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Hazardous Weather Conditions

Current conditions at

Summerville Airport (KDYB)

Lat: 33.06°NLon: 80.28°WElev: 56ft.

Mostly Cloudy

73°F

23°C

Humidity 100%
Wind Speed Vrbl 5 G 12 mph
Barometer 30.02 in
Dewpoint 73°F (23°C)
Visibility 9.00 mi
Last update 10 Oct 9:55 am EDT
Extended Forecast for

Harleyville SC

Flood Watch October 10, 10:18am until October 11, 02:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch October 10, 10:18am until October 11, 02:00am

    NOW until 2:00am Sun

    Flood Watch

  • Today

    High: 80 °F

    Heavy Rain

  • Tonight

    Tonight: Showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 2am, then a chance of showers and thunderstorms after 2am. Low around 72. East wind 5 to 8 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 72 °F

    Showers

  • Sunday

    Sunday: A chance of showers and thunderstorms before 1pm, then a chance of showers between 1pm and 2pm. Partly sunny, with a high near 82. Southwest wind 7 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 40%.

    High: 82 °F

    Chance
    T-storms then
    Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 62. West wind around 7 mph.

    Low: 62 °F

    Mostly Clear

  • Columbus Day

    Columbus Day: Sunny, with a high near 85. Northwest wind 6 to 9 mph.

    High: 85 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 62.

    Low: 62 °F

    Clear

Detailed Forecast

Today
Showers and possibly a thunderstorm, mainly before 5pm, then a chance of showers and thunderstorms after 5pm. Some of the storms could produce heavy rainfall. High near 80. East wind around 11 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Tonight
Showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 2am, then a chance of showers and thunderstorms after 2am. Low around 72. East wind 5 to 8 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
A chance of showers and thunderstorms before 1pm, then a chance of showers between 1pm and 2pm. Partly sunny, with a high near 82. Southwest wind 7 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 40%.
Sunday Night
Mostly clear, with a low around 62. West wind around 7 mph.
Columbus Day
Sunny, with a high near 85. Northwest wind 6 to 9 mph.
Monday Night
Mostly clear, with a low around 60.
Tuesday
Sunny, with a high near 88.
Tuesday Night
Clear, with a low around 62.
Wednesday
Sunny, with a high near 89.
Wednesday Night
Clear, with a low around 62.
Thursday
Sunny, with a high near 84.
Thursday Night
Mostly clear, with a low around 60.
Friday
Sunny, with a high near 83.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Harleyville SC
 33.22°N 80.44°W (Elev. 85 ft)
Last Update:
8:30 am EDT Oct 10, 2026
Forecast Valid:
10am EDT Oct 10, 2026-6pm EDT Oct 16, 2026
 
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