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

Mount Pleasant Regional-Faison Field (KLRO)

Lat: 32.9°NLon: 79.78°WElev: 13ft.

Fair

84°F

29°C

Humidity 79%
Wind Speed Vrbl 5 mph
Barometer 30.05 in
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index94°F (34°C)
Last update 25 Jun 6:35 pm EDT
Extended Forecast for

Sullivan's Island SC

  • Tonight

    Tonight: Mostly clear, with a low around 77. Southeast wind 5 to 9 mph becoming light south after midnight.

    Low: 77 °F

    Mostly Clear

  • Friday

    Friday: A slight chance of showers and thunderstorms between 11am and 2pm. Sunny, with a high near 90. Heat index values as high as 103. Light south wind increasing to 9 to 14 mph in the morning. Chance of precipitation is 20%.

    High: 90 °F

    Slight Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 4am, then a slight chance of showers and thunderstorms after 5am. Partly cloudy, with a low around 79. South wind 9 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.

    Low: 79 °F

    Mostly Clear
    then Chance
    T-storms

  • Saturday

    Saturday: A chance of showers and thunderstorms before 8am, then a slight chance of showers and thunderstorms after 2pm. Sunny, with a high near 92. Heat index values as high as 108. Southwest wind 8 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.

    High: 92 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 79. Southwest wind 9 to 11 mph, with gusts as high as 21 mph.

    Low: 79 °F

    Mostly Clear

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 95.

    High: 95 °F

    Mostly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A 40 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 78.

    Low: 78 °F

    Chance
    T-storms

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 89.

    High: 89 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 77.

    Low: 77 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Mostly clear, with a low around 77. Southeast wind 5 to 9 mph becoming light south after midnight.
Friday
A slight chance of showers and thunderstorms between 11am and 2pm. Sunny, with a high near 90. Heat index values as high as 103. Light south wind increasing to 9 to 14 mph in the morning. Chance of precipitation is 20%.
Friday Night
A chance of showers and thunderstorms before 4am, then a slight chance of showers and thunderstorms after 5am. Partly cloudy, with a low around 79. South wind 9 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
Saturday
A chance of showers and thunderstorms before 8am, then a slight chance of showers and thunderstorms after 2pm. Sunny, with a high near 92. Heat index values as high as 108. Southwest wind 8 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.
Saturday Night
Mostly clear, with a low around 79. Southwest wind 9 to 11 mph, with gusts as high as 21 mph.
Sunday
A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 95.
Sunday Night
A 40 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 78.
Monday
A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 89.
Monday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 77.
Tuesday
Sunny, with a high near 87.
Tuesday Night
Mostly clear, with a low around 77.
Wednesday
Sunny, with a high near 88.
Wednesday Night
Mostly clear, with a low around 78.
Thursday
Mostly sunny, with a high near 88.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sullivan's Island SC
 32.78°N 79.85°W (Elev. 3 ft)
Last Update:
2:40 pm EDT Jun 25, 2026
Forecast Valid:
6pm EDT Jun 25, 2026-6pm EDT Jul 2, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation