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12NM NW Hyannis MA

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 2:31 pm EDT Sep 18, 2026
Forecast Valid: 7pm EDT Sep 18, 2026-6pm EDT Sep 25, 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM 11 PM EDT THIS EVENING

Tonight

Variable winds less than 5 kt becoming NNE 8 to 13 kt in the evening. Winds could gust as high as 21 kt. Partly cloudy. Seas 1 ft or less.

Saturday

NNE wind 6 to 11 kt. Mostly sunny. Seas 1 ft or less.

Saturday Night

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

Sunday

SSE wind 5 to 8 kt. Showers likely, mainly after 5pm. Seas 1 ft or less.

Sunday Night

SE wind around 6 kt becoming E after midnight. Showers. Seas 1 ft or less.

Monday

NNE wind 13 to 16 kt, with gusts as high as 25 kt. Showers likely, mainly before 7am. Seas 1 ft or less.

Monday Night

NE wind 11 to 15 kt, with gusts as high as 21 kt. Mostly cloudy. Seas 1 ft or less.

Tuesday

NE wind around 17 kt, with gusts as high as 25 kt. Partly sunny. Seas 1 ft or less.

Tuesday Night

ENE wind 17 to 19 kt, with gusts as high as 26 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.