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

90°F

32°C

Humidity 67%
Wind Speed SW 14 G 22 mph
Barometer 29.97 in
Dewpoint 77°F (25°C)
Visibility 9.00 mi
Heat Index104°F (40°C)
Last update 21 Jul 4:55 pm EDT
Extended Forecast for

5 Miles ESE Johns Island SC

  • Tonight

    Tonight: Partly cloudy, with a low around 81. South wind 13 to 17 mph, with gusts as high as 24 mph.

    Low: 81 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 92. Heat index values as high as 105. South wind 11 to 17 mph, with gusts as high as 24 mph.

    High: 92 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 81. South wind 11 to 13 mph, with gusts as high as 22 mph.

    Low: 81 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 93. Heat index values as high as 105. Southwest wind 9 to 14 mph.

    High: 93 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A slight chance of showers between 2am and 5am, then a slight chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 80. South wind around 9 mph. Chance of precipitation is 20%.

    Low: 80 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms, mainly after 2pm. Partly sunny, with a high near 91.

    High: 91 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 79.

    Low: 79 °F

    Chance
    T-storms

  • Saturday

    Saturday: A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 89. Chance of precipitation is 60%.

    High: 89 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms after 8pm. Mostly cloudy, with a low around 77. Chance of precipitation is 60%.

    Low: 77 °F

    Showers
    Likely then
    Chance
    T-storms

Detailed Forecast

Tonight
Partly cloudy, with a low around 81. South wind 13 to 17 mph, with gusts as high as 24 mph.
Wednesday
Partly sunny, with a high near 92. Heat index values as high as 105. South wind 11 to 17 mph, with gusts as high as 24 mph.
Wednesday Night
Partly cloudy, with a low around 81. South wind 11 to 13 mph, with gusts as high as 22 mph.
Thursday
Mostly sunny, with a high near 93. Heat index values as high as 105. Southwest wind 9 to 14 mph.
Thursday Night
A slight chance of showers between 2am and 5am, then a slight chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 80. South wind around 9 mph. Chance of precipitation is 20%.
Friday
A 40 percent chance of showers and thunderstorms, mainly after 2pm. Partly sunny, with a high near 91.
Friday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 79.
Saturday
A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 89. Chance of precipitation is 60%.
Saturday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms after 8pm. Mostly cloudy, with a low around 77. Chance of precipitation is 60%.
Sunday
Showers and thunderstorms likely, mainly after 2pm. Mostly sunny, with a high near 91. Chance of precipitation is 60%.
Sunday Night
Showers and thunderstorms likely. Partly cloudy, with a low around 78. Chance of precipitation is 60%.
Monday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 93.
Monday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 80.
Tuesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.
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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:
5:05 pm EDT Jul 21, 2026
Forecast Valid:
5pm EDT Jul 21, 2026-6pm EDT Jul 28, 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