St. Pat's Weather Forecast
- 51
- 68
Gradual Clearing
- 50
- 70
Partly Sunny
- 52
- 71
Partly Sunny
- 56
- 72
Partly Sunny
- 63
- 73
Mostly Cloudy
- 62
- 72
Chance Rain Showers
Today 25 Sep Northern Will
Mostly cloudy. Occasional Sprinkles in the morning. Highs in the upper 60s. East Winds around 5 Mph.
Tonight 25 Sep Northern Will
Partly cloudy in the Evening, then clearing. Lows in the lower 50s. Northeast Winds around 5 Mph.
St. Pat's Temperature Statistics
September Temperature
Joliet Regional Airport (3.7 miles)
Lowest 14 September, 2026
50 °FAverage September
73.3 °FHighest 2 September, 2026
95.9 °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
63.3 °F