Rock Run County Forest Preserve Weather Forecast

    • 44
    • 83

    Severe Tstms

    • 34
    • 52

    Partly Sunny

    • 32
    • 52

    Mostly Sunny

    • 46
    • 56

    Partly Sunny

    • 50
    • 74

    Partly Sunny

    • 54
    • 74

    Mostly Sunny

    • 61
    • 81

    Chance Rain Showers

Today 17 Apr Northern Will

Partly cloudy. A slight chance of Showers and Thunderstorms late. Breezy. Highs in the lower 80s. South Winds 10 to 15 Mph, increasing to 15 to 20 Mph in the afternoon. Gusts up to 30 Mph. Chance of precipitation 20 percent.

Tonight 17 Apr Northern Will

Thunderstorms in the evening. Showers. Some Thunderstorms may be severe with damaging Winds, large Hail, heavy Rainfall, and Tornadoes, then some Thunderstorms may produce damaging Winds, large Hail, Tornadoes, and heavy rainfall late in the evening. Locally heavy rainfall possible late in the evening. Breezy. Lows in the mid 40s. South Winds 15 to 20 Mph, becoming west after midnight. Gusts up to 30 Mph. Chance of precipitation near 100 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Rock Run County Forest Preserve Temperature Statistics

April Temperature

Joliet Regional Airport (1.2 miles)

  • Lowest 7 April, 2026

    31.5 °F

  • Average April

    54.1 °F

  • Highest 12 April, 2026

    81.5 °F

Climate (2021–Present)

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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