Point Forecast: Johns Island SC
 32.73N 80.07W (Elev. 23 ft)
Last Update: 7:47 am EDT Jul 13, 2025
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  
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  

Date07/1307/14
Hour (EDT)091011121314151617181920212223000102030405060708
Temperature (°F)818386888990908987868583818080807979787878787779
Dewpoint (°F)767777777777777877777676767676767676757576767778
Heat Index (°F)87929710010210310310399979491878686867979787878787779
Surface Wind (mph)233356666553222222112122
Wind DirNWNWNWNWNNSESSSSSSSSSSSWSEEEEEE
Gust
Sky Cover (%)392938323045575654484755474437261814141816203333
Precipitation Potential (%)66911132335343124161512997664444418
Relative Humidity (%)8582757068666670727575808588888891919191949410097
Rain----------SChcChcChcChcSChcSChcSChc----------------------SChc
Thunder----------SChcChcChcChcSChcSChcSChc----------------------SChc

Date07/15
Hour (EDT)091011121314151617181920212223000102030405060708
Temperature (°F)818586878989908988868482818080797979787877787879
Dewpoint (°F)777777777778777776767676757576767676757576767677
Heat Index (°F)8896979910210310310299969389878586797979787877787879
Surface Wind (mph)235677777776532222222233
Wind DirEEEEEESESESESESESESESESESESESESESEEEEE
Gust
Sky Cover (%)333333364359595959595948474440342722202021232663
Precipitation Potential (%)181818181839393939393912121212121211111111111145
Relative Humidity (%)887775726870666868727782828588919191919197949494
RainSChcSChcSChcSChcSChcChcChcChcChcChcChc------------------------Chc
ThunderSChcSChcSChcSChcSChcChcChcChcChcChcChc------------------------Chc

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