FORT WAYNE, Ind. (WOWO): Gas prices continue to trend upward, but the jump isn't quite as big this week. Average prices have gone up just over 5 cents/gallon in the last week, averaging $3.77/gallon in Fort Wayne, compared to the national average, which is over 20 cents less/gallon. Patrick DeHaan with gasbuddy.com says several factors in the near future could contribute to additional gas price spikes, including maintenance.