Coastal Waters Forecast for Boston Harbor (ANZ230) (Text-Only)
NWS Forecast for: Boston Harbor (ANZ230)
Issued by: National Weather Service Norton, MA
Last Update: 703 PM EDT Sat May 30 2026
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Tonight: NE winds 20 to 25 kt with gusts up to 30 kt, becoming N 5 to 10 kt after midnight. Waves 2 to 3 ft this evening, then 1 foot or less. At the outer harbor entrance, waves 3 to 5 ft.

Sun: NW winds 5 to 10 kt, becoming SE in the afternoon. Waves 1 foot or less, except 2 to 4 ft at the outer harbor entrance. A chance of showers in the afternoon.

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

Mon: N winds 10 to 15 kt, becoming NE in the afternoon. Waves around 2 ft. A chance of showers.

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

Tue And Tue Night: W winds 5 to 10 kt. Waves 1 foot or less.

Wed Through Thu Night: SW 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)

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