Downers Grove is located in DuPage County, Illinois. There are roughly 49,461 residents, living in 19,646 households. The average temperature for Downers Grove this time of the year is low of 37F and high of 60F. On average, Downers Grove gets about 3.78 inches of precipitation in April. Most residents are home owners (76%), have a post secondary degree (63%) and are single, no kids (39%).