NWS Forecast for: Boston Harbor (ANZ230) Issued by: National Weather Service Norton, MA Last Update: 403 AM EDT Sat Aug 15 2026

Today: N winds around 5 kt, becoming E this afternoon. Waves 1 foot or less. Tonight: SE winds 5 to 10 kt, becoming NW after midnight. Waves 1 foot or less. Sun: NE winds around 5 kt, becoming SE 10 to 15 kt in the afternoon. Waves 1 foot or less, then around 2 ft in the afternoon. Sun Night: S winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. Showers likely after midnight. Mon: SE winds 10 to 15 kt, becoming E in the afternoon. Gusts up to 20 kt. Waves 2 to 3 ft. Showers likely. Mon Night: NE winds 5 to 10 kt, becoming N after midnight. Waves around 2 ft in the evening, then 1 foot or less. Tue Through Wed Night: S winds 5 to 10 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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