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.

Fair

77°F

25°C

Humidity 100%
Wind Speed Calm
Barometer 29.94 in
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 5 Sep 1:35 am EDT
Extended Forecast for

7 Miles ESE Cottageville SC

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

  • Overnight

    Overnight: Mostly clear, with a low around 75. Calm wind.

    Low: 75 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 95. Heat index values as high as 107. Light west wind.

    High: 95 °F

    Sunny

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms between 1am and 2am. Partly cloudy, with a low around 76. South wind 3 to 6 mph. Chance of precipitation is 20%.

    Low: 76 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Sunday

    Sunday: Showers and thunderstorms likely after 2pm. Some of the storms could produce heavy rainfall. Mostly sunny, with a high near 94. Heat index values as high as 106. Light southwest wind. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 94 °F

    Sunny then
    Heavy Rain

  • Sunday Night

    Sunday Night: Showers and thunderstorms likely before 8pm, then showers and possibly a thunderstorm between 8pm and 2am, then a chance of showers and thunderstorms after 2am. Some of the storms could produce heavy rainfall. Low around 73. Light and variable wind becoming northeast around 5 mph after midnight. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.

    Low: 73 °F

    Heavy Rain
    then Showers

  • Labor Day

    Labor Day: Showers likely, with thunderstorms also possible after 11am. Partly sunny, with a high near 86. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 86 °F

    Showers
    Likely

  • Monday Night

    Monday Night: A chance of thunderstorms before 8pm. Partly cloudy, with a low around 72. Chance of precipitation is 30%.

    Low: 72 °F

    Chance
    T-storms then
    Partly Cloudy

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after 2pm. Mostly sunny, with a high near 86. Chance of precipitation is 30%.

    High: 86 °F

    Chance
    Showers then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of thunderstorms before 8pm, then a slight chance of showers after 2am. Partly cloudy, with a low around 72. Chance of precipitation is 30%.

    Low: 72 °F

    Chance
    T-storms then
    Slight Chance
    Showers

Detailed Forecast

Overnight
Mostly clear, with a low around 75. Calm wind.
Saturday
Sunny, with a high near 95. Heat index values as high as 107. Light west wind.
Saturday Night
A slight chance of showers and thunderstorms between 1am and 2am. Partly cloudy, with a low around 76. South wind 3 to 6 mph. Chance of precipitation is 20%.
Sunday
Showers and thunderstorms likely after 2pm. Some of the storms could produce heavy rainfall. Mostly sunny, with a high near 94. Heat index values as high as 106. Light southwest 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 before 8pm, then showers and possibly a thunderstorm between 8pm and 2am, then a chance of showers and thunderstorms after 2am. Some of the storms could produce heavy rainfall. Low around 73. Light and variable wind becoming northeast around 5 mph after midnight. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.
Labor Day
Showers likely, with thunderstorms also possible after 11am. Partly sunny, with a high near 86. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Monday Night
A chance of thunderstorms before 8pm. Partly cloudy, with a low around 72. Chance of precipitation is 30%.
Tuesday
A chance of showers, with thunderstorms also possible after 2pm. Mostly sunny, with a high near 86. Chance of precipitation is 30%.
Tuesday Night
A chance of thunderstorms before 8pm, then a slight chance of showers after 2am. Partly cloudy, with a low around 72. Chance of precipitation is 30%.
Wednesday
A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88. Chance of precipitation is 30%.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Mostly clear, with a low around 71.
Thursday
Sunny, with a high near 91.
Thursday Night
Mostly clear, with a low around 73.
Friday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 94.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
7 Miles ESE Cottageville SC
 32.9°N 80.37°W (Elev. 30 ft)
Last Update:
8:32 pm EDT Sep 4, 2026
Forecast Valid:
1am EDT Sep 5, 2026-6pm EDT Sep 11, 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