Rock Run County Forest Preserve Weather Forecast

    • 52
    • 63

    Slight Chance Rain Showers

    • 53
    • 65

    Chance Rain Showers

    • 59
    • 68

    Rain Showers Likely

    • 54
    • 72

    Rain Showers

    • 47
    • 66

    Chance Rain Showers

    • 47
    • 66

    Chance Rain Showers

Today 31 Oct Northern Will

Cloudy. Scattered Showers early in the Afternoon, then isolated Showers late. Highs in the lower 60s. East Winds around 5 Mph. Chance of precipitation 30 percent.

Tonight 31 Oct Northern Will

Cloudy. A slight chance of Showers in the late evening and overnight. Lows in the lower 50s. East Winds around 5 Mph. Chance of precipitation 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Rock Run County Forest Preserve Temperature Statistics

October Temperature

Joliet Regional Airport (1.2 miles)

  • Lowest 18 October, 2026

    35.6 °F

  • Average October

    60.1 °F

  • Highest 12 October, 2026

    89.6 °F

Climate (2021–2026)

Joliet Regional Airport (1.2 miles)

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  • Average Low 2021–2026

    43.6 °F

  • Average 2021–2026

    53.8 °F

  • Average High 2021–2026

    63.4 °F
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