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Southport, ME Marine Weather Forecast

Overnight - 14°F
Dec 05, 2025
10 to 15 mph NW
Mostly Clear
Mostly clear, with a low around 14. Wind chill values as low as -1. Northwest wind 10 to 15 mph, with gusts as high as 35 mph.
Friday - 27°F
Dec 05, 2025
5 to 10 mph W
Sunny
Sunny, with a high near 27. West wind 5 to 10 mph.
Friday Night - 22°F
Dec 05, 2025
5 to 10 mph W
Partly Cloudy
Partly cloudy, with a low around 22. West wind 5 to 10 mph.
Saturday - 38°F
Dec 06, 2025
0 to 10 mph W
Chance Snow Showers
A chance of snow showers between 9am and noon, then a chance of rain and snow showers. Mostly cloudy, with a high near 38. West wind 0 to 10 mph. Chance of precipitation is 40%.
Saturday Night - 26°F
Dec 06, 2025
10 mph W
Slight Chance Rain Showers then Partly Cloudy
A slight chance of rain showers before 7pm. Partly cloudy, with a low around 26. West wind around 10 mph.
Sunday - 34°F
Dec 07, 2025
5 to 10 mph N
Partly Sunny
Partly sunny, with a high near 34.
Sunday Night - 19°F
Dec 07, 2025
5 to 10 mph NE
Heavy Snow Likely
Snow likely after 7pm. Mostly cloudy, with a low around 19. Chance of precipitation is 60%. New snow accumulation of 2 to 4 inches possible.
Monday - 26°F
Dec 08, 2025
15 mph N
Chance Light Snow then Mostly Sunny
A chance of snow before 10am. Mostly sunny, with a high near 26. Chance of precipitation is 50%. New snow accumulation of 2 to 4 inches possible.
Monday Night - 13°F
Dec 08, 2025
10 to 15 mph NW
Mostly Clear
Mostly clear, with a low around 13.
Tuesday - 33°F
Dec 09, 2025
5 to 15 mph W
Mostly Sunny then Slight Chance Light Snow
A slight chance of snow after 5pm. Mostly sunny, with a high near 33.
Tuesday Night - 27°F
Dec 09, 2025
10 to 15 mph SW
Chance Light Snow
A chance of snow before 3am. Mostly cloudy, with a low around 27. Chance of precipitation is 50%.
Wednesday - 43°F
Dec 10, 2025
10 mph SW
Mostly Cloudy then Chance Light Rain
A chance of rain after noon. Mostly cloudy, with a high near 43. Chance of precipitation is 30%.
Wednesday Night - 35°F
Dec 10, 2025
10 mph S
Light Rain Likely
Rain likely before 1am, then rain and snow likely. Cloudy, with a low around 35. Chance of precipitation is 70%.
Thursday - 42°F
Dec 11, 2025
10 to 15 mph W
Light Rain Likely
Rain likely. Mostly cloudy, with a high near 42.

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