Current conditions at

Summerville Airport (KDYB)

Lat: 33.06°NLon: 80.28°WElev: 56ft.

Overcast

75°F

24°C

Humidity 100%
Wind Speed Calm
Barometer 30.08 in
Dewpoint 75°F (24°C)
Visibility 8.00 mi
Last update 4 Oct 12:15 am EDT
Extended Forecast for

Harleyville SC

  • Overnight

    Overnight: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 71. Calm wind.  Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 71 °F

    Chance
    Showers

  • Sunday

    Sunday: A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 1pm, then showers likely and possibly a thunderstorm after 1pm.  Mostly cloudy, with a high near 83. Calm wind.  Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 83 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: Showers and thunderstorms before 1am, then showers and possibly a thunderstorm, mainly after 1am.  Low around 69. Calm wind.  Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    Low: 69 °F

    Showers

  • Monday

    Monday: Showers, mainly before 2pm.  High near 76. Calm wind becoming northeast around 6 mph in the afternoon.  Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 76 °F

    Showers

  • Monday Night

    Monday Night: A chance of showers before 8pm, then a slight chance of showers after 2am.  Mostly cloudy, with a low around 59. Northeast wind 3 to 7 mph.  Chance of precipitation is 30%.

    Low: 59 °F

    Chance
    Showers

  • Tuesday

    Tuesday: Mostly sunny, with a high near 72.

    High: 72 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 54.

    Low: 54 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 74.

    High: 74 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 54.

    Low: 54 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Calm wind. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 83. Calm wind. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
Showers and thunderstorms before 1am, then showers and possibly a thunderstorm, mainly after 1am. Low around 69. Calm wind. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Monday
Showers, mainly before 2pm. High near 76. Calm wind becoming northeast around 6 mph in the afternoon. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Monday Night
A chance of showers before 8pm, then a slight chance of showers after 2am. Mostly cloudy, with a low around 59. Northeast wind 3 to 7 mph. Chance of precipitation is 30%.
Tuesday
Mostly sunny, with a high near 72.
Tuesday Night
Partly cloudy, with a low around 54.
Wednesday
Partly sunny, with a high near 74.
Wednesday Night
Mostly cloudy, with a low around 54.
Thursday
Mostly sunny, with a high near 79.
Thursday Night
A 20 percent chance of showers. Partly cloudy, with a low around 55.
Friday
A 20 percent chance of showers. Partly sunny, with a high near 80.
Friday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 58.
Saturday
A 40 percent chance of showers. Partly sunny, with a high near 79.
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ABOUT THIS FORECAST

 
Point Forecast:
Harleyville SC
 33.2°N 80.44°W (Elev. 85 ft)
8:32 pm EDT Oct 3, 2026
12am EDT Oct 4, 2026-6pm EDT Oct 10, 2026
 
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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