Trail of Tears State Forest Weather Forecast

    • 55
    • 73

    Rain Showers

    • 55
    • 64

    Chance Rain Showers

    • 61
    • 69

    Cloudy

    • 57
    • 73

    Rain Showers Likely

    • 49
    • 68

    Chance Rain Showers

    • 48
    • 67

    Partly Sunny

    • 45
    • 66

    Partly Sunny

Today 31 Oct Union

Cloudy with a 20 percent chance of Showers. Near steady temperature in the lower 70s. Southeast Winds around 5 Mph.

Tonight 31 Oct Union

Showers likely. Lows in the mid 50s. Southeast Winds around 5 Mph. Chance of rain 70 percent.

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  • Temperature Real-Time

Trail of Tears State Forest Temperature Statistics

October Temperature

Southern Illinois Airport (19.9 miles)

  • Lowest 18 October, 2026

    34.6 °F

  • Average October

    64.5 °F

  • Highest 1 October, 2026

    93.7 °F

Climate (2021–2026)

Southern Illinois Airport (19.9 miles)

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  • Average Low 2021–2026

    48.3 °F

  • Average 2021–2026

    59 °F

  • Average High 2021–2026

    69.6 °F
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