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Hazardous Weather Conditions

Current conditions at

Charleston Executive Airport (KJZI)

Lat: 32.7°NLon: 80°WElev: 16ft.

Fair

81°F

27°C

Humidity 89%
Wind Speed Calm
Barometer 30.10 in
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index88°F (31°C)
Last update 15 Aug 1:15 am EDT
Extended Forecast for

Charleston SC

Extreme Heat Warning August 15, 11:00am until August 15, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning

  • Overnight

    Overnight: Mostly clear, with a low around 79. Southwest wind around 5 mph.

    Low: 79 °F

    Mostly Clear

  • Saturday

    Saturday: A slight chance of showers and thunderstorms before 4pm, then a slight chance of showers and thunderstorms after 5pm. Sunny, with a high near 96. Heat index values as high as 113. South wind 3 to 8 mph. Chance of precipitation is 20%.

    High: 96 °F

    Sunny then
    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 79. Southwest wind 3 to 7 mph.

    Low: 79 °F

    Partly Cloudy

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 95. Heat index values as high as 114. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 95 °F

    Mostly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 80. South wind 3 to 6 mph.

    Low: 80 °F

    Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 98.

    High: 98 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 80.

    Low: 80 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 99.

    High: 99 °F

    Sunny then
    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 80.

    Low: 80 °F

    Slight Chance
    T-storms

Detailed Forecast

Overnight
Mostly clear, with a low around 79. Southwest wind around 5 mph.
Saturday
A slight chance of showers and thunderstorms before 4pm, then a slight chance of showers and thunderstorms after 5pm. Sunny, with a high near 96. Heat index values as high as 113. South wind 3 to 8 mph. Chance of precipitation is 20%.
Saturday Night
Partly cloudy, with a low around 79. Southwest wind 3 to 7 mph.
Sunday
A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 95. Heat index values as high as 114. Calm wind becoming south 5 to 7 mph in the afternoon.
Sunday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 80. South wind 3 to 6 mph.
Monday
Sunny, with a high near 98.
Monday Night
Mostly clear, with a low around 80.
Tuesday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 99.
Tuesday Night
A 20 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 80.
Wednesday
A 30 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 96.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 80.
Thursday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 96.
Thursday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 79.
Friday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Charleston SC
 32.81°N 79.98°W (Elev. 3 ft)
Last Update:
8:33 pm EDT Aug 14, 2026
Forecast Valid:
1am EDT Aug 15, 2026-6pm EDT Aug 21, 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