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.

A Few Clouds

79°F

26°C

Humidity 61%
Wind Speed SE 12 mph
Barometer 30.35 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 3 Apr 12:35 pm EDT
Extended Forecast for

Sullivans Island SC

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 73. Southeast wind 7 to 9 mph.

    High: 73 °F

    Mostly Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 64. Southeast wind around 6 mph.

    Low: 64 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Mostly sunny, with a high near 74. Calm wind becoming south 5 to 9 mph in the morning.

    High: 74 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 65. South wind around 8 mph.

    Low: 65 °F

    Partly Cloudy

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 74. South wind 8 to 14 mph, with gusts as high as 21 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 74 °F

    Mostly Sunny
    then Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers after 2am. Cloudy, with a low around 59. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 59 °F

    Showers
    Likely

  • Monday

    Monday: A 30 percent chance of showers before 8am. Mostly cloudy, with a high near 68.

    High: 68 °F

    Chance
    Showers then
    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 56.

    Low: 56 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 67.

    High: 67 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 73. Southeast wind 7 to 9 mph.
Tonight
Increasing clouds, with a low around 64. Southeast wind around 6 mph.
Saturday
Mostly sunny, with a high near 74. Calm wind becoming south 5 to 9 mph in the morning.
Saturday Night
Partly cloudy, with a low around 65. South wind around 8 mph.
Sunday
A 50 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 74. South wind 8 to 14 mph, with gusts as high as 21 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers after 2am. Cloudy, with a low around 59. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
A 30 percent chance of showers before 8am. Mostly cloudy, with a high near 68.
Monday Night
Mostly cloudy, with a low around 56.
Tuesday
Mostly cloudy, with a high near 67.
Tuesday Night
Partly cloudy, with a low around 52.
Wednesday
Mostly sunny, with a high near 63. Breezy.
Wednesday Night
Partly cloudy, with a low around 55.
Thursday
A 20 percent chance of showers. Partly sunny, with a high near 68.
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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:
8:32 am EDT Apr 3, 2026
Forecast Valid:
12pm EDT Apr 3, 2026-6pm EDT Apr 9, 2026
 
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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