Harleyville, SC Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Harleyville, a town in Dorchester County, South Carolina.
Today
92°F
Mostly Sunny then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 92. Northeast wind around 3 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Harleyville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 92°F | Mostly Sunny then Chance Showers And Thunderstorms | 3 mph NE | 39% |
| Tonight | 71°F | Chance Showers And Thunderstorms | 0 to 3 mph E | 36% |
| Sunday | 90°F | Partly Sunny | 2 mph NE | 14% |
| Sunday Night | 70°F | Chance Showers And Thunderstorms then Partly Cloudy | 2 mph E | 31% |
| Monday | 91°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 3 mph E | 21% |
| Monday Night | 71°F | Chance Showers And Thunderstorms | 0 to 3 mph E | 32% |
| Tuesday | 88°F | Showers And Thunderstorms Likely | 1 to 5 mph NE | 63% |
| Tuesday Night | 69°F | Showers And Thunderstorms Likely | 2 to 6 mph NE | 63% |
| Wednesday | 84°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 7 to 10 mph NE | 42% |
| Wednesday Night | 66°F | Chance Showers And Thunderstorms | 6 to 9 mph NE | 42% |
| Thursday | 82°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 8 to 12 mph N | 16% |
| Thursday Night | 64°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 3 to 10 mph NE | 16% |
| Friday | 82°F | Slight Chance Rain Showers | 8 mph NE | 20% |
| Friday Night | 63°F | Slight Chance Rain Showers then Partly Cloudy | 2 to 7 mph NE | 20% |
Forecast source: National Weather Service (api.weather.gov) for Harleyville (33.213, -80.448). Updated through the day.
Growing snapshot for Harleyville
Last spring frost
Mar 22
First fall frost
Nov 12
Growing season
237 days
Hardiness zone
8b
More local growing data for Harleyville: nearby ZIP 29448 weather · frost dates · planting calendar · South Carolina frost dates
Nearby towns & communities
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Climate data from the nearest NOAA station, Holly Hill 1 Sw, Sc (4.7 mi from Harleyville). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.