Last Update: 1003 PM EDT Sat Jul 25 2026
For More Weather Information:
20NM W Hyannis MA
Marine Zone Forecast
Overnight
NE winds 5 to 10 kt. Seas around 2 ft. Wave detail: E 1 foot at 2 seconds and S 1 foot at 7 seconds.
Sun
NE winds 5 to 10 kt. Seas around 2 ft. Wave detail: NE 1 foot at 2 seconds and S 1 foot at 8 seconds.
Sun Night
NE winds 5 to 10 kt. Seas around 2 ft in the evening, then 1 foot or less. Wave detail: NE 1 foot at 3 seconds and S 1 foot at 7 seconds, becoming NE 1 foot at 2 seconds and SW 1 foot at 7 seconds.
Mon
N winds around 5 kt, becoming SE in the afternoon. Seas 1 foot or less. Wave detail: NE 1 foot at 2 seconds and SW 1 foot at 6 seconds.
Mon Night
S winds 5 to 10 kt. Seas 1 foot or less, then around 2 ft after midnight. Wave detail: SW 1 foot at 3 seconds and E 1 foot at 6 seconds, becoming SE 2 ft at 9 seconds and SW 1 foot at 3 seconds.
Tue
S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave detail: SE 3 ft at 9 seconds and S 2 ft at 3 seconds. A chance of showers in the afternoon.
Tue Night
SE winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Gusts up to 25 kt. Seas 2 to 3 ft. A chance of showers and tstms in the evening, then showers likely after midnight.
Wed
E winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 4 ft. Showers likely.
Wed Night And Thu
NE winds 15 to 20 kt, becoming N 10 to 15 kt. Seas 2 to 3 ft. A chance of showers.
Thu Night
NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft.
winds and seas higher in and near tstms.
seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height.
winds and seas higher in and near tstms.
seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height.
Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height.
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