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.

Mostly Cloudy

36°F

2°C

Humidity 73%
Wind Speed Calm
Barometer 30.49 in (1032.6 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 2 Apr 2:53 am EDT
Extended Forecast for

South Bristol ME

  • Overnight

    Overnight: Cloudy, with a low around 33. Northeast wind around 10 mph.

    Low: 33 °F

    Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 39. East wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 39 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: A chance of snow before 11pm, then a chance of rain. Cloudy, with a low around 32. East wind around 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 32 °F

    Chance
    Rain/Snow
    then Chance
    Rain

  • Friday

    Friday: Rain likely before 2pm, then a chance of showers between 2pm and 3pm. Cloudy, with a high near 51. South wind 5 to 10 mph. Chance of precipitation is 60%.

    High: 51 °F

    Rain Likely

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 38. Southwest wind 5 to 10 mph.

    Low: 38 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 49.

    High: 49 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Showers likely, mainly after 4am. Mostly cloudy, with a low around 34. Chance of precipitation is 60%.

    Low: 34 °F

    Mostly Cloudy
    then Showers
    Likely

  • Sunday

    Sunday: Showers. High near 49. Chance of precipitation is 100%.

    High: 49 °F

    Showers

  • Sunday Night

    Sunday Night: Showers likely, mainly before 8pm. Mostly cloudy, with a low around 35. Chance of precipitation is 60%.

    Low: 35 °F

    Showers
    Likely then
    Mostly Cloudy

Detailed Forecast

Overnight
Cloudy, with a low around 33. Northeast wind around 10 mph.
Thursday
Mostly cloudy, with a high near 39. East wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday Night
A chance of snow before 11pm, then a chance of rain. Cloudy, with a low around 32. East wind around 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Rain likely before 2pm, then a chance of showers between 2pm and 3pm. Cloudy, with a high near 51. South wind 5 to 10 mph. Chance of precipitation is 60%.
Friday Night
Mostly cloudy, with a low around 38. Southwest wind 5 to 10 mph.
Saturday
Mostly sunny, with a high near 49.
Saturday Night
Showers likely, mainly after 4am. Mostly cloudy, with a low around 34. Chance of precipitation is 60%.
Sunday
Showers. High near 49. Chance of precipitation is 100%.
Sunday Night
Showers likely, mainly before 8pm. Mostly cloudy, with a low around 35. Chance of precipitation is 60%.
Monday
Mostly sunny, with a high near 47.
Monday Night
Partly cloudy, with a low around 29.
Tuesday
Mostly sunny, with a high near 44.
Tuesday Night
Partly cloudy, with a low around 24.
Wednesday
Sunny, with a high near 41.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
South Bristol ME
 43.86°N 69.58°W (Elev. 98 ft)
Last Update:
2:45 am EDT Apr 2, 2026
Forecast Valid:
3am EDT Apr 2, 2026-6pm EDT Apr 8, 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