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

Low: 71 °F
Chance
ShowersSunday

High: 83 °F
Showers
LikelySunday Night

Low: 69 °F
Showers
Monday

High: 76 °F
Showers
Monday Night

Low: 59 °F
Chance
ShowersTuesday

High: 72 °F
Mostly Sunny
Tuesday Night

Low: 54 °F
Partly Cloudy
Wednesday

High: 74 °F
Partly Sunny
Wednesday Night

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.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Harleyville SC
33.2°N 80.44°W (Elev. 85 ft)
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


