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20NM E Hyannis MA

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 6:21 am EDT Apr 26, 2026
Forecast Valid: 8am EDT Apr 26, 2026-6pm EDT May 2, 2026

Today

Variable winds 5 kt or less. A slight chance of showers between 10am and 3pm. Seas around 2 ft.

Tonight

NE wind 6 to 8 kt. Mostly cloudy. Seas around 2 ft.

Monday

NE wind 11 to 14 kt, with gusts as high as 22 kt. Sunny. Seas 2 to 3 ft.

Monday Night

NE wind around 12 kt, with gusts as high as 23 kt. Mostly clear. Seas 3 to 4 ft.

Tuesday

NE wind around 14 kt. Mostly sunny. Seas 4 to 5 ft.

Tuesday Night

NNE wind 10 to 12 kt. A slight chance of showers after 10pm. Seas around 6 ft.

Wednesday

NE wind around 11 kt. A chance of showers between 10am and 2pm. Seas around 6 ft.

Wednesday Night

ESE wind around 10 kt. A chance of showers. Seas 5 to 6 ft.

Thursday

ESE wind around 10 kt. Showers likely. Seas around 5 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.