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20NM E Hyannis MA

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 1:02 am EST Mar 1, 2026
Forecast Valid: 3am EST Mar 1, 2026-6pm EST Mar 7, 2026

Sunday

NNW wind 11 to 16 kt becoming N 16 to 21 kt in the morning. A slight chance of rain between 10am and noon, then a chance of snow. Seas 2 to 3 ft.

Sunday Night

NNW wind 16 to 19 kt. Widespread freezing spray after 11pm. Increasing clouds. Seas 3 to 4 ft.

Monday

N wind 9 to 12 kt becoming NW 5 to 8 kt in the afternoon. Mostly cloudy, then gradually becoming sunny. Seas 3 to 4 ft.

Monday Night

Variable winds less than 5 kt becoming SSW 5 to 9 kt after midnight. Mostly clear. Seas 2 to 3 ft.

Tuesday

S wind 12 to 15 kt. A chance of rain, mainly after 1pm. Seas 2 to 3 ft.

Tuesday Night

S wind 14 to 16 kt becoming WSW after midnight. Rain. Seas 3 to 4 ft.

Wednesday

W wind 10 to 13 kt becoming E 6 to 9 kt in the afternoon. Rain likely before 1pm. Seas 3 to 4 ft.

Wednesday Night

SSE wind 5 to 7 kt becoming SSW after midnight. A chance of rain. Seas around 2 ft.

Thursday

SW wind 9 to 12 kt. A chance of rain. Seas 2 to 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.