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

46°F

8°C

Humidity 76%
Wind Speed N 3 mph
Barometer 30.10 in
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 12 Feb 5:35 am EST
Extended Forecast for

Sullivans Island SC

  • Today

    Today: Sunny, with a high near 55. North wind 6 to 10 mph becoming east in the afternoon.

    High: 55 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 41. Calm wind becoming north around 6 mph after midnight.

    Low: 41 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 53. Northeast wind 8 to 10 mph.

    High: 53 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 44. Northeast wind around 5 mph.

    Low: 44 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 58. East wind around 7 mph.

    High: 58 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 52.

    Low: 52 °F

    Mostly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm, then showers after 1pm. High near 63. Chance of precipitation is 90%.

    High: 63 °F

    Showers

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm before 1am, then showers likely. Low around 53. Chance of precipitation is 90%.

    Low: 53 °F

    Showers

  • Washington's Birthday

    Washington's Birthday: A 50 percent chance of showers. Mostly cloudy, with a high near 62.

    High: 62 °F

    Chance
    Showers

Detailed Forecast

Today
Sunny, with a high near 55. North wind 6 to 10 mph becoming east in the afternoon.
Tonight
Mostly clear, with a low around 41. Calm wind becoming north around 6 mph after midnight.
Friday
Sunny, with a high near 53. Northeast wind 8 to 10 mph.
Friday Night
Mostly clear, with a low around 44. Northeast wind around 5 mph.
Saturday
Mostly sunny, with a high near 58. East wind around 7 mph.
Saturday Night
A 40 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 52.
Sunday
Showers likely and possibly a thunderstorm, then showers after 1pm. High near 63. Chance of precipitation is 90%.
Sunday Night
Showers and possibly a thunderstorm before 1am, then showers likely. Low around 53. Chance of precipitation is 90%.
Washington's Birthday
A 50 percent chance of showers. Mostly cloudy, with a high near 62.
Monday Night
A 20 percent chance of showers before 1am. Partly cloudy, with a low around 47.
Tuesday
Mostly sunny, with a high near 60.
Tuesday Night
Mostly cloudy, with a low around 51.
Wednesday
Partly sunny, 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:
6:15 am EST Feb 12, 2026
Forecast Valid:
6am EST Feb 12, 2026-6pm EST Feb 18, 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