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

90°F

32°C

Humidity 44%
Wind Speed W 9 G 18 mph
Barometer 29.76 in (1007.8 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Heat Index92°F (33°C)
Last update 4 Jul 1:53 pm EDT
Extended Forecast for

3 Miles ESE South Newcastle ME

  • Independence Day

    Independence Day: Isolated showers and thunderstorms before 3pm. Mostly sunny and hot, with a high near 91. Northwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    High: 91 °F

    Isolated
    T-storms

  • Tonight

    Tonight: Mostly clear, with a low around 61. Northwest wind around 5 mph becoming calm in the evening.

    Low: 61 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 82. Calm wind becoming south around 5 mph in the afternoon.

    High: 82 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 61. Calm wind.

    Low: 61 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 82. Calm wind becoming south around 5 mph in the afternoon.

    High: 82 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

Detailed Forecast

Independence Day
Isolated showers and thunderstorms before 3pm. Mostly sunny and hot, with a high near 91. Northwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Tonight
Mostly clear, with a low around 61. Northwest wind around 5 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 82. Calm wind becoming south around 5 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 61. Calm wind.
Monday
Mostly sunny, with a high near 82. Calm wind becoming south around 5 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 59.
Tuesday
Mostly sunny, with a high near 79.
Tuesday Night
Partly cloudy, with a low around 58.
Wednesday
Mostly sunny, with a high near 81.
Wednesday Night
Partly cloudy, with a low around 62.
Thursday
Mostly sunny, with a high near 89.
Thursday Night
Partly cloudy, with a low around 66.
Friday
A 40 percent chance of showers. Partly sunny and hot, with a high near 90.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ESE South Newcastle ME
 43.99°N 69.57°W (Elev. 200 ft)
Last Update:
9:51 am EDT Jul 4, 2026
Forecast Valid:
2pm EDT Jul 4, 2026-6pm EDT Jul 10, 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