Current conditions at

Summerville Airport (KDYB)

Lat: 33.06°NLon: 80.28°WElev: 56ft.

Fair

91°F

33°C

Humidity 63%
Wind Speed Calm
Barometer 30.09 in
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index104°F (40°C)
Last update 14 Aug 12:35 pm EDT
Extended Forecast for

2 Miles WNW Summerville SC

Heat Advisory August 15, 11:00am until August 15, 08:00pm
Heat Advisory August 14, 12:50pm until August 14, 08:00pm
Click here for hazard details and duration
Heat Advisory
Heat Advisory
  •  
    Heat Advisory August 14, 12:50pm until August 14, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • This Afternoon

    High: 97 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 10pm.  Partly cloudy, with a low around 77. Southwest wind 3 to 6 mph.

    Low: 77 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after 2pm.  Increasing clouds, with a high near 99. Heat index values as high as 111. West wind 3 to 5 mph.

    High: 99 °F

    Sunny then
    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms before 2am.  Partly cloudy, with a low around 77. Southwest wind around 5 mph becoming calm  in the evening.

    Low: 77 °F

    Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 97. Light southwest wind.

    High: 97 °F

    Mostly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms before 8pm.  Partly cloudy, with a low around 78.

    Low: 78 °F

    Chance
    T-storms then
    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 101.

    High: 101 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 80.

    Low: 80 °F

    Mostly Clear

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 97. Heat index values as high as 110. West wind around 6 mph.
Tonight
A 20 percent chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 77. Southwest wind 3 to 6 mph.
Saturday
A 20 percent chance of showers and thunderstorms after 2pm. Increasing clouds, with a high near 99. Heat index values as high as 111. West wind 3 to 5 mph.
Saturday Night
A 30 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 77. Southwest wind around 5 mph becoming calm in the evening.
Sunday
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 97. Light southwest wind.
Sunday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 78.
Monday
Sunny and hot, with a high near 101.
Monday Night
Mostly clear, with a low around 80.
Tuesday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 101.
Tuesday Night
A 30 percent chance of showers and thunderstorms, mainly between 8pm and 2am. Partly cloudy, with a low around 78.
Wednesday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 96.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 77.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 97.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WNW Summerville SC
 33.02°N 80.19°W (Elev. 75 ft)
8:30 am EDT Aug 14, 2026
12pm EDT Aug 14, 2026-6pm EDT Aug 20, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database