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

54°F

12°C

Humidity 59%
Wind Speed NA
Barometer 30.02 in (1016.4 mb)
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Last update 18 Oct 9:53 am EDT
Extended Forecast for

South Bristol ME

  • Today

    Today: Sunny, with a high near 63. North wind around 5 mph becoming southwest in the afternoon.

    High: 63 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 45. Calm wind.

    Low: 45 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 64. Light southeast wind becoming south 5 to 10 mph in the morning.

    High: 64 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A 30 percent chance of showers after 4am. Mostly cloudy, with a low around 49. South wind 5 to 10 mph.

    Low: 49 °F

    Partly Cloudy
    then Chance
    Showers

  • Monday

    Monday: Showers, mainly after 10am. High near 64. Breezy, with a southeast wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%.

    High: 64 °F

    Showers and
    Breezy

  • Monday Night

    Monday Night: Showers, mainly before 1am. Low around 48. Chance of precipitation is 80%.

    Low: 48 °F

    Showers

  • Tuesday

    Tuesday: A 30 percent chance of showers before 1pm. Mostly sunny, with a high near 62.

    High: 62 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers after 11pm. Mostly cloudy, with a low around 48.

    Low: 48 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Showers. High near 63. Chance of precipitation is 80%.

    High: 63 °F

    Showers

Detailed Forecast

Today
Sunny, with a high near 63. North wind around 5 mph becoming southwest in the afternoon.
Tonight
Mostly clear, with a low around 45. Calm wind.
Sunday
Mostly sunny, with a high near 64. Light southeast wind becoming south 5 to 10 mph in the morning.
Sunday Night
A 30 percent chance of showers after 4am. Mostly cloudy, with a low around 49. South wind 5 to 10 mph.
Monday
Showers, mainly after 10am. High near 64. Breezy, with a southeast wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%.
Monday Night
Showers, mainly before 1am. Low around 48. Chance of precipitation is 80%.
Tuesday
A 30 percent chance of showers before 1pm. Mostly sunny, with a high near 62.
Tuesday Night
A 40 percent chance of showers after 11pm. Mostly cloudy, with a low around 48.
Wednesday
Showers. High near 63. Chance of precipitation is 80%.
Wednesday Night
Showers likely, mainly before 9pm. Mostly cloudy, with a low around 44. Chance of precipitation is 60%.
Thursday
A 30 percent chance of showers. Partly sunny, with a high near 61.
Thursday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 41.
Friday
A 30 percent chance of showers. Partly sunny, with a high near 59.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
South Bristol ME
 43.88°N 69.57°W (Elev. 3 ft)
Last Update:
10:00 am EDT Oct 18, 2025
Forecast Valid:
10am EDT Oct 18, 2025-6pm EDT Oct 24, 2025
 
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