National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Charleston Executive Airport (KJZI)

Lat: 32.7°NLon: 80°WElev: 16ft.

Fair

72°F

22°C

Humidity 78%
Wind Speed SW 9 mph
Barometer 29.95 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 19 Apr 12:30 am EDT
Extended Forecast for

Sullivans Island SC

  • Overnight

    Overnight: Mostly cloudy, with a low around 67. Southwest wind around 10 mph, with gusts as high as 20 mph.

    Low: 67 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers after 3pm. Mostly cloudy, with a high near 78. Southwest wind 8 to 14 mph becoming north in the afternoon. Winds could gust as high as 22 mph.

    High: 78 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Sunday Night

    Sunday Night: Cloudy during the early evening, then gradual clearing, with a low around 55. North wind 9 to 11 mph.

    Low: 55 °F

    Gradual
    Clearing

  • Monday

    Monday: Sunny, with a high near 70. North wind 8 to 10 mph.

    High: 70 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 55. South wind 6 to 8 mph becoming northwest after midnight.

    Low: 55 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 69.

    High: 69 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 74.

    High: 74 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 67. Southwest wind around 10 mph, with gusts as high as 20 mph.
Sunday
A 20 percent chance of showers after 3pm. Mostly cloudy, with a high near 78. Southwest wind 8 to 14 mph becoming north in the afternoon. Winds could gust as high as 22 mph.
Sunday Night
Cloudy during the early evening, then gradual clearing, with a low around 55. North wind 9 to 11 mph.
Monday
Sunny, with a high near 70. North wind 8 to 10 mph.
Monday Night
Mostly clear, with a low around 55. South wind 6 to 8 mph becoming northwest after midnight.
Tuesday
Sunny, with a high near 69.
Tuesday Night
Mostly clear, with a low around 60.
Wednesday
Mostly sunny, with a high near 74.
Wednesday Night
Mostly clear, with a low around 61.
Thursday
Sunny, with a high near 77.
Thursday Night
Mostly clear, with a low around 64.
Friday
Sunny, with a high near 77.
Friday Night
Partly cloudy, with a low around 66.
Saturday
A 20 percent chance of showers. Mostly sunny, with a high near 78.
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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 pm EDT Apr 18, 2026
Forecast Valid:
1am EDT Apr 19, 2026-6pm EDT Apr 25, 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