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.

A Few Clouds

77°F

25°C

Humidity 65%
Wind Speed SW 9 mph
Barometer 30.09 in
Dewpoint 64°F (18°C)
Visibility 9.00 mi
Heat Index79°F (26°C)
Last update 5 Apr 11:15 am EDT
Extended Forecast for

Harleyville SC

  • Today

    Today: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 3pm. Increasing clouds, with a high near 85. Southwest wind around 10 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 85 °F

    Showers
    Likely

  • Tonight

    Tonight: Showers and thunderstorms likely before 2am, then a slight chance of showers between 2am and 3am. Cloudy, with a low around 53. Calm wind becoming north around 6 mph after midnight. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 53 °F

    Showers
    Likely

  • Monday

    Monday: Mostly cloudy, with a high near 70. Northeast wind 8 to 11 mph, with gusts as high as 20 mph.

    High: 70 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 48. Calm wind.

    Low: 48 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 75. Light north wind becoming northeast 5 to 10 mph in the morning.

    High: 75 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 48.

    Low: 48 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 69.

    High: 69 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 49.

    Low: 49 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers. Mostly cloudy, with a high near 72.

    High: 72 °F

    Slight Chance
    Showers

Detailed Forecast

Today
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 3pm. Increasing clouds, with a high near 85. Southwest wind around 10 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms likely before 2am, then a slight chance of showers between 2am and 3am. Cloudy, with a low around 53. Calm wind becoming north around 6 mph after midnight. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
Mostly cloudy, with a high near 70. Northeast wind 8 to 11 mph, with gusts as high as 20 mph.
Monday Night
Mostly cloudy, with a low around 48. Calm wind.
Tuesday
Partly sunny, with a high near 75. Light north wind becoming northeast 5 to 10 mph in the morning.
Tuesday Night
Partly cloudy, with a low around 48.
Wednesday
Partly sunny, with a high near 69.
Wednesday Night
Mostly cloudy, with a low around 49.
Thursday
A 20 percent chance of showers. Mostly cloudy, with a high near 72.
Thursday Night
Partly cloudy, with a low around 52.
Friday
Mostly sunny, with a high near 79.
Friday Night
Mostly clear, with a low around 54.
Saturday
Sunny, with a high near 83.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Harleyville SC
 33.22°N 80.44°W (Elev. 85 ft)
Last Update:
8:31 am EDT Apr 5, 2026
Forecast Valid:
11am EDT Apr 5, 2026-6pm EDT Apr 11, 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