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Cape Porpoise, ME Marine Weather Forecast

Overnight - 53°F
May 17, 2026
10 to 15 mph SW
Chance Rain Showers
A chance of rain showers before 3am. Mostly cloudy, with a low around 53. Southwest wind 10 to 15 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
Sunday - 69°F
May 17, 2026
10 to 15 mph W
Sunny
Sunny, with a high near 69. West wind 10 to 15 mph, with gusts as high as 25 mph. New rainfall amounts less than a tenth of an inch possible.
Sunday Night - 49°F
May 17, 2026
5 to 10 mph NW
Mostly Clear
Mostly clear, with a low around 49. Northwest wind 5 to 10 mph.
Monday - 59°F
May 18, 2026
5 to 10 mph E
Mostly Sunny
Mostly sunny, with a high near 59. East wind 5 to 10 mph.
Monday Night - 50°F
May 18, 2026
10 mph S
Mostly Clear
Mostly clear, with a low around 50. South wind around 10 mph.
Tuesday - 73°F
May 19, 2026
10 to 15 mph SW
Mostly Sunny
Mostly sunny, with a high near 73.
Tuesday Night - 61°F
May 19, 2026
10 mph SW
Partly Cloudy
Partly cloudy, with a low around 61.
Wednesday - 75°F
May 20, 2026
10 to 15 mph SW
Partly Sunny then Showers And Thunderstorms Likely
A chance of rain showers between noon and 2pm, then showers and thunderstorms likely. Partly sunny, with a high near 75. Chance of precipitation is 60%.
Wednesday Night - 51°F
May 20, 2026
10 mph W
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Mostly cloudy, with a low around 51. Chance of precipitation is 50%.
Thursday - 60°F
May 21, 2026
5 to 10 mph NW
Partly Sunny
Partly sunny, with a high near 60.
Thursday Night - 45°F
May 21, 2026
5 to 10 mph NW
Partly Cloudy
Partly cloudy, with a low around 45.
Friday - 57°F
May 22, 2026
5 to 10 mph E
Mostly Sunny
Mostly sunny, with a high near 57.
Friday Night - 46°F
May 22, 2026
5 to 10 mph W
Mostly Cloudy
Mostly cloudy, with a low around 46.
Saturday - 56°F
May 23, 2026
5 to 10 mph E
Partly Sunny
Partly sunny, with a high near 56.

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