Rock Run County Forest Preserve Weather Forecast

    • 59
    • 70

    Chance Rain Showers

    • 63
    • 79

    Partly Sunny

    • 74
    • 86

    Partly Sunny

    • 76
    • 92

    Mostly Sunny

    • 76
    • 93

    Mostly Sunny

    • 75
    • 94

    Mostly Sunny

Today 26 Jun Northern Will

Mostly cloudy. A slight chance of Showers late in the Morning, then a chance of Showers early in the afternoon. A slight chance of Showers late. Highs in the lower 70s. East Winds around 10 Mph. Chance of precipitation 40 percent.

Tonight 26 Jun Northern Will

Partly cloudy. Lows in the upper 50s. Northeast Winds around 10 Mph, Diminishing to around 5 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Rock Run County Forest Preserve Temperature Statistics

June Temperature

Joliet Regional Airport (1.2 miles)

  • Lowest 3 June, 2026

    47.7 °F

  • Average June

    70.6 °F

  • Highest 6 June, 2026

    91.2 °F

Climate (2021–2026)

Joliet Regional Airport (1.2 miles)

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  • Average Low 2021–2026

    43.6 °F

  • Average 2021–2026

    53.7 °F

  • Average High 2021–2026

    63.3 °F
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