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20NM E Hyannis MA

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 1:23 am EDT May 11, 2026
Forecast Valid: 2am EDT May 11, 2026-6pm EDT May 17, 2026

Monday

NNW wind 9 to 12 kt becoming NNE 5 to 8 kt in the afternoon. A chance of showers, mainly before 2pm. Seas 2 to 3 ft.

Monday Night

SSW wind 5 to 7 kt becoming NNW after midnight. A slight chance of showers before 10pm. Seas around 3 ft.

Tuesday

N wind 7 to 11 kt. Sunny. Seas around 3 ft.

Tuesday Night

SW wind 6 to 8 kt. Increasing clouds. Seas around 3 ft.

Wednesday

S wind 7 to 10 kt increasing to 11 to 14 kt in the afternoon. Winds could gust as high as 20 kt. Partly sunny. Seas around 3 ft.

Wednesday Night

S wind 15 to 17 kt. A chance of showers, mainly after 1am. Seas around 3 ft.

Thursday

SSE wind 15 to 17 kt, with gusts as high as 24 kt. Showers. Patchy fog. Seas around 3 ft.

Thursday Night

S wind 6 to 10 kt becoming SW after midnight. A chance of showers. Patchy fog before 10pm. Seas around 3 ft.

Friday

NW wind 5 to 7 kt. Partly sunny. Seas 3 to 4 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.