Rock Run County Forest Preserve Weather Forecast

    • 40
    • 60

    Rain Showers

    • 35
    • 52

    Mostly Cloudy

    • 38
    • 55

    Partly Sunny

    • 49
    • 65

    Chance Rain Showers

    • 50
    • 74

    Chance Thunderstorms

    • 44
    • 65

    Rain Showers Likely

    • 41
    • 60

    Chance Rain Showers

Today 30 Apr Northern Will

Mostly cloudy. A slight chance of Showers early in the afternoon. Showers likely late. Highs in the upper 50s. West Winds around 5 Mph, increasing to northwest in the afternoon. Chance of precipitation 60 percent.

Tonight 30 Apr Northern Will

Cloudy. Showers early in the Evening, then scattered Showers after midnight. Isolated Showers late. Lows around 40. Northeast Winds 5 to 10 Mph. Chance of precipitation 90 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

    54.7 °F

  • Highest 17 April, 2026

    83.8 °F

Climate (2021–Present)

Joliet Regional Airport (1.2 miles)

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  • Average Low 2021–2026

    43.6 °F

  • Average 2021–2026

    53.8 °F

  • Average High 2021–2026

    63.3 °F
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