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.

52°F

11°C

Humidity 100%
Wind Speed Calm
Barometer 30.29 in
Dewpoint 52°F (11°C)
Visibility 7.00 mi
Last update 4 Mar 2:35 am EST
Extended Forecast for

Johns Island SC

  • Overnight

    Overnight: Patchy dense fog. Otherwise, mostly cloudy, with a low around 54. Calm wind.

    Low: 54 °F

    Patchy Dense
    Fog

  • Wednesday

    Wednesday: Areas of dense fog before 10am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 73. Calm wind becoming south around 6 mph in the afternoon.

    High: 73 °F

    Areas Dense
    Fog then
    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 57. Light south wind.

    Low: 57 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 74. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 74 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 59. Light southeast wind.

    Low: 59 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

  • Friday Night

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

    Low: 60 °F

    Mostly 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

Detailed Forecast

Overnight
Patchy dense fog. Otherwise, mostly cloudy, with a low around 54. Calm wind.
Wednesday
Areas of dense fog before 10am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 73. Calm wind becoming south around 6 mph in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 57. Light south wind.
Thursday
Mostly sunny, with a high near 74. Calm wind becoming south 5 to 7 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 59. Light southeast wind.
Friday
Mostly sunny, with a high near 76.
Friday Night
Mostly cloudy, with a low around 60.
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 77.
Sunday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 60.
Monday
A 30 percent chance of showers. Partly sunny, with a high near 76.
Monday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 60.
Tuesday
A 20 percent chance of showers. Mostly sunny, with a high near 76.
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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:
1:30 am EST Mar 4, 2026
Forecast Valid:
2am EST Mar 4, 2026-6pm EDT Mar 10, 2026
 
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Additional Resources

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Chance of Precipitation