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12NM NW Hyannis MA

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 1:56 pm EDT Sep 20, 2026
Forecast Valid: 12am EDT Sep 21, 2026-6pm EDT Sep 27, 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM EDT MONDAY THROUGH

Overnight

Variable winds 5 kt or less. Rain. Patchy fog. Seas 1 ft or less.

Monday

NNE wind 14 to 16 kt, with gusts as high as 24 kt. Rain likely, mainly before 8am. Seas 1 ft or less.

Monday Night

NE wind 10 to 12 kt. Mostly cloudy. Seas 1 ft or less.

Tuesday

NE wind 14 to 16 kt, with gusts as high as 24 kt. A slight chance of showers after 11am. Seas 1 ft or less.

Tuesday Night

ENE wind 15 to 17 kt, with gusts as high as 26 kt. Mostly cloudy. Seas 1 ft or less.

Wednesday

NE wind around 20 kt, with gusts as high as 30 kt. Partly sunny. Seas 1 ft or less.

Wednesday Night

ENE wind around 20 kt, with gusts as high as 28 kt. Mostly cloudy. Seas 1 ft or less.

Thursday

NE wind around 20 kt, with gusts as high as 28 kt. Partly sunny. Seas 1 ft or less.

Thursday Night

NE wind around 20 kt, with gusts as high as 29 kt. Mostly cloudy. Seas 1 ft or less.

*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.