Harleyville, SC Weather & Growing Conditions
Today
91°F
Patchy Fog then Chance Showers And Thunderstorms
Patchy fog before 8am, then a chance of showers and thunderstorms. Mostly sunny, with a high near 91. Heat index values as high as 102. Southeast wind 0 to 5 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 91°F | Patchy Fog then Chance Showers And Thunderstorms | 0 to 5 mph SE | 47% |
| Tonight | 72°F | Showers And Thunderstorms Likely | 0 to 5 mph E | 55% |
| Wednesday | 91°F | Chance Showers And Thunderstorms | 0 to 7 mph S | 35% |
| Wednesday Night | 73°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 to 8 mph S | 17% |
| Thursday | 91°F | Chance Showers And Thunderstorms | 0 to 5 mph S | 67% |
| Thursday Night | 73°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 0 to 3 mph SE | 67% |
| Friday | 93°F | Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 0 to 7 mph SE | 58% |
| Friday Night | 72°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 6 mph SE | 41% |
| Saturday | 92°F | Showers And Thunderstorms Likely | 0 to 5 mph SE | 56% |
| Saturday Night | 73°F | Showers And Thunderstorms Likely then Partly Cloudy | 0 to 3 mph E | 56% |
| Sunday | 93°F | Showers And Thunderstorms Likely | 2 mph SW | 58% |
| Sunday Night | 73°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 2 mph S | 58% |
| Monday | 94°F | Chance Showers And Thunderstorms | 3 mph SW | 44% |
| Monday Night | 74°F | Chance Showers And Thunderstorms then Partly Cloudy | 3 mph SW | 44% |
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 (12.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.