The average 30-year fixed-rate mortgage was 6.35% for the week ending September 5, according to data from Freddie Mac. It was unchanged from the prior week.

Mortgage rates have declined in recent months, enough to spur some activity in the housing market, but not a ton. What would it take to get things really moving again?

Redfin CEO Glenn Kelman (RDFN) tells Yahoo Finance that, "if we go into next year with a rate anywhere near 6%, you're going to see a significant increase from the level of home sales we have today." Kelman expects that the US housing market will get "some kind of bounce" next year due to increased affordability. But to see a boom? Kelman thinks mortgage rates will have to drop down to the low 5% range to get current homeowners with low mortgage rates off the sidelines and into the market.

Be sure to watch the full interview with Redfin CEO Glenn Kelman.

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This post was written by Stephanie Mikulich.