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12NM NW Hyannis MA

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 2:35 pm EDT Sep 14, 2026
Forecast Valid: 6pm EDT Sep 14, 2026-6pm EDT Sep 21, 2026

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 AM EDT TUESDAY...

Tonight

NNW wind 8 to 10 kt becoming NNE after midnight. Clear. Seas 1 ft or less.

Tuesday

NE wind 6 to 9 kt. Sunny. Seas 1 ft or less.

Tuesday Night

Variable winds 5 kt or less. Mostly clear. Seas 1 ft or less.

Wednesday

Variable winds less than 5 kt becoming SSW 5 to 7 kt in the afternoon. Sunny. Seas 1 ft or less.

Wednesday Night

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

Thursday

Variable winds less than 5 kt becoming SSW 5 to 7 kt in the afternoon. Mostly sunny. Seas 1 ft or less.

Thursday Night

SW wind around 7 kt. A chance of showers after 11pm. Seas 1 ft or less.

Friday

WNW wind 7 to 9 kt becoming NNE in the afternoon. A chance of showers. Seas 1 ft or less.

Friday Night

Variable winds less than 5 kt becoming N 5 to 8 kt after midnight. Partly 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.