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

84°F

29°C

Humidity 66%
Wind Speed Calm
Barometer 30.05 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 27 Jun 7:15 pm EDT
Extended Forecast for

5 Miles WNW Harleyville SC

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 72. South wind 5 to 7 mph becoming calm in the evening.

    Low: 72 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms, mainly after 5pm. Sunny, with a high near 95. Heat index values as high as 101. Calm wind.

    High: 95 °F

    Sunny then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 73. Calm wind.

    Low: 73 °F

    Chance
    T-storms

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 95. Heat index values as high as 102. Light west wind.

    High: 95 °F

    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 74. Light southwest wind.

    Low: 74 °F

    Chance
    T-storms then
    Mostly Clear

  • Monday

    Monday: 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

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 73.

    Low: 73 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 93.

    High: 93 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 73.

    Low: 73 °F

    Chance
    T-storms

Detailed Forecast

Tonight
A 20 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 72. South wind 5 to 7 mph becoming calm in the evening.
Saturday
A 30 percent chance of showers and thunderstorms, mainly after 5pm. Sunny, with a high near 95. Heat index values as high as 101. Calm wind.
Saturday Night
A 30 percent chance of showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 73. Calm wind.
Sunday
A 30 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 95. Heat index values as high as 102. Light west wind.
Sunday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 74. Light southwest wind.
Monday
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 94.
Monday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 73.
Tuesday
A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 93.
Tuesday Night
A 40 percent chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 73.
Wednesday
Showers and thunderstorms likely, mainly after 2pm. Partly sunny, with a high near 90. Chance of precipitation is 70%.
Wednesday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 72. Chance of precipitation is 60%.
Thursday
Showers and thunderstorms likely. Partly sunny, with a high near 90. Chance of precipitation is 60%.
Thursday Night
Showers and thunderstorms likely. Partly cloudy, with a low around 72. Chance of precipitation is 60%.
Independence Day
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles WNW Harleyville SC
 33.25°N 80.52°W (Elev. 85 ft)
Last Update:
5:56 pm EDT Jun 27, 2025
Forecast Valid:
7pm EDT Jun 27, 2025-6pm EDT Jul 4, 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