Winnsboro Weather Forecast

    • 33
    • 52

    Becoming Sunny

    • 41
    • 64

    Mostly Sunny

    • 52
    • 71

    Mostly Sunny

    • 57
    • 80

    Partly Sunny

    • 61
    • 84

    Mostly Sunny

    • 44
    • 78

    Chance Thunderstorms

    • 43
    • 59

    Slight Chance Rain

Today 18 Mar Fairfield

Mostly sunny. Highs in the lower 50s. Light and variable Winds.

Tonight 18 Mar Fairfield

Partly cloudy this Evening, then clearing. Widespread frost after midnight. Lows in the lower 30s. Light and variable Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Winnsboro Temperature Statistics

March Temperature

Winnsboro/Fairfield County Airport (4.3 miles)

  • Lowest 13 March, 2026

    33.8 °F
  • Average March

    61.3 °F
  • Highest 11 March, 2026

    86 °F

Climate (2021–Present)

Winnsboro/Fairfield County Airport (4.3 miles)

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  • Average Low 2021–2026

    53 °F
  • Average 2021–2026

    62.6 °F
  • Average High 2021–2026

    73.4 °F
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