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

68°F

20°C

Humidity 73%
Wind Speed SW 8 mph
Barometer 29.92 in
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 22 Mar 8:15 pm EDT
Extended Forecast for

Sullivans Island SC

  • Tonight

    Tonight: Mostly clear, with a low around 62. Southwest wind around 11 mph, with gusts as high as 20 mph.

    Low: 62 °F

    Mostly Clear

  • Monday

    Monday: Increasing clouds, with a high near 76. Southwest wind 11 to 13 mph, with gusts as high as 21 mph.

    High: 76 °F

    Increasing
    Clouds

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Mostly cloudy, with a low around 54. Northeast wind 7 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.

    Low: 54 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 59. Breezy, with a northeast wind 18 to 20 mph, with gusts as high as 31 mph.

    High: 59 °F

    Mostly Cloudy
    and Breezy

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers after 2am. Cloudy, with a low around 53. Northeast wind 9 to 14 mph, with gusts as high as 22 mph.

    Low: 53 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: A 30 percent chance of showers, mainly before 8am. Mostly cloudy, with a high near 63.

    High: 63 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 70.

    High: 70 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 62. Southwest wind around 11 mph, with gusts as high as 20 mph.
Monday
Increasing clouds, with a high near 76. Southwest wind 11 to 13 mph, with gusts as high as 21 mph.
Monday Night
A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Mostly cloudy, with a low around 54. Northeast wind 7 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.
Tuesday
Mostly cloudy, with a high near 59. Breezy, with a northeast wind 18 to 20 mph, with gusts as high as 31 mph.
Tuesday Night
A 30 percent chance of showers after 2am. Cloudy, with a low around 53. Northeast wind 9 to 14 mph, with gusts as high as 22 mph.
Wednesday
A 30 percent chance of showers, mainly before 8am. Mostly cloudy, with a high near 63.
Wednesday Night
Partly cloudy, with a low around 55.
Thursday
Sunny, with a high near 70.
Thursday Night
Mostly clear, with a low around 60.
Friday
Sunny, with a high near 74.
Friday Night
A 20 percent chance of showers. Partly cloudy, with a low around 53.
Saturday
Partly sunny, with a high near 62. Breezy.
Saturday Night
Partly cloudy, with a low around 49.
Sunday
Mostly sunny, with a high near 62.
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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:
8:30 pm EDT Mar 22, 2026
Forecast Valid:
8pm EDT Mar 22, 2026-6pm EDT Mar 29, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation