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

48°F

9°C

Humidity 87%
Wind Speed Calm
Barometer 30.32 in
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 21 Jan 9:35 pm EST
Extended Forecast for

Sullivans Island SC

  • Tonight

    Tonight: Cloudy, with a low around 48. Calm wind.

    Low: 48 °F

    Cloudy

  • Thursday

    Thursday: Cloudy through mid morning, then gradual clearing, with a high near 61. Calm wind becoming south around 6 mph in the afternoon.

    High: 61 °F

    Gradual
    Clearing

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 49. Light and variable wind.

    Low: 49 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 62. Northeast wind 5 to 7 mph.

    High: 62 °F

    Partly Sunny

  • Friday Night

    Friday Night: A 30 percent chance of rain. Cloudy, with a low around 42. Northeast wind 6 to 11 mph, with gusts as high as 20 mph.

    Low: 42 °F

    Chance Rain

  • Saturday

    Saturday: A 50 percent chance of rain. Cloudy, with a high near 49. New precipitation amounts of less than a tenth of an inch possible.

    High: 49 °F

    Chance Rain

  • Saturday Night

    Saturday Night: Rain likely. Cloudy, with a low around 38. Chance of precipitation is 70%.

    Low: 38 °F

    Rain Likely

  • Sunday

    Sunday: Rain likely before 1pm, then showers after 1pm. High near 52. Chance of precipitation is 80%.

    High: 52 °F

    Showers

  • Sunday Night

    Sunday Night: Showers before 1am, then rain likely after 1am. Low around 37. Chance of precipitation is 80%.

    Low: 37 °F

    Showers

Detailed Forecast

Tonight
Cloudy, with a low around 48. Calm wind.
Thursday
Cloudy through mid morning, then gradual clearing, with a high near 61. Calm wind becoming south around 6 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 49. Light and variable wind.
Friday
Partly sunny, with a high near 62. Northeast wind 5 to 7 mph.
Friday Night
A 30 percent chance of rain. Cloudy, with a low around 42. Northeast wind 6 to 11 mph, with gusts as high as 20 mph.
Saturday
A 50 percent chance of rain. Cloudy, with a high near 49. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
Rain likely. Cloudy, with a low around 38. Chance of precipitation is 70%.
Sunday
Rain likely before 1pm, then showers after 1pm. High near 52. Chance of precipitation is 80%.
Sunday Night
Showers before 1am, then rain likely after 1am. Low around 37. Chance of precipitation is 80%.
Monday
A 30 percent chance of rain before 1pm. Partly sunny, with a high near 44.
Monday Night
Partly cloudy, with a low around 25.
Tuesday
Sunny, with a high near 40.
Tuesday Night
Mostly clear, with a low around 29.
Wednesday
Mostly sunny, with a high near 48.
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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:
7:33 pm EST Jan 21, 2026
Forecast Valid:
10pm EST Jan 21, 2026-6pm EST Jan 28, 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