The average Illinois price for a gallon of regular unleaded gasoline is $2.35. This is five cents cheaper than last week.
AAA reports the most expensive gas is in the City of Chicago, at $2.71 per gallon. By contrast, the cheapest gas can be found in Springfield, at $2.13 per gallon.
Rockford's average price is $2.29. This is 2 cents cheaper than last week.