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

Flash Flooding Continuing Along the Gulf Coast; Dry Thunderstorms in the West

Excessive rainfall continues to produce life-threatening, locally catastrophic flash flooding along the central Gulf Coast. Isolated to scattered dry thunderstorms may cause lightning-ignited fires and erratic behavior due to gusty winds across parts Oregon, California, and the Great Basin into the weekend. Read More >

Current conditions at

Charleston Executive Airport (KJZI)

Lat: 32.7°NLon: 80°WElev: 16ft.

82°F

28°C

Humidity 74%
Wind Speed SW 15 G 24 mph
Barometer 29.94 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 19 Jun 1:55 pm EDT
Extended Forecast for

4 Miles WSW Sullivans Island SC

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 90. Heat index values as high as 103. West wind around 18 mph, with gusts as high as 26 mph.

    High: 90 °F

    Mostly Sunny

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 76. Southwest wind 6 to 9 mph becoming northwest after midnight.

    Low: 76 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: Mostly sunny, with a high near 87. North wind around 8 mph becoming east in the afternoon.

    High: 87 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 76. South wind around 5 mph becoming calm in the evening.

    Low: 76 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 88. Light south wind becoming southeast 6 to 11 mph in the afternoon.

    High: 88 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 78.

    Low: 78 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 91.

    High: 91 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 80.

    Low: 80 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 94.

    High: 94 °F

    Sunny then
    Chance
    T-storms

Detailed Forecast

Juneteenth
Mostly sunny, with a high near 90. Heat index values as high as 103. West wind around 18 mph, with gusts as high as 26 mph.
Tonight
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 76. Southwest wind 6 to 9 mph becoming northwest after midnight.
Saturday
Mostly sunny, with a high near 87. North wind around 8 mph becoming east in the afternoon.
Saturday Night
Partly cloudy, with a low around 76. South wind around 5 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 88. Light south wind becoming southeast 6 to 11 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 78.
Monday
Mostly sunny, with a high near 91.
Monday Night
Partly cloudy, with a low around 80.
Tuesday
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 94.
Tuesday Night
A 30 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 78.
Wednesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
Wednesday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 77.
Thursday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WSW Sullivans Island SC
 32.74°N 79.91°W (Elev. 3 ft)
Last Update:
8:31 am EDT Jun 19, 2026
Forecast Valid:
2pm EDT Jun 19, 2026-6pm EDT Jun 25, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation