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20NM E Hyannis MA

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 2:28 pm EDT Apr 26, 2026
Forecast Valid: 6pm EDT Apr 26, 2026-6pm EDT May 3, 2026

Tonight

Variable winds less than 5 kt becoming NE 5 to 7 kt after midnight. A slight chance of showers before midnight. Seas around 2 ft.

Monday

NE wind around 13 kt. Partly sunny, then gradually becoming sunny. Seas 2 to 3 ft.

Monday Night

NNE wind around 12 kt. Mostly clear. Seas around 3 ft.

Tuesday

NNE wind around 15 kt. A slight chance of showers after 5pm. Patchy fog before 9am. Seas around 4 ft.

Tuesday Night

NE wind 10 to 12 kt. A chance of showers, mainly after 11pm. Seas around 5 ft.

Wednesday

ENE wind around 10 kt. A chance of showers, mainly after 3pm. Seas around 5 ft.

Wednesday Night

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

Thursday

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

Thursday Night

ESE wind 9 to 12 kt becoming W 13 to 16 kt after midnight. 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.