Defiance Weather Forecast

    • 51
    • 81

    Sunny

    • 47
    • 76

    Sunny

    • 55
    • 80

    Sunny

    • 57
    • 85

    Sunny

    • 57
    • 84

    Mostly Sunny

    • 57
    • 84

    Mostly Sunny

    • 59
    • 84

    Partly Sunny

Today 4 Oct St. Charles

Partly cloudy. A 20 percent chance of Showers. Lows around 60. Highs in the mid 80s.

Tonight 4 Oct St. Charles

Clear. Lows in the lower 50s. North Winds around 5 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Defiance Temperature Statistics

October Temperature

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

  • Lowest 2 October, 2026

    52 °F

  • Average October

    71.8 °F

  • Highest 1 October, 2026

    88 °F

Climate (2021–2026)

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

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    46.2 °F

  • Average 2021–2026

    57.6 °F

  • Average High 2021–2026

    69 °F
Get WillyWeather+ to remove ads