Winfield Weather Forecast

    • 55
    • 74

    Decreasing Clouds

    • 56
    • 77

    Partly Sunny

    • 57
    • 75

    Partly Sunny

    • 56
    • 77

    Mostly Cloudy

    • 58
    • 76

    Slight Chance Thunderstorms

    • 60
    • 82

    Partly Sunny

Today 22 Sep Lincoln

Mostly cloudy. A slight chance of very light drizzle this morning. Highs in the lower 70s. Northeast Winds 5 to 10 Mph.

Tonight 22 Sep Lincoln

Mostly cloudy in the Evening, then becoming partly cloudy. Lows in the mid 50s. Northeast Winds 5 to 10 Mph.

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Winfield Temperature Statistics

September Temperature

St. Charles, St. Charles County Smartt Airport (16.8 miles)

  • Lowest 14 September, 2026

    60.7 °F

  • Average September

    81.6 °F

  • Highest 2 September, 2026

    101.6 °F

Climate (2021–2026)

St. Charles, St. Charles County Smartt Airport (16.8 miles)

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  • Average Low 2021–2026

    47.4 °F

  • Average 2021–2026

    58.1 °F

  • Average High 2021–2026

    69 °F
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