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.

Fair

90°F

32°C

Humidity 46%
Wind Speed NW 8 mph
Barometer 29.82 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index93°F (34°C)
Last update 15 Jun 4:15 pm EDT
Extended Forecast for

Summerville SC

  • Tonight

    Tonight: Mostly cloudy, with a low around 72. West wind 5 to 7 mph becoming calm in the evening.

    Low: 72 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 85. Calm wind becoming southwest 5 to 7 mph in the afternoon. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 85 °F

    Chance
    Showers then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 2am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 69. Southwest wind around 7 mph. Chance of precipitation is 40%.

    Low: 69 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm, mainly before 2pm, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 87. West wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 87 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 73. Southwest wind around 7 mph.

    Low: 73 °F

    Chance
    T-storms then
    Partly Cloudy

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 94.

    High: 94 °F

    Mostly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 75. Chance of precipitation is 40%.

    Low: 75 °F

    Chance
    T-storms

  • Juneteenth

    Juneteenth: A slight chance of showers, then showers and thunderstorms likely after 8am. Mostly cloudy, with a high near 91. Chance of precipitation is 60%.

    High: 91 °F

    Slight Chance
    T-storms then
    T-storms
    Likely

  • Friday Night

    Friday Night: Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 72. Chance of precipitation is 60%.

    Low: 72 °F

    T-storms
    Likely

Detailed Forecast

Tonight
Mostly cloudy, with a low around 72. West wind 5 to 7 mph becoming calm in the evening.
Tuesday
A chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 85. Calm wind becoming southwest 5 to 7 mph in the afternoon. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
A chance of showers and thunderstorms before 2am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 69. Southwest wind around 7 mph. Chance of precipitation is 40%.
Wednesday
Showers likely and possibly a thunderstorm, mainly before 2pm, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 87. West wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 73. Southwest wind around 7 mph.
Thursday
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 94.
Thursday Night
A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 75. Chance of precipitation is 40%.
Juneteenth
A slight chance of showers, then showers and thunderstorms likely after 8am. Mostly cloudy, with a high near 91. Chance of precipitation is 60%.
Friday Night
Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 72. Chance of precipitation is 60%.
Saturday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 88.
Saturday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69.
Sunday
Mostly sunny, with a high near 92.
Sunday Night
Partly cloudy, with a low around 72.
Monday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Summerville SC
 32.99°N 80.17°W (Elev. 75 ft)
Last Update:
2:35 pm EDT Jun 15, 2026
Forecast Valid:
4pm EDT Jun 15, 2026-6pm EDT Jun 22, 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