Rock Run County Forest Preserve Weather Forecast

    • 73
    • 90

    Thunderstorms

    • 66
    • 90

    Thunderstorms Likely

    • 66
    • 81

    Patchy Smoke

    • 72
    • 87

    Thunderstorms Likely

    • 63
    • 87

    Mostly Sunny

    • 59
    • 79

    Mostly Sunny

    • 61
    • 81

    Partly Sunny

Today 17 Jul Northern Will

Numerous Showers and scattered Thunderstorms. Temperatures in the upper 80s. Southwest Winds around 10 Mph. Chance of precipitation 60 percent.

Tonight 17 Jul Northern Will

Partly cloudy. Scattered Showers and Thunderstorms early in the evening. Humid. Lows in the lower 70s. Southwest Winds 5 to 10 Mph. Chance of precipitation 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Rock Run County Forest Preserve Temperature Statistics

July Temperature

Joliet Regional Airport (1.2 miles)

  • Lowest 13 July, 2026

    61.9 °F

  • Average July

    78.9 °F

  • Highest 2 July, 2026

    94.6 °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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