Coastal Waters Forecast for Boston Harbor (ANZ230) (Text-Only)
NWS Forecast for: Boston Harbor (ANZ230)
Issued by: National Weather Service Norton, MA
Last Update: 1003 PM EST Tue Feb 17 2026


Overnight: W winds 5 to 10 kt. Waves 1 foot or less.

Wed: W winds 5 to 10 kt, becoming NW in the afternoon. Waves 1 foot or less. Snow likely in the afternoon.

Wed Night: N winds 5 to 10 kt, increasing to 10 to 15 kt after midnight. Waves 1 foot or less, then around 2 ft after midnight. Snow.

Thu: N winds 10 to 15 kt, becoming E around 5 kt in the afternoon. Waves around 2 ft in the morning, then 1 foot or less.

Thu Night: SW winds around 5 kt. Waves 1 foot or less.

Fri: SE winds 5 to 10 kt, becoming E 10 to 15 kt in the afternoon. Waves 1 foot or less, then around 2 ft in the afternoon. A chance of snow. Sleet likely, a chance of rain and freezing rain in the afternoon.

Fri Night: NE winds 10 to 15 kt. Waves around 2 ft. Snow. Sleet likely with a chance of rain in the evening.

Sat And Sat Night: NE winds 10 to 15 kt. Waves around 2 ft, then 1 foot or less. A chance of snow and rain.

Sun: NE winds 15 to 20 kt. Waves 2 to 3 ft. A chance of snow.

Sun Night: NE winds 25 to 30 kt with gusts up to 35 kt. Waves 2 to 3 ft, except 5 to 8 ft at the outer harbor entrance. Snow 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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