St. Pat's Weather Forecast

    • 60
    • 82

    Partly Sunny

    • 70
    • 86

    Chance Rain Showers

    • 60
    • 84

    Rain Showers Likely

    • 58
    • 76

    Mostly Sunny

    • 64
    • 84

    Chance Rain Showers

    • 64
    • 87

    Slight Chance Rain Showers

    • 63
    • 84

    Chance Rain Showers

Today 7 Sep Northern Will

Mostly sunny. Near steady temperature around 80. East Winds 5 to 10 Mph.

Tonight 7 Sep Northern Will

Partly cloudy. Lows around 60. Southeast Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

St. Pat's Temperature Statistics

September Temperature

Joliet Regional Airport (3.7 miles)

  • Lowest 2 September, 2026

    72.9 °F

  • Average September

    83 °F

  • Highest 2 September, 2026

    95.9 °F

Climate (2021–2026)

Joliet Regional Airport (3.7 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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