Grand Tower Weather Forecast

    • 51
    • 58

    Slight Chance Rain

    • 47
    • 61

    Rain

    • 41
    • 55

    Rain Likely

    • 37
    • 57

    Partly Sunny

    • 38
    • 60

    Partly Sunny

    • 38
    • 60

    Partly Sunny

Today 27 Oct Jackson

Cloudy. Rain Likely, mainly this morning. Highs in the upper 50s. East Winds 5 to 10 Mph. Chance of rain 70 percent.

Tonight 27 Oct Jackson

Cloudy. Lows in the lower 50s. East Winds around 5 Mph.

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Grand Tower Temperature Statistics

October Temperature

Southern Illinois Airport (17.4 miles)

  • Lowest 24 October, 2025

    35.1 °F

  • Average October

    63.2 °F

  • Highest 1 October, 2025

    87.8 °F

Climate (2020–Present)

Southern Illinois Airport (17.4 miles)

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  • Average Low 2020–2025

    47.9 °F

  • Average 2020–2025

    58.2 °F

  • Average High 2020–2025

    68.9 °F
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