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20NM E Hyannis MA

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 3:16 pm EDT Apr 6, 2026
Forecast Valid: 3pm EDT Apr 6, 2026-6pm EDT Apr 13, 2026

This Afternoon

WSW wind around 12 kt. Mostly sunny. Seas around 3 ft.

Tonight

W wind 8 to 11 kt becoming WNW 5 to 8 kt after midnight. Increasing clouds. Seas 2 to 3 ft.

Tuesday

WSW wind around 9 kt becoming S in the morning. A chance of showers, mainly before 1pm. Seas around 2 ft.

Tuesday Night

NNW wind 11 to 14 kt increasing to 14 to 17 kt after midnight. Partly cloudy. Seas 2 to 3 ft.

Wednesday

N wind 11 to 14 kt becoming NE 7 to 10 kt in the afternoon. Sunny. Seas 2 to 3 ft.

Wednesday Night

E wind around 6 kt becoming SSE after midnight. Clear. Seas around 2 ft.

Thursday

SSE wind 7 to 9 kt. Sunny. Seas 1 to 2 ft.

Thursday Night

SE wind 7 to 9 kt. Partly cloudy. Seas around 2 ft.

Friday

S wind around 7 kt. Mostly sunny. 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.