Your Ultimate Boating Resource

HomeForecastsMassachusetts ForecastsHyannis, MA Marine Weather

Hyannis, MA Marine Weather Forecast

Station 44020 - NANTUCKET SOUND

December 29, 2025 12:40 am EST
Location: 41.497N 70.283W
Wind Direction: S (170°)
Wind Speed: 9.7 knots
Wind Gust: 11.7 knots
Atmospheric Pressure: 29.83 in (1010.0 mb)
Air Temperature: 40.5°F (4.7°C)
Dew Point: 39.6°F (4.2°C)
Water Temperature: 37.2°F (2.9°C)


Tonight - 33°F
Dec 28, 2025
6 to 13 mph SW
Light Rain
Rain after 11pm. Cloudy. Low around 33, with temperatures rising to around 41 overnight. Southwest wind 6 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Monday - 48°F
Dec 29, 2025
13 to 18 mph SW
Light Rain
Rain and patchy fog. Cloudy, with a high near 48. Southwest wind 13 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Monday Night - 24°F
Dec 29, 2025
21 mph W
Chance Rain Showers then Partly Cloudy
A chance of rain showers before 11pm. Partly cloudy, with a low around 24. West wind around 21 mph, with gusts as high as 38 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
Tuesday - 30°F
Dec 30, 2025
21 mph W
Partly Sunny
Partly sunny, with a high near 30. West wind around 21 mph, with gusts as high as 38 mph.
Tuesday Night - 23°F
Dec 30, 2025
15 to 20 mph W
Mostly Cloudy
Mostly cloudy, with a low around 23. West wind 15 to 20 mph, with gusts as high as 35 mph.
Wednesday - 35°F
Dec 31, 2025
16 mph W
Slight Chance Light Snow
A slight chance of snow after 8am. Mostly cloudy, with a high near 35. West wind around 16 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.
Wednesday Night - 21°F
Dec 31, 2025
10 to 14 mph W
Chance Light Snow
A chance of snow. Mostly cloudy, with a low around 21. West wind 10 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.
New Year's Day - 29°F
Jan 01, 2026
12 mph W
Chance Light Snow
A chance of snow. Partly sunny, with a high near 29. West wind around 12 mph. Chance of precipitation is 30%.
Thursday Night - 19°F
Jan 01, 2026
8 mph NW
Chance Light Snow
A chance of snow. Mostly cloudy, with a low around 19. Northwest wind around 8 mph. Chance of precipitation is 30%.
Friday - 29°F
Jan 02, 2026
10 mph NW
Chance Light Snow
A chance of snow before 5pm. Partly sunny, with a high near 29. Northwest wind around 10 mph. Chance of precipitation is 30%.
Friday Night - 22°F
Jan 02, 2026
8 mph W
Partly Cloudy
Partly cloudy, with a low around 22. West wind around 8 mph.
Saturday - 34°F
Jan 03, 2026
6 to 9 mph W
Mostly Sunny then Slight Chance Light Snow
A slight chance of snow after 3pm. Mostly sunny, with a high near 34. West wind 6 to 9 mph.
Saturday Night - 24°F
Jan 03, 2026
8 mph W
Chance Light Snow
A chance of snow. Partly cloudy, with a low around 24. West wind around 8 mph. Chance of precipitation is 30%.
Sunday - 34°F
Jan 04, 2026
8 to 12 mph W
Slight Chance Light Snow
A slight chance of snow before 11am, then a slight chance of rain between 11am and 5pm, then a slight chance of snow. Mostly sunny, with a high near 34. West wind 8 to 12 mph.

Don't Miss