De Soto Weather Forecast

    • 27
    • 42

    Increasing Clouds

    • 31
    • 44

    Mostly Cloudy

    • 20
    • 45

    Slight Chance Rain/Snow

    • 24
    • 35

    Partly Sunny

    • 37
    • 47

    Mostly Cloudy

    • 23
    • 50

    Chance Rain Showers

Today 5 Dec Jackson

Sunny. Highs in the lower 40s. South Winds 5 to 10 Mph.

Tonight 5 Dec Jackson

Mostly clear in the Evening, then becoming mostly cloudy. Near steady temperature in the upper 20s. Southwest Winds 5 to 10 Mph.

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De Soto Temperature Statistics

December Temperature

Southern Illinois Airport (2.5 miles)

  • Lowest 2 December, 2025

    24.1 °F

  • Average December

    28.2 °F

  • Highest 3 December, 2025

    35.1 °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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