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 PM EDT Fri Mar 13 2026
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Overnight: S winds 15 to 20 kt, increasing to 20 to 25 kt. Waves around 2 ft. A slight chance of showers. Showers likely.

Sat: W winds 20 to 25 kt with gusts up to 30 kt. Waves around 2 ft.

Sat Night: W winds 20 to 25 kt, diminishing to 15 to 20 kt after midnight. Gusts up to 30 kt. Waves around 2 ft.

Sun: NW winds 5 to 10 kt, becoming E 10 to 15 kt in the afternoon. Waves 1 foot or less.

Sun Night: SE winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Gusts up to 25 kt. Waves 2 to 3 ft.

Mon And Mon Night: S winds 25 to 35 kt with gusts up to 40 kt. Waves 2 to 3 ft, except 4 to 6 ft at the outer harbor entrance. Rain.

Tue: SW winds 25 to 30 kt. Waves around 2 ft, except 4 to 6 ft at the outer harbor entrance. Rain likely.

Tue Night Through Wed Night: S winds 20 to 25 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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