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

75°F

24°C

Humidity 100%
Wind Speed SW 6 mph
Barometer 29.99 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Last update 6 Jun 1:15 am EDT
Extended Forecast for

Johns Island SC

  • Overnight

    Overnight: Partly cloudy, with a low around 71. Southwest wind around 6 mph.

    Low: 71 °F

    Partly Cloudy

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88. West wind 7 to 11 mph.

    High: 88 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms, mainly between 7pm and 8pm. Partly cloudy, with a low around 74. Southwest wind around 8 mph.

    Low: 74 °F

    Chance
    T-storms then
    Partly Cloudy

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 91. Heat index values as high as 102. West wind 8 to 14 mph.

    High: 91 °F

    Mostly Sunny
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms, mainly before 2am. Partly cloudy, with a low around 75. Southwest wind 8 to 10 mph.

    Low: 75 °F

    Chance
    T-storms

  • Sunday

    Sunday: Showers and thunderstorms likely, mainly after 2pm. Mostly sunny, with a high near 90. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 90 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Sunday Night

    Sunday Night: Showers and thunderstorms likely, mainly before 2am. Mostly cloudy, with a low around 73. Chance of precipitation is 70%.

    Low: 73 °F

    T-storms
    Likely

  • Monday

    Monday: Showers and thunderstorms likely, mainly after 2pm. Mostly sunny, with a high near 88. Chance of precipitation is 70%.

    High: 88 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Monday Night

    Monday Night: Showers and thunderstorms likely, mainly before 2am. Mostly cloudy, with a low around 74. Chance of precipitation is 60%.

    Low: 74 °F

    T-storms
    Likely

Detailed Forecast

Overnight
Partly cloudy, with a low around 71. Southwest wind around 6 mph.
Friday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88. West wind 7 to 11 mph.
Friday Night
A 30 percent chance of showers and thunderstorms, mainly between 7pm and 8pm. Partly cloudy, with a low around 74. Southwest wind around 8 mph.
Saturday
A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 91. Heat index values as high as 102. West wind 8 to 14 mph.
Saturday Night
A 40 percent chance of showers and thunderstorms, mainly before 2am. Partly cloudy, with a low around 75. Southwest wind 8 to 10 mph.
Sunday
Showers and thunderstorms likely, mainly after 2pm. Mostly sunny, with a high near 90. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Showers and thunderstorms likely, mainly before 2am. Mostly cloudy, with a low around 73. Chance of precipitation is 70%.
Monday
Showers and thunderstorms likely, mainly after 2pm. Mostly sunny, with a high near 88. Chance of precipitation is 70%.
Monday Night
Showers and thunderstorms likely, mainly before 2am. Mostly cloudy, with a low around 74. Chance of precipitation is 60%.
Tuesday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 88.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 73.
Wednesday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 87.
Wednesday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 73. Chance of precipitation is 60%.
Thursday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 86.
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ABOUT THIS FORECAST

 
Point Forecast:
Johns Island SC
 32.71°N 80.07°W (Elev. 10 ft)
Last Update:
12:11 am EDT Jun 6, 2025
Forecast Valid:
1am EDT Jun 6, 2025-6pm EDT Jun 12, 2025
 
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