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

Summerville Airport (KDYB)

Lat: 33.06°NLon: 80.28°WElev: 56ft.

Mostly Cloudy

77°F

25°C

Humidity 94%
Wind Speed Calm
Barometer 30.10 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 26 Jun 11:55 pm EDT
Extended Forecast for

3 Miles SW Summerville SC

  • Overnight

    Overnight: A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 75. South wind 3 to 5 mph.

    Low: 75 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: Sunny, with a high near 94. Heat index values as high as 102. Southwest wind 5 to 7 mph.

    High: 94 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 76. Southwest wind 5 to 7 mph.

    Low: 76 °F

    Mostly Clear

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 97. Heat index values as high as 105. West wind 5 to 7 mph.

    High: 97 °F

    Sunny then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 5am, then a slight chance of showers. Partly cloudy, with a low around 76. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.

    Low: 76 °F

    Chance
    T-storms

  • Monday

    Monday: A slight chance of showers, then showers and thunderstorms likely after 11am. Mostly sunny, with a high near 95. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 95 °F

    Slight Chance
    T-storms then
    T-storms
    Likely

  • Monday Night

    Monday Night: Showers and thunderstorms likely, mainly before 8pm. Partly cloudy, with a low around 74. Chance of precipitation is 60%.

    Low: 74 °F

    T-storms
    Likely then
    Slight Chance
    T-storms

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 8am. Mostly sunny, with a high near 92.

    High: 92 °F

    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 73.

    Low: 73 °F

    Mostly Clear

Detailed Forecast

Overnight
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 75. South wind 3 to 5 mph.
Saturday
Sunny, with a high near 94. Heat index values as high as 102. Southwest wind 5 to 7 mph.
Saturday Night
Mostly clear, with a low around 76. Southwest wind 5 to 7 mph.
Sunday
A 40 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 97. Heat index values as high as 105. West wind 5 to 7 mph.
Sunday Night
A chance of showers and thunderstorms before 5am, then a slight chance of showers. Partly cloudy, with a low around 76. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Monday
A slight chance of showers, then showers and thunderstorms likely after 11am. Mostly sunny, with a high near 95. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night
Showers and thunderstorms likely, mainly before 8pm. Partly cloudy, with a low around 74. Chance of precipitation is 60%.
Tuesday
A 20 percent chance of showers and thunderstorms after 8am. Mostly sunny, with a high near 92.
Tuesday Night
Mostly clear, with a low around 73.
Wednesday
Sunny, with a high near 91.
Wednesday Night
Mostly clear, with a low around 73.
Thursday
Sunny, with a high near 92.
Thursday Night
Mostly clear, with a low around 75.
Friday
Sunny, with a high near 96.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Summerville SC
 32.97°N 80.23°W (Elev. 52 ft)
Last Update:
8:30 pm EDT Jun 26, 2026
Forecast Valid:
12am EDT Jun 27, 2026-6pm EDT Jul 3, 2026
 
Forecast Discussion
 
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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation