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
78°F
Mostly Sunny
Mostly sunny, with a high near 78. East wind around 7 mph.
7-day forecast for Winnsboro
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 78°F | Mostly Sunny | 7 mph E | 1% |
| Tonight | 55°F | Partly Cloudy then Areas Of Fog | 5 mph E | 2% |
| Wednesday | 80°F | Areas Of Fog then Mostly Cloudy | 3 to 7 mph SE | 11% |
| Wednesday Night | 62°F | Chance Light Rain | 5 mph SE | 42% |
| Thursday | 79°F | Chance Light Rain | 1 to 5 mph S | 49% |
| Thursday Night | 61°F | Chance Light Rain then Slight Chance T-storms | 2 mph S | 55% |
| Friday | 77°F | Light Rain Likely | 2 to 6 mph SW | 55% |
| Friday Night | 52°F | Chance Light Rain | 3 mph W | 29% |
| Saturday | 75°F | Mostly Sunny | 3 mph NW | 8% |
| Saturday Night | 48°F | Partly Cloudy | 2 mph N | 5% |
| Sunday | 71°F | Mostly Sunny | 3 mph N | 6% |
| Sunday Night | 46°F | Slight Chance Light Rain | 3 mph NW | 15% |
| Monday | 66°F | Slight Chance Light Rain then Mostly Sunny | 3 to 8 mph NW | 15% |
| Monday Night | 40°F | Mostly Clear | 5 mph NW | 7% |
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 Nov 3, 2026.