Cathedral Area Weather Forecast

    • 65
    • 89

    Increasing Clouds

    • 64
    • 83

    Chance Thunderstorms

    • 63
    • 79

    Rain Showers Likely

    • 62
    • 77

    Chance Thunderstorms

    • 62
    • 78

    Chance Rain Showers

    • 60
    • 74

    Slight Chance Rain Showers

Today 19 Sep Northern Will

Increasing cloudiness. A slight chance of Showers and Thunderstorms late in the afternoon. Highs in the upper 80s. Southeast Winds 5 to 10 Mph. Chance of precipitation 20 percent.

Tonight 19 Sep Northern Will

A chance of Showers early in the evening. A chance of Thunderstorms. Showers likely in the late evening and overnight. Lows in the mid 60s. Southeast Winds around 5 Mph. Chance of precipitation 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Cathedral Area Temperature Statistics

September Temperature

Joliet Regional Airport (3.7 miles)

  • Lowest 7 September, 2025

    40.1 °F

  • Average September

    65.9 °F

  • Highest 14 September, 2025

    88.5 °F

Climate (2020–Present)

Joliet Regional Airport (3.7 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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