St. Pat's Weather Forecast

    • 66
    • 67

    Rain Showers

    • 57
    • 75

    Rain Showers

    • 47
    • 67

    Mostly Sunny

    • 47
    • 67

    Mostly Sunny

    • 47
    • 71

    Mostly Sunny

    • 42
    • 65

    Mostly Sunny

    • 50
    • 66

    Partly Sunny

Today 30 Sep Northern Will

Partly cloudy. Highs in the lower 70s.

Tonight 30 Sep Northern Will

Showers until early Morning, then a chance of Showers late. Near steady temperature in the mid 60s. South Winds 5 to 10 Mph. Chance of precipitation near 100 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

St. Pat's Temperature Statistics

September Temperature

Joliet Regional Airport (3.7 miles)

  • Lowest 28 September, 2026

    45 °F

  • Average September

    70.9 °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

    43.7 °F

  • Average 2021–2026

    53.8 °F

  • Average High 2021–2026

    63.3 °F
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