Thirty-year mortgage rates increased slightly last week for the second consecutive week. The weekly average rates for 30-year fixed mortgages increased to 5.10 percent, up from 5.07 percent the week prior, according to the Zillow Mortgage Rate Monitor, compiled by leading real estate Web site Zillow.com®.

Meanwhile, rates for 15-year fixed mortgages decreased to 4.79 percent, down from 4.86 percent and 5-1 adjustable rate mortgages increased slightly to 5.62 percent from 5.56 percent.

Rates for 30-year fixed mortgages edged just below 5.00% again on Monday evening, with the average rate on Zillow Mortgage Marketplace at 4.98 percent.

At a state level, the 30-year fixed mortgage rate in North Carolina had the biggest increase, rising from 4.99 percent to 5.09 percent. Rates on 30-year fixed mortgages were lowest in the states of Arizona (4.97%) and Georgia (4.99%), while Maryland (5.26%) and Virginia (5.24%) had the highest rates.