Williams, SC Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Williams, a town in Colleton County, South Carolina.
Today
91°F
Sunny then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 2pm. Sunny, with a high near 91. North wind around 1 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Williams
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 91°F | Sunny then Chance Showers And Thunderstorms | 1 mph N | 37% |
| Tonight | 71°F | Chance Showers And Thunderstorms | 1 mph NE | 43% |
| Sunday | 88°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 1 mph NE | 20% |
| Sunday Night | 70°F | Chance Showers And Thunderstorms then Partly Cloudy | 1 mph NE | 28% |
| Monday | 90°F | Mostly Sunny then Chance Showers And Thunderstorms | 2 mph E | 32% |
| Monday Night | 71°F | Chance Showers And Thunderstorms | 2 mph SE | 32% |
| Tuesday | 87°F | Showers And Thunderstorms Likely | 0 to 3 mph NE | 57% |
| Tuesday Night | 70°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 0 to 3 mph NE | 57% |
| Wednesday | 83°F | Partly Sunny then Chance Showers And Thunderstorms | 5 to 9 mph NE | 38% |
| Wednesday Night | 66°F | Chance Showers And Thunderstorms | 3 to 9 mph NE | 38% |
| Thursday | 81°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 5 to 9 mph N | 16% |
| Thursday Night | 64°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 2 to 8 mph NE | 16% |
| Friday | 81°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 6 mph NE | 20% |
| Friday Night | 63°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 3 mph NE | 20% |
Forecast source: National Weather Service (api.weather.gov) for Williams (33.034, -80.843). Updated through the day.
Growing snapshot for Williams
Last spring frost
Mar 19
First fall frost
Nov 12
Growing season
239 days
Hardiness zone
8b
More local growing data for Williams: nearby ZIP 29493 weather · frost dates · planting calendar · South Carolina frost dates
Nearby towns & communities
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Climate data from the nearest NOAA station, Walterboro 1 Sw, Sc (14.7 mi from Williams). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.