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20NM E Hyannis MA

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 1:20 am EDT Jul 1, 2026
Forecast Valid: 1am EDT Jul 1, 2026-6pm EDT Jul 7, 2026

Wednesday

SW wind 15 to 19 kt, with gusts as high as 26 kt. A chance of showers and thunderstorms, mainly before 11am. Seas around 3 ft.

Wednesday Night

SW wind around 19 kt. A chance of showers and thunderstorms, mainly after 9pm. Seas around 3 ft.

Thursday

SW wind around 17 kt, with gusts as high as 25 kt. A slight chance of showers and thunderstorms before 11am. Seas around 3 ft.

Thursday Night

SW wind 11 to 15 kt, with gusts as high as 23 kt. A slight chance of showers before 10pm. Seas around 3 ft.

Friday

W wind 7 to 9 kt. Sunny. Seas around 2 ft.

Friday Night

WSW wind 8 to 10 kt becoming WNW after midnight. Mostly clear. Seas around 2 ft.

Independence Day

WNW wind 6 to 8 kt becoming SSW in the afternoon. Sunny. Seas 1 to 2 ft.

Saturday Night

SW wind around 7 kt becoming WNW after midnight. A chance of showers. Seas 1 to 2 ft.

Sunday

NW wind around 7 kt becoming NNE in the afternoon. Mostly sunny. Seas around 1 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.