Winnsboro Weather Forecast

    • 68
    • 92

    Thunderstorms Likely

    • 67
    • 83

    Chance Thunderstorms

    • 67
    • 87

    Mostly Sunny

    • 69
    • 89

    Mostly Sunny

    • 71
    • 92

    Partly Sunny

    • 69
    • 91

    Chance Thunderstorms

Today 6 Sep Fairfield

Mostly sunny. Showers and Thunderstorms likely this afternoon. Highs in the lower 90s. Northeast Winds around 5 Mph. Chance of rain 70 percent.

Tonight 6 Sep Fairfield

Showers and Thunderstorms likely. Lows in the upper 60s. East Winds around 5 Mph. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Winnsboro Temperature Statistics

September Temperature

Winnsboro/Fairfield County Airport (4.3 miles)

  • Lowest 4 September, 2026

    71.6 °F

  • Average September

    83.5 °F

  • Highest 3 September, 2026

    96.8 °F

Climate (2021–2026)

Winnsboro/Fairfield County Airport (4.3 miles)

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  • Average Low 2021–2026

    53.1 °F

  • Average 2021–2026

    62.7 °F

  • Average High 2021–2026

    73.5 °F
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