National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Charleston Executive Airport (KJZI)

Lat: 32.7°NLon: 80°WElev: 16ft.

Fair

73°F

23°C

Humidity 65%
Wind Speed S 7 mph
Barometer 30.24 in
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 31 Mar 5:55 pm EDT
Extended Forecast for

Sullivans Island SC

  • Tonight

    Tonight: Partly cloudy, with a low around 61. South wind 6 to 8 mph.

    Low: 61 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 72. Calm wind becoming south 5 to 8 mph in the afternoon.

    High: 72 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 62. Southeast wind around 6 mph.

    Low: 62 °F

    Partly Cloudy

  • Thursday

    Thursday: A slight chance of showers, with thunderstorms also possible after 2pm. Mostly sunny, with a high near 72. Light east wind increasing to 5 to 10 mph in the morning. Chance of precipitation is 20%.

    High: 72 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 63. Southeast wind around 7 mph.

    Low: 63 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 63.

    Low: 63 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 63.

    Low: 63 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 61. South wind 6 to 8 mph.
Wednesday
Mostly sunny, with a high near 72. Calm wind becoming south 5 to 8 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 62. Southeast wind around 6 mph.
Thursday
A slight chance of showers, with thunderstorms also possible after 2pm. Mostly sunny, with a high near 72. Light east wind increasing to 5 to 10 mph in the morning. Chance of precipitation is 20%.
Thursday Night
Partly cloudy, with a low around 63. Southeast wind around 7 mph.
Friday
Mostly sunny, with a high near 73.
Friday Night
Partly cloudy, with a low around 63.
Saturday
Mostly sunny, with a high near 73.
Saturday Night
Partly cloudy, with a low around 63.
Sunday
A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 74. Chance of precipitation is 40%.
Sunday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 56.
Monday
A 40 percent chance of showers. Mostly cloudy, with a high near 64.
Monday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 53.
Tuesday
A 30 percent chance of showers. Mostly cloudy, with a high near 65.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sullivans Island SC
 32.76°N 79.85°W (Elev. 0 ft)
Last Update:
2:35 pm EDT Mar 31, 2026
Forecast Valid:
6pm EDT Mar 31, 2026-6pm EDT Apr 7, 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