Colorado Springs, CO Air Quality Index (AQI) Today

That reading and color are today’s Colorado Springs call, nothing more. It decides the Garden of the Gods hike, the kid’s soccer practice, or whether the windows stay open tonight. BreatheCheck tracks the air quality Colorado Springs has actually breathed since we began measuring here, not just the number above. Set your own number and get told when the Front Range crosses it.

How does today compare with Colorado Springs’s record so far?

Since 16 August 2026 we have recorded 30 days for Colorado Springs. 0 went above AQI 100, and the highest daily maximum was 100, on 17 August 2026. The day-by-day record is further down.

One reading won’t tell you if today is ordinary or a spike. Our own record, further down this page, rebuilds the air quality Colorado Springs has seen since we began measuring here, from the same hourly AQI feed as the number above.

The page also carries a running count of days above AQI 100 since we began counting. IQAir, AccuWeather, aqicn and Colorado’s own monitor grid show today’s number and stop there. A bad afternoon that clears by the next morning still shows up here instead of disappearing.

Why is it hazy in Colorado Springs today?

Three things can put more haze in the sky than the number admits. The AQI smooths recent hours together, weighted toward the latest, so one bad hour takes a few hours to show up in full. Smoke can sit aloft, above the ground monitor, while being exactly what you see over the Front Range. And the nearest station may be miles from you.

A calm reading downtown says less about Security-Widefield or Black Forest than it looks like it does. None of that makes the haze fake — one number averages one location, not your block. Sunlight-cooked ozone and a station you can’t see works through the general case.

What is causing the bad air in Colorado Springs?

Ground-level ozone, the pollutant that dominates Denver’s summer as well. Colorado Springs sits about 60 miles south of Denver on the same Front Range corridor, and ozone doesn’t respect a county line: the corridor’s oil-and-gas basin and vehicle traffic feed one regional pollutant across all of it.

Colorado’s state monitoring network, the same one that reports Denver’s numbers, runs a station here too, logged under the code ACAD. On August 14, 2026, colorado.gov’s own detailed air quality summary listed Colorado Springs at 80, with an ozone reading of 64 parts per billion. Denver’s own reading sat at 84 that same day. Colorado Springs sits downwind of Denver’s share of that pollutant as often as it produces its own.

Winter can bring a version of Denver’s brown cloud too — a temperature inversion trapping cool, dense fine-particulate air, PM2.5, against the base of the mountains. Windy days off the plains east of the city can also raise coarse PM10 dust, a different particulate matter mechanism than the inversion’s fine PM2.5. We haven’t found Colorado Springs-specific community reporting to confirm how often or how visibly either pattern happens here. Unlike Denver, this city has almost no local forum discussion of its own air in what we could find. That gap is worth stating plainly rather than papering over with borrowed Denver color.

What makes the call different in Colorado Springs?

Three answers, not two, and the local number decides which. Go on a normal reading. Short and unloaded: a shorter loop at Garden of the Gods instead of the full trail. Don’t go once the color turns red.

Colorado Springs shares a single Front Range ozone alert with Denver and Fort Collins, and one regional call can cover all three cities on a day when only one of them actually looks hazy — which is exactly why the local number should decide the outing. EPA’s everyone-warning begins at 151, Unhealthy. 201 through 300, Very Unhealthy, repeats that warning at a more serious level, not a different group. Past roughly 200, the plan moves indoors regardless of what the corridor alert said this morning.

What AQI should you stay inside?

No statewide Colorado rule sets an AQI cutoff for schools or daycares, at least nothing this project has confirmed. Nor does any other state; the Washington and Minnesota figures are one teacher’s and a few parents’ descriptions of their own centres. Which states name a number, and which don’t has the list. Ask your provider for the written version.

Ozone along the Front Range shifts personal thresholds the same direction smoke does elsewhere, and the numbers people actually use sit well under the EPA’s single sensitive-groups line regardless. On r/Marathon_Training, a runner named a figure: “I’ll run in up to 110 because…error bars.” An asthmatic runner logged 156 runs against AQI instead and set a lower ceiling, 60 — “my lungs struggle regardless of how well I’ve trained,” even though EPA calls nothing under 100 unhealthy. Their log: 87% of runs under 50 went fine, 42% between 50 and 70, just 12% past 70. Parents online land closer to 100.

Wildfire smoke, when it reaches the corridor, shifts that table down further still — about one EPA band. EPA’s band reads 101–150, Unhealthy for Sensitive Groups — their term, not a judgment on any one set of lungs. Indoors, default to a portable HEPA purifier or a Corsi-Rosenthal box; one builder priced a 12x14 bedroom’s worth at $130. A whole-house MERV-13 swap needs a static-pressure check from a licensed tech first. What to run indoors, and in what order has the detail.

Why our number may not match what you are seeing and smelling

Ground-level ozone is invisible and odorless wherever it forms, Colorado Springs included. On a clear, still summer afternoon the reading can run higher than the sky suggests. The same gap shows up in Denver, Phoenix and Los Angeles. There’s no smelling your way to a safe read on it.

The reverse also happens. Smoke drifting down from a fire well outside the metro can sit aloft, visible against the mountains. The ground-level monitor can read a lower number than the sky suggests, because the smoke hasn’t mixed down to where the sensor sits yet. Both directions come from the same 24-hour-average, one-station design, not from the pollutant behaving strangely.

Today’s reading for Colorado Springs comes from AirNow’s Colorado Springs reporting area, whose reference point sits about 9.5 miles from the metro centre. As of 14 September 2026 at 22:12 UTC.

Colorado’s own state grid names a Colorado Springs station, ACAD, on its public summary page. We haven’t independently verified that code’s exact siting, or how far it sits from any given neighborhood. A station miles off under-reports whichever side of the metro sits farthest from it. What we can and can’t confirm about a station’s siting is documented plainly.

Denver’s Front Range ozone runs on the same regional mechanism, and Fort Collins sits further up the same corridor.