Deer Run Weather Forecast

    • 71
    • 89

    Decreasing Clouds

    • 77
    • 94

    Mostly Sunny

    • 72
    • 96

    Chance Thunderstorms

    • 71
    • 90

    Chance Thunderstorms

    • 71
    • 89

    Chance Thunderstorms

    • 71
    • 92

    Mostly Sunny

Today 22 Jul Northern Will

Partly cloudy through mid Afternoon, then becoming mostly sunny. Highs in the upper 80s. Southeast Winds 5 to 10 Mph.

Tonight 22 Jul Northern Will

Mostly clear in the Evening, then becoming partly cloudy. Lows around 70. Southeast Winds 5 to 10 Mph.

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Deer Run Temperature Statistics

July Temperature

Joliet Regional Airport (0 miles)

  • Lowest 18 July, 2025

    59.9 °F

  • Average July

    77.6 °F

  • Highest 5 July, 2025

    94.3 °F

Climate (2020–Present)

Joliet Regional Airport (0 miles)

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  • Average Low 2020–2025

    43.4 °F

  • Average 2020–2025

    53.5 °F

  • Average High 2020–2025

    63 °F
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