pm. Mostly cloudy, with a high near 83. Chance of precipitation is 60%.
Monday Night
A 30 percent chance of showers before 9pm. Partly cloudy, with a low around 60.
Tuesday
Sunny, with a high near 87.
Tuesday Night
Mostly clear, with a low around 60.
Wednesday
Sunny, with a high near 86.
Wednesday Night
Partly cloudy, with a low around 62.
Thursday
Mostly sunny, with a high near 86.
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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:
2:23 pm EDT Jul 30, 2026
Forecast Valid:
9pm EDT Jul 30, 2026-6pm EDT Aug 6, 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