Bourbonnais is a city of approximately 18,600 people in Illinois, United States. Located in the Central Time Zone at 41.2°N latitude.
Recent weather here gives a sense of typical conditions: in 2025, Bourbonnais recorded a mean annual temperature of 52°F, ranging from -8°F lows in January to 90°F highs in July, with about 33 inches of precipitation across the year.
View historical weather for Bourbonnais · More cities in Illinois