St Charles Weather Forecast

    • 56
    • 77

    Increasing Clouds

    • 39
    • 64

    Rain Showers

    • 41
    • 62

    Mostly Sunny

    • 37
    • 65

    Mostly Sunny

    • 36
    • 57

    Mostly Sunny

    • 42
    • 63

    Slight Chance Rain Showers

Today 18 Oct Lee

Sunny. Highs in the upper 70s to lower 80s. Southwest Winds 10 Mph or less.

Tonight 18 Oct Lee

Mostly cloudy. A slight chance of Showers late. Lows in the upper 50s. South Winds 10 Mph or less. Gusts up to 20 Mph, increasing to 30 Mph after midnight. Chance of rain 20 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

St Charles Temperature Statistics

October Temperature

Lee County Airport (13 miles)

  • Lowest 9 October, 2025

    41 °F

  • Average October

    60.4 °F

  • Highest 1 October, 2025

    82.4 °F

Climate (2020–Present)

Lee County Airport (13 miles)

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

  • Average Low 2020–2025

    45.7 °F

  • Average 2020–2025

    57.1 °F

  • Average High 2020–2025

    69.6 °F
Get WillyWeather+ to remove ads