Point Forecast: 20NM W Hyannis MA
 41.61N 70.75W (Elev. 0 ft)
Last Update: 6:05 pm EDT Jul 13, 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  

Date07/1307/14
Hour (EDT)192021222300010203040506070809101112131415161718
Surface Wind (kt)87655544333345567781010101010
Wind DirSESSESESESSESSESSESSESSESSESSESSESSESSESSESSESSSWSSWSSWSSWSSWSSWSSW
Gust
Significant Wave Height (ft) 111111111111111111122222
Swell Height (ft)
Swell Dir
Swell Period (sec) 223777777776666661222333
Swell 2 Height (ft)
Swell 2 Dir
Swell 2 Period (sec) 555555665665666666666666
Wind Wave Height (ft) 111111111111111111111111

Date07/15
Hour (EDT)192021222300010203040506070809101112131415161718
Surface Wind (kt)10988888888888889910101111111110
Wind DirSSWSSWSSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSW
Gust
Significant Wave Height (ft) 111111111111111112222222
Swell Height (ft)
Swell Dir
Swell Period (sec) 333333333333333323333333
Swell 2 Height (ft)
Swell 2 Dir
Swell 2 Period (sec) 666666666666666666667777
Wind Wave Height (ft) 111111111111111111111111

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