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

73°F

23°C

Humidity 61%
Wind Speed S 14 G 20 mph
Barometer 30.12 in
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 28 Apr 2:55 pm EDT
Extended Forecast for

Johns Island SC

  • Tonight

    Tonight: Increasing clouds, with a low around 64. South wind 7 to 9 mph.

    Low: 64 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Showers and thunderstorms likely, mainly before 2pm. Cloudy through mid morning, then gradual clearing, with a high near 81. Southwest wind 10 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 81 °F

    Showers
    Likely then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers, mainly after 2am. Increasing clouds, with a low around 65. Southwest wind 5 to 9 mph.

    Low: 65 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of showers and thunderstorms before 2pm, then a slight chance of showers. Mostly cloudy, with a high near 79. North wind around 7 mph. Chance of precipitation is 40%.

    High: 79 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 60. Light east wind.

    Low: 60 °F

    Mostly Cloudy

  • Friday

    Friday: A 30 percent chance of showers, mainly after 2pm. Mostly cloudy, with a high near 74.

    High: 74 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Showers likely, mainly after 2am. Mostly cloudy, with a low around 59. Chance of precipitation is 60%.

    Low: 59 °F

    Showers
    Likely

  • Saturday

    Saturday: Showers and possibly a thunderstorm. High near 68. Chance of precipitation is 80%.

    High: 68 °F

    Showers

  • Saturday Night

    Saturday Night: A 30 percent chance of showers before 2am. Mostly cloudy, with a low around 52.

    Low: 52 °F

    Chance
    Showers

Detailed Forecast

Tonight
Increasing clouds, with a low around 64. South wind 7 to 9 mph.
Wednesday
Showers and thunderstorms likely, mainly before 2pm. Cloudy through mid morning, then gradual clearing, with a high near 81. Southwest wind 10 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
A 40 percent chance of showers, mainly after 2am. Increasing clouds, with a low around 65. Southwest wind 5 to 9 mph.
Thursday
A chance of showers and thunderstorms before 2pm, then a slight chance of showers. Mostly cloudy, with a high near 79. North wind around 7 mph. Chance of precipitation is 40%.
Thursday Night
Mostly cloudy, with a low around 60. Light east wind.
Friday
A 30 percent chance of showers, mainly after 2pm. Mostly cloudy, with a high near 74.
Friday Night
Showers likely, mainly after 2am. Mostly cloudy, with a low around 59. Chance of precipitation is 60%.
Saturday
Showers and possibly a thunderstorm. High near 68. Chance of precipitation is 80%.
Saturday Night
A 30 percent chance of showers before 2am. Mostly cloudy, with a low around 52.
Sunday
Partly sunny, with a high near 71.
Sunday Night
Mostly clear, with a low around 53.
Monday
Sunny, with a high near 76.
Monday Night
Mostly clear, with a low around 58.
Tuesday
Sunny, with a high near 80.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Johns Island SC
 32.73°N 80.07°W (Elev. 23 ft)
Last Update:
2:35 pm EDT Apr 28, 2026
Forecast Valid:
3pm EDT Apr 28, 2026-6pm EDT May 5, 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