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

50°F

10°C

Humidity 37%
Wind Speed W 5 mph
Barometer 30.02 in
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 31 Dec 5:15 pm EST
Extended Forecast for

Johns Island SC

  • Tonight

    Tonight: Mostly clear, with a low around 38. West wind 6 to 9 mph, with gusts as high as 26 mph.

    Low: 38 °F

    Mostly Clear

  • New Year's Day

    New Year's Day: Sunny, with a high near 60. West wind 8 to 10 mph, with gusts as high as 20 mph.

    High: 60 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 43. West wind around 6 mph.

    Low: 43 °F

    Mostly Clear

  • Friday

    Friday: Mostly cloudy, with a high near 62. Southwest wind 5 to 7 mph.

    High: 62 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 50. Southwest wind 3 to 5 mph.

    Low: 50 °F

    Mostly Cloudy
    then Chance
    Showers

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm before 10am, then showers likely between 10am and 1pm, then showers and possibly a thunderstorm after 1pm. High near 65. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 65 °F

    Showers
    Likely then
    Showers

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm before 1am, then a slight chance of showers. Low around 46. Chance of precipitation is 80%.

    Low: 46 °F

    Showers

  • Sunday

    Sunday: Mostly sunny, with a high near 58.

    High: 58 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 38. West wind 6 to 9 mph, with gusts as high as 26 mph.
New Year's Day
Sunny, with a high near 60. West wind 8 to 10 mph, with gusts as high as 20 mph.
Thursday Night
Mostly clear, with a low around 43. West wind around 6 mph.
Friday
Mostly cloudy, with a high near 62. Southwest wind 5 to 7 mph.
Friday Night
A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 50. Southwest wind 3 to 5 mph.
Saturday
Showers likely and possibly a thunderstorm before 10am, then showers likely between 10am and 1pm, then showers and possibly a thunderstorm after 1pm. High near 65. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
Showers and possibly a thunderstorm before 1am, then a slight chance of showers. Low around 46. Chance of precipitation is 80%.
Sunday
Mostly sunny, with a high near 58.
Sunday Night
Partly cloudy, with a low around 41.
Monday
Mostly sunny, with a high near 59.
Monday Night
Partly cloudy, with a low around 44.
Tuesday
Mostly sunny, with a high near 63.
Tuesday Night
Partly cloudy, with a low around 49.
Wednesday
Partly sunny, with a high near 66.
Basemap Options
Click map to change the forecast location
Loading map...
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 Dec 31, 2025
Forecast Valid:
5pm EST Dec 31, 2025-6pm EST Jan 7, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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