Coal City Weather Forecast

    • 71
    • 89

    Thunderstorms

    • 67
    • 85

    Thunderstorms

    • 64
    • 83

    Isolated Thunderstorms

    • 65
    • 85

    Partly Sunny

    • 68
    • 87

    Slight Chance Thunderstorms

    • 68
    • 87

    Chance Thunderstorms

Today 4 Jul Grundy

Partly cloudy in the Morning, then becoming mostly cloudy. Scattered Showers and Thunderstorms. Humid with Highs in the upper 80s. Southwest Winds 5 to 10 Mph. Chance of precipitation 50 percent. Heat index Values up to 101.

Tonight 4 Jul Grundy

Mostly cloudy in the Evening, then becoming partly cloudy. Scattered Showers and Thunderstorms. Humid with Lows in the lower 70s. West Winds around 5 Mph. Chance of precipitation 50 percent.

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  • Temperature Real-Time

Coal City Temperature Statistics

July Temperature

Joliet Regional Airport (16.8 miles)

  • Lowest 1 July, 2026

    77.9 °F

  • Average July

    85.8 °F

  • Highest 1 July, 2026

    94.3 °F

Climate (2021–2026)

Joliet Regional Airport (16.8 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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