Air Quality in Overland Park, Kansas — Live

Live readings from PurpleAir sensors across Overland Park — with free alerts when ozone season turns the air unhealthy.

Live Overland Park AQI from nearby PurpleAir sensors loads when this page opens in a browser, along with a live sensor map covering Overland Park and Leawood, Olathe, Lenexa, Shawnee.

Overland Park's air is clean for most of the year — the flat Kansas plains don't trap pollution the way a mountain valley does, and winter here is usually just cold and clear. The real story is ozone season: every year from March through October, the Mid-America Regional Council runs a daily SkyCast forecast for the whole Kansas City region, because hot, humid afternoons combined with heavy interstate traffic regularly push ground-level ozone into Ozone Alert Day territory.

Canairy watches the sensors around your home, your kids' school, and everywhere else you care about, and tells you in plain English when the air changes enough to matter.

Ozone Alert Days are the real forecast to watch

Every year from March 1 through October 31, the Mid-America Regional Council issues a daily SkyCast ozone forecast for the Kansas City region, color-coded green through red, and Johnson County government keeps its own Ozone Alert Days page because the underlying chemistry is straightforward: gasoline vapors and vehicle exhaust react with heat and strong summer sun to form ground-level ozone. Overland Park sits right at the junction of the I-435 beltway and US-69, two of the busiest commuter corridors in the metro, which keeps the raw ingredients for ozone flowing all summer.

On an orange or red SkyCast day, Johnson County's own advice is to reschedule strenuous outdoor activity to before 11 a.m. or after 8 p.m., combine errands to cut down on driving, and wait until dusk to refuel a car, since gasoline vapors are part of the problem. Lawn and garden equipment alone is estimated to account for about 9 percent of the region's ozone-forming emissions, which is why alert-day guidance specifically calls out mowing. The American Lung Association's 2025 State of the Air report ranked the Kansas City metro 34th worst in the country for ozone — a sign this is a recurring seasonal pattern, not a rare event.

A commuter suburb built on two highways

Overland Park grew up around the interchange of Interstate 435, the Kansas City area's beltway, and U.S. Route 69, and that road network is still central to daily life here — I-435 and U.S. Route 50 also run concurrently east-west through the middle of the city. It's also one of the metro's biggest job centers: T-Mobile inherited Sprint's old corporate campus and remains the city's largest single employer, with roughly 6,300 workers, alongside engineering firm Black & Veatch and the Overland Park Xchange, the third-largest office building in the Kansas City metro.

That combination — heavy commuter traffic funneling through a couple of highway corridors, plus a large daytime office population, inside a metro that already trends toward the higher end of national ozone rankings — is exactly the mix that keeps ozone-forming emissions elevated through the summer half of the year. It's part of why the air on a hot July rush hour can read noticeably worse than the same spot at 6 a.m., even on a day that never reaches an official Alert Day.

The one real exception: 2023's Canadian wildfire smoke

Overland Park isn't a wildfire town, but it isn't immune to smoke from somewhere else. In June 2023, smoke from record wildfires burning in Quebec and Ontario drifted more than a thousand miles south and blanketed the Midwest; Kansas City spent part of that week under an air quality alert with conditions rated unhealthy for sensitive groups. NASA's Earth Observatory tracked the same smoke plume settling over the upper Midwest that month.

That kind of event is genuinely rare here — most years, Overland Park never sees anything like it — but it's a reminder that a clean local geography doesn't make a city smoke-proof. When it does happen, it stacks directly on top of whatever the local ozone forecast already says, which is exactly the kind of moment Canairy is built to catch.

Overland Park air quality FAQ

What is the air quality in Overland Park right now?

This page shows the current AQI for Overland Park, calculated from PurpleAir sensors across the city and updated continuously. The map below shows every live sensor, so you can check the reading closest to your own neighborhood.

Why does Overland Park get Ozone Alert Days in summer?

From March through October, the Mid-America Regional Council's SkyCast forecast tracks ground-level ozone for the whole Kansas City region, and Overland Park's mix of hot, humid afternoons and heavy traffic on I-435 and US-69 regularly pushes readings into orange or red Alert Day territory. On those days Johnson County recommends moving strenuous outdoor activity to before 11 a.m. or after 8 p.m. and cutting back on driving.

Does wildfire smoke ever reach Overland Park?

It's rare, but not impossible. In June 2023, smoke from historic wildfires in Quebec and Ontario drifted over the entire Midwest and put Kansas City under an air quality alert for several days. Overland Park doesn't have a local fire season the way parts of the West do, but smoke from far-off fires can still show up here occasionally.

What AQI level is unhealthy?

Under the US EPA scale, AQI 0-50 is Good and 51-100 is Moderate. From 101 the air is Unhealthy for Sensitive Groups - kids, older adults, and people with asthma or heart conditions - and above 150 it's Unhealthy for everyone. Canairy translates these numbers into a plain-English verdict, like whether to close the windows or move a workout indoors.

Where does Canairy's Overland Park data come from?

Readings come from PurpleAir's network of laser particle sensors across Overland Park and surrounding towns, cross-referenced with government monitors and the Google Air Quality API. You can see every sensor behind your numbers on the live map - there's no black box.

Is Canairy free?

Yes. The Canairy app is free to download and includes live air quality for all your saved places, plain-English verdicts, and free push alerts when the air crosses your threshold. A paid plan adds extras like SMS text alerts.

Get Canairy free on Google Play.