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

Hazardous Weather Conditions

Current conditions at

Mount Pleasant Regional-Faison Field (KLRO)

Lat: 32.9°NLon: 79.78°WElev: 13ft.

Fair

84°F

29°C

Humidity 100%
Wind Speed S 8 mph
Barometer 29.99 in
Dewpoint 84°F (29°C)
Visibility 8.00 mi
Heat Index103°F (39°C)
Last update 8 Jul 7:55 pm EDT
Extended Forecast for

Sullivan's Island SC

Extreme Heat Warning July 9, 11:00am until July 9, 07:00pm
Click here for hazard details and duration
Extreme Heat Warning

  • Tonight

    Tonight: Mostly clear, with a low around 82. Southwest wind 11 to 14 mph, with gusts as high as 22 mph.

    Low: 82 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 92. Heat index values as high as 109. West wind 9 to 18 mph.

    High: 92 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 83. Southwest wind 11 to 16 mph, with gusts as high as 24 mph.

    Low: 83 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 92. Heat index values as high as 106. Southwest wind 9 to 18 mph, with gusts as high as 25 mph.

    High: 92 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 82. Southwest wind 11 to 16 mph, with gusts as high as 25 mph.

    Low: 82 °F

    Partly Cloudy

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 92.

    High: 92 °F

    Sunny then
    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms, mainly between 8pm and 2am. Mostly cloudy, with a low around 79.

    Low: 79 °F

    Chance
    T-storms

  • Sunday

    Sunday: Showers and thunderstorms likely, mainly after 2pm. Partly sunny, with a high near 89. Chance of precipitation is 60%.

    High: 89 °F

    Slight Chance
    T-storms then
    T-storms
    Likely

  • Sunday Night

    Sunday Night: Showers and thunderstorms likely before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 76. Chance of precipitation is 70%.

    Low: 76 °F

    T-storms
    Likely then
    Showers
    Likely

Detailed Forecast

Tonight
Mostly clear, with a low around 82. Southwest wind 11 to 14 mph, with gusts as high as 22 mph.
Thursday
Sunny, with a high near 92. Heat index values as high as 109. West wind 9 to 18 mph.
Thursday Night
Mostly clear, with a low around 83. Southwest wind 11 to 16 mph, with gusts as high as 24 mph.
Friday
Sunny, with a high near 92. Heat index values as high as 106. Southwest wind 9 to 18 mph, with gusts as high as 25 mph.
Friday Night
Partly cloudy, with a low around 82. Southwest wind 11 to 16 mph, with gusts as high as 25 mph.
Saturday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 92.
Saturday Night
A 40 percent chance of showers and thunderstorms, mainly between 8pm and 2am. Mostly cloudy, with a low around 79.
Sunday
Showers and thunderstorms likely, mainly after 2pm. Partly sunny, with a high near 89. Chance of precipitation is 60%.
Sunday Night
Showers and thunderstorms likely before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 76. Chance of precipitation is 70%.
Monday
A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and 2pm, then showers and thunderstorms likely after 2pm. Mostly cloudy, with a high near 84. Chance of precipitation is 70%.
Monday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 76. Chance of precipitation is 60%.
Tuesday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 85.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 77.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sullivan's Island SC
 32.76°N 79.85°W (Elev. 0 ft)
Last Update:
2:35 pm EDT Jul 8, 2026
Forecast Valid:
8pm EDT Jul 8, 2026-6pm EDT Jul 15, 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