St. Pat's Weather Forecast
- 66
- 79
Chance Thunderstorms
- 60
- 78
Partly Sunny
- 61
- 78
Mostly Sunny
- 64
- 78
Chance Rain Showers
- 61
- 79
Chance Thunderstorms
- 60
- 76
Partly Sunny
Today 18 Aug Northern Will
Mostly cloudy. A slight chance of Showers early in the afternoon. A chance of Showers and Thunderstorms late. Highs in the upper 70s. Southwest Winds 5 to 10 Mph. Chance of precipitation 50 percent.
Tonight 18 Aug Northern Will
Mostly cloudy. A chance of Showers and Thunderstorms until early Morning, then a slight chance of Showers late. Humid with Lows in the mid 60s. Southwest Winds 5 to 10 Mph, becoming west after midnight. Chance of precipitation 50 percent.
St. Pat's Temperature Statistics
August Temperature
Joliet Regional Airport (3.7 miles)
Lowest 3 August, 2026
60.6 °FAverage August
75.4 °FHighest 10 August, 2026
89.4 °F
Climate (2021–2026)
Joliet Regional Airport (3.7 miles)
Average Low 2021–2026
43.7 °FAverage 2021–2026
53.8 °FAverage High 2021–2026
63.4 °F