St. Pat's Weather Forecast

    • 55
    • 64

    Cloudy

    • 55
    • 61

    Mostly Cloudy

    • 54
    • 67

    Mostly Cloudy

    • 53
    • 68

    Mostly Cloudy

    • 50
    • 68

    Partly Sunny

    • 53
    • 67

    Mostly Cloudy

    • 54
    • 71

    Partly Sunny

Today 21 Sep Northern Will

Cloudy. Near steady temperature in the lower 60s. Northeast Winds 10 to 15 Mph.

Tonight 21 Sep Northern Will

Mostly cloudy. Lows in the mid 50s. Northeast Winds around 10 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 14 September, 2026

    50 °F

  • Average September

    74.8 °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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