Coastal Waters Forecast for Boston Harbor (ANZ230) (Text-Only)
NWS Forecast for: Boston Harbor (ANZ230)
Issued by: National Weather Service Norton, MA
Last Update: 1004 AM EDT Sun Aug 31 2025
Print


This Afternoon: NE winds 5 to 10 kt, becoming E. Waves 1 foot or less.

Tonight: SE winds 5 to 10 kt, becoming NW after midnight. Waves 1 foot or less.

Mon: N winds 5 to 10 kt, becoming NE in the afternoon. Waves 1 foot or less, then around 2 ft in the afternoon.

Mon Night: NE winds 5 to 10 kt. Waves 1 foot or less.

Tue: NE winds 5 to 10 kt. Waves 1 foot or less, then around 2 ft in the afternoon.

Tue Night: SE winds 5 to 10 kt, becoming SW after midnight. Waves around 2 ft in the evening, then 1 foot or less.

Wed Through Thu: S winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft.

Thu Night: S winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. A chance of showers.

seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height.







Zone Forecast: Boston Harbor (ANZ230)

Visit your local NWS office at: https://www.weather.gov/boston