St. Pat's Weather Forecast

    • 73
    • 92

    Chance Thunderstorms

    • 72
    • 94

    Chance Thunderstorms

    • 67
    • 89

    Slight Chance Thunderstorms

    • 63
    • 84

    Partly Sunny

    • 65
    • 84

    Partly Sunny

    • 72
    • 89

    Chance Rain Showers

    • 70
    • 91

    Slight Chance Thunderstorms

Today 3 Sep Northern Will

Partly cloudy. A chance of Showers and Thunderstorms. Near steady temperature around 90. Southeast Winds 5 to 10 Mph. Chance of precipitation 30 percent. Heat index Values up to 101.

Tonight 3 Sep Northern Will

Mostly clear. Humid with Lows in the lower 70s. South 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 1 September, 2026

    74.7 °F

  • Average September

    83.3 °F

  • Highest 1 September, 2026

    94.1 °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

    63.3 °F
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