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.

Fog/Mist

59°F

15°C

Humidity 100%
Wind Speed N 6 mph
Barometer 29.98 in
Dewpoint 59°F (15°C)
Visibility 3.00 mi
Last update 27 Feb 7:35 pm EST
Extended Forecast for

Johns Island SC

  • Tonight

    Tonight: A 20 percent chance of showers before 9pm. Areas of fog. Otherwise, cloudy, with a low around 51. North wind 3 to 6 mph.

    Low: 51 °F

    Slight Chance
    Showers and
    Areas Fog
    then Areas
    Fog

  • Saturday

    Saturday: Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 65. North wind around 7 mph.

    High: 65 °F

    Patchy Fog
    then Partly
    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 49. Calm wind.

    Low: 49 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 70. Calm wind becoming south around 6 mph in the afternoon.

    High: 70 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 49. Calm wind becoming northeast around 6 mph after midnight.

    Low: 49 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 61.

    High: 61 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 47.

    Low: 47 °F

    Mostly Cloudy

  • Tuesday

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

    High: 64 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 53.

    Low: 53 °F

    Partly Cloudy

Detailed Forecast

Tonight
A 20 percent chance of showers before 9pm. Areas of fog. Otherwise, cloudy, with a low around 51. North wind 3 to 6 mph.
Saturday
Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 65. North wind around 7 mph.
Saturday Night
Partly cloudy, with a low around 49. Calm wind.
Sunday
Sunny, with a high near 70. Calm wind becoming south around 6 mph in the afternoon.
Sunday Night
Mostly cloudy, with a low around 49. Calm wind becoming northeast around 6 mph after midnight.
Monday
Mostly sunny, with a high near 61.
Monday Night
Mostly cloudy, with a low around 47.
Tuesday
A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 64.
Tuesday Night
Partly cloudy, with a low around 53.
Wednesday
Mostly sunny, with a high near 72.
Wednesday Night
Partly cloudy, with a low around 57.
Thursday
A 30 percent chance of showers. Partly sunny, with a high near 74.
Thursday Night
Partly cloudy, with a low around 58.
Friday
A 40 percent chance of showers. Partly sunny, with a high near 74.
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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:
7:32 pm EST Feb 27, 2026
Forecast Valid:
7pm EST Feb 27, 2026-6pm EST Mar 6, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation