Experts expect the trend of increasing gas prices to continue through the Labor Day weekend.
Over the course of just one week, the Tennessee average has increased about seven cents per gallon.
The trend is worse in Nashville where drivers are paying more than 10 cents more to fill up their gas tanks than they were a week ago.
"It's probably going to cost close to $40 to fill my 10 gallon tank now," Grey Bardo said.
Driver Billy Brooks added that he typically purchases premium gasoline, but has been filling up his truck with a lower grade to save money.
"I came by yesterday when it was $3.61," he said. "I thought, I'll wait until the morning [to get gas] and overnight it went up a dime."
Hurricane Isaac and a refinery blast in Venezuela are pushing prices up, according to a spokesperson for AAA.
Hurricane Isaac has caused nearly 350 offshore oil and gas production platforms to shutdown and evacuate as a precaution, causing a loss of one million barrels of oil per day. That's nearly 17% of the daily oil production in the country.
Production is expected to resume after the storm passes.
It is unclear how much more gas prices will rise.
The average price for a gallon of regular gas in Nashville Wednesday was $3.63 a gallon, up from $3.51 a week ago, $3.29 a month ago and $3.44 a year ago.