Current conditions at

Charleston Executive Airport (KJZI)

Lat: 32.7°NLon: 80°WElev: 16ft.

Fair

88°F

31°C

Humidity 70%
Wind Speed Vrbl 6 mph
Barometer 30.05 in
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index100°F (38°C)
Last update 21 Aug 10:55 am EDT
Extended Forecast for

Kiawah Island SC

Heat Advisory until August 21, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory until August 21, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • Today

    High: 92 °F

    Sunny

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly after 9pm.  Partly cloudy, with a low around 78. South wind 9 to 13 mph, with gusts as high as 20 mph.

    Low: 78 °F

    Chance
    T-storms

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms.  Partly sunny, with a high near 89. Heat index values as high as 102. Southwest wind 7 to 14 mph.

    High: 89 °F

    Chance
    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: Showers and thunderstorms likely, mainly before 8pm.  Mostly cloudy, then gradually becoming mostly clear, with a low around 78. Southwest wind 9 to 13 mph, with gusts as high as 20 mph.  Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 78 °F

    Showers
    Likely then
    Chance
    T-storms

  • Sunday

    Sunday: Sunny, with a high near 91. West wind 7 to 13 mph.

    High: 91 °F

    Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms before 2am.  Mostly clear, with a low around 77.

    Low: 77 °F

    Slight Chance
    T-storms

  • Monday

    Monday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms after 2am.  Partly cloudy, with a low around 78.

    Low: 78 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 92. Heat index values as high as 108. South wind 8 to 14 mph.
Tonight
A 40 percent chance of showers and thunderstorms, mainly after 9pm. Partly cloudy, with a low around 78. South wind 9 to 13 mph, with gusts as high as 20 mph.
Saturday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 89. Heat index values as high as 102. Southwest wind 7 to 14 mph.
Saturday Night
Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 78. Southwest wind 9 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
Sunny, with a high near 91. West wind 7 to 13 mph.
Sunday Night
A 20 percent chance of showers and thunderstorms before 2am. Mostly clear, with a low around 77.
Monday
Sunny, with a high near 90.
Monday Night
A 20 percent chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 78.
Tuesday
A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 88.
Tuesday Night
A 30 percent chance of showers and thunderstorms, mainly after 2am. Partly cloudy, with a low around 78.
Wednesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.
Wednesday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 78.
Thursday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.
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ABOUT THIS FORECAST

 
Point Forecast:
Kiawah Island SC
 32.62°N 80.06°W (Elev. 10 ft)
8:32 am EDT Aug 21, 2026
11am EDT Aug 21, 2026-6pm EDT Aug 27, 2026
 
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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