Daily air tracker
Katy air quality
Greater Katy air can change with heat, traffic, pollen, smoke and weather. Here's today's reading.
Updated daily
Katy air quality & pollen
Live U.S. AQI for the Greater Katy with particulate readings, the next 24-hour peak, and what it means for your day.
Why the Greater Katy differs
Traffic, industrial activity, regional ozone and still weather can all affect local readings.
Best air of the day
Ozone is often lower earlier in the day, but check the current reading before outdoor exercise.
Smoke and high-ozone days
Regional smoke and summer heat can change air quality quickly. Check before outdoor sports practice.