A number of important mortgage rates climbed in the St. Louis area this week.

Key 30-year rate rises in St. Louis

The average rate on the benchmark 30-year fixed-rate mortgage rate for the St. Louis area moved upward to 3.97 percent, according to Bankrate’s national survey of large lenders. While the local rate was up 3 basis points from last week, it was lower than the national average rate of 4.09 percent. A basis point is one-hundredth of 1 percentage point.

The mortgages in the survey for the current week had an average of 0.50 discount and origination points.

With the 30-year fixed rising, it means that homebuyers and refinancers will find their borrowing costs have gone up.

The increase in the mortgage rate raised 30-year fixed-rate monthly payments on a hypothetical $165,000 mortgage to $784.88, an uptick of $2.85 from last week.

No clear direction for other St. Louis mortgage types

Conversely, the average rate for 30-year jumbo mortgages, used for loans of more than $625,500, was unchanged this week, remaining at 4.00 percent. Jumbo mortgages are used for loan amounts above limits set by the Federal Housing Finance Agency; for the St. Louis area, that limit is $424,100.

The average rate for 15-year fixed-rate mortgages rose to 3.41 percent, climbing 3 basis points from last week. Monthly payments on a hypothetical $165,000, 15-year fixed-rate mortgage followed rates upward, up $2.42 to $1,172.28.

Because the 15-year fixed is a popular mortgage for homeowners who want to refinance, the increase means that a refi is less beneficial than it would have been before the rate rise.

The popular 5/1 adjustable-rate mortgage rate held at 3.17 percent this week. 5/1 adjustable-rate mortgages allow property owners to pay a fixed rate for the first 5 years, and the rate adjusts once per year every year after. They are the most common type of variable-rate mortgage.

Compare mortgage rates in your area now.

Weekly mortgage survey

Results from Bankrate’s survey of mortgage lenders conducted December 13, 2017. Monthly payments are for a $165,000 loan. The jumbo rate is for the minimum jumbo loan amount of $424,100 in the St. Louis area.
30-year fixed 15-year fixed 5-year ARM 30-year jumbo
This week’s rate: 3.97% 3.41% 3.17% 4.00%
Change from last week: +0.03 +0.03 N/C N/C
Monthly payment: $784.88 $1,172.28 $710.87 $2,024.72
Change from last week: +$2.85 +$2.42 N/C N/C

Methodology: The “Bankrate.com National Average,” or “national survey of large lenders,” is conducted weekly. To conduct the National Average survey, Bankrate obtains rate information from the 10 largest banks and thrifts in 10 large U.S. markets. In the Bankrate.com national survey, our Market Analysis team gathers rates and/or yields on banking deposits, loans and mortgages. We’ve conducted this survey in the same manner for more than 30 years, and because it’s consistently done the way it is, it gives an accurate national apples-to-apples comparison.

To learn more about the different rate averages Bankrate publishes, see “Understanding Bankrate’s Rate Averages.”