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.

A Few Clouds

93°F

34°C

Humidity 53%
Wind Speed Vrbl 5 G 15 mph
Barometer 30.01 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index103°F (39°C)
Last update 7 Jul 12:55 pm EDT
Extended Forecast for

3 Miles SSW Summerville SC

Heat Advisory July 8, 11:00am until July 8, 07:00pm
Click here for hazard details and duration
Heat Advisory

  • This Afternoon

    This Afternoon: Showers and thunderstorms likely, mainly before 4pm. Mostly sunny, with a high near 95. Heat index values as high as 107. Southwest wind around 7 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 95 °F

    T-storms
    Likely

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 77. South wind 5 to 7 mph.

    Low: 77 °F

    Chance
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms, mainly between 4pm and 5pm. Mostly sunny, with a high near 98. Heat index values as high as 110. West wind 5 to 8 mph.

    High: 98 °F

    Sunny then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 78. South wind 5 to 7 mph.

    Low: 78 °F

    Partly Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 97. Southwest wind 6 to 10 mph, with gusts as high as 20 mph.

    High: 97 °F

    Sunny then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 78.

    Low: 78 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 98.

    High: 98 °F

    Sunny

  • Friday Night

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

    Low: 78 °F

    Partly Cloudy

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 98.

    High: 98 °F

    Sunny then
    Slight Chance
    T-storms

Detailed Forecast

This Afternoon
Showers and thunderstorms likely, mainly before 4pm. Mostly sunny, with a high near 95. Heat index values as high as 107. Southwest wind around 7 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 77. South wind 5 to 7 mph.
Wednesday
A 30 percent chance of showers and thunderstorms, mainly between 4pm and 5pm. Mostly sunny, with a high near 98. Heat index values as high as 110. West wind 5 to 8 mph.
Wednesday Night
Partly cloudy, with a low around 78. South wind 5 to 7 mph.
Thursday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 97. Southwest wind 6 to 10 mph, with gusts as high as 20 mph.
Thursday Night
Mostly clear, with a low around 78.
Friday
Sunny, with a high near 98.
Friday Night
Partly cloudy, with a low around 78.
Saturday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 98.
Saturday Night
A 30 percent chance of showers and thunderstorms, mainly between 8pm and 2am. Partly cloudy, with a low around 76.
Sunday
Showers and thunderstorms likely. Mostly sunny, with a high near 96. Chance of precipitation is 60%.
Sunday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 74. Chance of precipitation is 60%.
Monday
Showers and thunderstorms likely. Partly sunny, with a high near 91. Chance of precipitation is 60%.
Monday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 72. Chance of precipitation is 60%.
Tuesday
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:
3 Miles SSW Summerville SC
 32.97°N 80.2°W (Elev. 39 ft)
Last Update:
2:35 pm EDT Jul 7, 2026
Forecast Valid:
3pm EDT Jul 7, 2026-6pm EDT Jul 14, 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