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20NM E Hyannis MA

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 3:55 pm EDT Mar 19, 2026
Forecast Valid: 5pm EDT Mar 19, 2026-6pm EDT Mar 26, 2026

Tonight

S wind 6 to 10 kt becoming SW after midnight. Cloudy during the early evening, then gradual clearing. Seas 2 to 3 ft.

Friday

W wind 7 to 12 kt becoming S in the afternoon. Winds could gust as high as 20 kt. Mostly cloudy. Seas 2 to 3 ft.

Friday Night

SSW wind 17 to 19 kt, with gusts as high as 28 kt. Rain likely, mainly after 1am. Seas 4 to 5 ft.

Saturday

WSW wind 10 to 13 kt becoming N in the afternoon. A chance of rain before 8am. Seas 3 to 4 ft.

Saturday Night

N wind 8 to 10 kt becoming WNW after midnight. Mostly cloudy. Seas around 3 ft.

Sunday

S wind around 11 kt. A slight chance of rain after 3pm. Seas around 3 ft.

Sunday Night

SSW wind 11 to 15 kt. Rain likely, mainly after 2am. Seas around 3 ft.

Monday

NE wind 15 to 18 kt becoming NNW in the afternoon. Rain likely. Seas 3 ft building to 5 ft.

Monday Night

NNW wind around 18 kt. Mostly cloudy. Seas around 5 ft.

*Notices:

This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.