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

77°F

25°C

Humidity 94%
Wind Speed Calm
Barometer 29.94 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 13 Aug 5:55 am EDT
Extended Forecast for

Charleston SC

Extreme Heat Watch August 14, 11:00am until August 14, 08:00pm
Extreme Heat Warning August 13, 11:00am until August 13, 08:00pm
Click here for hazard details and duration
Extreme Heat Watch
Extreme Heat Warning

  • Today

    Today: A 20 percent chance of showers and thunderstorms after 3pm. Sunny, with a high near 96. Heat index values as high as 112. Light west wind becoming southwest 5 to 9 mph in the morning.

    High: 96 °F

    Sunny then
    Slight Chance
    T-storms

  • Tonight

    Tonight: Partly cloudy, with a low around 80. Southwest wind 5 to 8 mph.

    Low: 80 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 97. Heat index values as high as 113. Light west wind becoming southwest 5 to 9 mph in the afternoon.

    High: 97 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 80. Southwest wind 5 to 8 mph.

    Low: 80 °F

    Partly Cloudy

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 97. Light and variable wind becoming southeast 5 to 8 mph in the afternoon.

    High: 97 °F

    Sunny then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 79.

    Low: 79 °F

    Chance
    T-storms then
    Chance
    Showers

  • Sunday

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

    High: 94 °F

    Chance
    T-storms

  • Sunday Night

    Sunday 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

  • Monday

    Monday: Mostly sunny, with a high near 97.

    High: 97 °F

    Mostly Sunny

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms after 3pm. Sunny, with a high near 96. Heat index values as high as 112. Light west wind becoming southwest 5 to 9 mph in the morning.
Tonight
Partly cloudy, with a low around 80. Southwest wind 5 to 8 mph.
Friday
Mostly sunny, with a high near 97. Heat index values as high as 113. Light west wind becoming southwest 5 to 9 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 80. Southwest wind 5 to 8 mph.
Saturday
A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 97. Light and variable wind becoming southeast 5 to 8 mph in the afternoon.
Saturday Night
A 30 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 79.
Sunday
A 30 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 94.
Sunday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 80.
Monday
Mostly sunny, with a high near 97.
Monday Night
Mostly clear, with a low around 81.
Tuesday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 98.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 80.
Wednesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Charleston SC
 32.79°N 80.01°W (Elev. 10 ft)
Last Update:
2:35 am EDT Aug 13, 2026
Forecast Valid:
6am EDT Aug 13, 2026-6pm EDT Aug 19, 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