Grand Tower Weather Forecast

    • 1
    • 21

    Partly Sunny

    • 17
    • 28

    Partly Sunny

    • 26
    • 40

    Partly Sunny

    • 26
    • 41

    Chance Rain Showers

    • 16
    • 34

    Mostly Cloudy

    • 25
    • 36

    Partly Sunny

Today 31 Jan Jackson

Mostly sunny. Highs around 19. Northwest Winds 10 to 15 Mph with Gusts up to 25 Mph. Wind chill Readings as low as 6 below in the morning.

Tonight 31 Jan Jackson

Partly cloudy in the Evening, then becoming mostly clear. Cold with Lows around 1 above. Northwest Winds 5 to 10 Mph.

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Grand Tower Temperature Statistics

January Temperature

Southern Illinois Airport (17.4 miles)

  • Lowest 26 January, 2026

    -1.4 °F

  • Average January

    32.4 °F

  • Highest 8 January, 2026

    69.7 °F

Climate (2021–Present)

Southern Illinois Airport (17.4 miles)

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  • Average Low 2021–2026

    47.8 °F

  • Average 2021–2026

    58.2 °F

  • Average High 2021–2026

    68.8 °F
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