Gas prices are continuing to substantially increase, with five states now hovering near $4 a gallon and several others seeing sharp increases as President Donald Trump’s war in Iran enters its 17th day.“Big gas price hikes just now starting to happen in Michigan, Indiana, Ohio, Kentucky, Tennessee, Illinois, Missouri today, which will likely push the national average to $3.75-$3.80 by mid-week,” reports Patrick De Haan, the head of Petroleum Analysis at GasBuddy. But, he also notes that Michigan and the Chicago area are already seeing $3.99 per gallon as of Monday. Indiana drivers are seeing $3.89, and Ohio and Kentucky are seeing $3.79 per gallon. De Haan directly attributes the increases to the summer gasoline changeover and the ongoing Iran situation.“The national average is up 80.0 cents from a month ago and is 66.1 cents per gallon higher than a year ago,” WANE reports, citing GasBuddy’s data.Drivers should not expect to see prices come down significantly anytime soon.“Until we see a meaningful resumption of oil flows through the Strait of Hormuz, upward pressure on fuel prices is likely to persist,” De Haan said. “At the same time, seasonal forces are beginning to intensify as several regions complete the transition to summer gasoline, creating a double headwind that could continue driving pump prices higher in the weeks ahead.”