Here is every open house scheduled this weekend across Williamson, Jackson, Franklin and Union counties. There are three of them, and all three are in Williamson.
The useful part is how they are arranged. Two are in Herrin on Saturday, back to back, about a mile apart — one ends at one o'clock and the other starts at two. If you have a free Saturday you can walk through both without hurrying, and they sit at opposite ends of the price range, which makes them genuinely worth doing together.
Saturday, September 19
🏠 Indian Hill Dr, Herrin — 10:00 AM to 1:00 PM
The bigger of the two Herrin houses and the one with the longer window — three full hours, so there is no need to plan your morning around it. Seventeen hundred square feet at $146 a foot in a town whose twelve-month blended median sits around $134,000, so this is above the middle of the Herrin market and priced like it. It has already come down ten thousand dollars.
🏛️ N 26th St, Herrin — 2:00 PM to 4:00 PM
Starts an hour after the first one closes, which is not an accident worth wasting. Eight hundred and eighty square feet is genuinely small — three bedrooms and one bath in that footprint means compact rooms, and you should go look rather than imagine it. At $150,000 it is right at the Herrin median, and it has come down fifteen thousand.
Sunday, September 20
⭐ Sycamore Rd, Carterville — 1:30 PM to 3:30 PM
The weekend's only Sunday showing and its top end. Twenty-six hundred square feet on two acres in Carterville, at $183 a foot. Worth knowing before you go: Carterville has the newest housing stock of any town we cover — about a third of what is for sale there was built in 2000 or later — and two-acre lots inside a town that size are not common. If land and space are what you are shopping for, this is the one of the three to make time for.
What About the Other Three Counties?
Nothing. Jackson, Franklin and Union counties have no open houses scheduled this weekend — not a thin lineup, an empty one.
A note on that, because it is easy to be misled here. Search any of those three counties on the big listing sites this week and you will get a screen full of results. Almost all of them are in Missouri. The Union County page returned eighteen listings and exactly one was in Illinois — and that one was in Murphysboro, which is Jackson County, two weeks out. We check the state and the county on every address before it goes in this post, which is why our list is shorter than what you will see on a portal and why everything on it is actually here.
💰 Walking In Without a Pre-Qual Is a Browse, Not an Offer
If one of these turns out to be the one, the seller's agent will ask what you are approved for before they take you seriously. Free, no-pressure pre-qualification with Jarod Sanders, SIRE's in-house lender.Jarod Sanders · CrossCountry Mortgage · NMLS #2337228
Both Saturday Houses Have Already Come Down
One pattern is worth pointing out, carefully.
Both Herrin homes are showing price reductions — ten thousand off one, fifteen off the other. We do not know why either seller adjusted, and we are not going to speculate about anybody's situation in public. But a reduction followed by an open house is, at minimum, a seller doing two things at once to get attention.
That connects to something we found in Marion yesterday: the town has roughly two months of housing supply, which is a seller's market by any standard measure, and yet the median home still takes about 57 days to sell. Tight inventory has not produced a frenzy. Sellers who priced ambitiously are still discovering that scarcity alone does not close the gap — and the ones who adjust and then open the doors are the ones behaving like they want it sold.
If you are a buyer, that is worth knowing walking in. These are not take-it-or-leave-it situations.
Three Houses Is Not the Market
The honest limitation of any open-house roundup: three homes are three homes. There are hundreds for sale across these four counties right now, and the one that fits you is probably not among the three that happen to have a sign out this weekend.
The open house is a convenience, not a gate. Any home listed anywhere in Southern Illinois can be shown to you by a SIRE broker, on an evening or a weekday or whenever actually works, usually within a day or two. You do not have to wait for somebody to schedule a Saturday.
Everything on the Market Across the Four Counties
Live listings across Williamson, Jackson, Franklin and Union — newest first, the same feed our brokers work from.
What Greg Holthaus Tells People About Open Houses
Go to them. They are free, nobody is going to make you sign anything, and walking through four or five houses teaches you more about what you actually want than a month of scrolling ever will. The two in Herrin on Saturday are a genuinely good afternoon for that — same town, ninety minutes apart, a hundred thousand dollars apart in price. You will learn something about your own priorities by standing in both.
What I would not do is treat the open-house calendar as the list of what is available. It is the list of what has a sign out. Those are different lists, and the second one is about fifty times longer.
And take somebody with you who will say the unwelcome thing about the foundation while you are still standing in the driveway, instead of after you are emotionally committed. That is most of what we are for.
Open House FAQ
What open houses are in Southern Illinois this weekend, September 19–20?
Do I need an agent to attend an open house?
Can I see a home that is not holding an open house?
Does a price reduction mean a seller will accept a low offer?
🔑 Want to See Something That Is Not Open This Weekend?
Three open houses is three houses. There are hundreds for sale across these four counties, and a SIRE broker can get you inside any of them — on your schedule, not the seller’s. Tell us what you are looking for.
📱 Got a Question About This Market? Text Greg.
Buying? Selling? Not sure where to start? Text Greg Holthaus directly — just tell him you saw his blog. He'll help you think through your decision, match you with the best broker for your situation, and point you in the right direction. He's open to a text any time.
Text Greg · 618.925.8654
Who is Greg Holthaus?
Greg Holthaus is the Owner and Designated Managing Broker of Southern Illinois Realty Experts, with 25+ years in Southern Illinois real estate and more than 10,000 transactions closed. He leads a full-service operation — home sales, mortgage, title, and property management under one roof — with offices in Marion, Herrin, and Carbondale. Meet Greg ›
About this list: Open house dates and times come from local MLS listing data as published on the listing records, checked on September 17, 2026 for the weekend of September 19–20. Every address was verified to be in Illinois and in Williamson, Jackson, Franklin or Union County before inclusion — county open-house searches are heavily padded with out-of-area results, and this week the Union County search returned 18 listings of which only one was in Illinois. Price reductions shown are as published on the listing records; we do not know or speculate about why any seller adjusted a price. Price-per-square-foot figures are calculated from the listed price and published square footage. Herrin’s twelve-month blended median (~$134,000) is from local MLS closed-sale data for September 2025 through August 2026 and is a volume-weighted approximation, not a true twelve-month median. Carterville housing-stock figures are from our September 11 analysis of active listings in ZIP 62918. Open houses get cancelled, rescheduled and added at short notice — call us before you drive, and we will confirm. Listings are represented by various brokerages. Nothing here is an appraisal, a loan offer, or a rate quote. Southern Illinois Realty Experts is an Equal Housing Opportunity brokerage.