Point Forecast: 21NM NE Hyannis MA
 41.88N 69.97W (Elev. 49 ft)
Last Update: 6:19 am EDT Aug 16, 2026
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  

Date08/1608/17
Hour (EDT)091011121314151617181920212223000102030405060708
Surface Wind (mph)345678899999888899999101213
Wind DirESSESSSSSSSSSSSSSSSSSSSWSWSSWSS
Gust
Significant Wave Height (ft) 000000000000000000000000
Wave Direction (°)
Swell Height (ft)
Swell Dir
Swell Period (sec) 000000000000000000000000
Swell 2 Period (sec) 000000000000000000000000
Wind Wave Height (ft) 000000000000000000000000

Date08/18
Hour (EDT)091011121314151617181920212223000102030405060708
Surface Wind (mph)13141415151616161613118666666677788
Wind DirSSSESSESSESSESESESESESESESEEENENENENNENNNNNNN
Gust2223232221
Significant Wave Height (ft) 000000000000000000000000
Wave Direction (°)
Swell Height (ft)
Swell Dir
Swell Period (sec) 000000000000000000000000
Swell 2 Period (sec) 000000000000000000000000
Wind Wave Height (ft) 000000000000000000000000

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