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

73°F

23°C

Humidity 65%
Wind Speed SE 8 mph
Barometer 30.27 in
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 4 Mar 2:35 pm EST
Extended Forecast for

Johns Island SC

  • This Afternoon

    This Afternoon: Sunny, with a high near 74. South wind around 6 mph.

    High: 74 °F

    Sunny

  • Tonight

    Tonight: Patchy fog before 10pm, then areas of fog after 1am. Otherwise, mostly cloudy, with a low around 57. Light south wind.

    Low: 57 °F

    Areas Fog

  • Thursday

    Thursday: Widespread dense fog, mainly before 8am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 74. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 74 °F

    Dense Fog
    then Sunny

  • Thursday Night

    Thursday Night: Patchy fog after 1am. Otherwise, partly cloudy, with a low around 59. Light south wind.

    Low: 59 °F

    Partly Cloudy
    then Patchy
    Fog

  • Friday

    Friday: Mostly sunny, with a high near 76. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 76 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 75.

    High: 75 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 60.

    Low: 60 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 30 percent chance of showers after 1pm. Partly sunny, with a high near 76.

    High: 76 °F

    Partly Sunny
    then Chance
    Showers

Detailed Forecast

This Afternoon
Sunny, with a high near 74. South wind around 6 mph.
Tonight
Patchy fog before 10pm, then areas of fog after 1am. Otherwise, mostly cloudy, with a low around 57. Light south wind.
Thursday
Widespread dense fog, mainly before 8am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 74. Calm wind becoming south 5 to 7 mph in the afternoon.
Thursday Night
Patchy fog after 1am. Otherwise, partly cloudy, with a low around 59. Light south wind.
Friday
Mostly sunny, with a high near 76. Calm wind becoming south 5 to 7 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 59.
Saturday
Mostly sunny, with a high near 75.
Saturday Night
Mostly cloudy, with a low around 60.
Sunday
A 30 percent chance of showers after 1pm. Partly sunny, with a high near 76.
Sunday Night
A 30 percent chance of showers before 1am. Mostly cloudy, with a low around 60.
Monday
A 30 percent chance of showers. Partly sunny, with a high near 76.
Monday Night
Partly cloudy, with a low around 60.
Tuesday
Mostly sunny, with a high near 76.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Johns Island SC
 32.73°N 80.07°W (Elev. 23 ft)
Last Update:
1:30 pm EST Mar 4, 2026
Forecast Valid:
2pm EST Mar 4, 2026-6pm EDT Mar 10, 2026
 
Forecast Discussion
 
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Additional Resources

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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