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Live AQI Checker By City Step By Step

Live AQI Checker by City runs in three steps: open the tool, provide a city, then read the result. This page walks through what each step expects.


Step 1 - open the tool

Go to Live AQI Checker by City. Nothing needs to be installed or signed in before you start.


Step 2 - provide your input

Type a city name and press Check air quality, or press Use my location so the browser supplies your coordinates instead - either way, no account or install is needed.


Step 3 - read the result

The result shows the current US AQI number, its category band, and PM2.5 / PM10 / ozone levels, plus a 3-day peak-AQI forecast table that answers "will it improve tomorrow" for wildfire-smoke or pollution spikes.

Data comes live from Open-Meteo's free air-quality API - nothing is uploaded and no account is required; the city search uses Open-Meteo's geocoding API.

Reports outdoor ambient air quality only - not an indoor air-quality sensor reading and not a substitute for local health advisories during a smoke event.

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Reviewed by the Free Tool Online editorial team · Tested in the current versions of Chrome, Firefox, Safari, and Edge before publishing. No account is needed to use any tool. Report a bug - we triage within 72 hours. · Last refreshed April 2026.

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