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.

Partly Cloudy

84°F

29°C

Humidity 84%
Wind Speed SE 3 mph
Barometer 30.00 in
Dewpoint 79°F (26°C)
Visibility 10.00 mi
Heat Index96°F (36°C)
Last update 17 Aug 11:55 am EDT
Extended Forecast for

Johns Island SC

  • This Afternoon

    This Afternoon: A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 88. East wind around 8 mph.

    High: 88 °F

    Chance
    T-storms

  • Tonight

    Tonight: Mostly clear, with a low around 73. East wind around 5 mph becoming calm in the evening.

    Low: 73 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 91. North wind 5 to 8 mph becoming southeast in the afternoon.

    High: 91 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 75. South wind 5 to 7 mph becoming northeast after midnight.

    Low: 75 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90. North wind 8 to 13 mph, with gusts as high as 21 mph.

    High: 90 °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.

    Low: 75 °F

    Chance
    T-storms then
    Mostly Clear

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 90.

    High: 90 °F

    Sunny then
    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 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90.

    High: 90 °F

    Sunny then
    Chance
    T-storms

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 88. East wind around 8 mph.
Tonight
Mostly clear, with a low around 73. East wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 91. North wind 5 to 8 mph becoming southeast in the afternoon.
Monday Night
Mostly clear, with a low around 75. South wind 5 to 7 mph becoming northeast after midnight.
Tuesday
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90. North wind 8 to 13 mph, with gusts as high as 21 mph.
Tuesday Night
A 30 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 75.
Wednesday
A 30 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 90.
Wednesday Night
A 30 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 76.
Thursday
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90.
Thursday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 76.
Friday
Showers and thunderstorms likely. Partly sunny, with a high near 88. Chance of precipitation is 60%.
Friday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 76. Chance of precipitation is 60%.
Saturday
Showers and thunderstorms likely. Mostly cloudy, with a high near 87. Chance of precipitation is 70%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Johns Island SC
 32.71°N 80.07°W (Elev. 10 ft)
Last Update:
6:38 am EDT Aug 17, 2025
Forecast Valid:
12pm EDT Aug 17, 2025-6pm EDT Aug 23, 2025
 
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Additional Resources

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Chance of Precipitation