Defiance Weather Forecast

    • 45
    • 52

    Rain

    • 33
    • 51

    Chance Rain

    • 41
    • 52

    Partly Sunny

    • 40
    • 65

    Mostly Cloudy

    • 32
    • 56

    Partly Sunny

    • 34
    • 48

    Chance Rain

Today 30 Jan St. Charles

A slight chance of Thunderstorms. Rain. Patchy fog. Highs around 50. Southeast Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain near 100 percent.

Tonight 30 Jan St. Charles

Mostly cloudy with a 20 percent chance of rain. Lows in the upper 20s. Southeast Winds around 5 Mph.

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Defiance Temperature Statistics

January Temperature

St. Louis, Spirit Of St. Louis Airport (6.8 miles)

  • Lowest 21 January, 2025

    -0.1 °F
  • Average January

    25.1 °F
  • Highest 17 January, 2025

    57.7 °F

Climate (2020–Present)

St. Louis, Spirit Of St. Louis Airport (6.8 miles)

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  • Average Low 2020–2025

    45.9 °F
  • Average 2020–2025

    56.7 °F
  • Average High 2020–2025

    67.9 °F
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