Point Forecast: 18NM NNE Portsmouth NH
 43.31N 70.57W (Elev. 3 m)
Last Update: 2:28 am EST Mar 8, 2026
Tabular Forecast
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Weather ElementsMarine WeatherAviation Weather
Temperature (°C)
Dewpoint (°C)
Wind Chill (°C)

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

Rain
Thunder
Snow
Freezing Rain
Sleet
Freezing Spray
Fog
Wave Period (s)
Significant Wave Height
Freezing Spray
Ceiling Height
Visibility

48-Hour Period Starting:       Back 2 Days  

Date03/0803/09
Hour (EST)020304050607080910111213141516171819202122230001
Surface Wind (km/h)141111131111131313141414141311101010101010101010
Wind DirSWSWSSWSSWSWSSWSWSWWSWWSWWWWWWWWSWWSWWSWWSWWSWWSWSWSW
Gust
Significant Wave Height (m) 000000000000000000000000
Wave Period (sec) 99999999999899810101010101010109
Wave Direction (°)

Date03/10
Hour (EST)020304050607080910111213141516171819202122230001
Surface Wind (km/h)1010101010101010101314161614141313111110101088
Wind DirSWSWSWSWSWSWSWSWSSWSSWSSWSSWSSWSSWSSWSSWSWSWSWSWSWSWSWSW
Gust
Significant Wave Height (m) 000000000000000000000000
Wave Period (sec) 9999101010109999999999999999
Wave Direction (°)

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