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.

Mostly Cloudy

61°F

16°C

Humidity 83%
Wind Speed SW 7 G 13 mph
Barometer 29.98 in
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 18 Feb 9:15 pm EST
Extended Forecast for

Johns Island SC

  • Tonight

    Tonight: Mostly cloudy, with a low around 54. Southwest wind around 6 mph.

    Low: 54 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 71. Southwest wind 6 to 11 mph, with gusts as high as 20 mph.

    High: 71 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 57. Southwest wind 7 to 9 mph.

    Low: 57 °F

    Mostly Cloudy

  • Friday

    Friday: A 50 percent chance of showers, mainly after 1pm. Mostly cloudy, with a high near 74. Southwest wind 10 to 14 mph, with gusts as high as 23 mph. New precipitation amounts of less than a tenth of an inch possible.

    High: 74 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Friday Night

    Friday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 58. Southwest wind around 6 mph.

    Low: 58 °F

    Chance
    Showers

  • Saturday

    Saturday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 72. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 72 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 53. Chance of precipitation is 60%.

    Low: 53 °F

    Showers
    Likely

  • Sunday

    Sunday: A 40 percent chance of showers, mainly before 1pm. Partly sunny, with a high near 64.

    High: 64 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 36.

    Low: 36 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 54. Southwest wind around 6 mph.
Thursday
Mostly cloudy, with a high near 71. Southwest wind 6 to 11 mph, with gusts as high as 20 mph.
Thursday Night
Mostly cloudy, with a low around 57. Southwest wind 7 to 9 mph.
Friday
A 50 percent chance of showers, mainly after 1pm. Mostly cloudy, with a high near 74. Southwest wind 10 to 14 mph, with gusts as high as 23 mph. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 58. Southwest wind around 6 mph.
Saturday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 72. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 53. Chance of precipitation is 60%.
Sunday
A 40 percent chance of showers, mainly before 1pm. Partly sunny, with a high near 64.
Sunday Night
Mostly clear, with a low around 36.
Monday
Sunny, with a high near 52.
Monday Night
Partly cloudy, with a low around 33.
Tuesday
Sunny, with a high near 54.
Tuesday Night
Mostly clear, with a low around 38.
Wednesday
Partly sunny, with a high near 61.
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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:
7:30 pm EST Feb 18, 2026
Forecast Valid:
9pm EST Feb 18, 2026-6pm EST Feb 25, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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