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

76°F

24°C

Humidity 74%
Wind Speed Calm
Barometer 29.88 in (1011.6 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Heat Index77°F (25°C)
Last update 19 Aug 8:53 am EDT
Extended Forecast for

Southport ME

  • Today

    Today: Patchy fog before 10am. Otherwise, partly sunny, with a high near 71. Light south wind increasing to 5 to 10 mph in the afternoon.

    High: 71 °F

    Patchy Fog
    then Partly
    Sunny

  • Tonight

    Tonight: Patchy fog. Otherwise, mostly cloudy, with a low around 61. South wind around 5 mph becoming calm.

    Low: 61 °F

    Patchy Fog

  • Thursday

    Thursday: Patchy fog between 11am and 2pm. Otherwise, mostly sunny, with a high near 74. Calm wind becoming south around 5 mph in the afternoon.

    High: 74 °F

    Patchy Fog

  • Thursday Night

    Thursday Night: Cloudy during the early evening, then gradual clearing, with a low around 59. Calm wind becoming north around 5 mph.

    Low: 59 °F

    Gradual
    Clearing

  • Friday

    Friday: Sunny, with a high near 73. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 73 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 69.

    High: 69 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 50 percent chance of showers after 7pm. Mostly cloudy, with a low around 58.

    Low: 58 °F

    Chance
    Showers

  • Sunday

    Sunday: A 40 percent chance of showers. Mostly cloudy, with a high near 71.

    High: 71 °F

    Chance
    Showers

Detailed Forecast

Today
Patchy fog before 10am. Otherwise, partly sunny, with a high near 71. Light south wind increasing to 5 to 10 mph in the afternoon.
Tonight
Patchy fog. Otherwise, mostly cloudy, with a low around 61. South wind around 5 mph becoming calm.
Thursday
Patchy fog between 11am and 2pm. Otherwise, mostly sunny, with a high near 74. Calm wind becoming south around 5 mph in the afternoon.
Thursday Night
Cloudy during the early evening, then gradual clearing, with a low around 59. Calm wind becoming north around 5 mph.
Friday
Sunny, with a high near 73. Calm wind becoming southeast around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 57.
Saturday
Mostly sunny, with a high near 69.
Saturday Night
A 50 percent chance of showers after 7pm. Mostly cloudy, with a low around 58.
Sunday
A 40 percent chance of showers. Mostly cloudy, with a high near 71.
Sunday Night
A 40 percent chance of showers before 1am. Mostly cloudy, with a low around 60.
Monday
Mostly sunny, with a high near 74.
Monday Night
Partly cloudy, with a low around 58.
Tuesday
Mostly sunny, with a high near 73.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Southport ME
 43.85°N 69.67°W (Elev. 0 ft)
Last Update:
6:12 am EDT Aug 19, 2026
Forecast Valid:
9am EDT Aug 19, 2026-6pm EDT Aug 25, 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