Coastal Waters Forecast for Boston Harbor (ANZ230) (Text-Only)
NWS Forecast for: Boston Harbor (ANZ230)
Issued by: National Weather Service Norton, MA
Last Update: 404 AM EDT Thu Sep 10 2026




Today: W winds 10 to 15 kt with gusts up to 30 kt. Waves around 2 ft. A chance of showers this morning.

Tonight: W winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft.

Fri: NW winds around 10 kt. Gusts up to 20 kt in the morning. Waves around 2 ft.

Fri Night: NW winds around 5 kt. Waves 1 foot or less.

Sat: N winds around 5 kt, becoming SE with gusts up to 20 kt in the afternoon. Waves 1 foot or less, then around 2 ft in the afternoon.

Sat Night: S winds 5 to 10 kt. Gusts up to 20 kt in the evening. Waves around 2 ft in the evening, then 1 foot or less. Scattered showers after midnight.

Sun: S winds 5 to 10 kt. Waves around 2 ft. Numerous showers.

Sun Night Through Mon Night: NE winds 5 to 10 kt. Waves around 2 ft.

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