Point Forecast: 20NM W Hyannis MA
 41.58N 70.72W (Elev. 0 ft)
Last Update: 3:11 pm EDT Jul 5, 2025
Tabular Forecast
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Weather ElementsMarine WeatherAviation Weather
Temperature (°F)
Dewpoint (°F)
Heat Index (°F)

Surface Wind  
Sky Cover (%)
Precipitation Potential (%)
Relative Humidity (%)

Rain
Thunder
Fog
Swell Period
Swell Hgt/Dir
Swell 2 Period
Wind Wave Height
Significant Wave Height
Freezing Spray
Ceiling Height
Visibility
Thunder Potential

48-Hour Period Starting:       Back 2 Days  

Date07/0507/06
Hour (EDT)192021222300010203040506070809101112131415161718
Surface Wind (kt)111011111111121212121213131414151516171717171717
Wind DirSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSW
Gust1717171720212223232323
Significant Wave Height (ft) 222222222233333333333333
Swell Height (ft)
Swell Dir
Swell Period (sec) 333333333444444444444444
Swell 2 Height (ft)
Swell 2 Dir
Swell 2 Period (sec) 888888888888888888888888
Wind Wave Height (ft) 222222222222222333333333

Date07/07
Hour (EDT)192021222300010203040506070809101112131415161718
Surface Wind (kt)161515161616151515141414131313141414151515151515
Wind DirSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSSWSSWSSWSSWSSWSSW
Gust192021212120
Significant Wave Height (ft) 333333333332222333333333
Swell Height (ft)
Swell Dir
Swell Period (sec) 444444444444444444444444
Swell 2 Height (ft)
Swell 2 Dir
Swell 2 Period (sec) 888888888888888888888899
Wind Wave Height (ft) 333222222222222222222222

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