Coastal Waters Forecast for Boston Harbor (ANZ230) (Text-Only)
NWS Forecast for: Boston Harbor (ANZ230)
Issued by: National Weather Service Norton, MA
Last Update: 405 AM EST Tue Nov 4 2025




Today: W winds 20 to 25 kt with gusts up to 40 kt. Waves around 2 ft.

Tonight: W winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Waves around 2 ft.

Wed: SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Waves around 2 ft.

Wed Night: SW winds 15 to 20 kt with gusts up to 25 kt, becoming W 25 to 30 kt with gusts up to 40 kt after midnight. Waves around 2 ft. Rain likely.

Thu: NW winds 25 to 30 kt with gusts up to 40 kt, diminishing to 20 to 25 kt with gusts up to 30 kt in the afternoon. Waves around 2 ft. A chance of rain in the morning.

Thu Night: NW winds 15 to 20 kt, becoming W 5 to 10 kt after midnight. Waves around 2 ft in the evening, then 1 foot or less.

Fri: SW winds 15 to 20 kt with gusts up to 25 kt. Waves around 2 ft.

Fri Night And Sat: SW winds 15 to 20 kt, diminishing to 10 to 15 kt. Gusts up to 25 kt. Waves around 2 ft. Rain likely.

Sat Night: NW winds 10 to 15 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