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20NM E Hyannis MA

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 9:33 pm EDT May 9, 2026
Forecast Valid: 2am EDT May 10, 2026-6pm EDT May 16, 2026

Sunday

SSW wind 8 to 11 kt. A slight chance of showers before 7am. Areas of fog. Seas around 3 ft.

Sunday Night

SW wind 6 to 9 kt becoming NNW after midnight. A chance of showers, mainly after midnight. Areas of fog before 1am. Seas around 3 ft.

Monday

NNW wind around 7 kt. Showers likely, mainly between 11am and 3pm. Seas 2 to 3 ft.

Monday Night

W wind 5 to 10 kt becoming NNW after midnight. A chance of showers, mainly before 10pm. Seas around 3 ft.

Tuesday

N wind 11 to 14 kt decreasing to 8 to 11 kt in the afternoon. Sunny. Seas around 3 ft.

Tuesday Night

SSW wind around 7 kt becoming WSW after midnight. Partly cloudy. Seas around 3 ft.

Wednesday

S wind 5 to 8 kt increasing to 9 to 12 kt in the afternoon. Partly sunny. Seas around 3 ft.

Wednesday Night

SSE wind 11 to 13 kt. A chance of showers. Seas around 3 ft.

Thursday

SE wind around 15 kt. Showers. Seas around 3 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.