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.

Overcast

75°F

24°C

Humidity 89%
Wind Speed N 9 mph
Barometer 29.94 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Last update 29 Sep 10:35 pm EDT
Extended Forecast for

Johns Island SC

High Surf Advisory September 29, 10:52pm until October 4, 08:00am
Click here for hazard details and duration
High Surf Advisory
  •  
    High Surf Advisory September 29, 10:52pm until October 4, 08:00am

    NOW until 8:00am Sat

    High Surf Advisory

  • Tonight

    Low: 70 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms, mainly after 5pm. Cloudy, then gradually becoming mostly sunny, with a high near 79. North wind 14 to 16 mph, with gusts as high as 26 mph.

    High: 79 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers before 7pm. Partly cloudy, with a low around 66. North wind 10 to 13 mph, with gusts as high as 23 mph.

    Low: 66 °F

    Chance
    Showers then
    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 81. Northeast wind 10 to 13 mph, with gusts as high as 22 mph.

    High: 81 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 62. Northeast wind 10 to 13 mph, with gusts as high as 22 mph.

    Low: 62 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 62.

    Low: 62 °F

    Partly Cloudy

  • Friday

    Friday: A 20 percent chance of showers after 2pm. Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

Detailed Forecast

Tonight
A 50 percent chance of showers. Cloudy, with a low around 70. North wind 11 to 13 mph, with gusts as high as 21 mph. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly after 5pm. Cloudy, then gradually becoming mostly sunny, with a high near 79. North wind 14 to 16 mph, with gusts as high as 26 mph.
Tuesday Night
A 30 percent chance of showers before 7pm. Partly cloudy, with a low around 66. North wind 10 to 13 mph, with gusts as high as 23 mph.
Wednesday
Sunny, with a high near 81. Northeast wind 10 to 13 mph, with gusts as high as 22 mph.
Wednesday Night
Mostly clear, with a low around 62. Northeast wind 10 to 13 mph, with gusts as high as 22 mph.
Thursday
Sunny, with a high near 76.
Thursday Night
Partly cloudy, with a low around 62.
Friday
A 20 percent chance of showers after 2pm. Mostly sunny, with a high near 78.
Friday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 66.
Saturday
A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 79. Chance of precipitation is 30%.
Saturday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69.
Sunday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 80.
Sunday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69.
Monday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 81.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Johns Island SC
 32.73°N 80.07°W (Elev. 23 ft)
Last Update:
9:27 pm EDT Sep 29, 2025
Forecast Valid:
10pm EDT Sep 29, 2025-6pm EDT Oct 6, 2025
 
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