Get a monitor and contributor to air quality data in your city.
Air Quality 
Air Monitors
Air Purifiers
For Business
News
Support
18.9K people follow this city
Katy Air Quality Map
Real-time Katy air pollution map
Pollen
What is the pollen count in Katy today?
 | Index | Very high | |
 | Tree pollen | High | |
 | Grass pollen | Very high | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in Katy?
| Weather | Mist |
| Temperature | 78.8°F |
| Humidity | 79% |
| Wind | 19.6 mp/h |
| Pressure | 29.8 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Orcutt, California | 105 |
| 2 | Corpus Christi, Texas | 84 |
| 3 | San Antonio, Texas | 77 |
| 4 | Boerne, Texas | 74 |
| 5 | Georgetown, Texas | 74 |
| 6 | Oklahoma City, Oklahoma | 72 |
| 7 | Leander, Texas | 70 |
| 8 | Round Rock, Texas | 70 |
| 9 | Austin, Texas | 69 |
| 10 | Kansas City, Missouri | 66 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
live Katy aqi ranking
Real-time Katy air quality ranking
| # | station | US AQI |
|---|---|---|
| 1 | Cimmerion | 55 |
(local time)
SEE WORLD AQI RANKING
US AQI
55
live AQI index
Moderate
Overview
What is the current air quality in Katy?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Moderate | 55 US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 14µg/m³ | |
!
PM2.5
x2.8
PM2.5 concentration in Katy is currently 2.8 times the WHO annual air quality guideline value
Health Recommendations
What is the current air quality in Katy?
 | Sensitive groups should reduce outdoor exercise |
 | Close your windows to avoid dirty outdoor air GET A MONITOR |
 | Sensitive groups should wear a mask outdoors GET A MASK |
 | Sensitive groups should run an air purifier GET AN AIR PURIFIER |
Forecast
Katy air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Wednesday, Apr 24 | Good 38 AQI US  |  | 80.6° 66.2° |  15.7 mp/h |
| Thursday, Apr 25 | Good 43 AQI US | | 82.4° 69.8° | 17.9 mp/h |
| Friday, Apr 26 | Moderate 63 AQI US | | 84.2° 71.6° | 22.4 mp/h |
| Friday, Apr 26 | Good 42 AQI US | 40% | 84.2° 71.6° | 22.4 mp/h |
| Today | Moderate 55 AQI US | 100% | 82.4° 71.6° | 17.9 mp/h |
| Sunday, Apr 28 | Good 37 AQI US | 90% | 84.2° 69.8° | 8.9 mp/h |
| Monday, Apr 29 | Good 41 AQI US | 100% | 84.2° 71.6° | 11.2 mp/h |
| Tuesday, Apr 30 | Good 48 AQI US |  | 86° 69.8° | 15.7 mp/h |
| Wednesday, May 1 | Moderate 64 AQI US | | 87.8° 71.6° | 13.4 mp/h |
| Thursday, May 2 | Moderate 67 AQI US |  | 91.4° 69.8° | 11.2 mp/h |
| Friday, May 3 | Moderate 71 AQI US | | 86° 69.8° | 15.7 mp/h |
Interested in hourly forecast? Get the app
News
The latest air quality news and resources.
Katy air quality data attribution
1Contributor
- David Power
1 station
Individual Contributor
1 Data source
Data validated and calibrated by IQAirWhere is the cleanest air quality in Katy?
AQI US, Metric