De Soto Weather Forecast

    • 51
    • 82

    Rain Showers

    • 42
    • 64

    Mostly Sunny

    • 49
    • 71

    Mostly Sunny

    • 39
    • 67

    Mostly Sunny

    • 43
    • 66

    Partly Sunny

    • 47
    • 69

    Chance Rain Showers

Today 18 Oct Jackson

Mostly sunny with a chance of Showers with a slight chance of Thunderstorms this Morning, then mostly cloudy with Showers with a chance of Thunderstorms this afternoon. Locally heavy rainfall possible this afternoon. Highs in the lower 80s. Southwest Winds 10 to 15 Mph. Chance of rain 80 percent.

Tonight 18 Oct Jackson

Showers with a chance of Thunderstorms in the Evening, then Showers likely after midnight. Locally heavy rainfall possible in the evening. Lows in the lower 50s. South Winds 10 to 15 Mph, becoming west with Gusts up to 30 Mph after midnight. Chance of rain near 100 percent.

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De Soto Temperature Statistics

October Temperature

Southern Illinois Airport (2.5 miles)

  • Lowest 10 October, 2025

    41 °F

  • Average October

    66.1 °F

  • Highest 1 October, 2025

    87.8 °F

Climate (2020–Present)

Southern Illinois Airport (2.5 miles)

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  • Average Low 2020–2025

    47.9 °F

  • Average 2020–2025

    58.2 °F

  • Average High 2020–2025

    68.8 °F
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