Harleyville, SC Weather & Growing Conditions
Tonight
70°F
Partly Cloudy then Slight Chance Rain Showers
A slight chance of rain showers between 2am and 3am. Partly cloudy, with a low around 70. South wind around 1 mph. Chance of precipitation is 20%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 70°F | Partly Cloudy then Slight Chance Rain Showers | 1 mph S | 17% |
| Saturday | 93°F | Mostly Sunny then Chance Showers And Thunderstorms | 2 mph NE | 41% |
| Saturday Night | 71°F | Chance Showers And Thunderstorms | 2 mph NE | 36% |
| Sunday | 90°F | Chance Showers And Thunderstorms | 2 mph NE | 46% |
| Sunday Night | 71°F | Chance Showers And Thunderstorms then Partly Cloudy | 1 mph NE | 46% |
| Monday | 91°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 3 mph E | 39% |
| Monday Night | 71°F | Chance Showers And Thunderstorms | 0 to 3 mph E | 39% |
| Tuesday | 89°F | Showers And Thunderstorms Likely | 0 to 5 mph NE | 60% |
| Tuesday Night | 70°F | Showers And Thunderstorms Likely | 0 to 5 mph NE | 60% |
| Wednesday | 85°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 6 to 10 mph NE | 39% |
| Wednesday Night | 67°F | Chance Showers And Thunderstorms then Mostly Cloudy | 6 to 9 mph NE | 39% |
| Thursday | 84°F | Partly Sunny then Slight Chance Showers And Thunderstorms | 10 mph NE | 17% |
| Thursday Night | 65°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 3 to 8 mph NE | 17% |
| Friday | 83°F | Mostly Sunny | 6 to 9 mph N | 12% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Harleyville, SC
Last spring frost
Mar 22
First fall frost
Nov 12
Growing season
237 days
Hardiness zone
8b
Explore more for Harleyville, SC: full frost dates · planting calendar · South Carolina frost dates
Climate data from the nearest NOAA station, Holly Hill 1 Sw, Sc (4.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.