Winnsboro, SC Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Winnsboro, a town in Fairfield County, South Carolina.
This Afternoon
94°F
Sunny
Sunny, with a high near 94. Northwest wind around 1 mph. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Winnsboro
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 94°F | Sunny | 1 mph NW | 13% |
| Tonight | 70°F | Chance Showers And Thunderstorms | 1 mph NW | 47% |
| Saturday | 90°F | Patchy Fog then Chance Showers And Thunderstorms | 1 to 5 mph NE | 28% |
| Saturday Night | 69°F | Slight Chance Showers And Thunderstorms | 3 mph E | 19% |
| Sunday | 88°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 1 mph E | 18% |
| Sunday Night | 69°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 1 mph NE | 18% |
| Monday | 90°F | Mostly Sunny then Chance Showers And Thunderstorms | 2 mph SE | 47% |
| Monday Night | 69°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 2 mph E | 65% |
| Tuesday | 85°F | Showers And Thunderstorms Likely | 1 to 5 mph NE | 61% |
| Tuesday Night | 67°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 6 mph NE | 61% |
| Wednesday | 79°F | Chance Showers And Thunderstorms | 6 to 9 mph NE | 34% |
| Wednesday Night | 63°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 6 to 9 mph NE | 34% |
| Thursday | 79°F | Partly Sunny | 7 mph NE | 11% |
| Thursday Night | 62°F | Partly Cloudy | 6 mph NE | 11% |
Forecast source: National Weather Service (api.weather.gov) for Winnsboro (34.370, -81.091). Updated through the day.
Growing snapshot for Winnsboro
Last spring frost
Mar 31
First fall frost
Nov 6
Growing season
221 days
Hardiness zone
8a
More local growing data for Winnsboro: nearby ZIP 29180 weather · frost dates · planting calendar · South Carolina frost dates
Nearby towns & communities
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Climate data from the nearest NOAA station, Winnsboro, Sc (1 mi from Winnsboro). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.