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.

Mostly Cloudy

32°F

0°C

Humidity 93%
Wind Speed NW 3 mph
Barometer 30.27 in
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 13 Jan 7:15 am EST
Extended Forecast for

Sullivans Island SC

  • Today

    Today: Sunny, with a high near 57. Light and variable wind becoming south around 6 mph in the afternoon.

    High: 57 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 46. West wind around 6 mph.

    Low: 46 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 50 percent chance of rain. Mostly cloudy, with a high near 57. West wind 7 to 10 mph. New precipitation amounts of less than a tenth of an inch possible.

    High: 57 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 42. Southwest wind around 10 mph.

    Low: 42 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Thursday

    Thursday: Partly sunny, with a high near 50. Northwest wind 10 to 14 mph.

    High: 50 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 29.

    Low: 29 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 49.

    High: 49 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 57. Light and variable wind becoming south around 6 mph in the afternoon.
Tonight
Partly cloudy, with a low around 46. West wind around 6 mph.
Wednesday
A 50 percent chance of rain. Mostly cloudy, with a high near 57. West wind 7 to 10 mph. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 42. Southwest wind around 10 mph.
Thursday
Partly sunny, with a high near 50. Northwest wind 10 to 14 mph.
Thursday Night
Mostly clear, with a low around 29.
Friday
Sunny, with a high near 49.
Friday Night
Mostly clear, with a low around 41.
Saturday
Sunny, with a high near 56.
Saturday Night
Mostly clear, with a low around 37.
Sunday
Sunny, with a high near 51.
Sunday Night
Mostly clear, with a low around 31.
M.L.King Day
Sunny, with a high near 48.
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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:
1:46 am EST Jan 13, 2026
Forecast Valid:
7am EST Jan 13, 2026-6pm EST Jan 19, 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