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

81°F

27°C

Humidity 89%
Wind Speed S 7 mph
Barometer 30.07 in
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index88°F (31°C)
Last update 18 Jun 1:35 am EDT
Extended Forecast for

3 Miles E Johns Island SC

  • Overnight

    Overnight: Clear, with a low around 79. Southwest wind 7 to 10 mph.

    Low: 79 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 91. Heat index values as high as 103. Southwest wind 7 to 11 mph.

    High: 91 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 79. South wind 8 to 10 mph, with gusts as high as 21 mph.

    Low: 79 °F

    Partly Cloudy

  • Juneteenth

    Juneteenth: A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 91. Heat index values as high as 105. Southwest wind 8 to 15 mph, with gusts as high as 22 mph.

    High: 91 °F

    Mostly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: A 40 percent chance of showers and thunderstorms, mainly after 2am. Partly cloudy, with a low around 77. South wind 6 to 11 mph.

    Low: 77 °F

    Chance
    T-storms

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.

    High: 90 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 76.

    Low: 76 °F

    Chance
    T-storms

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.

    High: 89 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 76.

    Low: 76 °F

    Mostly Clear

Detailed Forecast

Overnight
Clear, with a low around 79. Southwest wind 7 to 10 mph.
Wednesday
Sunny, with a high near 91. Heat index values as high as 103. Southwest wind 7 to 11 mph.
Wednesday Night
Partly cloudy, with a low around 79. South wind 8 to 10 mph, with gusts as high as 21 mph.
Juneteenth
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 91. Heat index values as high as 105. Southwest wind 8 to 15 mph, with gusts as high as 22 mph.
Thursday Night
A 40 percent chance of showers and thunderstorms, mainly after 2am. Partly cloudy, with a low around 77. South wind 6 to 11 mph.
Friday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.
Friday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 76.
Saturday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
Saturday Night
Mostly clear, with a low around 76.
Sunday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 89.
Sunday Night
Mostly clear, with a low around 76.
Monday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 90.
Monday Night
Mostly clear, with a low around 76.
Tuesday
Sunny, with a high near 91.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles E Johns Island SC
 32.73°N 80.01°W (Elev. 3 ft)
Last Update:
1:04 am EDT Jun 18, 2025
Forecast Valid:
1am EDT Jun 18, 2025-6pm EDT Jun 24, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation