The average Illinois price for a gallon of regular unleaded gasoline is $2.41. This is 6 cents more expensive than last week.
AAA reports the most expensive gas is in the City of Chicago, at $2.72 per gallon. By contrast, Danville has the cheapest gas at $2.22. Rockford's average price is $2.33 per gallon. That's 4 cents higher than last week.