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
80°F
Cloudy
Cloudy, with a high near 80. Southeast wind around 10 mph.
7-day forecast for Williston
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 80°F | Cloudy | 10 mph SE | 7% |
| Tonight | 65°F | Chance Light Rain | 3 to 9 mph SE | 43% |
| Thursday | 81°F | Slight Chance Light Rain then Slight Chance Showers And Thunderstorms | 2 to 6 mph SW | 22% |
| Thursday Night | 64°F | Chance Showers And Thunderstorms | 2 mph S | 44% |
| Friday | 78°F | Chance Showers And Thunderstorms then Light Rain Likely | 2 to 6 mph SW | 66% |
| Friday Night | 54°F | Partly Cloudy | 3 mph NW | 9% |
| Saturday | 75°F | Sunny | 3 to 7 mph N | 0% |
| Saturday Night | 43°F | Partly Cloudy | 5 mph NE | 0% |
| Sunday | 70°F | Sunny | 1 to 5 mph N | 1% |
| Sunday Night | 41°F | Mostly Clear | 1 mph NW | 2% |
| Monday | 72°F | Sunny | 1 mph N | 4% |
| Monday Night | 41°F | Slight Chance Light Rain | 0 mph | 15% |
| Tuesday | 72°F | Mostly Sunny | 0 to 5 mph SE | 8% |
| Tuesday Night | 44°F | Slight Chance Light Rain | 2 mph NW | 15% |
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
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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 Nov 5, 2026.