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20NM E Hyannis MA

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 2:49 pm EDT Jul 2, 2026
Forecast Valid: 4pm EDT Jul 2, 2026-6pm EDT Jul 9, 2026

Tonight

WSW wind 11 to 16 kt. Patchy fog between midnight and 1am, then Patchy fog after 2am. Seas 2 to 3 ft.

Friday

W wind 7 to 9 kt becoming SW in the afternoon. Sunny. Seas around 2 ft.

Friday Night

W wind 8 to 12 kt. Mostly clear. Seas around 2 ft.

Independence Day

WSW wind 7 to 9 kt. A chance of showers and thunderstorms, mainly after 3pm. Seas around 2 ft.

Saturday Night

W wind 6 to 8 kt becoming NNW after midnight. A chance of showers, mainly before 11pm. Seas around 2 ft.

Sunday

N wind 5 to 7 kt becoming NE in the afternoon. Sunny. Seas around 2 ft.

Sunday Night

Variable winds 5 kt or less. Partly cloudy. Seas around 1 ft.

Monday

SE wind 6 to 8 kt. Partly sunny. Seas 1 to 2 ft.

Monday Night

ESE wind around 8 kt. A chance of showers. 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.