Point Forecast: 21NM NE Hyannis MA
 41.88N 69.97W (Elev. 49 ft)
Last Update: 3:00 am EDT Jun 17, 2026
Tabular Forecast
[hide menu]Get as XML
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  

Date06/1706/18
Hour (EDT)030405060708091011121314151617181920212223000102
Surface Wind (kt)433333334567676644333333
Wind DirSWSWSWSSWSSWSSWSSWSSWSSSSSESSESSESSESSESSESSESSESSSSS
Gust
Significant Wave Height (ft) 000000000000000000000000
Swell Height (ft)
Swell Dir
Swell Period (sec) 000000000000000000000000
Swell 2 Height (ft)
Swell 2 Dir
Swell 2 Period (sec) 0
Wind Wave Height (ft) 000000000000000000000000

Date06/19
Hour (EDT)030405060708091011121314151617181920212223000102
Surface Wind (kt)3345578101011131314141413131210109887
Wind DirSSSSESSESSESSESSESSESSESSESSESSESSSSSSSWSSWSWSWSWWSWWSW
Gust172022232423232322211917
Significant Wave Height (ft) 000000000000000000000000
Swell Height (ft)
Swell Dir
Swell Period (sec) 000000000000000000000000
Swell 2 Height (ft)
Swell 2 Dir
Swell 2 Period (sec) 000000000000000000000000
Wind Wave Height (ft) 000000000000000000000000

Additional Forecasts and Information
International System of UnitsForecast Discussion
Marine Point ForecastHourly Weather Graph
National Marine ForecastsTide Information
Graphical Hazardous Weather OutlookRegional Weather Conditions
Past Weather InformationInteractive Forecast Map
Weather StoryHome