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.

Fair

68°F

20°C

Humidity 88%
Wind Speed SW 8 mph
Barometer 30.08 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 9 Mar 7:55 pm EDT
Extended Forecast for

Johns Island SC

  • Tonight

    Tonight: Mostly cloudy, with a low around 60. South wind around 5 mph becoming calm in the evening.

    Low: 60 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 80. Calm wind becoming southwest 5 to 8 mph in the afternoon. Chance of precipitation is 30%.

    High: 80 °F

    Partly Sunny
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 61. Southwest wind around 6 mph.

    Low: 61 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 79. Southwest wind 5 to 11 mph.

    High: 79 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 63. Southwest wind around 10 mph.

    Low: 63 °F

    Mostly Cloudy

  • Thursday

    Thursday: Showers, mainly after 2pm. High near 74. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 74 °F

    Chance
    Showers then
    Showers

  • Thursday Night

    Thursday Night: Showers, mainly before 8pm. Low around 45. Chance of precipitation is 80%.

    Low: 45 °F

    Showers then
    Chance
    Showers

  • Friday

    Friday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 60. South wind around 5 mph becoming calm in the evening.
Tuesday
A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 80. Calm wind becoming southwest 5 to 8 mph in the afternoon. Chance of precipitation is 30%.
Tuesday Night
Partly cloudy, with a low around 61. Southwest wind around 6 mph.
Wednesday
Mostly sunny, with a high near 79. Southwest wind 5 to 11 mph.
Wednesday Night
Mostly cloudy, with a low around 63. Southwest wind around 10 mph.
Thursday
Showers, mainly after 2pm. High near 74. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
Showers, mainly before 8pm. Low around 45. Chance of precipitation is 80%.
Friday
Sunny, with a high near 66.
Friday Night
Mostly clear, with a low around 52.
Saturday
Sunny, with a high near 73.
Saturday Night
Mostly clear, with a low around 57.
Sunday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 75.
Sunday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 60.
Monday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 75.
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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:
7:07 pm EDT Mar 9, 2026
Forecast Valid:
8pm EDT Mar 9, 2026-6pm EDT Mar 16, 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