Williamston, SC Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Williamston, a town in Greenville County, South Carolina.
Tonight
70°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 2am, then patchy fog. Partly cloudy, with a low around 70. North northeast wind around 5 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Williamston
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 70°F | Chance Showers And Thunderstorms | 5 mph NNE | 29% |
| Saturday | 91°F | Patchy Fog then Chance Showers And Thunderstorms | 2 to 7 mph NE | 32% |
| Saturday Night | 69°F | Chance Showers And Thunderstorms | 3 to 7 mph NE | 52% |
| Sunday | 87°F | Patchy Fog then Chance Showers And Thunderstorms | 3 mph ESE | 38% |
| Sunday Night | 69°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 3 mph NW | 32% |
| Monday | 89°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph SSW | 46% |
| Monday Night | 68°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 5 mph ENE | 59% |
| Tuesday | 82°F | Showers And Thunderstorms Likely | 3 to 9 mph ENE | 64% |
| Tuesday Night | 66°F | Showers And Thunderstorms Likely | 8 to 12 mph NE | 64% |
| Wednesday | 76°F | Chance Rain Showers | 14 mph NE | 41% |
| Wednesday Night | 62°F | Chance Showers And Thunderstorms | 14 mph NE | 41% |
| Thursday | 77°F | Slight Chance Rain Showers then Mostly Sunny | 9 to 13 mph NE | 15% |
| Thursday Night | 61°F | Partly Cloudy | 9 mph NE | 8% |
| Friday | 77°F | Mostly Sunny | 9 mph NE | 9% |
Forecast source: National Weather Service (api.weather.gov) for Williamston (34.620, -82.478). Updated through the day.
Growing snapshot for Williamston
Last spring frost
Apr 1
First fall frost
Nov 4
Growing season
219 days
Hardiness zone
8a
More local growing data for Williamston: nearby ZIP 29669 weather · frost dates · planting calendar · South Carolina frost dates
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Climate data from the nearest NOAA station, W Pelzer, Sc (2.4 mi from Williamston). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.