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.

Overcast

57°F

14°C

Humidity 94%
Wind Speed SW 6 mph
Barometer 29.93 in
Dewpoint 55°F (13°C)
Visibility 8.00 mi
Last update 19 Feb 4:35 am EST
Extended Forecast for

Johns Island SC

  • Today

    Today: A 30 percent chance of showers, mainly before noon. Mostly cloudy, with a high near 71. Southwest wind 6 to 11 mph, with gusts as high as 20 mph.

    High: 71 °F

    Chance
    Showers

  • Tonight

    Tonight: Mostly cloudy, with a low around 58. Southwest wind around 9 mph.

    Low: 58 °F

    Mostly Cloudy

  • Friday

    Friday: Showers likely, mainly after 1pm. Mostly cloudy, with a high near 74. Southwest wind 10 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 74 °F

    Chance
    Showers then
    Showers
    Likely

  • Friday Night

    Friday Night: A chance of showers, with thunderstorms also possible after 4am. Mostly cloudy, with a low around 58. Southwest wind around 6 mph. Chance of precipitation is 40%.

    Low: 58 °F

    Chance
    Showers

  • Saturday

    Saturday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 70. Southwest wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 70 °F

    Chance
    Showers then
    Showers

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm. Cloudy, with a low around 53. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 53 °F

    Showers
    Likely

  • Sunday

    Sunday: A 50 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 35.

    Low: 35 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 51.

    High: 51 °F

    Sunny

Detailed Forecast

Today
A 30 percent chance of showers, mainly before noon. Mostly cloudy, with a high near 71. Southwest wind 6 to 11 mph, with gusts as high as 20 mph.
Tonight
Mostly cloudy, with a low around 58. Southwest wind around 9 mph.
Friday
Showers likely, mainly after 1pm. Mostly cloudy, with a high near 74. Southwest wind 10 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
A chance of showers, with thunderstorms also possible after 4am. Mostly cloudy, with a low around 58. Southwest wind around 6 mph. Chance of precipitation is 40%.
Saturday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 70. Southwest wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
Showers likely and possibly a thunderstorm. Cloudy, with a low around 53. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
A 50 percent chance of showers, mainly before 1pm. Partly sunny, with a high near 64.
Sunday Night
Mostly clear, with a low around 35.
Monday
Sunny, with a high near 51.
Monday Night
Mostly clear, with a low around 31.
Tuesday
Sunny, with a high near 52.
Tuesday Night
Mostly clear, with a low around 37.
Wednesday
Mostly sunny, with a high near 59.
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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:
1:30 am EST Feb 19, 2026
Forecast Valid:
4am EST Feb 19, 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