This month's update has a clear headline, and it is the kind of number buyers and sellers should build their plans around: mortgage rates jumped again, and this time by a meaningful step. Freddie Mac's Primary Mortgage Market Survey released September 17 put the average 30-year fixed rate at 6.95%, up from 6.76% a week earlier and a new high for the year. The 15-year fixed averaged 6.26%, and a year ago the 30-year sat at about 6.26%. One note up front, the same one I give every update: no finalized September MLS dataset is published yet, so the figures below come from the most recent available county and city-level reports, and those sources vary by methodology. My job is to tell you what the numbers mean for your situation, not just recite them.
What 6.95% means for your payment
Let's make the rate concrete. On a $350,000 mortgage, the difference between a year ago (about 6.26%) and today (6.95%) is roughly $160 more a month in principal and interest, about $1,900 over the course of a year. That is real money, and it is why buyers are payment sensitive right now and why sellers feel the squeeze when a home is priced even a little high.
The forecasts have moved up since the early-September updates, and that matters for your planning. Fannie Mae's September outlook now sees the 30-year averaging about 6.8% by the end of 2026, easing to about 6.7% across 2027, and the Mortgage Bankers Association raised its fourth-quarter forecast to 6.8% as well, holding that level through mid-2027. No one can promise a number, yet the direction matters less than your own math: every month you wait, you are paying someone else's mortgage, and homes in steady markets rarely get less expensive.
Lake County: prices holding, list prices testing higher
Lake County's most recent closed-sale read puts the median near $267,760 on February data, up about 7.4% from a year earlier, with typical market time around 43 days. The fresher signal is on the listing side: median list prices have climbed from about $299,000 in April to $314,900 in August, so sellers are testing higher ground even as buyers stay choosy. Highland ran near $265,874 in June, up about 1.5% year over year, one of the county's most consistent values.
Will and Cook counties: more choices, steady pricing
The Illinois side tells a two-part story. Will County's February closed sales were down about 21% from a year earlier with a median sale price near $335,510, about 1.2% below last year, yet median list prices run about 2.4% higher at roughly $414,050, with about 34 days on market. Cook County's median sale price came in near $340,000, up about 3.1% year over year, with typical market time around 36 days. More choices for buyers, firmer pricing for sellers: that combination puts the emphasis on pricing and condition more than ever.
The community reads
Illinois
Frankfort's July median ran near $629,585, down about 5.2% from a year earlier, although the number shifts with the window: another tracker read landed closer to $550,000, down about 0.9%. Orland Park has held steadier at a three-month median near $385,000, up about 5.5% year over year. Tinley Park's three-month median runs near $319,785, roughly flat, with Zillow's average near $329,388, up about 3.9%. Mokena posted the strongest move of the group, a June median near $464,747, up about 10.4% year over year.
Indiana
Crown Point's mid-year median settled near $329,803, up about 11.2% from a year earlier, keeping its run as one of the strongest performers in the region. Munster held near $375,000, roughly flat year over year. Schererville's median ran near $350,309 in June, up about 3%, with Movoto logging about $347,500 for July. St. John tracked near $464,767 in July, up about 8.1%, while its three-month figure ran closer to $440,000.
What this means for sellers
At 6.95%, buyers feel the rate before they feel the house, so overpricing carries more risk than it did even a month ago. In the South Suburbs, where inventory keeps growing, your opening price is your best tool, and condition and presentation decide how quickly the right buyer shows up. In Lake County towns where list prices keep testing higher, honest pricing still wins the weekend.
What this means for buyers
More inventory, more realistic pricing and sellers more willing to talk: this is genuinely a more buyer-friendly fall than we have seen in a couple of years in many of the communities I serve. The trade-off is the rate, yet the math has a way of surprising people. Get pre-approved, know your reliable payment and be ready to move when the right home appears, because the good ones still do not linger.
One more thing
I am licensed in both Illinois and Indiana, so I can compare the South Suburbs and Northwest Indiana in a single conversation, property taxes included. If you are weighing a move, sizing up your equity or getting ready to list, I would love to run the numbers with you and build a plan that fits your timeline. Call me at (708) 252-1490 or schedule a call any time. You Can With Joanne!™