Point Forecast: 7 Miles E Saint Helena Island SC
 32.38N 80.44W (Elev. 10 ft)
Last Update: 8:32 am EDT Sep 8, 2026
Tabular Forecast
[hide menu]Get as XML
Weather ElementsWeather/PrecipitationFire Weather
Temperature (°F)
Dewpoint (°F)
Heat Index (°F)

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

Date09/0809/09
Hour (EDT)121314151617181920212223000102030405060708091011
Temperature (°F)848485848584848381818080808080807979797880818284
Dewpoint (°F)737373737373737373737374747474747474747475757574
Heat Index (°F)909092909290908986868484848484847979797885878991
Surface Wind (mph)202120212020201816151514131311111111111313131415
Wind DirENEENEEEEEEEEEEEEEEEEEEEEE
Gust293030313130303028262524242322212121212121222223
Sky Cover (%)525249524339515652395745516678432834334649404147
Precipitation Potential (%)292327201919182234383936353937404440404436345251
Relative Humidity (%)707067706770707277777982828282828585858885827972
RainChcSChcChcSChcSChcSChcSChcSChcChcChcChcChcChcChcChcChcChcChcChcChcChcChcChcChc
Thunder----SChcSChcSChcSChcSChcSChcChcChcChcSChcSChcSChcSChcSChcSChc------SChcSChcSChcSChc

Date09/10
Hour (EDT)121314151617181920212223000102030405060708091011
Temperature (°F)848484848584848381818180808080807979797980818384
Dewpoint (°F)747474747374737373747575757575757575757676767575
Heat Index (°F)919191919291908986868785858585857979797986879092
Surface Wind (mph)151514151414131110987665533222356
Wind DirEEEEEEEEEEEESESESESESESESESESESSS
Gust232323232323222220
Sky Cover (%)606552625761535155423324262729262421222324252728
Precipitation Potential (%)525644524534252024242424242413131313131337373737
Relative Humidity (%)727272726772707277798285858585858888889188857774
RainChcLklyChcChcChcChcChcSChcSChcSChcSChcSChcSChcSChc------------ChcChcChcChc
ThunderSChcSChcChcChcChcSChcSChcSChc--------------------------------

Additional Forecasts and Information
International System of UnitsForecast Discussion
7-Day ForecastHourly Weather Graph
Public Information StatementCoastal Waters Forecast
Offshore Waters ForecastBeach Forecast
Lake Moultrie ForecastNorth Charleston Daily Climate
Downtown Charleston Daily ClimateSavannah Daily Climate
Past Weather InformationWeather Briefing