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Charleston, SC
 
 
 Point Forecast: Saint Helena Island SC
 32.39N 80.57W (Elev. 20 ft)
Last Update: 7:16 pm EDT May 7, 2021
Tabular Forecast
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Weather ElementsWeather/PrecipitationFire Weather
Temperature (°F)
Dewpoint (°F)
Heat Index (°F)

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

Date05/0705/08
Hour (EDT)222300010203040506070809101112131415161718192021
Temperature (°F)646360595756555453535662667073747677777776747169
Dewpoint (°F)434343434343434444454545444342424344454647495052
Heat Index (°F)7677777776
Surface Wind (mph)987665555556799101010111110988
Wind DirNWNWNWNWNWNWNWNWNWNWNWNWWWWWSWSWSWSWSWSWSWSW
Gust
Sky Cover (%)0000000000000000012346710
Precipitation Potential (%)000000000000000000000000
Relative Humidity (%)464853555962646971746654453833323131323336414755
Rain------------------------------------------------
Thunder------------------------------------------------

Date05/09
Hour (EDT)222300010203040506070809101112131415161718192021
Temperature (°F)686766666565656565656770747779808080807977767473
Dewpoint (°F)535354555656565657585857575656565758596061616263
Heat Index (°F)777980808181797776
Surface Wind (mph)77766666666791113141515151515141414
Wind DirSWSWSWSWSWSWSWSWSWSWSSSSSSSSSSSSSS
Gust2525
Sky Cover (%)5546898778912151821232527293134373938
Precipitation Potential (%)000000000000000000000000
Relative Humidity (%)596165687373737375787363554845444547495258606671
Rain------------------------------------------------
Thunder------------------------------------------------

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