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.

Partly Cloudy

90°F

32°C

Humidity 71%
Wind Speed Calm
Barometer 29.98 in
Dewpoint 79°F (26°C)
Visibility 10.00 mi
Heat Index107°F (42°C)
Last update 16 Jun 4:35 pm EDT
Extended Forecast for

Summerville SC

  • This Afternoon

    This Afternoon: A 30 percent chance of showers and thunderstorms. Sunny, with a high near 91. Heat index values as high as 102. Southwest wind around 9 mph.

    High: 91 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 9pm. Partly cloudy, with a low around 75. Southwest wind 5 to 7 mph.

    Low: 75 °F

    Chance
    T-storms then
    Partly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms. Sunny, with a high near 93. Heat index values as high as 103. Southwest wind 6 to 10 mph.

    High: 93 °F

    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 76. South wind 6 to 8 mph.

    Low: 76 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 93. Southwest wind 6 to 9 mph.

    High: 93 °F

    Sunny then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 76.

    Low: 76 °F

    Partly Cloudy

  • Juneteenth

    Juneteenth: A 30 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 93.

    High: 93 °F

    Sunny then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 75.

    Low: 75 °F

    Chance
    T-storms

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 94.

    High: 94 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms. Sunny, with a high near 91. Heat index values as high as 102. Southwest wind around 9 mph.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 9pm. Partly cloudy, with a low around 75. Southwest wind 5 to 7 mph.
Tuesday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 93. Heat index values as high as 103. Southwest wind 6 to 10 mph.
Tuesday Night
Mostly clear, with a low around 76. South wind 6 to 8 mph.
Wednesday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 93. Southwest wind 6 to 9 mph.
Wednesday Night
Partly cloudy, with a low around 76.
Juneteenth
A 30 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 93.
Thursday Night
A 30 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 75.
Friday
A 50 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 94.
Friday Night
A 30 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 74.
Saturday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.
Saturday Night
A chance of thunderstorms. Mostly clear, with a low around 75. Chance of precipitation is 30%.
Sunday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.
Sunday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74.
Monday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 95.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Summerville SC
 32.99°N 80.17°W (Elev. 75 ft)
Last Update:
1:57 pm EDT Jun 16, 2025
Forecast Valid:
4pm EDT Jun 16, 2025-6pm EDT Jun 23, 2025
 
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