Walterboro, SC Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Walterboro, a city in Colleton County, South Carolina.
Today
90°F
Mostly Sunny then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90. Heat index values as high as 101. South wind 0 to 6 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Walterboro
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 90°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 6 mph S | 42% |
| Tonight | 71°F | Showers And Thunderstorms Likely | 0 to 6 mph S | 61% |
| Wednesday | 91°F | Chance Showers And Thunderstorms | 0 to 8 mph S | 29% |
| Wednesday Night | 73°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 to 8 mph S | 16% |
| Thursday | 91°F | Chance Showers And Thunderstorms | 0 to 6 mph S | 58% |
| Thursday Night | 73°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 0 to 5 mph SE | 58% |
| Friday | 92°F | Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 0 to 8 mph E | 56% |
| Friday Night | 72°F | Chance Showers And Thunderstorms then Mostly Clear | 0 to 7 mph E | 39% |
| Saturday | 91°F | Showers And Thunderstorms Likely | 0 to 6 mph SE | 56% |
| Saturday Night | 72°F | Showers And Thunderstorms Likely then Partly Cloudy | 0 to 6 mph SE | 56% |
| Sunday | 92°F | Showers And Thunderstorms Likely | 0 to 3 mph SW | 59% |
| Sunday Night | 73°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 0 to 3 mph S | 59% |
| Monday | 94°F | Chance Showers And Thunderstorms | 0 to 5 mph SW | 42% |
| Monday Night | 74°F | Chance Showers And Thunderstorms then Partly Cloudy | 1 to 5 mph SW | 42% |
Forecast source: National Weather Service (api.weather.gov) for Walterboro (32.901, -80.676). Updated through the day.
Growing snapshot for Walterboro
Last spring frost
Mar 19
First fall frost
Nov 12
Growing season
239 days
Hardiness zone
8b
More local growing data for Walterboro: nearby ZIP 29488 weather · frost dates · planting calendar · South Carolina frost dates
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Climate data from the nearest NOAA station, Walterboro 1 Sw, Sc (1.5 mi from Walterboro). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.