National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Charleston Executive Airport (KJZI)

Lat: 32.7°NLon: 80°WElev: 16ft.

Fair

75°F

24°C

Humidity 94%
Wind Speed Calm
Barometer 29.97 in
Dewpoint 73°F (23°C)
Visibility 8.00 mi
Last update 18 Aug 7:35 am EDT
Extended Forecast for

3 Miles E Johns Island SC

  • Today

    Today: Sunny, with a high near 92. Heat index values as high as 101. Calm wind becoming east around 6 mph in the afternoon.

    High: 92 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 77. South wind around 6 mph becoming calm in the evening.

    Low: 77 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 89. East wind 8 to 16 mph, with gusts as high as 24 mph.

    High: 89 °F

    Sunny then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 75. Northeast wind 9 to 13 mph.

    Low: 75 °F

    Chance
    T-storms then
    Mostly Clear

  • Wednesday

    Wednesday: A slight chance of showers, then a chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 90. North wind 13 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.

    High: 90 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 76.

    Low: 76 °F

    Chance
    T-storms then
    Mostly Clear

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 91.

    High: 91 °F

    Sunny then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms, mainly after 2am. Partly cloudy, with a low around 76.

    Low: 76 °F

    Chance
    T-storms

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 87.

    High: 87 °F

    Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 92. Heat index values as high as 101. Calm wind becoming east around 6 mph in the afternoon.
Tonight
Mostly clear, with a low around 77. South wind around 6 mph becoming calm in the evening.
Tuesday
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 89. East wind 8 to 16 mph, with gusts as high as 24 mph.
Tuesday Night
A 30 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 75. Northeast wind 9 to 13 mph.
Wednesday
A slight chance of showers, then a chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 90. North wind 13 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.
Wednesday Night
A 30 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 76.
Thursday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 91.
Thursday Night
A 30 percent chance of showers and thunderstorms, mainly after 2am. Partly cloudy, with a low around 76.
Friday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 87.
Friday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 76.
Saturday
Showers and thunderstorms likely. Partly sunny, with a high near 86. Chance of precipitation is 60%.
Saturday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 75. Chance of precipitation is 60%.
Sunday
Showers and thunderstorms likely. Partly sunny, with a high near 88. Chance of precipitation is 60%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles E Johns Island SC
 32.73°N 80.01°W (Elev. 3 ft)
Last Update:
7:13 am EDT Aug 18, 2025
Forecast Valid:
7am EDT Aug 18, 2025-6pm EDT Aug 24, 2025
 
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