Grand Tower Weather Forecast

    • 62
    • 83

    Increasing Clouds

    • 66
    • 84

    Chance Rain Showers

    • 70
    • 87

    Rain Showers

    • 72
    • 85

    Rain Showers Likely

    • 74
    • 89

    Slight Chance Thunderstorms

    • 75
    • 94

    Mostly Sunny

    • 76
    • 96

    Mostly Sunny

Today 23 Jun Jackson

Sunny. Near steady temperature around 80. North Winds around 5 Mph.

Tonight 23 Jun Jackson

Mostly clear in the Evening, then becoming partly cloudy. Lows in the lower 60s. Northeast Winds around 5 Mph in the Evening, becoming light and variable.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grand Tower Temperature Statistics

June Temperature

Southern Illinois Airport (17.4 miles)

  • Lowest 3 June, 2026

    51.7 °F

  • Average June

    75.1 °F

  • Highest 11 June, 2026

    94.6 °F

Climate (2021–2026)

Southern Illinois Airport (17.4 miles)

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  • Average Low 2021–2026

    48.1 °F

  • Average 2021–2026

    58.6 °F

  • Average High 2021–2026

    69.3 °F
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