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Charleston, SC
 
 
 Point Forecast: Saint Helena Island SC
 32.39N 80.57W (Elev. 20 ft)
Last Update: 3:28 am EDT Apr 19, 2024
Tabular Forecast
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Weather ElementsWeather/PrecipitationFire Weather
Temperature (°F)
Dewpoint (°F)
Wind Chill (°F)

Surface Wind  
Sky Cover (%)
Precipitation Potential (%)
Relative Humidity (%)
Rain
Thunder
Snow
Freezing Rain
Sleet
Fog
Mixing Height  
Haines Index
Lightning Activity Level
Trans. Wind  
20ft Wind  
Vent Rate (x1000 mph-ft)
Dispersion Index
Davis Stability Index
Atmospheric Dispersion Index
Low Visibility Occurrence Risk Index
Turner Stability Index

48-Hour Period Starting:       Back 2 Days  

Date04/1904/20
Hour (EDT)030405060708091011121314151617181920212223000102
Temperature (°F)706968676769717578818384848381797674727271707070
Dewpoint (°F)646565646363656666676767676768686867676767676767
Wind Chill (°F)
Surface Wind (mph)66666666678910111110109998887
Wind DirSWSWSWSWSWSWSWWWSWSWSWSSSSSSSSSSSWSW
Gust
Sky Cover (%)253543495251433224252933333332333536383939393937
Precipitation Potential (%)0001233467101315161514118899887
Relative Humidity (%)818790908781817467635957575965697679848487909090
Rain------------------------SChcSChcSChc------------------
Thunder------------------------SChcSChcSChc------------------
Snow------------------------------------------------
Freezing Rain------------------------------------------------
Sleet------------------------------------------------

Date04/21
Hour (EDT)030405060708091011121314151617181920212223000102
Temperature (°F)696868686869727780838485858482807775737271706968
Dewpoint (°F)676767676666676868686868686969696969686868686867
Wind Chill (°F)
Surface Wind (mph)777777677889999876666665
Wind DirSWSWSWWWWWWWWWSWSWSWSWSWSSSWWWWWW
Gust
Sky Cover (%)3329252322211488152636404245515864666767686868
Precipitation Potential (%)7765434566817212831323435353535353520
Relative Humidity (%)939797979390847467615957576165697682848790939797
Rain----------------------SChcSChcChcChcChcChcChcChcChcChcChcChcSChc
Thunder----------------------SChcSChcChcChcChcChcChcChcChcChcChcChcSChc
Snow------------------------------------------------
Freezing Rain------------------------------------------------
Sleet------------------------------------------------

Additional Forecasts and Information
International System of UnitsForecast Discussion
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