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.

Partly Cloudy

79°F

26°C

Humidity 100%
Wind Speed Calm
Barometer 29.93 in
Dewpoint 79°F (26°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 5 Sep 2:35 am EDT
Extended Forecast for

4 Miles SSE Charleston SC

Heat Advisory September 5, 11:00am until September 5, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Overnight

    Overnight: Mostly clear, with a low around 77. Light southwest wind.

    Low: 77 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 91. Heat index values as high as 108. Light and variable wind becoming south 5 to 10 mph in the afternoon.

    High: 91 °F

    Sunny

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms between 2am and 4am, then a slight chance of thunderstorms after 4am. Mostly clear, with a low around 77. Southwest wind 5 to 9 mph. Chance of precipitation is 20%.

    Low: 77 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Sunday

    Sunday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 5pm. Some of the storms could produce heavy rainfall. High near 91. Heat index values as high as 106. Light and variable wind becoming southeast 5 to 7 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 91 °F

    Slight Chance
    T-storms then
    Heavy Rain

  • Sunday Night

    Sunday Night: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 8pm. Some of the storms could produce heavy rainfall. Low around 74. East wind 5 to 7 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

    Low: 74 °F

    Heavy Rain
    then Showers

  • Labor Day

    Labor Day: Showers and possibly a thunderstorm. High near 84. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 84 °F

    Showers

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms after 8pm. Low around 74. Chance of precipitation is 80%.

    Low: 74 °F

    Showers then
    Chance
    T-storms

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 84. Breezy.

    High: 84 °F

    Chance
    T-storms and
    Breezy

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74.

    Low: 74 °F

    Chance
    T-storms

Detailed Forecast

Overnight
Mostly clear, with a low around 77. Light southwest wind.
Saturday
Sunny, with a high near 91. Heat index values as high as 108. Light and variable wind becoming south 5 to 10 mph in the afternoon.
Saturday Night
A slight chance of showers and thunderstorms between 2am and 4am, then a slight chance of thunderstorms after 4am. Mostly clear, with a low around 77. Southwest wind 5 to 9 mph. Chance of precipitation is 20%.
Sunday
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 5pm. Some of the storms could produce heavy rainfall. High near 91. Heat index values as high as 106. Light and variable wind becoming southeast 5 to 7 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday Night
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 8pm. Some of the storms could produce heavy rainfall. Low around 74. East wind 5 to 7 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Labor Day
Showers and possibly a thunderstorm. High near 84. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Monday Night
Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms after 8pm. Low around 74. Chance of precipitation is 80%.
Tuesday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 84. Breezy.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74.
Wednesday
A 40 percent chance of showers and thunderstorms, mainly before 2pm. Mostly sunny, with a high near 85.
Wednesday Night
Partly cloudy, with a low around 74.
Thursday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 87.
Thursday Night
Partly cloudy, with a low around 75.
Friday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 89.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSE Charleston SC
 32.72°N 79.96°W (Elev. 13 ft)
Last Update:
2:45 am EDT Sep 5, 2026
Forecast Valid:
3am EDT Sep 5, 2026-6pm EDT Sep 11, 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