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

Tropical Storm Arthur and Heavy Rainfall in the South; Severe Weather in the Midwest

An outbreak of severe thunderstorms is expected across portions of Illinois and Indiana tonight. Intense tornadoes, swaths of damaging gusts, and hail in excess of 2 inches in diameter possible. Tropical Storm Arthur will continue to produce strong winds across coastal Upper Texas and Louisiana tonight, as well as potentially life-threatening flooding across southern Louisiana into Mississippi. Read More >

Current conditions at

Charleston Executive Airport (KJZI)

Lat: 32.7°NLon: 80°WElev: 16ft.

Fair

79°F

26°C

Humidity 94%
Wind Speed SW 7 mph
Barometer 29.97 in
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 18 Jun 2:55 am EDT
Extended Forecast for

2 Miles ENE Charleston SC

  • Overnight

    Overnight: Clear, with a low around 79. Southwest wind around 8 mph.

    Low: 79 °F

    Clear

  • Thursday

    Thursday: A 40 percent chance of showers, mainly after 2pm. Increasing clouds, with a high near 93. Heat index values as high as 106. Southwest wind 10 to 16 mph, with gusts as high as 23 mph.

    High: 93 °F

    Sunny then
    Chance
    Showers

  • Thursday Night

    Thursday Night: A 40 percent chance of showers, mainly after 1am. Increasing clouds, with a low around 78. Southwest wind 10 to 13 mph, with gusts as high as 22 mph.

    Low: 78 °F

    Chance
    Showers

  • Juneteenth

    Juneteenth: Showers and thunderstorms before 3pm, then a chance of showers. High near 88. Breezy, with a southwest wind 16 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 88 °F

    T-storms and
    Breezy

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms, mainly before 7pm. Mostly cloudy, with a low around 75. West wind 6 to 9 mph.

    Low: 75 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Saturday

    Saturday: Partly sunny, with a high near 91.

    High: 91 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 75.

    Low: 75 °F

    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 91.

    High: 91 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 77.

    Low: 77 °F

    Slight Chance
    T-storms

Detailed Forecast

Overnight
Clear, with a low around 79. Southwest wind around 8 mph.
Thursday
A 40 percent chance of showers, mainly after 2pm. Increasing clouds, with a high near 93. Heat index values as high as 106. Southwest wind 10 to 16 mph, with gusts as high as 23 mph.
Thursday Night
A 40 percent chance of showers, mainly after 1am. Increasing clouds, with a low around 78. Southwest wind 10 to 13 mph, with gusts as high as 22 mph.
Juneteenth
Showers and thunderstorms before 3pm, then a chance of showers. High near 88. Breezy, with a southwest wind 16 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
A 30 percent chance of showers and thunderstorms, mainly before 7pm. Mostly cloudy, with a low around 75. West wind 6 to 9 mph.
Saturday
Partly sunny, with a high near 91.
Saturday Night
Partly cloudy, with a low around 75.
Sunday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 91.
Sunday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 77.
Monday
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 93.
Monday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 77.
Tuesday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 76.
Wednesday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ENE Charleston SC
 32.79°N 79.95°W (Elev. 3 ft)
Last Update:
2:40 am EDT Jun 18, 2026
Forecast Valid:
3am EDT Jun 18, 2026-6pm EDT Jun 24, 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