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20NM E Hyannis MA

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 2:06 am EST Mar 3, 2026
Forecast Valid: 4am EST Mar 3, 2026-6pm EDT Mar 9, 2026

Tuesday

S wind 7 to 10 kt becoming S 10 to 13 kt in the afternoon. A chance of rain and snow between noon and 2pm, then rain. Seas around 2 ft.

Tuesday Night

SE wind 13 to 16 kt becoming W after midnight. Winds could gust as high as 24 kt. Rain, mainly before 4am. Patchy fog after 10pm. Seas around 3 ft.

Wednesday

WNW wind 5 to 10 kt becoming SSW in the afternoon. A slight chance of rain before 7am. Patchy fog before 9am. Seas around 3 ft.

Wednesday Night

Variable winds 5 kt or less. Patchy fog before 8pm. Seas around 3 ft.

Thursday

Variable winds less than 5 kt becoming ENE 5 to 7 kt in the morning. A chance of rain, mainly after 9am. Seas around 2 ft.

Thursday Night

ENE wind 9 to 12 kt increasing to 12 to 15 kt after midnight. Rain, mainly after 1am. Seas 2 to 3 ft.

Friday

E wind 15 to 17 kt. Rain likely, mainly before 1pm. Seas 3 ft building to 6 ft.

Friday Night

ENE wind 10 to 13 kt decreasing to 7 to 10 kt after midnight. Cloudy. Seas 6 to 7 ft.

Saturday

SE wind 7 to 10 kt becoming SSW 11 to 14 kt in the morning. Mostly cloudy. Seas 5 to 6 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.