| NWS Forecast for: Boston Harbor (ANZ230) Issued by: National Weather Service Norton, MA Last Update: 103 PM EDT Sat Oct 18 2025 |  |
| This Afternoon: E winds around 5 kt. Waves 1 foot or less, except 2 to 4 ft at the outer harbor entrance. Tonight: SE winds 5 to 10 kt, becoming SW after midnight. Waves 1 foot or less, except 2 to 4 ft at the outer harbor entrance. Sun: S winds around 5 kt, increasing to around 10 kt in the afternoon. Waves 1 foot or less, then around 2 ft in the afternoon. Sun Night: SE winds 10 to 15 kt. Gusts up to 20 kt after midnight. Waves 2 to 3 ft. Mon: SE winds 15 to 20 kt. Gusts up to 30 kt, increasing to 40 kt in the afternoon. Waves 2 to 3 ft. Showers. Vsby 1 to 3 nm. Mon Night: S winds 15 to 20 kt with gusts up to 30 kt, becoming SW 10 to 15 kt after midnight. Waves around 2 ft. Showers likely, mainly in the evening with vsby 1 to 3 nm. Tue: SW winds around 10 kt. Waves around 2 ft. Tue Night: S winds 5 to 10 kt. Waves around 2 ft. A chance of showers. Wed: S winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. Showers likely. Wed Night: W winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. A chance of showers. 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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