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

81°F

27°C

Humidity 94%
Wind Speed Calm
Barometer 30.09 in
Dewpoint 79°F (26°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 16 Aug 7:35 am EDT
Extended Forecast for

Seabrook Island SC

Heat Advisory August 16, 11:00am until August 16, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Today

    Today: A 30 percent chance of showers and thunderstorms, mainly between 4pm and 5pm. Mostly sunny, with a high near 92. Heat index values as high as 109. Light and variable wind becoming south 5 to 8 mph in the afternoon.

    High: 92 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tonight

    Tonight: Partly cloudy, with a low around 80. Southwest wind around 7 mph.

    Low: 80 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 95. Heat index values as high as 114. Southwest wind 6 to 11 mph.

    High: 95 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 82. Southwest wind 8 to 11 mph, with gusts as high as 20 mph.

    Low: 82 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 96. West wind 6 to 9 mph becoming southwest in the afternoon.

    High: 96 °F

    Sunny

  • 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

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 93.

    High: 93 °F

    Sunny then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 81.

    Low: 81 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 91.

    High: 91 °F

    Sunny

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms, mainly between 4pm and 5pm. Mostly sunny, with a high near 92. Heat index values as high as 109. Light and variable wind becoming south 5 to 8 mph in the afternoon.
Tonight
Partly cloudy, with a low around 80. Southwest wind around 7 mph.
Monday
Sunny, with a high near 95. Heat index values as high as 114. Southwest wind 6 to 11 mph.
Monday Night
Mostly clear, with a low around 82. Southwest wind 8 to 11 mph, with gusts as high as 20 mph.
Tuesday
Sunny, with a high near 96. West wind 6 to 9 mph becoming southwest in the afternoon.
Tuesday Night
A 20 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 80.
Wednesday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 93.
Wednesday Night
Partly cloudy, with a low around 81.
Thursday
Sunny, with a high near 91.
Thursday Night
Partly cloudy, with a low around 81.
Friday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.
Friday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 79.
Saturday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Seabrook Island SC
 32.58°N 80.17°W (Elev. 10 ft)
Last Update:
2:40 am EDT Aug 16, 2026
Forecast Valid:
7am EDT Aug 16, 2026-6pm EDT Aug 22, 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