Fond du Lac, WI Housing Market Forecast — September 2026
Typical home value $292,532 as of August 2026 · Overheating
Blue: typical Fond du Lac home value (Zillow ZHVI, smoothed and seasonally adjusted), last 10 years. Amber dash: forecast path through September 2027; dotted lines mark the 80% confidence range, which widens with the horizon.
Why the model sees it this way
Sialim's model forecasts the typical Fond du Lac home value will rise 0.3% in September 2026, from $292,532 to about $293,557. The 80% confidence range runs from $293,188 to $293,988.
Prices rose an average of 0.15% per month over the past three months, and the market is up 4.7% from a year ago.
The 30-year mortgage rate sits near 6.7% (restrictive for affordability); for-sale inventory is about even with a year ago (-4%); national unemployment is 4.1%. For this metro the price-only model outperformed the macro-augmented one in backtesting, so the forecast leans on the price trend itself.
Over the most recent six-month test window, this model's predictions for Fond du Lac were off by 0.3% on average. Smaller is better; anything under 1% is strong for monthly home values.
How this compares with Zillow's forecast
| Horizon | Sialim | Zillow's forecast |
|---|---|---|
| Next month | +0.35% | +0.40% |
| Three months | +1.68% | +1.20% |
| Twelve months | +4.80% | +4.60% |
Both forecasts point the same direction for Fond du Lac over the next twelve months. Zillow forecast © Zillow, shown for comparison; horizons are aligned to the nearest published month. Agreement or disagreement between the two models is a useful signal either way.
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Frequently asked questions
What is the Fond du Lac home value forecast for September 2026?
$293,557, a +0.35% change from the latest value of $292,532. The 80% confidence range is $293,188 to $293,988.
Is the Fond du Lac housing market cooling or heating up?
Sialim classifies Fond du Lac as "Overheating". Prices are rising well above the national norm.
What is the Fond du Lac home price forecast for 2027?
Sialim's model projects $306,585 by September 2027, a +4.80% change from today's $292,532. The 80% range is $302,439 to $310,650; year-ahead forecasts carry much wider uncertainty than next-month calls.
How accurate is this forecast?
Over the most recent six-month test window, this model's Fond du Lac predictions were off by 0.3% on average.
Model details
Forecasts come from Sialim's proprietary forecasting engine, which runs several competing model specifications for every metro, backtests them against what actually happened, and publishes the winner for each horizon. Trained on 214 monthly observations (2008-11-30 to 2026-08-31). This metro's market heat index reads 96, with 0.2% of listings showing a price cut. See the methodology for how forecasts are built, and the ZHVI guide for what the underlying index measures.
Forecasts are model output, not advice. Data: Zillow ZHVI (© Zillow), Freddie Mac via FRED, US Bureau of Labor Statistics via FRED.