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

30°F

-1°C

Humidity 86%
Wind Speed Calm
Barometer 30.20 in
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Last update 16 Jan 11:35 pm EST
Extended Forecast for

Sullivans Island SC

  • Tonight

    Tonight: Mostly clear, with a low around 43. Southwest wind around 8 mph.

    Low: 43 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 61. Southwest wind 9 to 11 mph.

    High: 61 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Showers likely, mainly after 1am. Cloudy, with a low around 40. Southwest wind 5 to 7 mph becoming northwest after midnight. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 40 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Sunday

    Sunday: Showers. High near 49. Northwest wind 9 to 13 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 49 °F

    Showers

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 32. Northwest wind around 9 mph.

    Low: 32 °F

    Mostly Clear

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 50.

    High: 50 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 33.

    Low: 33 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 47.

    High: 47 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 34.

    Low: 34 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 43. Southwest wind around 8 mph.
Saturday
Mostly sunny, with a high near 61. Southwest wind 9 to 11 mph.
Saturday Night
Showers likely, mainly after 1am. Cloudy, with a low around 40. Southwest wind 5 to 7 mph becoming northwest after midnight. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Showers. High near 49. Northwest wind 9 to 13 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
Mostly clear, with a low around 32. Northwest wind around 9 mph.
M.L.King Day
Sunny, with a high near 50.
Monday Night
Mostly clear, with a low around 33.
Tuesday
Mostly sunny, with a high near 47.
Tuesday Night
Mostly clear, with a low around 34.
Wednesday
Mostly sunny, with a high near 53.
Wednesday Night
Mostly cloudy, with a low around 42.
Thursday
A 20 percent chance of showers. Mostly cloudy, with a high near 59.
Thursday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 46.
Friday
A 20 percent chance of showers. Mostly sunny, with a high near 59.
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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:
7:32 pm EST Jan 16, 2026
Forecast Valid:
11pm EST Jan 16, 2026-6pm EST Jan 23, 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