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.

Overcast

70°F

21°C

Humidity 84%
Wind Speed SE 7 mph
Barometer 29.79 in (1008.9 mb)
Dewpoint 65°F (18°C)
Visibility 7.00 mi
Last update 28 Jul 6:53 pm EDT
Extended Forecast for

South Bristol ME

  • Tonight

    Tonight: Patchy dense fog after 8pm. Otherwise, mostly cloudy, with a low around 63. Southeast wind around 5 mph.

    Low: 63 °F

    Patchy Dense
    Fog

  • Wednesday

    Wednesday: Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 75. East wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 75 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Cloudy, with a low around 58. East wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 58 °F

    Chance
    Showers then
    Showers
    Likely

  • Thursday

    Thursday: Showers. High near 73. Northeast wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 90%.

    High: 73 °F

    Showers

  • Thursday Night

    Thursday Night: Showers likely, mainly before 8pm. Mostly cloudy, with a low around 59. North wind around 5 mph. Chance of precipitation is 60%.

    Low: 59 °F

    Showers
    Likely then
    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

  • Friday Night

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

    Low: 59 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 61.

    Low: 61 °F

    Partly Cloudy

Detailed Forecast

Tonight
Patchy dense fog after 8pm. Otherwise, mostly cloudy, with a low around 63. Southeast wind around 5 mph.
Wednesday
Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 75. East wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Cloudy, with a low around 58. East wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
Showers. High near 73. Northeast wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 90%.
Thursday Night
Showers likely, mainly before 8pm. Mostly cloudy, with a low around 59. North wind around 5 mph. Chance of precipitation is 60%.
Friday
Mostly sunny, with a high near 79.
Friday Night
Partly cloudy, with a low around 59.
Saturday
Mostly sunny, with a high near 80.
Saturday Night
Partly cloudy, with a low around 61.
Sunday
Partly sunny, with a high near 81.
Sunday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 63.
Monday
A 40 percent chance of showers. Partly sunny, with a high near 81.
Monday Night
Mostly cloudy, with a low around 61.
Tuesday
Mostly sunny, with a high near 83.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
South Bristol ME
 43.88°N 69.57°W (Elev. 3 ft)
Last Update:
2:35 pm EDT Jul 28, 2026
Forecast Valid:
7pm EDT Jul 28, 2026-6pm EDT Aug 4, 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