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

59°F

15°C

Humidity 77%
Wind Speed SW 7 mph
Barometer 29.95 in
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 26 Feb 7:55 pm EST
Extended Forecast for

Johns Island SC

  • Tonight

    Tonight: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 4am. Low around 55. Southwest wind 5 to 8 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 55 °F

    Chance
    Showers then
    Showers

  • Friday

    Friday: Showers. High near 64. Light and variable wind becoming southwest around 6 mph in the morning. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 64 °F

    Showers

  • Friday Night

    Friday Night: Showers likely. Cloudy, with a low around 53. East wind 3 to 5 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 53 °F

    Showers
    Likely

  • Saturday

    Saturday: A 20 percent chance of showers before 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 65. North wind around 7 mph.

    High: 65 °F

    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 48. Calm wind.

    Low: 48 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 70.

    High: 70 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 51.

    Low: 51 °F

    Mostly Cloudy

  • Monday

    Monday: A 20 percent chance of showers after 1pm. Mostly cloudy, with a high near 64.

    High: 64 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Monday Night

    Monday Night: A 20 percent chance of showers. Mostly cloudy, with a low around 45.

    Low: 45 °F

    Slight Chance
    Showers

Detailed Forecast

Tonight
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 4am. Low around 55. Southwest wind 5 to 8 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Friday
Showers. High near 64. Light and variable wind becoming southwest around 6 mph in the morning. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night
Showers likely. Cloudy, with a low around 53. East wind 3 to 5 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
A 20 percent chance of showers before 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 65. North wind around 7 mph.
Saturday Night
Partly cloudy, with a low around 48. Calm wind.
Sunday
Mostly sunny, with a high near 70.
Sunday Night
Mostly cloudy, with a low around 51.
Monday
A 20 percent chance of showers after 1pm. Mostly cloudy, with a high near 64.
Monday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 45.
Tuesday
A 20 percent chance of showers. Mostly cloudy, with a high near 61.
Tuesday Night
Mostly cloudy, with a low around 50.
Wednesday
A 20 percent chance of showers. Mostly sunny, with a high near 70.
Wednesday Night
Mostly cloudy, with a low around 54.
Thursday
A 30 percent chance of showers. Mostly sunny, with a high near 72.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Johns Island SC
 32.73°N 80.07°W (Elev. 23 ft)
Last Update:
7:33 pm EST Feb 26, 2026
Forecast Valid:
8pm EST Feb 26, 2026-6pm EST Mar 5, 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