Smoke forecast
Where the smoke over Milwaukee was, and where the model sends it next. Scrub back 12 hours or forward 48. Every hour shown is a model estimate, not a measurement.
The scale is anchored to visibility, because that is the one reading you can take yourself without trusting a model. Distances are approximate.
From South Shore Park the downtown skyline is sharp three miles north, the Hoan Bridge reads clean, and the horizon over the lake is a hard line.
Downtown still reads from South Shore but has gone flat and grey, and the lake horizon has softened into nothing.
The US Bank Center is still the tallest thing from the south side, three miles off, but the buildings around it have merged into one mass.
From the Art Museum the Hoan Bridge holds about a mile and a half south, while the towers behind downtown fade out.
The top of the US Bank Center goes. From the lakefront you lose the Hoan Bridge under a mile away.
Milwaukee sits on the same Canadian corridor as Chicago and Minneapolis, taking smoke from Ontario, Manitoba, and Quebec on northerly flow across the upper Midwest. Lake Michigan adds a wrinkle: the lake breeze can hold a plume against the shoreline or push it inland depending on the hour, so conditions downtown and conditions ten miles west can differ noticeably.
June 2023 put Milwaukee under the same Quebec smoke that hit Chicago and Detroit, with air quality among the worst in the country for parts of two days.
The verdict at the top of this page answers that for Milwaukee specifically, and Milwaukee is a city where "specifically" carries weight. The lake breeze can hold a plume against the shoreline or push it inland depending on the hour, so the air on the lakefront and the air ten miles west can differ noticeably at the same moment. Everything shown is a model estimate rather than a measurement at your address.
That is the headline answer above: the clear time, the first stretch of at least six straight hours below the Hazy threshold. Milwaukee has a local reason that answer can wobble. The lake breeze turns through the day, so a plume can be pinned against the shore in the afternoon and released in the evening without anything upwind changing at all, which is exactly the kind of hour-long dip the six-hour hold exists to ignore.
The source is the same Canadian corridor that feeds Chicago and Minneapolis: Ontario, Manitoba, and Quebec on northerly flow across the upper Midwest. What Lake Michigan adds is timing rather than cause: it can keep the smoke over the shoreline for hours after the inland air has improved. June 2023 is the local marker, when Quebec smoke put Milwaukee among the worst air quality in the country for parts of two days.
Ontario, Manitoba, and Quebec, travelling southeast across the upper Midwest on northerly flow. Minneapolis usually sees it first, which is why it is the upwind link on this page, and Chicago sits under the same plume ninety miles down the shoreline. Run the timeline backward on the map and the plume tracks down across Wisconsin rather than in off the lake.
The five-day strip above gives the day-by-day read and the timeline covers forty-eight hours hour by hour. One practical note for Milwaukee: if you are choosing between a lakefront plan and an inland one, the lake breeze means the strip is a better guide to the day than the current hour is to the afternoon. Forecasts are sharpest one to two days out and the page shows where the models disagree.
The lake horizon is the most sensitive test you have. From South Shore Park it reads as a hard line on a clean day, and it softens into nothing before the skyline looks much different. After that, whether the US Bank Center is still the tallest distinct thing from the south side or has merged into one mass with the buildings around it. The Hoan Bridge from the Art Museum is the close check, and losing it under a mile away is the bottom.
Where Milwaukee's smoke usually shows up first, and the places that share its air.
Ontario and Manitoba smoke moving southeast across the upper Midwest reaches the Twin Cities before it reaches the Milwaukee lakefront.
Most smoke in the eastern half of the continent is Canadian, and it is old by the time it arrives.
Smokeshow is for informational and educational purposes only. It is not health, medical, or safety advice. Forecasts are model estimates and can be wrong, sometimes by a lot. Descriptions of what you might smell, see, or feel are generalizations, not predictions about your body. For decisions about your health, outdoor activity, or air quality safety, rely on official sources like AirNow.gov, the National Weather Service, and your local health authorities, and talk to a medical professional about your own situation.