What is the PM10 level in Katy, Texas at the moment?

The PM10 concentration in Katy, Texas is 37.671 μg/m3 at the moment.

What is the sulfur dioxide (SO2) level in Katy, Texas at the moment?

Currently, Katy, Texas has a sulfur dioxide (SO2) concentration of 0.865 ppb.

What is the ozone (O3) level in Katy, Texas at the moment?

The current ozone (O3) level in Katy, Texas at the moment is 67.992 ppm.

What is the nitrogen dioxide (NO2) level in Katy, Texas at the moment?

Nitrogen dioxide (NO2) level in Katy, Texas at the moment is 2.338 ppb.

Live air quality index in Katy, Texas today

Q: What is the PM2.5 level in Katy, Texas at the moment?

PM2.5 levels in Katy, Texas are currently 10.864 μg/m3.

Stay updated with real-time air quality in Katy, Texas featuring accurate data on AQI, PM_2.5, PM₁₀, O₃, NO₂, SO₂, and CO levels. Use our interactive map and detailed forecasts to monitor pollution trends, manage health risks, and plan your daily activities with confidence.

Live AQI (Air Quality Index)

Moderate

Katy, Texas

Last updated: ... (Local time)

Major air pollutants in Katy, Texas

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

10.86 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

37.67 μg/m³

155

255

425

605+

Ozone (O₃)

67.99 ppb

201

201+

Sulfur Dioxide (SO₂)

0.86 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

2.34 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.38 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Moderate

Katy, Texas

Get Live Pollen Counts

Katy, Texas

Scroll To Air Quality Map

Track live Katy, Texas air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-10-20T22:00:00.000Z	54 \| moderate	7.165 \| good	35.112 \| good	55.978 \| fine	0.782 \| good	1.975 \| good	0.38 \| good
2026-10-20T23:00:00.000Z	49 \| good	8.506 \| good	44.676 \| good	50.994 \| good	0.803 \| good	2.695 \| good	0.38 \| good
2026-10-21T00:00:00.000Z	50 \| good	8.376 \| good	35.626 \| good	53.935 \| good	0.802 \| good	4.971 \| good	0.441 \| good
2026-10-21T01:00:00.000Z	49 \| good	9.283 \| good	32.345 \| good	50.768 \| good	0.762 \| good	5.902 \| good	0.521 \| good
2026-10-21T02:00:00.000Z	52 \| moderate	9.75 \| good	41.562 \| good	47.299 \| good	0.783 \| good	9.488 \| good	0.441 \| good
2026-10-21T03:00:00.000Z	52 \| moderate	9.856 \| good	44.004 \| good	30.427 \| good	1.521 \| good	9.775 \| good	0.153 \| good
2026-10-21T04:00:00.000Z	49 \| good	8.541 \| good	34.528 \| good	37.858 \| good	0.822 \| good	14.517 \| good	0.42 \| good
2026-10-21T05:00:00.000Z	52 \| moderate	9.645 \| good	40.613 \| good	33.866 \| good	0.802 \| good	15.161 \| good	0.4 \| good
2026-10-21T06:00:00.000Z	49 \| good	9.375 \| good	34.026 \| good	25.932 \| good	0.781 \| good	15.267 \| good	0.38 \| good
2026-10-21T07:00:00.000Z	52 \| moderate	9.783 \| good	38.028 \| good	20.954 \| good	0.739 \| good	12.598 \| good	0.38 \| good
2026-10-21T08:00:00.000Z	54 \| moderate	10.626 \| good	41.22 \| good	19.554 \| good	0.659 \| good	12.496 \| good	0.36 \| good
2026-10-21T09:00:00.000Z	52 \| moderate	10.349 \| good	37.19 \| good	17.974 \| good	0.679 \| good	5.675 \| good	0.38 \| good
2026-10-21T10:00:00.000Z	52 \| moderate	10.25 \| good	50.23 \| good	15.961 \| good	0.72 \| good	5.523 \| good	0.381 \| good
2026-10-21T11:00:00.000Z	54 \| moderate	10.929 \| good	46.31 \| good	29.361 \| good	0.779 \| good	8.247 \| good	0.401 \| good
2026-10-21T12:00:00.000Z	52 \| moderate	9.721 \| good	42.689 \| good	24.839 \| good	0.738 \| good	10.754 \| good	0.44 \| good
2026-10-21T13:00:00.000Z	52 \| moderate	10.083 \| good	33.869 \| good	14.734 \| good	0.739 \| good	11.547 \| good	0.46 \| good
2026-10-21T14:00:00.000Z	49 \| good	8.837 \| good	42.119 \| good	11.844 \| good	0.777 \| good	9.615 \| good	0.58 \| good
2026-10-21T15:00:00.000Z	58 \| moderate	13.146 \| fine	58.528 \| fine	13.914 \| good	0.82 \| good	7.29 \| good	0.559 \| good
2026-10-21T16:00:00.000Z	56 \| moderate	11.802 \| good	58.875 \| fine	16.296 \| good	1.025 \| good	5.576 \| good	0.5 \| good
2026-10-21T17:00:00.000Z	60 \| moderate	11.877 \| good	72.619 \| fine	22.304 \| good	1.067 \| good	3.289 \| good	0.381 \| good
2026-10-21T18:00:00.000Z	60 \| moderate	12.055 \| good	73.885 \| fine	36.089 \| good	0.886 \| good	2.35 \| good	0.362 \| good
2026-10-21T19:00:00.000Z	58 \| moderate	13.171 \| fine	57.529 \| fine	41.334 \| good	0.845 \| good	1.85 \| good	0.381 \| good
2026-10-21T20:00:00.000Z	60 \| moderate	14.164 \| fine	52.078 \| good	48.95 \| good	0.844 \| good	1.86 \| good	0.361 \| good
2026-10-21T21:00:00.000Z	62 \| moderate	14.72 \| fine	54.097 \| good	48.171 \| good	0.803 \| good	2.097 \| good	0.402 \| good
2026-10-21T22:00:00.000Z	64 \| moderate	16.022 \| fine	40.926 \| good	52.717 \| good	0.823 \| good	2.451 \| good	0.382 \| good
2026-10-21T23:00:00.000Z	64 \| moderate	14.584 \| fine	55.569 \| fine	58.871 \| fine	0.823 \| good	2.688 \| good	0.421 \| good
2026-10-22T00:00:00.000Z	71 \| moderate	8.963 \| good	40.022 \| good	60.936 \| fine	0.843 \| good	10.85 \| good	0.461 \| good
2026-10-22T01:00:00.000Z	54 \| moderate	11.064 \| good	47.183 \| good	53.463 \| good	0.824 \| good	10.691 \| good	0.461 \| good
2026-10-22T02:00:00.000Z	56 \| moderate	12.01 \| good	52.743 \| good	47.798 \| good	0.824 \| good	10.989 \| good	0.502 \| good
2026-10-22T03:00:00.000Z	56 \| moderate	12.258 \| fine	54.379 \| good	33.523 \| good	1.369 \| good	11.148 \| good	0.202 \| good
2026-10-22T04:00:00.000Z	46 \| good	7.853 \| good	33.108 \| good	49.926 \| good	0.862 \| good	26.8 \| good	0.5 \| good
2026-10-22T05:00:00.000Z	49 \| good	8.828 \| good	38.199 \| good	43.602 \| good	0.863 \| good	24.86 \| good	0.481 \| good
2026-10-22T06:00:00.000Z	49 \| good	8.798 \| good	34.787 \| good	40.87 \| good	0.822 \| good	21.452 \| good	0.46 \| good
2026-10-22T07:00:00.000Z	49 \| good	8.527 \| good	37.913 \| good	39.646 \| good	0.781 \| good	20.526 \| good	0.42 \| good
2026-10-22T08:00:00.000Z	49 \| good	8.53 \| good	37.736 \| good	46.197 \| good	0.782 \| good	19.636 \| good	0.381 \| good
2026-10-22T09:00:00.000Z	52 \| moderate	9.958 \| good	52.628 \| good	36.662 \| good	0.802 \| good	19.329 \| good	0.379 \| good
2026-10-22T10:00:00.000Z	56 \| moderate	11.734 \| good	55.638 \| fine	28.288 \| good	0.781 \| good	18.007 \| good	0.4 \| good
2026-10-22T11:00:00.000Z	54 \| moderate	11.307 \| good	56.539 \| fine	27.444 \| good	0.76 \| good	12.237 \| good	0.46 \| good
2026-10-22T12:00:00.000Z	66 \| moderate	17.342 \| fine	69.437 \| fine	14.695 \| good	0.761 \| good	12.032 \| good	0.498 \| good
2026-10-22T13:00:00.000Z	66 \| moderate	17.462 \| fine	50.256 \| good	6.73 \| good	0.719 \| good	11.584 \| good	0.579 \| good
2026-10-22T14:00:00.000Z	52 \| moderate	9.744 \| good	48.796 \| good	4.354 \| good	0.98 \| good	12.197 \| good	0.68 \| good
2026-10-22T15:00:00.000Z	64 \| moderate	16.464 \| fine	54.573 \| good	6.984 \| good	1.043 \| good	14.504 \| good	0.562 \| good
2026-10-22T16:00:00.000Z	56 \| moderate	11.925 \| good	49.742 \| good	17.711 \| good	1.259 \| good	15.104 \| good	0.543 \| good
2026-10-22T17:00:00.000Z	66 \| moderate	17.116 \| fine	68.946 \| fine	32.403 \| good	1.014 \| good	9.465 \| good	0.503 \| good
2026-10-22T18:00:00.000Z	64 \| moderate	15.585 \| fine	73.73 \| fine	43.709 \| good	0.991 \| good	5.449 \| good	0.383 \| good
2026-10-22T19:00:00.000Z	58 \| moderate	13.441 \| fine	65.508 \| fine	51.061 \| good	0.927 \| good	2.922 \| good	0.343 \| good
2026-10-22T20:00:00.000Z	84 \| moderate	13.249 \| fine	51.201 \| good	64.781 \| fine	0.885 \| good	3.424 \| good	0.383 \| good
2026-10-22T21:00:00.000Z	93 \| moderate	10.864 \| good	37.671 \| good	67.992 \| fine	0.865 \| good	2.338 \| good	0.383 \| good
2026-10-22T21:00:00.000Z	93 \| moderate	10.864 \| good	37.671 \| good	67.992 \| fine	0.865 \| good	2.338 \| good	0.383 \| good
2026-10-22T22:00:00.000Z	90 \| moderate	8.406 \| good	37.101 \| good	67.477 \| fine	1.401 \| good	1.568 \| good	0.142 \| good
2026-10-22T23:00:00.000Z	71 \| moderate	8.252 \| good	36.209 \| good	60.937 \| fine	1.413 \| good	2.254 \| good	0.143 \| good
2026-10-23T00:00:00.000Z	60 \| moderate	13.808 \| fine	62.075 \| fine	46.285 \| good	1.418 \| good	5.495 \| good	0.16 \| good
2026-10-23T01:00:00.000Z	69 \| moderate	18.593 \| fine	81.769 \| fine	36.61 \| good	1.515 \| good	7.654 \| good	0.17 \| good
2026-10-23T02:00:00.000Z	69 \| moderate	18.819 \| fine	83.357 \| fine	40.991 \| good	1.611 \| good	9.223 \| good	0.172 \| good
2026-10-23T03:00:00.000Z	69 \| moderate	18.704 \| fine	82.201 \| fine	41.378 \| good	1.659 \| good	10.486 \| good	0.175 \| good
2026-10-23T04:00:00.000Z	67 \| moderate	17.762 \| fine	78.811 \| fine	38.912 \| good	1.653 \| good	11.747 \| good	0.178 \| good
2026-10-23T05:00:00.000Z	66 \| moderate	17.496 \| fine	76.996 \| fine	34.665 \| good	1.612 \| good	12.469 \| good	0.183 \| good
2026-10-23T06:00:00.000Z	66 \| moderate	16.793 \| fine	74.723 \| fine	30.24 \| good	1.552 \| good	11.919 \| good	0.185 \| good
2026-10-23T07:00:00.000Z	67 \| moderate	17.708 \| fine	78.346 \| fine	27.32 \| good	1.488 \| good	11.313 \| good	0.184 \| good
2026-10-23T08:00:00.000Z	67 \| moderate	17.523 \| fine	77.957 \| fine	23.073 \| good	1.43 \| good	10.991 \| good	0.184 \| good
2026-10-23T09:00:00.000Z	67 \| moderate	18.445 \| fine	81.05 \| fine	20.445 \| good	1.33 \| good	10.713 \| good	0.185 \| good
2026-10-23T10:00:00.000Z	71 \| moderate	19.518 \| fine	85.402 \| fine	20.69 \| good	1.267 \| good	10.526 \| good	0.186 \| good
2026-10-23T11:00:00.000Z	69 \| moderate	19.118 \| fine	84.813 \| fine	23.361 \| good	1.219 \| good	10.901 \| good	0.19 \| good
2026-10-23T12:00:00.000Z	71 \| moderate	19.654 \| fine	86.331 \| fine	21.077 \| good	1.199 \| good	11.877 \| good	0.197 \| good
2026-10-23T13:00:00.000Z	77 \| moderate	22.808 \| fine	100.164 \| fine	15.552 \| good	1.234 \| good	12.653 \| good	0.21 \| good
2026-10-23T14:00:00.000Z	79 \| moderate	23.959 \| fine	104.941 \| fine	19.088 \| good	1.369 \| good	10.631 \| good	0.221 \| good
2026-10-23T15:00:00.000Z	71 \| moderate	19.961 \| fine	87.581 \| fine	32.747 \| good	1.824 \| good	8.634 \| good	0.208 \| good
2026-10-23T16:00:00.000Z	67 \| moderate	18.225 \| fine	80.794 \| fine	47.419 \| good	2.422 \| good	6.272 \| good	0.178 \| good
2026-10-23T17:00:00.000Z	67 \| moderate	16.95 \| fine	75.309 \| fine	60.419 \| fine	2.543 \| good	3.747 \| good	0.16 \| good
2026-10-23T18:00:00.000Z	97 \| moderate	18.332 \| fine	81.312 \| fine	69.12 \| fine	2.088 \| good	2.055 \| good	0.152 \| good
2026-10-23T19:00:00.000Z	122 \| sensitive	19.899 \| fine	87.437 \| fine	76.595 \| moderate	1.736 \| good	1.488 \| good	0.152 \| good
2026-10-23T20:00:00.000Z	147 \| sensitive	19.178 \| fine	84.732 \| fine	84.137 \| moderate	1.605 \| good	1.37 \| good	0.154 \| good
2026-10-23T21:00:00.000Z	147 \| sensitive	17.919 \| fine	78.995 \| fine	83.926 \| moderate	1.579 \| good	1.427 \| good	0.156 \| good
2026-10-23T22:00:00.000Z	126 \| sensitive	14.749 \| fine	66.404 \| fine	77.834 \| moderate	1.572 \| good	1.64 \| good	0.158 \| good
2026-10-23T23:00:00.000Z	84 \| moderate	11.332 \| good	50.359 \| good	65.086 \| fine	1.576 \| good	2.233 \| good	0.16 \| good
2026-10-24T00:00:00.000Z	58 \| moderate	7.213 \| good	31.858 \| good	56.733 \| fine	1.533 \| good	4.22 \| good	0.17 \| good
2026-10-24T01:00:00.000Z	47 \| good	6.668 \| good	29.573 \| good	50.808 \| good	1.515 \| good	5.509 \| good	0.173 \| good
2026-10-24T02:00:00.000Z	44 \| good	8.498 \| good	37.173 \| good	47.211 \| good	1.504 \| good	6.56 \| good	0.173 \| good
2026-10-24T03:00:00.000Z	52 \| moderate	9.874 \| good	43.778 \| good	44.38 \| good	1.467 \| good	7.23 \| good	0.171 \| good
2026-10-24T04:00:00.000Z	52 \| moderate	9.807 \| good	43.773 \| good	39.914 \| good	1.403 \| good	7.799 \| good	0.17 \| good
2026-10-24T05:00:00.000Z	54 \| moderate	10.555 \| good	47.074 \| good	36.659 \| good	1.327 \| good	8.041 \| good	0.169 \| good
2026-10-24T06:00:00.000Z	52 \| moderate	9.594 \| good	42.699 \| good	34.151 \| good	1.248 \| good	7.691 \| good	0.169 \| good
2026-10-24T07:00:00.000Z	52 \| moderate	10.234 \| good	45.272 \| good	30.858 \| good	1.172 \| good	7.585 \| good	0.168 \| good
2026-10-24T08:00:00.000Z	49 \| good	9.439 \| good	41.936 \| good	26.309 \| good	1.139 \| good	7.875 \| good	0.17 \| good
2026-10-24T09:00:00.000Z	52 \| moderate	9.781 \| good	43.272 \| good	23.435 \| good	1.137 \| good	8.604 \| good	0.174 \| good
2026-10-24T10:00:00.000Z	56 \| moderate	11.784 \| good	52.368 \| good	23 \| good	1.154 \| good	9.609 \| good	0.18 \| good
2026-10-24T11:00:00.000Z	52 \| moderate	10.427 \| good	46.145 \| good	20.602 \| good	1.168 \| good	10.744 \| good	0.186 \| good
2026-10-24T12:00:00.000Z	54 \| moderate	11.393 \| good	50.654 \| good	19.822 \| good	1.169 \| good	11.715 \| good	0.191 \| good
2026-10-24T13:00:00.000Z	60 \| moderate	14.134 \| fine	63.682 \| fine	14.867 \| good	1.182 \| good	12.808 \| good	0.196 \| good
2026-10-24T14:00:00.000Z	64 \| moderate	15.808 \| fine	70.662 \| fine	21.764 \| good	1.239 \| good	11.232 \| good	0.197 \| good
2026-10-24T15:00:00.000Z	62 \| moderate	15.15 \| fine	67.251 \| fine	41.549 \| good	1.337 \| good	8.132 \| good	0.177 \| good
2026-10-24T16:00:00.000Z	60 \| moderate	13.625 \| fine	61.317 \| fine	52.191 \| good	1.185 \| good	3.613 \| good	0.156 \| good
2026-10-24T17:00:00.000Z	61 \| moderate	11.74 \| good	52.131 \| good	58.464 \| fine	0.884 \| good	1.623 \| good	0.148 \| good
2026-10-24T18:00:00.000Z	74 \| moderate	10.691 \| good	47.177 \| good	62.387 \| fine	0.816 \| good	1.092 \| good	0.146 \| good
2026-10-24T19:00:00.000Z	87 \| moderate	10.237 \| good	45.197 \| good	66.345 \| fine	0.809 \| good	0.904 \| good	0.146 \| good
2026-10-24T20:00:00.000Z	93 \| moderate	8.715 \| good	38.502 \| good	68.03 \| fine	0.81 \| good	0.88 \| good	0.147 \| good
2026-10-24T21:00:00.000Z	80 \| moderate	8.665 \| good	37.78 \| good	63.948 \| fine	0.814 \| good	0.945 \| good	0.146 \| good

Katy

Get reliable air quality data to drive your business

Katy, Texas air quality map: Stay updated on AQI near you

0.38ppm

How accurate is Texas, USA air quality data?

Air quality and pollutant data for Texas, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.

Source: Ambee Data Sources

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Frequently asked questions

How often is air quality information updated for Katy, Texas?

The air quality information for Katy, Texas is updated every hour for accuracy.

What time in the last 24 hours was the air quality in Katy, Texas at its worst?

In the past 24 hours, the air quality in Katy, Texas was at its worst at 08:00:00 on 2026-10-22.

When did Katy, Texas experience the best air quality in the last 24 hours?

In the last 24 hours, the best air quality in Katy, Texas was observed at 04:00:00 on 2026-10-22.

What is the AQI in Katy, Texas right now?

As of now, the AQI in Katy, Texas is 93, indicating Moderate conditions.

What is the most common type of pollution in Katy, Texas?

Katy, Texas air has the highest levels of O3.

What should I do in case of poor air quality in Katy, Texas?

Poor air quality in Katy, Texas means it's advisable to stay indoors and wear a mask for your protection.

What is the PM_2.5 level in Katy, Texas at the moment?

PM_2.5 levels in Katy, Texas are currently 10.864 μg/m³.

What is the PM₁₀ level in Katy, Texas at the moment?

The PM₁₀ concentration in Katy, Texas is 37.671 μg/m³ at the moment.

What is the carbon monoxide (CO) level in Katy, Texas at the moment?

The current carbon monoxide (CO) concentration in Katy, Texas is 0.383 ppm.

What is the sulfur dioxide (SO₂) level in Katy, Texas at the moment?

Currently, Katy, Texas has a sulfur dioxide (SO₂) concentration of 0.865 ppb.

What is the ozone (O₃) level in Katy, Texas at the moment?

The current ozone (O₃) level in Katy, Texas at the moment is 67.992 ppm.

What is the nitrogen dioxide (NO₂) level in Katy, Texas at the moment?

Nitrogen dioxide (NO₂) level in Katy, Texas at the moment is 2.338 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-10-20T22:00:00.000Z	54 \| moderate	7.165 \| good	35.112 \| good	55.978 \| fine	0.782 \| good	1.975 \| good	0.38 \| good
2026-10-20T23:00:00.000Z	49 \| good	8.506 \| good	44.676 \| good	50.994 \| good	0.803 \| good	2.695 \| good	0.38 \| good
2026-10-21T00:00:00.000Z	50 \| good	8.376 \| good	35.626 \| good	53.935 \| good	0.802 \| good	4.971 \| good	0.441 \| good
2026-10-21T01:00:00.000Z	49 \| good	9.283 \| good	32.345 \| good	50.768 \| good	0.762 \| good	5.902 \| good	0.521 \| good
2026-10-21T02:00:00.000Z	52 \| moderate	9.75 \| good	41.562 \| good	47.299 \| good	0.783 \| good	9.488 \| good	0.441 \| good
2026-10-21T03:00:00.000Z	52 \| moderate	9.856 \| good	44.004 \| good	30.427 \| good	1.521 \| good	9.775 \| good	0.153 \| good
2026-10-21T04:00:00.000Z	49 \| good	8.541 \| good	34.528 \| good	37.858 \| good	0.822 \| good	14.517 \| good	0.42 \| good
2026-10-21T05:00:00.000Z	52 \| moderate	9.645 \| good	40.613 \| good	33.866 \| good	0.802 \| good	15.161 \| good	0.4 \| good
2026-10-21T06:00:00.000Z	49 \| good	9.375 \| good	34.026 \| good	25.932 \| good	0.781 \| good	15.267 \| good	0.38 \| good
2026-10-21T07:00:00.000Z	52 \| moderate	9.783 \| good	38.028 \| good	20.954 \| good	0.739 \| good	12.598 \| good	0.38 \| good
2026-10-21T08:00:00.000Z	54 \| moderate	10.626 \| good	41.22 \| good	19.554 \| good	0.659 \| good	12.496 \| good	0.36 \| good
2026-10-21T09:00:00.000Z	52 \| moderate	10.349 \| good	37.19 \| good	17.974 \| good	0.679 \| good	5.675 \| good	0.38 \| good
2026-10-21T10:00:00.000Z	52 \| moderate	10.25 \| good	50.23 \| good	15.961 \| good	0.72 \| good	5.523 \| good	0.381 \| good
2026-10-21T11:00:00.000Z	54 \| moderate	10.929 \| good	46.31 \| good	29.361 \| good	0.779 \| good	8.247 \| good	0.401 \| good
2026-10-21T12:00:00.000Z	52 \| moderate	9.721 \| good	42.689 \| good	24.839 \| good	0.738 \| good	10.754 \| good	0.44 \| good
2026-10-21T13:00:00.000Z	52 \| moderate	10.083 \| good	33.869 \| good	14.734 \| good	0.739 \| good	11.547 \| good	0.46 \| good
2026-10-21T14:00:00.000Z	49 \| good	8.837 \| good	42.119 \| good	11.844 \| good	0.777 \| good	9.615 \| good	0.58 \| good
2026-10-21T15:00:00.000Z	58 \| moderate	13.146 \| fine	58.528 \| fine	13.914 \| good	0.82 \| good	7.29 \| good	0.559 \| good
2026-10-21T16:00:00.000Z	56 \| moderate	11.802 \| good	58.875 \| fine	16.296 \| good	1.025 \| good	5.576 \| good	0.5 \| good
2026-10-21T17:00:00.000Z	60 \| moderate	11.877 \| good	72.619 \| fine	22.304 \| good	1.067 \| good	3.289 \| good	0.381 \| good
2026-10-21T18:00:00.000Z	60 \| moderate	12.055 \| good	73.885 \| fine	36.089 \| good	0.886 \| good	2.35 \| good	0.362 \| good
2026-10-21T19:00:00.000Z	58 \| moderate	13.171 \| fine	57.529 \| fine	41.334 \| good	0.845 \| good	1.85 \| good	0.381 \| good
2026-10-21T20:00:00.000Z	60 \| moderate	14.164 \| fine	52.078 \| good	48.95 \| good	0.844 \| good	1.86 \| good	0.361 \| good
2026-10-21T21:00:00.000Z	62 \| moderate	14.72 \| fine	54.097 \| good	48.171 \| good	0.803 \| good	2.097 \| good	0.402 \| good
2026-10-21T22:00:00.000Z	64 \| moderate	16.022 \| fine	40.926 \| good	52.717 \| good	0.823 \| good	2.451 \| good	0.382 \| good
2026-10-21T23:00:00.000Z	64 \| moderate	14.584 \| fine	55.569 \| fine	58.871 \| fine	0.823 \| good	2.688 \| good	0.421 \| good
2026-10-22T00:00:00.000Z	71 \| moderate	8.963 \| good	40.022 \| good	60.936 \| fine	0.843 \| good	10.85 \| good	0.461 \| good
2026-10-22T01:00:00.000Z	54 \| moderate	11.064 \| good	47.183 \| good	53.463 \| good	0.824 \| good	10.691 \| good	0.461 \| good
2026-10-22T02:00:00.000Z	56 \| moderate	12.01 \| good	52.743 \| good	47.798 \| good	0.824 \| good	10.989 \| good	0.502 \| good
2026-10-22T03:00:00.000Z	56 \| moderate	12.258 \| fine	54.379 \| good	33.523 \| good	1.369 \| good	11.148 \| good	0.202 \| good
2026-10-22T04:00:00.000Z	46 \| good	7.853 \| good	33.108 \| good	49.926 \| good	0.862 \| good	26.8 \| good	0.5 \| good
2026-10-22T05:00:00.000Z	49 \| good	8.828 \| good	38.199 \| good	43.602 \| good	0.863 \| good	24.86 \| good	0.481 \| good
2026-10-22T06:00:00.000Z	49 \| good	8.798 \| good	34.787 \| good	40.87 \| good	0.822 \| good	21.452 \| good	0.46 \| good
2026-10-22T07:00:00.000Z	49 \| good	8.527 \| good	37.913 \| good	39.646 \| good	0.781 \| good	20.526 \| good	0.42 \| good
2026-10-22T08:00:00.000Z	49 \| good	8.53 \| good	37.736 \| good	46.197 \| good	0.782 \| good	19.636 \| good	0.381 \| good
2026-10-22T09:00:00.000Z	52 \| moderate	9.958 \| good	52.628 \| good	36.662 \| good	0.802 \| good	19.329 \| good	0.379 \| good
2026-10-22T10:00:00.000Z	56 \| moderate	11.734 \| good	55.638 \| fine	28.288 \| good	0.781 \| good	18.007 \| good	0.4 \| good
2026-10-22T11:00:00.000Z	54 \| moderate	11.307 \| good	56.539 \| fine	27.444 \| good	0.76 \| good	12.237 \| good	0.46 \| good
2026-10-22T12:00:00.000Z	66 \| moderate	17.342 \| fine	69.437 \| fine	14.695 \| good	0.761 \| good	12.032 \| good	0.498 \| good
2026-10-22T13:00:00.000Z	66 \| moderate	17.462 \| fine	50.256 \| good	6.73 \| good	0.719 \| good	11.584 \| good	0.579 \| good
2026-10-22T14:00:00.000Z	52 \| moderate	9.744 \| good	48.796 \| good	4.354 \| good	0.98 \| good	12.197 \| good	0.68 \| good
2026-10-22T15:00:00.000Z	64 \| moderate	16.464 \| fine	54.573 \| good	6.984 \| good	1.043 \| good	14.504 \| good	0.562 \| good
2026-10-22T16:00:00.000Z	56 \| moderate	11.925 \| good	49.742 \| good	17.711 \| good	1.259 \| good	15.104 \| good	0.543 \| good
2026-10-22T17:00:00.000Z	66 \| moderate	17.116 \| fine	68.946 \| fine	32.403 \| good	1.014 \| good	9.465 \| good	0.503 \| good
2026-10-22T18:00:00.000Z	64 \| moderate	15.585 \| fine	73.73 \| fine	43.709 \| good	0.991 \| good	5.449 \| good	0.383 \| good
2026-10-22T19:00:00.000Z	58 \| moderate	13.441 \| fine	65.508 \| fine	51.061 \| good	0.927 \| good	2.922 \| good	0.343 \| good
2026-10-22T20:00:00.000Z	84 \| moderate	13.249 \| fine	51.201 \| good	64.781 \| fine	0.885 \| good	3.424 \| good	0.383 \| good
2026-10-22T21:00:00.000Z	93 \| moderate	10.864 \| good	37.671 \| good	67.992 \| fine	0.865 \| good	2.338 \| good	0.383 \| good
2026-10-22T21:00:00.000Z	93 \| moderate	10.864 \| good	37.671 \| good	67.992 \| fine	0.865 \| good	2.338 \| good	0.383 \| good
2026-10-22T22:00:00.000Z	90 \| moderate	8.406 \| good	37.101 \| good	67.477 \| fine	1.401 \| good	1.568 \| good	0.142 \| good
2026-10-22T23:00:00.000Z	71 \| moderate	8.252 \| good	36.209 \| good	60.937 \| fine	1.413 \| good	2.254 \| good	0.143 \| good
2026-10-23T00:00:00.000Z	60 \| moderate	13.808 \| fine	62.075 \| fine	46.285 \| good	1.418 \| good	5.495 \| good	0.16 \| good
2026-10-23T01:00:00.000Z	69 \| moderate	18.593 \| fine	81.769 \| fine	36.61 \| good	1.515 \| good	7.654 \| good	0.17 \| good
2026-10-23T02:00:00.000Z	69 \| moderate	18.819 \| fine	83.357 \| fine	40.991 \| good	1.611 \| good	9.223 \| good	0.172 \| good
2026-10-23T03:00:00.000Z	69 \| moderate	18.704 \| fine	82.201 \| fine	41.378 \| good	1.659 \| good	10.486 \| good	0.175 \| good
2026-10-23T04:00:00.000Z	67 \| moderate	17.762 \| fine	78.811 \| fine	38.912 \| good	1.653 \| good	11.747 \| good	0.178 \| good
2026-10-23T05:00:00.000Z	66 \| moderate	17.496 \| fine	76.996 \| fine	34.665 \| good	1.612 \| good	12.469 \| good	0.183 \| good
2026-10-23T06:00:00.000Z	66 \| moderate	16.793 \| fine	74.723 \| fine	30.24 \| good	1.552 \| good	11.919 \| good	0.185 \| good
2026-10-23T07:00:00.000Z	67 \| moderate	17.708 \| fine	78.346 \| fine	27.32 \| good	1.488 \| good	11.313 \| good	0.184 \| good
2026-10-23T08:00:00.000Z	67 \| moderate	17.523 \| fine	77.957 \| fine	23.073 \| good	1.43 \| good	10.991 \| good	0.184 \| good
2026-10-23T09:00:00.000Z	67 \| moderate	18.445 \| fine	81.05 \| fine	20.445 \| good	1.33 \| good	10.713 \| good	0.185 \| good
2026-10-23T10:00:00.000Z	71 \| moderate	19.518 \| fine	85.402 \| fine	20.69 \| good	1.267 \| good	10.526 \| good	0.186 \| good
2026-10-23T11:00:00.000Z	69 \| moderate	19.118 \| fine	84.813 \| fine	23.361 \| good	1.219 \| good	10.901 \| good	0.19 \| good
2026-10-23T12:00:00.000Z	71 \| moderate	19.654 \| fine	86.331 \| fine	21.077 \| good	1.199 \| good	11.877 \| good	0.197 \| good
2026-10-23T13:00:00.000Z	77 \| moderate	22.808 \| fine	100.164 \| fine	15.552 \| good	1.234 \| good	12.653 \| good	0.21 \| good
2026-10-23T14:00:00.000Z	79 \| moderate	23.959 \| fine	104.941 \| fine	19.088 \| good	1.369 \| good	10.631 \| good	0.221 \| good
2026-10-23T15:00:00.000Z	71 \| moderate	19.961 \| fine	87.581 \| fine	32.747 \| good	1.824 \| good	8.634 \| good	0.208 \| good
2026-10-23T16:00:00.000Z	67 \| moderate	18.225 \| fine	80.794 \| fine	47.419 \| good	2.422 \| good	6.272 \| good	0.178 \| good
2026-10-23T17:00:00.000Z	67 \| moderate	16.95 \| fine	75.309 \| fine	60.419 \| fine	2.543 \| good	3.747 \| good	0.16 \| good
2026-10-23T18:00:00.000Z	97 \| moderate	18.332 \| fine	81.312 \| fine	69.12 \| fine	2.088 \| good	2.055 \| good	0.152 \| good
2026-10-23T19:00:00.000Z	122 \| sensitive	19.899 \| fine	87.437 \| fine	76.595 \| moderate	1.736 \| good	1.488 \| good	0.152 \| good
2026-10-23T20:00:00.000Z	147 \| sensitive	19.178 \| fine	84.732 \| fine	84.137 \| moderate	1.605 \| good	1.37 \| good	0.154 \| good
2026-10-23T21:00:00.000Z	147 \| sensitive	17.919 \| fine	78.995 \| fine	83.926 \| moderate	1.579 \| good	1.427 \| good	0.156 \| good
2026-10-23T22:00:00.000Z	126 \| sensitive	14.749 \| fine	66.404 \| fine	77.834 \| moderate	1.572 \| good	1.64 \| good	0.158 \| good
2026-10-23T23:00:00.000Z	84 \| moderate	11.332 \| good	50.359 \| good	65.086 \| fine	1.576 \| good	2.233 \| good	0.16 \| good
2026-10-24T00:00:00.000Z	58 \| moderate	7.213 \| good	31.858 \| good	56.733 \| fine	1.533 \| good	4.22 \| good	0.17 \| good
2026-10-24T01:00:00.000Z	47 \| good	6.668 \| good	29.573 \| good	50.808 \| good	1.515 \| good	5.509 \| good	0.173 \| good
2026-10-24T02:00:00.000Z	44 \| good	8.498 \| good	37.173 \| good	47.211 \| good	1.504 \| good	6.56 \| good	0.173 \| good
2026-10-24T03:00:00.000Z	52 \| moderate	9.874 \| good	43.778 \| good	44.38 \| good	1.467 \| good	7.23 \| good	0.171 \| good
2026-10-24T04:00:00.000Z	52 \| moderate	9.807 \| good	43.773 \| good	39.914 \| good	1.403 \| good	7.799 \| good	0.17 \| good
2026-10-24T05:00:00.000Z	54 \| moderate	10.555 \| good	47.074 \| good	36.659 \| good	1.327 \| good	8.041 \| good	0.169 \| good
2026-10-24T06:00:00.000Z	52 \| moderate	9.594 \| good	42.699 \| good	34.151 \| good	1.248 \| good	7.691 \| good	0.169 \| good
2026-10-24T07:00:00.000Z	52 \| moderate	10.234 \| good	45.272 \| good	30.858 \| good	1.172 \| good	7.585 \| good	0.168 \| good
2026-10-24T08:00:00.000Z	49 \| good	9.439 \| good	41.936 \| good	26.309 \| good	1.139 \| good	7.875 \| good	0.17 \| good
2026-10-24T09:00:00.000Z	52 \| moderate	9.781 \| good	43.272 \| good	23.435 \| good	1.137 \| good	8.604 \| good	0.174 \| good
2026-10-24T10:00:00.000Z	56 \| moderate	11.784 \| good	52.368 \| good	23 \| good	1.154 \| good	9.609 \| good	0.18 \| good
2026-10-24T11:00:00.000Z	52 \| moderate	10.427 \| good	46.145 \| good	20.602 \| good	1.168 \| good	10.744 \| good	0.186 \| good
2026-10-24T12:00:00.000Z	54 \| moderate	11.393 \| good	50.654 \| good	19.822 \| good	1.169 \| good	11.715 \| good	0.191 \| good
2026-10-24T13:00:00.000Z	60 \| moderate	14.134 \| fine	63.682 \| fine	14.867 \| good	1.182 \| good	12.808 \| good	0.196 \| good
2026-10-24T14:00:00.000Z	64 \| moderate	15.808 \| fine	70.662 \| fine	21.764 \| good	1.239 \| good	11.232 \| good	0.197 \| good
2026-10-24T15:00:00.000Z	62 \| moderate	15.15 \| fine	67.251 \| fine	41.549 \| good	1.337 \| good	8.132 \| good	0.177 \| good
2026-10-24T16:00:00.000Z	60 \| moderate	13.625 \| fine	61.317 \| fine	52.191 \| good	1.185 \| good	3.613 \| good	0.156 \| good
2026-10-24T17:00:00.000Z	61 \| moderate	11.74 \| good	52.131 \| good	58.464 \| fine	0.884 \| good	1.623 \| good	0.148 \| good
2026-10-24T18:00:00.000Z	74 \| moderate	10.691 \| good	47.177 \| good	62.387 \| fine	0.816 \| good	1.092 \| good	0.146 \| good
2026-10-24T19:00:00.000Z	87 \| moderate	10.237 \| good	45.197 \| good	66.345 \| fine	0.809 \| good	0.904 \| good	0.146 \| good
2026-10-24T20:00:00.000Z	93 \| moderate	8.715 \| good	38.502 \| good	68.03 \| fine	0.81 \| good	0.88 \| good	0.147 \| good
2026-10-24T21:00:00.000Z	80 \| moderate	8.665 \| good	37.78 \| good	63.948 \| fine	0.814 \| good	0.945 \| good	0.146 \| good

Live air quality index in Katy, Texas today

Major air pollutants in Katy, Texas

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live Katy, Texas air quality forecast and history

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Katy, Texas air quality map: Stay updated on AQI near you

Air quality in nearby cities

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Frequently asked questions

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What is the sulfur dioxide (SO2) level in Katy, Texas at the moment?

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Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

What is the PM_2.5 level in Katy, Texas at the moment?

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What is the sulfur dioxide (SO₂) level in Katy, Texas at the moment?

What is the ozone (O₃) level in Katy, Texas at the moment?

What is the nitrogen dioxide (NO₂) level in Katy, Texas at the moment?