Williston, SC Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Williston, a town in Barnwell County, South Carolina.
This Afternoon
93°F
Sunny
Sunny, with a high near 93. South wind around 2 mph.
7-day forecast for Williston
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 93°F | Sunny | 2 mph S | 5% |
| Tonight | 71°F | Partly Cloudy then Patchy Fog | 1 mph W | 13% |
| Saturday | 92°F | Patchy Fog then Chance Showers And Thunderstorms | 2 mph N | 37% |
| Saturday Night | 71°F | Chance Showers And Thunderstorms | 2 mph E | 33% |
| Sunday | 89°F | Partly Sunny then Chance Showers And Thunderstorms | 2 mph NE | 33% |
| Sunday Night | 71°F | Chance Showers And Thunderstorms then Partly Cloudy | 2 mph E | 33% |
| Monday | 90°F | Mostly Sunny then Chance Showers And Thunderstorms | 2 mph E | 45% |
| Monday Night | 71°F | Chance Showers And Thunderstorms | 2 mph E | 45% |
| Tuesday | 88°F | Showers And Thunderstorms Likely | 1 to 5 mph NE | 58% |
| Tuesday Night | 69°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 2 to 6 mph NE | 58% |
| Wednesday | 83°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 9 mph NE | 30% |
| Wednesday Night | 66°F | Chance Showers And Thunderstorms then Partly Cloudy | 9 mph NE | 30% |
| Thursday | 82°F | Mostly Sunny | 8 mph NE | 9% |
| Thursday Night | 64°F | Partly Cloudy | 3 to 7 mph NE | 9% |
Forecast source: National Weather Service (api.weather.gov) for Williston (33.402, -81.422). Updated through the day.
Growing snapshot for Williston
Last spring frost
Mar 20
First fall frost
Nov 13
Growing season
238 days
Hardiness zone
8b
More local growing data for Williston: nearby ZIP 29853 weather · frost dates · planting calendar · South Carolina frost dates
Nearby towns & communities
All South Carolina locations ›
Climate data from the nearest NOAA station, Blackville 3 W, Sc (6.7 mi from Williston). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.