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.

A Few Clouds

88°F

31°C

Humidity 75%
Wind Speed Vrbl 6 mph
Barometer 30.07 in
Dewpoint 79°F (26°C)
Visibility 10.00 mi
Heat Index103°F (39°C)
Last update 12 Aug 2:55 pm EDT
Extended Forecast for

Charleston SC

  • This Afternoon

    This Afternoon: A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 89. Heat index values as high as 103. South wind around 7 mph.

    High: 89 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 7pm. Mostly cloudy, with a low around 77. South wind around 6 mph.

    Low: 77 °F

    Chance
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms, mainly between 2pm and 4pm. Mostly sunny, with a high near 91. Heat index values as high as 106. Light southwest wind becoming south 5 to 9 mph in the morning.

    High: 91 °F

    Mostly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms after 8pm. Partly cloudy, with a low around 78. South wind 6 to 9 mph.

    Low: 78 °F

    Slight Chance
    T-storms

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 91. Southwest wind 6 to 11 mph.

    High: 91 °F

    Mostly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms, mainly before 2am. Partly cloudy, with a low around 77.

    Low: 77 °F

    Chance
    T-storms

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 91.

    High: 91 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 77.

    Low: 77 °F

    Chance
    T-storms

  • Saturday

    Saturday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 89. Chance of precipitation is 60%.

    High: 89 °F

    Chance
    T-storms then
    Showers
    Likely

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 89. Heat index values as high as 103. South wind around 7 mph.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 7pm. Mostly cloudy, with a low around 77. South wind around 6 mph.
Wednesday
A 30 percent chance of showers and thunderstorms, mainly between 2pm and 4pm. Mostly sunny, with a high near 91. Heat index values as high as 106. Light southwest wind becoming south 5 to 9 mph in the morning.
Wednesday Night
A 20 percent chance of showers and thunderstorms after 8pm. Partly cloudy, with a low around 78. South wind 6 to 9 mph.
Thursday
A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 91. Southwest wind 6 to 11 mph.
Thursday Night
A 30 percent chance of showers and thunderstorms, mainly before 2am. Partly cloudy, with a low around 77.
Friday
A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 91.
Friday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 77.
Saturday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 89. Chance of precipitation is 60%.
Saturday Night
Showers likely and possibly a thunderstorm before 8pm, then a slight chance of showers and thunderstorms after 8pm. Partly cloudy, with a low around 75. Chance of precipitation is 60%.
Sunday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
Sunday Night
A 30 percent chance of showers and thunderstorms. Mostly clear, with a low around 75.
Monday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
Monday Night
Mostly clear, with a low around 75.
Tuesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.
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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:
2:03 pm EDT Aug 12, 2025
Forecast Valid:
3pm EDT Aug 12, 2025-6pm EDT Aug 19, 2025
 
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