National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Charleston Executive Airport (KJZI)

Lat: 32.7°NLon: 80°WElev: 16ft.

66°F

19°C

Humidity 88%
Wind Speed N 10 mph
Barometer 30.18 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 29 Oct 3:15 am EDT
Extended Forecast for

Johns Island SC

Coastal Flood Advisory October 29, 08:00am until October 29, 12:00pm
Click here for hazard details and duration
Coastal Flood Advisory

  • Overnight

    Overnight: Partly cloudy, with a low around 63. Northeast wind around 9 mph.

    Low: 63 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 78. Northeast wind around 10 mph, with gusts as high as 20 mph.

    High: 78 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 60. Northeast wind around 6 mph.

    Low: 60 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 79. North wind 6 to 8 mph.

    High: 79 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 61. Calm wind becoming northeast around 5 mph after midnight.

    Low: 61 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 75.

    High: 75 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 61.

    Low: 61 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers after 2pm. Mostly cloudy, with a high near 74.

    High: 74 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Sunday Night

    Sunday Night: A 40 percent chance of showers, mainly after 8pm. Mostly cloudy, with a low around 62.

    Low: 62 °F

    Chance
    Showers

Detailed Forecast

Overnight
Partly cloudy, with a low around 63. Northeast wind around 9 mph.
Thursday
Mostly sunny, with a high near 78. Northeast wind around 10 mph, with gusts as high as 20 mph.
Thursday Night
Partly cloudy, with a low around 60. Northeast wind around 6 mph.
Friday
Sunny, with a high near 79. North wind 6 to 8 mph.
Friday Night
Partly cloudy, with a low around 61. Calm wind becoming northeast around 5 mph after midnight.
Saturday
Mostly cloudy, with a high near 75.
Saturday Night
Mostly cloudy, with a low around 61.
Sunday
A 20 percent chance of showers after 2pm. Mostly cloudy, with a high near 74.
Sunday Night
A 40 percent chance of showers, mainly after 8pm. Mostly cloudy, with a low around 62.
Monday
A 30 percent chance of showers. Mostly cloudy, with a high near 75.
Monday Night
Mostly cloudy, with a low around 61.
Tuesday
Partly sunny, with a high near 77.
Tuesday Night
Mostly cloudy, with a low around 62.
Wednesday
A 20 percent chance of showers. Mostly sunny, with a high near 77.
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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:
2:48 am EDT Oct 29, 2026
Forecast Valid:
3am EDT Oct 29, 2026-6pm EST Nov 4, 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