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

91°F

33°C

Humidity 59%
Wind Speed Calm
Barometer 29.95 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index102°F (39°C)
Last update 19 Aug 11:55 am EDT
Extended Forecast for

3 Miles SSE Charleston SC

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

    NOW until 8:00pm Wed

    Heat Advisory

  • This Afternoon

    High: 96 °F

    Sunny

  • Tonight

    Tonight: 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 94. Heat index values as high as 111. Light and variable wind becoming south 5 to 10 mph in the afternoon.

    High: 94 °F

    Sunny

  • Thursday Night

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

    Low: 80 °F

    Partly Cloudy

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 93. Light southwest wind becoming south 6 to 11 mph in the morning.

    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: Showers and thunderstorms likely, mainly after 2pm. Mostly sunny, with a high near 91. Chance of precipitation is 60%.

    High: 91 °F

    Slight Chance
    T-storms then
    T-storms
    Likely

  • Saturday Night

    Saturday Night: Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 77. Chance of precipitation is 60%.

    Low: 77 °F

    T-storms
    Likely

Detailed Forecast

This Afternoon
Sunny, with a high near 96. Heat index values as high as 112. Light southeast wind becoming south 5 to 9 mph.
Tonight
Mostly clear, with a low around 80. South wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 94. Heat index values as high as 111. Light and variable wind becoming south 5 to 10 mph in the afternoon.
Thursday Night
Partly cloudy, 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. Light southwest wind becoming south 6 to 11 mph in the morning.
Friday Night
A 40 percent chance of showers and thunderstorms, mainly before 2am. Partly cloudy, with a low around 78.
Saturday
Showers and thunderstorms likely, mainly after 2pm. Mostly sunny, with a high near 91. Chance of precipitation is 60%.
Saturday Night
Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 77. Chance of precipitation is 60%.
Sunday
A 20 percent chance of showers and thunderstorms. 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 92.
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:
3 Miles SSE Charleston SC
 32.74°N 79.96°W (Elev. 3 ft)
Last Update:
8:32 am EDT Aug 19, 2026
Forecast Valid:
12pm 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