Air Quality in Oklahoma City, Oklahoma — Live
Live readings from PurpleAir sensors across Oklahoma City — with free alerts the moment ozone season turns unhealthy.
AQI 74 from 3 PurpleAir sensors · Trending up · data from PurpleAir
As of , the air quality in Oklahoma City, Oklahoma is AQI 74 — Moderate and rising — with PM2.5 at 21.3 µg/m³, the median of 3 live PurpleAir sensors reading 69 to 82. Canairy's verdict: Mostly clear.
For scale, that PM2.5 reading is about 1.4 times the World Health Organization's 24-hour guideline of 15 µg/m³. The WHO figure is a daily average and this is a live reading, so read it as a sense of magnitude rather than a formal exceedance — a brief spike and a bad day are not the same thing. More on the WHO guidelines
Free to download · Live data from PurpleAir & public monitors
Live PurpleAir sensor map for Oklahoma City and Norman, Edmond, Moore, Midwest City. Every dot is a real sensor, color-coded by current air quality.
Sensor by sensor in Oklahoma City
The sensors Canairy reads in Oklahoma City agree right now — all 3 sit in the Moderate band, a 13-point spread — so the city-wide number is a fair description of the whole area today.
| From city center | AQI | Category |
|---|---|---|
| 1.4 mi ENE | 74 | Moderate |
| 1.8 mi ENE | 69 | Moderate |
| 1.9 mi E | 82 | Moderate |
Oklahoma City's air is usually unremarkable, and that is genuinely good news: the city sits on wide-open plains with no valley or mountain ring to trap anything, so most days the wind just carries pollution on through. The recurring problem is ground-level ozone. Hot summer afternoons, heavy traffic at the I-35/I-40 crossroads, and emissions from the region's oil and gas industry combine often enough that the Association of Central Oklahoma Governments (ACOG) runs a standing Ozone Alert program to warn residents before the air turns unhealthy.
What Canairy does for Oklahoma City
A clear verdict
Not just a number — a plain-English call for Oklahoma City: open the windows, or keep them shut.
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A heads-up before it's bad
Trend alerts catch the air turning, so you can close up the house before the smoke settles in.
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What the air in Oklahoma City is doing next
| When | AQI | Expected air quality | Main pollutant |
|---|---|---|---|
| Today | 40 | Good | PM2.5 |
| Tomorrow | 30 | Good | ozone |
| Wednesday | 50 | Good | ozone |
Widespread rain showers will develop, wash away pollutants, and improve air quality. Areas of haze will result in occasional moderate fine particulate matter, particularly before and between periods of rain. The active pattern with occasional rain showers will persist through the weekend and prevent the buildup of pollution. Even after a cold front switches the breezes to northerly late on Monday, the warm weather will persist. Another episode of widespread rainfall late next week will ensure good air quality and improve soil moisture.
Forecast from EPA AirNow for the Oklahoma City reporting area. Canairy watches the live sensors against it and tells you when the air actually crosses your threshold, rather than leaving you to check.
Central Oklahoma runs its own Ozone Alert program
ACOG issues a Central Oklahoma Air Quality Alert Day whenever forecasters expect ozone to climb into unhealthy territory across the eight counties of the metro region, including Oklahoma, Cleveland, and Canadian counties. On alert days, the program asks residents, businesses, and industry to voluntarily cut ozone-forming emissions — carpool instead of driving alone, refuel after dark, put off mowing the lawn — the same playbook used by similar voluntary programs in cities trying to stay ahead of a federal nonattainment designation.
The incentive is real money, not just air-quality bragging rights. ACOG's own Cost of Nonattainment Study estimates that if the Oklahoma City metro area is ever formally designated in violation of EPA ozone standards, the resulting permitting restrictions and compliance costs could run the region $9.6 to $15.2 billion over the next 20 to 30 years. That is the reason the alert system exists at all: staying voluntarily under the line is far cheaper than falling under it.
Summer heat and traffic are what actually drive a bad air day here
Ozone season in Oklahoma City runs from roughly April through November, tracking the roughly 145 days a year the city spends above 80°F — heat is the ingredient that cooks vehicle and industrial exhaust into ground-level ozone. The number of unhealthy-for-sensitive-groups days has moved with that trend: air-quality tracking shows just 5 such days in 2015 climbing to 45 by 2018, and state-of-the-air reporting has graded the metro an F for high-ozone days over recent three-year tracking periods.
The two biggest contributors are straightforward. Oklahoma City's roughly 2.3 million daily vehicle trips, funneled through the interchange of I-35 and I-40 near downtown, are the leading source of the region's air pollution. Add to that the exhaust and venting from central Oklahoma's active oil and gas production, plus wind-blown dust off the farmland and cattle country that surrounds the metro, and you get the recurring mix behind the city's worst days.
The open plains help, but they don't erase the problem
Oklahoma City sits at about 1,198 feet elevation in the Sandstone Hills, a landscape of gentle 250-to-400-foot rises rather than anything resembling a basin. The North Canadian River, renamed the Oklahoma River inside city limits, cuts through downtown, but there is nothing about the terrain that traps air the way a valley does in parts of California. Prevailing winds out of the south and south-southeast through summer, shifting northerly in winter, usually keep pollution moving rather than letting it pool.
That openness is why Oklahoma City has a real claim to being, in its own description, one of the larger US cities generally in compliance with the Clean Air Act — but it does not make ozone season disappear. On hot, high-pressure, low-wind afternoons the same air that would normally clear out instead sits and cooks, and fine-particle data has moved the same direction: the city's PM2.5 average rose to 9.5 micrograms per cubic meter in 2020, up 4.4 percent from the year before. Wind helps Oklahoma City more than it helps a lot of cities Canairy covers — it just isn't a guarantee.
Oklahoma City air quality FAQ
What is the air quality in Oklahoma City right now?
As of November 2, 2026 at 8:48 AM CST, the air quality in Oklahoma City, Oklahoma is AQI 74 — Moderate — with PM2.5 at 21.3 µg/m³, the median of 3 live PurpleAir sensors. Sensitive groups may want to take it slower outside.
Why does Oklahoma City have ozone alert days in summer?
Ozone season here runs roughly April through November, when the city's 145-plus days above 80°F provide the heat that turns vehicle and industrial exhaust into ground-level ozone. ACOG, the regional government association, forecasts these days in advance and calls a Central Oklahoma Air Quality Alert Day so residents and businesses can voluntarily cut back on emissions before the air actually turns unhealthy.
What causes Oklahoma City's worst air quality days?
Mostly heat combined with traffic and industry. The metro's roughly 2.3 million daily vehicle trips through the I-35/I-40 crossroads are the single biggest source, joined by emissions from central Oklahoma's active oil and gas production and, on windy days, dust blown in from the surrounding farmland and ranch country. Unlike many cities Canairy covers, wildfire smoke is not the driving story here.
What the AQI numbers mean
| AQI | Category | What it means for you |
|---|---|---|
| 0–50 | Good | Open the windows. Great for outdoor activity. |
| 51–100 | Moderate | Sensitive groups may want to take it slower outside. |
| 101–150 | Unhealthy for Sensitive Groups | Kids, elderly, and respiratory conditions stay closer to home. |
| 151–200 | Unhealthy | Skip outdoor exercise. Close windows. |
| 201–300 | Very Unhealthy | Limit time outside. N95 if you must go. |
| 301+ | Hazardous | Health emergency. Stay inside, run filtration if you have it. |
Canairy lets you tighten these bands if you’re more sensitive than the EPA default, so an alert can fire before the official category changes. How to read the Air Quality Index
Where these readings come from
The AQI at the top of this page is the median of the 3 curated PurpleAir sensors Canairy tracks in and around Oklahoma City, with outliers set aside so that one sensor brought indoors — or parked beside a barbecue — cannot set the number for a whole city. Every sensor behind it is listed above with its distance and bearing from the city center. There is no black box here.
In the app, a place you save resolves the same way first. When no neighborhood sensor is reporting it falls back to the nearest EPA AirNow monitor, and anything modeled rather than measured is labelled a regional estimate rather than passed off as a sensor reading. How low-cost sensors compare to regulatory monitors
About Canairy
Canairy is free to download. The free plan covers one saved place with live readings, a plain-English verdict, and push alerts when the air crosses a threshold you choose. Paid plans add more places, faster refreshes, and SMS alerts. It is built by two parents in Sonoma County, California, who got tired of guessing whether it was safe to send the kids outside. Why we built it
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Air quality near Oklahoma City
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