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.

Fair

24°C

75°F

Humidity 94%
Wind Speed Calm
Barometer 30.08 in
Dewpoint 23°C (73°F)
Visibility 16 km
Last update 21 May 7:35 am EDT
Extended Forecast for

Charleston SC

  • Today

    Today: Areas of fog before 8am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 31. Light and variable wind becoming south 18 to 23 km/h in the afternoon.

    High: 31 °C

    Areas Fog
    then Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 21. South wind 16 to 21 km/h becoming light after midnight.

    Low: 21 °C

    Increasing
    Clouds

  • Friday

    Friday: A slight chance of showers between 10am and 11am. Mostly sunny, with a high near 31. Light south wind increasing to 13 to 18 km/h in the morning. Chance of precipitation is 20%.

    High: 31 °C

    Slight Chance
    Showers then
    Mostly Sunny

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms between 2am and 5am, then a slight chance of showers after 5am. Mostly cloudy, with a low around 24. South wind 8 to 13 km/h. Chance of precipitation is 20%.

    Low: 24 °C

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after 11am. Partly sunny, with a high near 31. South wind 8 to 16 km/h. Chance of precipitation is 50%. New rainfall amounts of less than 1 mm, except higher amounts possible in thunderstorms.

    High: 31 °C

    Chance
    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A slight chance of thunderstorms before 8pm, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 24. Chance of precipitation is 30%.

    Low: 24 °C

    Mostly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 31.

    High: 31 °C

    Chance
    T-storms

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 24.

    Low: 24 °C

    Mostly Cloudy

  • Memorial Day

    Memorial Day: A 20 percent chance of showers and thunderstorms before 2pm. Mostly sunny, with a high near 31.

    High: 31 °C

    Slight Chance
    T-storms

Detailed Forecast

Today
Areas of fog before 8am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 31. Light and variable wind becoming south 18 to 23 km/h in the afternoon.
Tonight
Increasing clouds, with a low around 21. South wind 16 to 21 km/h becoming light after midnight.
Friday
A slight chance of showers between 10am and 11am. Mostly sunny, with a high near 31. Light south wind increasing to 13 to 18 km/h in the morning. Chance of precipitation is 20%.
Friday Night
A slight chance of showers and thunderstorms between 2am and 5am, then a slight chance of showers after 5am. Mostly cloudy, with a low around 24. South wind 8 to 13 km/h. Chance of precipitation is 20%.
Saturday
A chance of showers, with thunderstorms also possible after 11am. Partly sunny, with a high near 31. South wind 8 to 16 km/h. Chance of precipitation is 50%. New rainfall amounts of less than 1 mm, except higher amounts possible in thunderstorms.
Saturday Night
A slight chance of thunderstorms before 8pm, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 24. Chance of precipitation is 30%.
Sunday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 31.
Sunday Night
Mostly cloudy, with a low around 24.
Memorial Day
A 20 percent chance of showers and thunderstorms before 2pm. Mostly sunny, with a high near 31.
Monday Night
Partly cloudy, with a low around 24.
Tuesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 31.
Tuesday Night
Partly cloudy, with a low around 23.
Wednesday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 32.
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ABOUT THIS FORECAST

 
Point Forecast:
Charleston SC
 32.79°N 80.01°W (Elev. 10 m)
Last Update:
2:40 am EDT May 21, 2026
Forecast Valid:
7am EDT May 21, 2026-6pm EDT May 27, 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