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

43°F

6°C

Humidity 31%
Wind Speed S 8 G 14 mph
Barometer 30.21 in
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 16 Jan 12:35 pm EST
Extended Forecast for

Sullivans Island SC

  • This Afternoon

    This Afternoon: Sunny, with a high near 50. Southwest wind 7 to 10 mph.

    High: 50 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 43. Southwest wind 7 to 9 mph.

    Low: 43 °F

    Mostly Clear

  • Saturday

    Saturday: Increasing clouds, with a high near 61. Southwest wind 9 to 11 mph.

    High: 61 °F

    Increasing
    Clouds

  • Saturday Night

    Saturday Night: Showers likely, mainly after 1am. Cloudy, with a low around 41. Southwest wind 5 to 7 mph becoming northwest after midnight. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 41 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Sunday

    Sunday: Showers. High near 47. Northwest wind 9 to 13 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 47 °F

    Showers

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 32.

    Low: 32 °F

    Mostly Clear

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 51.

    High: 51 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 33.

    Low: 33 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 46.

    High: 46 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 50. Southwest wind 7 to 10 mph.
Tonight
Mostly clear, with a low around 43. Southwest wind 7 to 9 mph.
Saturday
Increasing clouds, with a high near 61. Southwest wind 9 to 11 mph.
Saturday Night
Showers likely, mainly after 1am. Cloudy, with a low around 41. Southwest wind 5 to 7 mph becoming northwest after midnight. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Showers. High near 47. Northwest wind 9 to 13 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Mostly clear, with a low around 32.
M.L.King Day
Sunny, with a high near 51.
Monday Night
Mostly clear, with a low around 33.
Tuesday
Sunny, with a high near 46.
Tuesday Night
Mostly clear, with a low around 35.
Wednesday
Mostly sunny, with a high near 54.
Wednesday Night
Partly cloudy, with a low around 43.
Thursday
A 20 percent chance of showers. Partly sunny, with a high near 60.
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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:
12:27 pm EST Jan 16, 2026
Forecast Valid:
12pm EST Jan 16, 2026-6pm EST Jan 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