The average Illinois price for a gallon of regular unleaded gasoline is $2.48. This is 4 cents more expensive than last week.
AAA reports the most expensive gas can be found in the city of Chicago, at $2.80 per gallon. In contrast, the cheapest gas is in Springfield, at $2.28 per gallon.
Rockford’s average price is $2.39. This is one cent cheaper than last week.