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

70°F

21°C

Humidity 83%
Wind Speed SW 12 mph
Barometer 29.90 in
Dewpoint 64°F (18°C)
Visibility 9.00 mi
Last update 20 Feb 9:35 am EST
Extended Forecast for

Sullivans Island SC

  • Today

    Today: A slight chance of showers before 1pm, then a chance of showers after 2pm. Mostly cloudy, with a high near 67. Southwest wind 14 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 40%.

    High: 67 °F

    Mostly Cloudy
    then Chance
    Showers

  • Tonight

    Tonight: A 50 percent chance of showers and thunderstorms, mainly after 3am. Mostly cloudy, with a low around 57. Southwest wind 6 to 8 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 57 °F

    Chance
    Showers

  • Saturday

    Saturday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 66. Southwest wind 6 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 66 °F

    Chance
    Showers then
    Showers

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm. Low around 52. Southwest wind 5 to 7 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 52 °F

    Showers

  • Sunday

    Sunday: A 50 percent chance of showers, mainly before 1pm. Partly sunny, with a high near 60. Northwest wind 9 to 14 mph, with gusts as high as 22 mph. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 60 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 35.

    Low: 35 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 47.

    High: 47 °F

    Sunny

  • Monday Night

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

    Low: 32 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 49.

    High: 49 °F

    Sunny

Detailed Forecast

Today
A slight chance of showers before 1pm, then a chance of showers after 2pm. Mostly cloudy, with a high near 67. Southwest wind 14 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 40%.
Tonight
A 50 percent chance of showers and thunderstorms, mainly after 3am. Mostly cloudy, with a low around 57. Southwest wind 6 to 8 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 66. Southwest wind 6 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers and possibly a thunderstorm. Low around 52. Southwest wind 5 to 7 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
A 50 percent chance of showers, mainly before 1pm. Partly sunny, with a high near 60. Northwest wind 9 to 14 mph, with gusts as high as 22 mph. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Mostly clear, with a low around 35.
Monday
Sunny, with a high near 47.
Monday Night
Mostly clear, with a low around 32.
Tuesday
Sunny, with a high near 49.
Tuesday Night
Mostly clear, with a low around 40.
Wednesday
Mostly sunny, with a high near 58.
Wednesday Night
Mostly cloudy, with a low around 50.
Thursday
A 30 percent chance of showers. Mostly cloudy, with a high near 62.
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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:
8:22 am EST Feb 20, 2026
Forecast Valid:
9am EST Feb 20, 2026-6pm EST Feb 26, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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