St. Pat's Weather Forecast

    • 66
    • 80

    Mostly Cloudy

    • 53
    • 81

    Becoming Sunny

    • 63
    • 81

    Mostly Sunny

    • 65
    • 85

    Slight Chance Thunderstorms

    • 67
    • 83

    Mostly Cloudy

    • 70
    • 89

    Chance Rain Showers

    • 63
    • 82

    Chance Rain Showers

Today 9 Sep Northern Will

Cloudy. Temperatures in the upper 70s. West Winds 5 to 10 Mph.

Tonight 9 Sep Northern Will

Mostly cloudy. Humid. Lows in the mid 60s. West 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 7 September, 2026

    60.1 °F
  • Average September

    80.3 °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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