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20NM E Hyannis MA

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 2:52 am EDT Jun 8, 2026
Forecast Valid: 7am EDT Jun 8, 2026-6pm EDT Jun 14, 2026

Today

NNE wind 15 to 18 kt decreasing to 9 to 12 kt in the afternoon. Winds could gust as high as 26 kt. Sunny. Seas 3 to 4 ft.

Tonight

WSW wind 7 to 9 kt. Mostly clear. Seas 2 to 3 ft.

Tuesday

WSW wind 9 to 12 kt increasing to 12 to 15 kt in the afternoon. Sunny. Seas 2 to 3 ft.

Tuesday Night

SW wind 15 to 18 kt. Partly cloudy. Seas around 3 ft.

Wednesday

SW wind 15 to 18 kt, with gusts as high as 24 kt. Partly sunny. Seas around 3 ft.

Wednesday Night

SSW wind 16 to 18 kt. A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 11pm. Seas around 3 ft.

Thursday

SW wind around 15 kt. Showers likely before 9am, then a chance of showers after 2pm. Seas 2 to 3 ft.

Thursday Night

W wind 8 to 12 kt. A chance of showers. Seas around 2 ft.

Friday

W wind 7 to 9 kt becoming ESE in the morning. Partly sunny. Seas around 2 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.