St. Pat's Weather Forecast
- 50
- 73
Partly Sunny
- 52
- 74
Mostly Sunny
- 61
- 77
Chance Rain Showers
- 64
- 74
Rain Showers Likely
- 59
- 73
Rain Showers Likely
- 56
- 67
Chance Rain Showers
Today 27 Sep Northern Will
Partly cloudy. Patchy fog late in the morning. Highs in the lower 70s. Northeast Winds around 5 Mph.
Tonight 27 Sep Northern Will
Partly cloudy. Lows around 50. North Winds around 5 Mph.
St. Pat's Temperature Statistics
September Temperature
Joliet Regional Airport (3.7 miles)
Lowest 14 September, 2026
50 °FAverage September
72.2 °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