articleThe Brief Gas prices in Michigan went up by .10 cents overnight. Gas prices in Michigan continue to rise, and according to Triple-A Michigan, are nearly .30 cents higher than the national average. By the numbers:As of Friday, gas in Michigan went up .10 cents overnight and is now $4.37 a gallon. The Michigan price is 30 cents more than this time last month ($4.07) and about $1.21 more than this time last year ($3.16). People around the world are also dealing with high gas prices as a result of the Iran conflict and Middle East tensions.