Winnsboro Weather Forecast
- 68
- 90
Mostly Sunny
- 71
- 91
Partly Sunny
- 71
- 93
Chance Thunderstorms
- 70
- 89
Rain Showers Likely
- 70
- 90
Chance Thunderstorms
- 70
- 91
Slight Chance Thunderstorms
Today 9 Sep Fairfield
Sunny. Highs around 90. East Winds around 5 Mph.
Tonight 9 Sep Fairfield
Mostly clear. Lows in the upper 60s. South Winds around 5 Mph.
Winnsboro Temperature Statistics
September Temperature
Winnsboro/Fairfield County Airport (4.3 miles)
Lowest 5 September, 2026
69.8 °FAverage September
81.3 °FHighest 3 September, 2026
96.8 °F
Climate (2021–2026)
Winnsboro/Fairfield County Airport (4.3 miles)
Average Low 2021–2026
53.1 °FAverage 2021–2026
62.7 °FAverage High 2021–2026
73.5 °F