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

84°F

29°C

Humidity 74%
Wind Speed S 14 mph
Barometer 30.04 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index92°F (33°C)
Last update 22 Jul 11:15 pm EDT
Extended Forecast for

5 Miles ESE Johns Island SC

  • Tonight

    Tonight: Partly cloudy, with a low around 81. South wind around 11 mph, with gusts as high as 20 mph.

    Low: 81 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 93. Heat index values as high as 106. Southwest wind 8 to 13 mph.

    High: 93 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 80. South wind 7 to 9 mph.

    Low: 80 °F

    Mostly Cloudy

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 92. Heat index values as high as 105. Southwest wind 5 to 11 mph.

    High: 92 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms, mainly before 2am. Mostly cloudy, with a low around 79. South wind around 6 mph becoming calm in the evening.

    Low: 79 °F

    Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. High near 91. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 91 °F

    Chance
    T-storms then
    T-storms

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm, mainly before 2am, then a chance of showers and thunderstorms after 2am. Low around 77. Chance of precipitation is 80%.

    Low: 77 °F

    T-storms then
    Showers
    Likely

  • Sunday

    Sunday: Showers and thunderstorms likely, mainly after 2pm. Partly sunny, with a high near 90. Chance of precipitation is 70%.

    High: 90 °F

    T-storms
    Likely

  • Sunday Night

    Sunday Night: Showers and thunderstorms likely, mainly before 8pm. Partly cloudy, with a low around 77. Chance of precipitation is 60%.

    Low: 77 °F

    T-storms
    Likely then
    Slight Chance
    T-storms

Detailed Forecast

Tonight
Partly cloudy, with a low around 81. South wind around 11 mph, with gusts as high as 20 mph.
Thursday
Partly sunny, with a high near 93. Heat index values as high as 106. Southwest wind 8 to 13 mph.
Thursday Night
Mostly cloudy, with a low around 80. South wind 7 to 9 mph.
Friday
A 40 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 92. Heat index values as high as 105. Southwest wind 5 to 11 mph.
Friday Night
A 40 percent chance of showers and thunderstorms, mainly before 2am. Mostly cloudy, with a low around 79. South wind around 6 mph becoming calm in the evening.
Saturday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. High near 91. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
Showers and possibly a thunderstorm, mainly before 2am, then a chance of showers and thunderstorms after 2am. Low around 77. Chance of precipitation is 80%.
Sunday
Showers and thunderstorms likely, mainly after 2pm. Partly sunny, with a high near 90. Chance of precipitation is 70%.
Sunday Night
Showers and thunderstorms likely, mainly before 8pm. Partly cloudy, with a low around 77. Chance of precipitation is 60%.
Monday
Mostly sunny, with a high near 91.
Monday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 79.
Tuesday
Sunny, with a high near 92.
Tuesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 80.
Wednesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles ESE Johns Island SC
 32.7°N 79.99°W (Elev. 3 ft)
Last Update:
8:30 pm EDT Jul 22, 2026
Forecast Valid:
11pm EDT Jul 22, 2026-6pm EDT Jul 29, 2026
 
Forecast Discussion
 
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Additional Resources

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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