National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Charleston Executive Airport (KJZI)

Lat: 32.7°NLon: 80°WElev: 16ft.

Fair

84°F

29°C

Humidity 94%
Wind Speed Calm
Barometer 29.89 in
Dewpoint 82°F (28°C)
Visibility 9.00 mi
Heat Index100°F (38°C)
Last update 19 Aug 2:15 am EDT
Extended Forecast for

4 Miles NNW Folly Beach SC

Heat Advisory August 19, 11:00am until August 19, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Overnight

    Overnight: Mostly clear, with a low around 80. Calm wind.

    Low: 80 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 95. Heat index values as high as 112. Calm wind becoming south 5 to 9 mph in the afternoon.

    High: 95 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 80. South wind around 5 mph becoming calm in the evening.

    Low: 80 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 93. Heat index values as high as 111. Light and variable wind becoming south 5 to 10 mph in the afternoon.

    High: 93 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 80. South wind 6 to 8 mph.

    Low: 80 °F

    Mostly Clear

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 93.

    High: 93 °F

    Sunny then
    Chance
    T-storms

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms, mainly before 2am. Partly cloudy, with a low around 78.

    Low: 78 °F

    Chance
    T-storms

  • Saturday

    Saturday: A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 91. Chance of precipitation is 60%.

    High: 91 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 77. Chance of precipitation is 60%.

    Low: 77 °F

    Showers
    Likely

Detailed Forecast

Overnight
Mostly clear, with a low around 80. Calm wind.
Wednesday
Sunny, with a high near 95. Heat index values as high as 112. Calm wind becoming south 5 to 9 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 80. South wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 93. Heat index values as high as 111. Light and variable wind becoming south 5 to 10 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 80. South wind 6 to 8 mph.
Friday
A 30 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 93.
Friday Night
A 40 percent chance of showers and thunderstorms, mainly before 2am. Partly cloudy, with a low around 78.
Saturday
A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 91. Chance of precipitation is 60%.
Saturday Night
Showers likely and possibly a thunderstorm before 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 77. Chance of precipitation is 60%.
Sunday
A 30 percent chance of showers and thunderstorms, mainly before 8am. Mostly sunny, with a high near 91.
Sunday Night
Partly cloudy, with a low around 78.
Monday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 91.
Monday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 78.
Tuesday
A 30 percent chance of showers and thunderstorms. Sunny, with a high near 91.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNW Folly Beach SC
 32.72°N 79.96°W (Elev. 13 ft)
Last Update:
2:27 am EDT Aug 19, 2026
Forecast Valid:
2am EDT Aug 19, 2026-6pm EDT Aug 25, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation