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.

61°F

16°C

Humidity 100%
Wind Speed Calm
Barometer 30.26 in
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 4 Apr 6:15 am EDT
Extended Forecast for

Sullivans Island SC

  • Today

    Today: Patchy fog before 9am. Otherwise, mostly sunny, with a high near 74. Light southeast wind becoming south 5 to 10 mph in the morning.

    High: 74 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 65. South wind around 7 mph.

    Low: 65 °F

    Partly Cloudy

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 74. Southwest wind 8 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 74 °F

    Mostly Sunny
    then Showers
    Likely

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm. Low around 58. Southwest wind 6 to 9 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 58 °F

    Showers

  • Monday

    Monday: A 30 percent chance of showers before 8am. Mostly cloudy, with a high near 67. North wind 11 to 14 mph, with gusts as high as 23 mph.

    High: 67 °F

    Chance
    Showers then
    Partly Sunny

  • Monday Night

    Monday Night: Cloudy, with a low around 57.

    Low: 57 °F

    Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 67.

    High: 67 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 54.

    Low: 54 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 64. Breezy.

    High: 64 °F

    Partly Sunny
    and Breezy

Detailed Forecast

Today
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 74. Light southeast wind becoming south 5 to 10 mph in the morning.
Tonight
Partly cloudy, with a low around 65. South wind around 7 mph.
Sunday
Showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 74. Southwest wind 8 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Showers and possibly a thunderstorm. Low around 58. Southwest wind 6 to 9 mph. Chance of precipitation is 80%. New precipitation 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 67. North wind 11 to 14 mph, with gusts as high as 23 mph.
Monday Night
Cloudy, with a low around 57.
Tuesday
Mostly cloudy, with a high near 67.
Tuesday Night
Mostly cloudy, with a low around 54.
Wednesday
Partly sunny, with a high near 64. Breezy.
Wednesday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 56. Breezy.
Thursday
A 20 percent chance of showers. Partly sunny, with a high near 68. Breezy.
Thursday Night
Partly cloudy, with a low around 59.
Friday
Mostly sunny, with a high near 71.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sullivans Island SC
 32.76°N 79.85°W (Elev. 0 ft)
Last Update:
2:35 am EDT Apr 4, 2026
Forecast Valid:
6am EDT Apr 4, 2026-6pm EDT Apr 10, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation