St Charles Weather Forecast

    • 64
    • 82

    Rain Showers

    • 56
    • 79

    Chance Rain Showers

    • 60
    • 81

    Mostly Sunny

    • 65
    • 83

    Rain Showers

    • 62
    • 78

    Rain Showers

    • 59
    • 79

    Chance Thunderstorms

Today 18 Jun Lee

A chance of Showers with a slight chance of Thunderstorms in the Morning, then Showers and Thunderstorms likely in the afternoon. Highs in the lower to mid 80s. Southwest Winds 10 to 20 Mph with Gusts up to 30 Mph. Chance of rain 70 percent.

Tonight 18 Jun Lee

Cloudy. A slight chance of Showers and Thunderstorms late. Near steady temperature around 70. Southwest Winds 5 to 15 Mph with Gusts up to 30 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

St Charles Temperature Statistics

June Temperature

Lee County Airport (13 miles)

  • Lowest 3 June, 2026

    48.2 °F

  • Average June

    71.4 °F

  • Highest 11 June, 2026

    91.4 °F

Climate (2021–2026)

Lee County Airport (13 miles)

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  • Average Low 2021–2026

    45 °F

  • Average 2021–2026

    56.4 °F

  • Average High 2021–2026

    69 °F
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