St. Pat's Weather Forecast

    • 72
    • 82

    Rain Showers

    • 66
    • 84

    Chance Thunderstorms

    • 63
    • 81

    Partly Sunny

    • 68
    • 81

    Chance Thunderstorms

    • 61
    • 79

    Slight Chance Thunderstorms

    • 58
    • 74

    Slight Chance Thunderstorms

Today 15 Aug Northern Will

Showers and a chance of Thunderstorms in the Morning, then a chance of Showers and a slight chance of Thunderstorms in the afternoon. Some Thunderstorms may produce heavy rainfall early in the morning. Locally heavy rainfall possible early in the morning. Humid. Highs in the lower 80s. South Winds 5 to 10 Mph, becoming southwest in the afternoon. Chance of precipitation near 100 percent.

Tonight 15 Aug Northern Will

Mostly cloudy. A slight chance of Showers until early morning. A slight chance of Thunderstorms after Midnight, then a chance of Showers and Thunderstorms late. Humid with Lows in the lower 70s. Southwest Winds 5 to 10 Mph. Chance of precipitation 40 percent.

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St. Pat's Temperature Statistics

August Temperature

Joliet Regional Airport (3.7 miles)

  • Lowest 3 August, 2026

    60.6 °F

  • Average August

    75.3 °F

  • Highest 10 August, 2026

    89.4 °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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