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

Hazardous Weather Conditions

Current conditions at

Summerville Airport (KDYB)

Lat: 33.06°NLon: 80.28°WElev: 56ft.

Mostly Cloudy

91°F

33°C

Humidity 59%
Wind Speed Calm
Barometer 29.98 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index102°F (39°C)
Last update 4 Sep 1:55 pm EDT
Extended Forecast for

2 Miles NW Ladson SC

Heat Advisory September 5, 11:00am until September 5, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91. Heat index values as high as 103. South wind around 7 mph.

    High: 91 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Mostly clear, with a low around 74. South wind around 5 mph becoming calm in the evening.

    Low: 74 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 94. Heat index values as high as 107. Light west wind.

    High: 94 °F

    Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 75. South wind around 6 mph becoming calm in the evening.

    Low: 75 °F

    Chance
    T-storms

  • Sunday

    Sunday: Showers and thunderstorms likely after 2pm. Mostly sunny, with a high near 91. Light and variable wind. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 91 °F

    Mostly Sunny
    then T-storms
    Likely

  • Sunday Night

    Sunday Night: Showers and thunderstorms likely, mainly before 2am. Mostly cloudy, with a low around 72. Chance of precipitation is 70%. New rainfall amounts between 1 and 2 inches possible.

    Low: 72 °F

    T-storms
    Likely

  • Labor Day

    Labor Day: A 50 percent chance of showers and thunderstorms, mainly after 8am. Partly sunny, with a high near 85.

    High: 85 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: Partly cloudy, with a low around 71.

    Low: 71 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91. Heat index values as high as 103. South wind around 7 mph.
Tonight
Mostly clear, with a low around 74. South wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 94. Heat index values as high as 107. Light west wind.
Saturday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 75. South wind around 6 mph becoming calm in the evening.
Sunday
Showers and thunderstorms likely after 2pm. Mostly sunny, with a high near 91. Light and variable wind. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday Night
Showers and thunderstorms likely, mainly before 2am. Mostly cloudy, with a low around 72. Chance of precipitation is 70%. New rainfall amounts between 1 and 2 inches possible.
Labor Day
A 50 percent chance of showers and thunderstorms, mainly after 8am. Partly sunny, with a high near 85.
Monday Night
Partly cloudy, with a low around 71.
Tuesday
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 85.
Tuesday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 71.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.
Wednesday Night
Mostly clear, with a low around 71.
Thursday
Sunny, with a high near 91.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NW Ladson SC
 33.03°N 80.14°W (Elev. 69 ft)
Last Update:
8:32 am EDT Sep 4, 2026
Forecast Valid:
2pm EDT Sep 4, 2026-6pm EDT Sep 10, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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