Coastal Waters Forecast for Boston Harbor (ANZ230) (Text-Only)
NWS Forecast for: Boston Harbor (ANZ230)
Issued by: National Weather Service Norton, MA
Last Update: 1005 AM EDT Tue Aug 11 2026
Print


This Afternoon: W winds around 10 kt. Waves 1 foot or less, then around 2 ft.

Tonight: NW winds 5 to 10 kt. Waves 1 foot or less.

Wed: NW winds around 5 kt, becoming SE in the afternoon. Waves 1 foot or less.

Wed Night: S winds 5 to 10 kt, becoming W after midnight. Waves 1 foot or less.

Thu: SW winds 5 to 10 kt. Waves 1 foot or less, then around 2 ft in the afternoon. A chance of showers in the afternoon.

Thu Night: SW winds 5 to 10 kt. Waves 1 foot or less. A chance of showers in the evening.

Fri Through Sat Night: W winds 10 to 15 kt with gusts up to 20 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