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20NM E Hyannis MA

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 2:54 pm EDT May 12, 2026
Forecast Valid: 5pm EDT May 12, 2026-6pm EDT May 19, 2026

Tonight

SSW wind 8 to 11 kt becoming WSW after midnight. Mostly clear. Seas around 3 ft.

Wednesday

SSW wind 9 to 12 kt increasing to 13 to 16 kt in the afternoon. Partly sunny. Seas 2 to 3 ft.

Wednesday Night

S wind around 15 kt, with gusts as high as 21 kt. Mostly cloudy. Seas around 3 ft.

Thursday

ESE wind 14 to 16 kt, with gusts as high as 22 kt. Showers, mainly after 11am. Patchy fog after 10am. Seas around 3 ft.

Thursday Night

E wind around 10 kt. Showers. Patchy fog. Seas around 3 ft.

Friday

ENE wind around 11 kt becoming NNE in the afternoon. A chance of showers, mainly before 5pm. Seas 3 to 4 ft.

Friday Night

NNW wind around 9 kt becoming WNW after midnight. Mostly cloudy. Seas around 4 ft.

Saturday

W wind 9 to 12 kt becoming SW 14 to 17 kt in the afternoon. Winds could gust as high as 23 kt. Sunny. Seas around 3 ft.

Saturday Night

SW wind 14 to 16 kt. Mostly clear. 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.