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

86°F

30°C

Humidity 79%
Wind Speed Calm
Barometer 30.10 in
Dewpoint 79°F (26°C)
Visibility 10.00 mi
Heat Index99°F (37°C)
Last update 16 Aug 9:15 am EDT
Extended Forecast for

4 Miles S Charleston SC

Heat Advisory August 16, 11:00am until August 16, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Today

    Today: A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 93. Heat index values as high as 109. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 93 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 79. South wind 3 to 5 mph.

    Low: 79 °F

    Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 96. Heat index values as high as 114. Light west wind becoming southwest 5 to 9 mph in the morning.

    High: 96 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 81. Southwest wind 6 to 9 mph.

    Low: 81 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 98. West wind 5 to 7 mph becoming southwest in the afternoon.

    High: 98 °F

    Sunny then
    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms, mainly between 8pm and 2am. Partly cloudy, with a low around 80.

    Low: 80 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 94.

    High: 94 °F

    Sunny then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 80.

    Low: 80 °F

    Chance
    T-storms then
    Partly Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 94.

    High: 94 °F

    Sunny then
    Slight Chance
    T-storms

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 93. Heat index values as high as 109. Calm wind becoming south 5 to 7 mph in the afternoon.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 79. South wind 3 to 5 mph.
Monday
Sunny, with a high near 96. Heat index values as high as 114. Light west wind becoming southwest 5 to 9 mph in the morning.
Monday Night
Mostly clear, with a low around 81. Southwest wind 6 to 9 mph.
Tuesday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 98. West wind 5 to 7 mph becoming southwest in the afternoon.
Tuesday Night
A 30 percent chance of showers and thunderstorms, mainly between 8pm and 2am. Partly cloudy, with a low around 80.
Wednesday
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 94.
Wednesday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 80.
Thursday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 94.
Thursday Night
Partly cloudy, with a low around 79.
Friday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.
Friday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 78.
Saturday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Charleston SC
 32.72°N 79.99°W (Elev. 3 ft)
Last Update:
8:32 am EDT Aug 16, 2026
Forecast Valid:
9am EDT Aug 16, 2026-6pm EDT Aug 22, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation