Coastal Waters Forecast for Boston Harbor (ANZ230) (Text-Only)
NWS Forecast for: Boston Harbor (ANZ230)
Issued by: National Weather Service Norton, MA
Last Update: 103 PM EDT Sat Aug 29 2026


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

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

Sun: SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Waves 1 foot or less, then around 2 ft in the afternoon.

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

Mon: N winds 5 to 10 kt, becoming E in the afternoon. Waves 1 foot or less.

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

Tue: SE winds 5 to 10 kt. Waves around 2 ft. A chance of showers.

Tue Night: SE winds 5 to 10 kt. Waves 1 foot or less. A chance of showers.

Wed And Wed Night: S winds 5 to 10 kt. Waves around 2 ft. Showers likely.

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)

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