What are the current PM10 levels at Rancho Cucamonga, California?

The current PM10 levels in Rancho Cucamonga, California are 42.095 μg/m3.

What are the current sulfur dioxide (SO2) levels at Rancho Cucamonga, California?

The current sulfur dioxide (SO2) levels in Rancho Cucamonga, California are 0.471 ppb.

What are the current ozone (O3) levels at Rancho Cucamonga, California?

The current ozone (O3) levels at Rancho Cucamonga, California is 19.947 ppm.

What are the current nitrogen dioxide (NO2) levels at Rancho Cucamonga, California?

The current nitrogen dioxide (NO2) levels at Rancho Cucamonga, California is 30.438 ppb.

Real-time air quality index in Rancho Cucamonga, California today

Q: What are the current PM2.5 levels in Rancho Cucamonga, California?

The measured PM2.5 levels in Rancho Cucamonga, California at present are 25.401 μg/m3.

Stay updated with real-time air quality in Rancho Cucamonga, California 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

Rancho Cucamonga, California

Last updated: ... (Local time)

Common air pollutants in Rancho Cucamonga, California

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

25.40 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

42.09 μg/m³

155

255

425

605+

Ozone (O₃)

19.95 ppb

201

201+

Sulfur Dioxide (SO₂)

0.47 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

30.44 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.57 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

Rancho Cucamonga, California

Get Live Pollen Counts

Rancho Cucamonga, California

Scroll To Air Quality Map

Track live Rancho Cucamonga, California air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-01-21T06:00:00.000Z	64 \| moderate	15.895 \| fine	49.431 \| good	9.883 \| good	0.568 \| good	38.976 \| good	0.645 \| good
2026-01-21T07:00:00.000Z	62 \| moderate	15.37 \| fine	49.698 \| good	11.04 \| good	0.608 \| good	38.976 \| good	0.645 \| good
2026-01-21T08:00:00.000Z	58 \| moderate	13.282 \| fine	43.455 \| good	6.199 \| good	0.701 \| good	38.203 \| good	0.497 \| good
2026-01-21T09:00:00.000Z	60 \| moderate	13.894 \| fine	47.704 \| good	7.525 \| good	0.644 \| good	35.869 \| good	0.497 \| good
2026-01-21T10:00:00.000Z	58 \| moderate	13.086 \| fine	44.859 \| good	7.029 \| good	0.529 \| good	34.479 \| good	0.433 \| good
2026-01-21T11:00:00.000Z	56 \| moderate	12.268 \| fine	31.836 \| good	5.442 \| good	0.658 \| good	38.677 \| good	0.684 \| good
2026-01-21T12:00:00.000Z	62 \| moderate	14.78 \| fine	35.062 \| good	5.663 \| good	0.63 \| good	32.614 \| good	0.549 \| good
2026-01-21T13:00:00.000Z	58 \| moderate	13.179 \| fine	34.249 \| good	5.973 \| good	0.618 \| good	32.614 \| good	0.549 \| good
2026-01-21T14:00:00.000Z	60 \| moderate	13.553 \| fine	37.773 \| good	5.546 \| good	0.916 \| good	28.934 \| good	0.601 \| good
2026-01-21T15:00:00.000Z	60 \| moderate	13.591 \| fine	48.953 \| good	6.116 \| good	1.113 \| good	30.456 \| good	0.733 \| good
2026-01-21T16:00:00.000Z	66 \| moderate	17.217 \| fine	49.153 \| good	5.407 \| good	1.238 \| good	32.419 \| good	0.862 \| good
2026-01-21T17:00:00.000Z	62 \| moderate	15.354 \| fine	43.261 \| good	10.092 \| good	1.371 \| good	37.363 \| good	0.736 \| good
2026-01-21T18:00:00.000Z	60 \| moderate	13.678 \| fine	45.965 \| good	10.473 \| good	0.932 \| good	39.672 \| good	0.761 \| good
2026-01-21T19:00:00.000Z	71 \| moderate	19.577 \| fine	56.33 \| fine	11.673 \| good	1.032 \| good	40.816 \| good	0.771 \| good
2026-01-21T20:00:00.000Z	67 \| moderate	18.089 \| fine	76.142 \| fine	12.096 \| good	0.795 \| good	42.416 \| good	0.611 \| good
2026-01-21T21:00:00.000Z	67 \| moderate	17.728 \| fine	57.081 \| fine	13.349 \| good	0.701 \| good	44.065 \| good	0.677 \| good
2026-01-21T22:00:00.000Z	64 \| moderate	16.357 \| fine	49.003 \| good	13.081 \| good	0.73 \| good	41.29 \| good	0.596 \| good
2026-01-21T23:00:00.000Z	64 \| moderate	16.116 \| fine	59.998 \| fine	17.023 \| good	0.743 \| good	40.042 \| good	0.576 \| good
2026-01-22T00:00:00.000Z	66 \| moderate	16.564 \| fine	61.776 \| fine	15.999 \| good	0.802 \| good	38.664 \| good	0.576 \| good
2026-01-22T01:00:00.000Z	71 \| moderate	19.804 \| fine	46.57 \| good	20.402 \| good	0.623 \| good	35.349 \| good	0.565 \| good
2026-01-22T02:00:00.000Z	81 \| moderate	24.562 \| fine	55.37 \| fine	14.402 \| good	0.605 \| good	43.178 \| good	0.732 \| good
2026-01-22T03:00:00.000Z	88 \| moderate	29.244 \| fine	56.996 \| fine	14.137 \| good	0.536 \| good	41.307 \| good	0.743 \| good
2026-01-22T04:00:00.000Z	96 \| moderate	32.774 \| fine	63.378 \| fine	9.408 \| good	0.566 \| good	40.495 \| good	0.717 \| good
2026-01-22T05:00:00.000Z	96 \| moderate	32.822 \| fine	58.574 \| fine	11.146 \| good	0.931 \| good	40.744 \| good	0.783 \| good
2026-01-22T06:00:00.000Z	94 \| moderate	31.758 \| fine	71.333 \| fine	7.821 \| good	0.737 \| good	39.988 \| good	0.817 \| good
2026-01-22T07:00:00.000Z	96 \| moderate	33.267 \| fine	59.235 \| fine	6.206 \| good	0.753 \| good	43.52 \| good	0.898 \| good
2026-01-22T08:00:00.000Z	90 \| moderate	30.325 \| fine	58.061 \| fine	5.603 \| good	0.767 \| good	42.598 \| good	0.807 \| good
2026-01-22T09:00:00.000Z	90 \| moderate	30.092 \| fine	53.526 \| good	2.689 \| good	0.758 \| good	38.977 \| good	0.792 \| good
2026-01-22T10:00:00.000Z	88 \| moderate	28.726 \| fine	60.452 \| fine	4.138 \| good	0.744 \| good	38.169 \| good	0.837 \| good
2026-01-22T11:00:00.000Z	77 \| moderate	23.253 \| fine	67.009 \| fine	3.587 \| good	0.817 \| good	37.173 \| good	0.729 \| good
2026-01-22T12:00:00.000Z	99 \| moderate	34.729 \| fine	87.542 \| fine	3.851 \| good	0.804 \| good	34.013 \| good	0.734 \| good
2026-01-22T13:00:00.000Z	96 \| moderate	33.344 \| fine	99.418 \| fine	3.024 \| good	0.804 \| good	34.013 \| good	0.734 \| good
2026-01-22T14:00:00.000Z	97 \| moderate	34.291 \| fine	77.151 \| fine	3.818 \| good	0.761 \| good	29.432 \| good	0.763 \| good
2026-01-22T15:00:00.000Z	110 \| sensitive	38.687 \| moderate	91.388 \| fine	2.929 \| good	0.923 \| good	29.688 \| good	0.798 \| good
2026-01-22T16:00:00.000Z	112 \| sensitive	40.359 \| moderate	99.095 \| fine	3.938 \| good	0.948 \| good	28.509 \| good	0.759 \| good
2026-01-22T17:00:00.000Z	102 \| sensitive	36.242 \| moderate	65.302 \| fine	6.02 \| good	1.079 \| good	29.587 \| good	0.728 \| good
2026-01-22T18:00:00.000Z	132 \| sensitive	47.589 \| moderate	83.751 \| fine	3.165 \| good	1.039 \| good	31.641 \| good	0.75 \| good
2026-01-22T19:00:00.000Z	102 \| sensitive	36.204 \| moderate	68.484 \| fine	7.95 \| good	0.842 \| good	37.755 \| good	0.802 \| good
2026-01-22T20:00:00.000Z	107 \| sensitive	38.249 \| moderate	62.203 \| fine	12.025 \| good	0.715 \| good	36.939 \| good	0.651 \| good
2026-01-22T21:00:00.000Z	112 \| sensitive	40.406 \| moderate	63.147 \| fine	13.638 \| good	0.696 \| good	34.916 \| good	0.707 \| good
2026-01-22T22:00:00.000Z	102 \| sensitive	36.414 \| moderate	59.337 \| fine	12.06 \| good	0.781 \| good	37.819 \| good	0.703 \| good
2026-01-22T23:00:00.000Z	94 \| moderate	32.411 \| fine	51.871 \| good	13.695 \| good	0.722 \| good	35.745 \| good	0.648 \| good
2026-01-23T00:00:00.000Z	127 \| sensitive	46.204 \| moderate	48.488 \| good	15.27 \| good	0.572 \| good	34.654 \| good	0.655 \| good
2026-01-23T01:00:00.000Z	44 \| good	8.4 \| good	38.389 \| good	18.477 \| good	0.554 \| good	37.286 \| good	0.699 \| good
2026-01-23T02:00:00.000Z	44 \| good	7.9 \| good	36.159 \| good	13.923 \| good	0.534 \| good	37.592 \| good	0.703 \| good
2026-01-23T03:00:00.000Z	86 \| moderate	28.14 \| fine	33.054 \| good	10.75 \| good	0.456 \| good	34.233 \| good	0.579 \| good
2026-01-23T04:00:00.000Z	81 \| moderate	25.401 \| fine	42.095 \| good	19.947 \| good	0.471 \| good	30.438 \| good	0.568 \| good
2026-01-23T05:00:00.000Z	81 \| moderate	25.401 \| fine	42.095 \| good	19.947 \| good	0.471 \| good	30.438 \| good	0.568 \| good
2026-01-23T06:00:00.000Z	52 \| moderate	10.343 \| good	45.509 \| good	9.061 \| good	4.254 \| good	36.56 \| good	0.43 \| good
2026-01-23T07:00:00.000Z	54 \| moderate	11.497 \| good	51.15 \| good	7.699 \| good	4.106 \| good	35.339 \| good	0.427 \| good
2026-01-23T08:00:00.000Z	60 \| moderate	13.625 \| fine	60.575 \| fine	9.415 \| good	3.958 \| good	34.119 \| good	0.424 \| good
2026-01-23T09:00:00.000Z	56 \| moderate	12.309 \| fine	54.506 \| good	11.187 \| good	3.809 \| good	32.899 \| good	0.421 \| good
2026-01-23T10:00:00.000Z	52 \| moderate	9.866 \| good	43.754 \| good	9.764 \| good	3.697 \| good	31.455 \| good	0.403 \| good
2026-01-23T11:00:00.000Z	58 \| moderate	12.809 \| fine	56.75 \| fine	8.392 \| good	3.585 \| good	30.011 \| good	0.384 \| good
2026-01-23T12:00:00.000Z	66 \| moderate	17.465 \| fine	77.132 \| fine	5.765 \| good	3.473 \| good	28.567 \| good	0.365 \| good
2026-01-23T13:00:00.000Z	62 \| moderate	14.551 \| fine	64.641 \| fine	6.759 \| good	3.724 \| good	28.858 \| good	0.372 \| good
2026-01-23T14:00:00.000Z	67 \| moderate	17.526 \| fine	77.05 \| fine	7.247 \| good	3.974 \| good	29.149 \| good	0.378 \| good
2026-01-23T15:00:00.000Z	71 \| moderate	20.449 \| fine	89.949 \| fine	6.728 \| good	4.225 \| good	29.439 \| good	0.384 \| good
2026-01-23T16:00:00.000Z	71 \| moderate	20.217 \| fine	89.221 \| fine	7.894 \| good	4.595 \| good	27.259 \| good	0.354 \| good
2026-01-23T17:00:00.000Z	69 \| moderate	18.718 \| fine	83.072 \| fine	9.87 \| good	4.966 \| good	25.079 \| good	0.324 \| good
2026-01-23T18:00:00.000Z	71 \| moderate	19.941 \| fine	87.288 \| fine	15.657 \| good	5.336 \| good	22.898 \| good	0.293 \| good
2026-01-23T19:00:00.000Z	64 \| moderate	15.783 \| fine	70.333 \| fine	26.61 \| good	4.34 \| good	19.184 \| good	0.252 \| good
2026-01-23T20:00:00.000Z	58 \| moderate	12.757 \| fine	57.013 \| fine	31.768 \| good	3.343 \| good	15.469 \| good	0.211 \| good
2026-01-23T21:00:00.000Z	56 \| moderate	11.562 \| good	51.32 \| good	31.173 \| good	2.347 \| good	11.755 \| good	0.171 \| good
2026-01-23T22:00:00.000Z	52 \| moderate	9.675 \| good	43.566 \| good	30.601 \| good	2.534 \| good	12.571 \| good	0.169 \| good
2026-01-23T23:00:00.000Z	56 \| moderate	11.662 \| good	51.495 \| good	31.225 \| good	2.721 \| good	13.388 \| good	0.168 \| good
2026-01-24T00:00:00.000Z	52 \| moderate	9.952 \| good	44.346 \| good	31.789 \| good	2.908 \| good	14.204 \| good	0.167 \| good
2026-01-24T01:00:00.000Z	54 \| moderate	10.902 \| good	48.257 \| good	27.753 \| good	3.425 \| good	21.631 \| good	0.218 \| good
2026-01-24T02:00:00.000Z	54 \| moderate	11.04 \| good	48.659 \| good	18.74 \| good	3.942 \| good	29.059 \| good	0.268 \| good
2026-01-24T03:00:00.000Z	58 \| moderate	12.578 \| fine	56.123 \| fine	14.146 \| good	4.459 \| good	36.486 \| good	0.319 \| good
2026-01-24T04:00:00.000Z	60 \| moderate	14.178 \| fine	63.594 \| fine	11.329 \| good	4.805 \| good	36.504 \| good	0.344 \| good
2026-01-24T05:00:00.000Z	64 \| moderate	15.745 \| fine	69.973 \| fine	8.877 \| good	5.151 \| good	36.521 \| good	0.368 \| good
2026-01-24T06:00:00.000Z	64 \| moderate	16.285 \| fine	72.332 \| fine	7.92 \| good	5.498 \| good	36.539 \| good	0.393 \| good
2026-01-24T07:00:00.000Z	69 \| moderate	18.683 \| fine	83.299 \| fine	7.711 \| good	5.559 \| good	35.558 \| good	0.377 \| good
2026-01-24T08:00:00.000Z	62 \| moderate	15.48 \| fine	69.125 \| fine	9.265 \| good	5.621 \| good	34.577 \| good	0.361 \| good
2026-01-24T09:00:00.000Z	58 \| moderate	13.178 \| fine	59.205 \| fine	9.307 \| good	5.683 \| good	33.596 \| good	0.346 \| good
2026-01-24T10:00:00.000Z	52 \| moderate	10.425 \| good	46.486 \| good	8.713 \| good	5.729 \| good	32.421 \| good	0.324 \| good
2026-01-24T11:00:00.000Z	54 \| moderate	11.309 \| good	49.875 \| good	8.315 \| good	5.776 \| good	31.246 \| good	0.303 \| good
2026-01-24T12:00:00.000Z	60 \| moderate	13.818 \| fine	61.415 \| fine	5.77 \| good	5.822 \| good	30.071 \| good	0.281 \| good
2026-01-24T13:00:00.000Z	58 \| moderate	13.489 \| fine	60.457 \| fine	5.089 \| good	5.762 \| good	28.9 \| good	0.285 \| good
2026-01-24T14:00:00.000Z	66 \| moderate	16.97 \| fine	74.801 \| fine	5.059 \| good	5.701 \| good	27.729 \| good	0.288 \| good
2026-01-24T15:00:00.000Z	64 \| moderate	16.406 \| fine	73.104 \| fine	4.98 \| good	5.64 \| good	26.558 \| good	0.291 \| good
2026-01-24T16:00:00.000Z	67 \| moderate	17.634 \| fine	77.834 \| fine	6.574 \| good	5.52 \| good	21.534 \| good	0.254 \| good
2026-01-24T17:00:00.000Z	60 \| moderate	13.508 \| fine	60.742 \| fine	12.99 \| good	5.4 \| good	16.511 \| good	0.216 \| good
2026-01-24T18:00:00.000Z	56 \| moderate	11.707 \| good	51.728 \| good	20.551 \| good	5.28 \| good	11.487 \| good	0.179 \| good
2026-01-24T19:00:00.000Z	44 \| good	7.596 \| good	33.382 \| good	31.927 \| good	4.417 \| good	9.64 \| good	0.168 \| good
2026-01-24T20:00:00.000Z	34 \| good	4.827 \| good	21.167 \| good	36.958 \| good	3.554 \| good	7.792 \| good	0.158 \| good
2026-01-24T21:00:00.000Z	35 \| good	3.55 \| good	15.202 \| good	38.104 \| good	2.69 \| good	5.944 \| good	0.147 \| good
2026-01-24T22:00:00.000Z	34 \| good	4.287 \| good	18.946 \| good	37.303 \| good	2.789 \| good	6.607 \| good	0.15 \| good
2026-01-24T23:00:00.000Z	36 \| good	3.772 \| good	16.361 \| good	38.594 \| good	2.887 \| good	7.27 \| good	0.153 \| good
2026-01-25T00:00:00.000Z	56 \| moderate	12.082 \| good	12.684 \| good	40.297 \| good	3.083 \| good	8.191 \| good	0.157 \| good
2026-01-25T01:00:00.000Z	38 \| good	6.979 \| good	30.964 \| good	34.111 \| good	3.262 \| good	14.594 \| good	0.197 \| good
2026-01-25T02:00:00.000Z	49 \| good	8.675 \| good	38.471 \| good	23.103 \| good	3.537 \| good	21.255 \| good	0.239 \| good
2026-01-25T03:00:00.000Z	38 \| good	6.9 \| good	30.093 \| good	17.373 \| good	3.813 \| good	27.917 \| good	0.28 \| good
2026-01-25T04:00:00.000Z	33 \| good	5.981 \| good	26.362 \| good	14.903 \| good	3.693 \| good	26.74 \| good	0.299 \| good
2026-01-25T05:00:00.000Z	33 \| good	6.218 \| good	27.077 \| good	15.259 \| good	3.574 \| good	25.564 \| good	0.319 \| good

Rancho Cucamonga

Empower business decisions with accurate air quality data

Rancho Cucamonga, California air quality map: Real-time AQI near you

0.58ppm

How accurate is California, USA air quality data?

Air quality measurements for California, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.

Source: Ambee Data Sources

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Frequently asked questions

How frequently is the air quality data for Rancho Cucamonga, California updated?

Air quality data for Rancho Cucamonga, California is updated on an hourly basis.

When did Rancho Cucamonga, California experience the worst air quality in the last 24 hours?

The worst air quality in Rancho Cucamonga, California was recorded at 06:00:00 on 2026-01-22.

When did Rancho Cucamonga, California have its best air quality in the last 24 hours?

The best air quality in Rancho Cucamonga, California was recorded at 02:00:00 on 2026-01-23.

What is the real-time air quality index for Rancho Cucamonga, California?

The real-time air quality index in Rancho Cucamonga, California is 81, currently categorized as Moderate.

Which pollutant is found most often in Rancho Cucamonga, California?

The most common pollutant in Rancho Cucamonga, California is PM2.5.

What can I do if the air quality in Rancho Cucamonga, California is poor?

If the air quality in Rancho Cucamonga, California is poor, limit outdoor activities and use a mask to safeguard your health.

What are the current PM_2.5 levels in Rancho Cucamonga, California?

The measured PM_2.5 levels in Rancho Cucamonga, California at present are 25.401 μg/m³.

What are the current PM₁₀ levels at Rancho Cucamonga, California?

The current PM₁₀ levels in Rancho Cucamonga, California are 42.095 μg/m³.

What are the current carbon monoxide (CO) levels at Rancho Cucamonga, California?

The current carbon monoxide (CO) level in Rancho Cucamonga, California is 0.568 ppm.

What are the current sulfur dioxide (SO₂) levels at Rancho Cucamonga, California?

The current sulfur dioxide (SO₂) levels in Rancho Cucamonga, California are 0.471 ppb.

What are the current ozone (O₃) levels at Rancho Cucamonga, California?

The current ozone (O₃) levels at Rancho Cucamonga, California is 19.947 ppm.

What are the current nitrogen dioxide (NO₂) levels at Rancho Cucamonga, California?

The current nitrogen dioxide (NO₂) levels at Rancho Cucamonga, California is 30.438 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-01-21T06:00:00.000Z	64 \| moderate	15.895 \| fine	49.431 \| good	9.883 \| good	0.568 \| good	38.976 \| good	0.645 \| good
2026-01-21T07:00:00.000Z	62 \| moderate	15.37 \| fine	49.698 \| good	11.04 \| good	0.608 \| good	38.976 \| good	0.645 \| good
2026-01-21T08:00:00.000Z	58 \| moderate	13.282 \| fine	43.455 \| good	6.199 \| good	0.701 \| good	38.203 \| good	0.497 \| good
2026-01-21T09:00:00.000Z	60 \| moderate	13.894 \| fine	47.704 \| good	7.525 \| good	0.644 \| good	35.869 \| good	0.497 \| good
2026-01-21T10:00:00.000Z	58 \| moderate	13.086 \| fine	44.859 \| good	7.029 \| good	0.529 \| good	34.479 \| good	0.433 \| good
2026-01-21T11:00:00.000Z	56 \| moderate	12.268 \| fine	31.836 \| good	5.442 \| good	0.658 \| good	38.677 \| good	0.684 \| good
2026-01-21T12:00:00.000Z	62 \| moderate	14.78 \| fine	35.062 \| good	5.663 \| good	0.63 \| good	32.614 \| good	0.549 \| good
2026-01-21T13:00:00.000Z	58 \| moderate	13.179 \| fine	34.249 \| good	5.973 \| good	0.618 \| good	32.614 \| good	0.549 \| good
2026-01-21T14:00:00.000Z	60 \| moderate	13.553 \| fine	37.773 \| good	5.546 \| good	0.916 \| good	28.934 \| good	0.601 \| good
2026-01-21T15:00:00.000Z	60 \| moderate	13.591 \| fine	48.953 \| good	6.116 \| good	1.113 \| good	30.456 \| good	0.733 \| good
2026-01-21T16:00:00.000Z	66 \| moderate	17.217 \| fine	49.153 \| good	5.407 \| good	1.238 \| good	32.419 \| good	0.862 \| good
2026-01-21T17:00:00.000Z	62 \| moderate	15.354 \| fine	43.261 \| good	10.092 \| good	1.371 \| good	37.363 \| good	0.736 \| good
2026-01-21T18:00:00.000Z	60 \| moderate	13.678 \| fine	45.965 \| good	10.473 \| good	0.932 \| good	39.672 \| good	0.761 \| good
2026-01-21T19:00:00.000Z	71 \| moderate	19.577 \| fine	56.33 \| fine	11.673 \| good	1.032 \| good	40.816 \| good	0.771 \| good
2026-01-21T20:00:00.000Z	67 \| moderate	18.089 \| fine	76.142 \| fine	12.096 \| good	0.795 \| good	42.416 \| good	0.611 \| good
2026-01-21T21:00:00.000Z	67 \| moderate	17.728 \| fine	57.081 \| fine	13.349 \| good	0.701 \| good	44.065 \| good	0.677 \| good
2026-01-21T22:00:00.000Z	64 \| moderate	16.357 \| fine	49.003 \| good	13.081 \| good	0.73 \| good	41.29 \| good	0.596 \| good
2026-01-21T23:00:00.000Z	64 \| moderate	16.116 \| fine	59.998 \| fine	17.023 \| good	0.743 \| good	40.042 \| good	0.576 \| good
2026-01-22T00:00:00.000Z	66 \| moderate	16.564 \| fine	61.776 \| fine	15.999 \| good	0.802 \| good	38.664 \| good	0.576 \| good
2026-01-22T01:00:00.000Z	71 \| moderate	19.804 \| fine	46.57 \| good	20.402 \| good	0.623 \| good	35.349 \| good	0.565 \| good
2026-01-22T02:00:00.000Z	81 \| moderate	24.562 \| fine	55.37 \| fine	14.402 \| good	0.605 \| good	43.178 \| good	0.732 \| good
2026-01-22T03:00:00.000Z	88 \| moderate	29.244 \| fine	56.996 \| fine	14.137 \| good	0.536 \| good	41.307 \| good	0.743 \| good
2026-01-22T04:00:00.000Z	96 \| moderate	32.774 \| fine	63.378 \| fine	9.408 \| good	0.566 \| good	40.495 \| good	0.717 \| good
2026-01-22T05:00:00.000Z	96 \| moderate	32.822 \| fine	58.574 \| fine	11.146 \| good	0.931 \| good	40.744 \| good	0.783 \| good
2026-01-22T06:00:00.000Z	94 \| moderate	31.758 \| fine	71.333 \| fine	7.821 \| good	0.737 \| good	39.988 \| good	0.817 \| good
2026-01-22T07:00:00.000Z	96 \| moderate	33.267 \| fine	59.235 \| fine	6.206 \| good	0.753 \| good	43.52 \| good	0.898 \| good
2026-01-22T08:00:00.000Z	90 \| moderate	30.325 \| fine	58.061 \| fine	5.603 \| good	0.767 \| good	42.598 \| good	0.807 \| good
2026-01-22T09:00:00.000Z	90 \| moderate	30.092 \| fine	53.526 \| good	2.689 \| good	0.758 \| good	38.977 \| good	0.792 \| good
2026-01-22T10:00:00.000Z	88 \| moderate	28.726 \| fine	60.452 \| fine	4.138 \| good	0.744 \| good	38.169 \| good	0.837 \| good
2026-01-22T11:00:00.000Z	77 \| moderate	23.253 \| fine	67.009 \| fine	3.587 \| good	0.817 \| good	37.173 \| good	0.729 \| good
2026-01-22T12:00:00.000Z	99 \| moderate	34.729 \| fine	87.542 \| fine	3.851 \| good	0.804 \| good	34.013 \| good	0.734 \| good
2026-01-22T13:00:00.000Z	96 \| moderate	33.344 \| fine	99.418 \| fine	3.024 \| good	0.804 \| good	34.013 \| good	0.734 \| good
2026-01-22T14:00:00.000Z	97 \| moderate	34.291 \| fine	77.151 \| fine	3.818 \| good	0.761 \| good	29.432 \| good	0.763 \| good
2026-01-22T15:00:00.000Z	110 \| sensitive	38.687 \| moderate	91.388 \| fine	2.929 \| good	0.923 \| good	29.688 \| good	0.798 \| good
2026-01-22T16:00:00.000Z	112 \| sensitive	40.359 \| moderate	99.095 \| fine	3.938 \| good	0.948 \| good	28.509 \| good	0.759 \| good
2026-01-22T17:00:00.000Z	102 \| sensitive	36.242 \| moderate	65.302 \| fine	6.02 \| good	1.079 \| good	29.587 \| good	0.728 \| good
2026-01-22T18:00:00.000Z	132 \| sensitive	47.589 \| moderate	83.751 \| fine	3.165 \| good	1.039 \| good	31.641 \| good	0.75 \| good
2026-01-22T19:00:00.000Z	102 \| sensitive	36.204 \| moderate	68.484 \| fine	7.95 \| good	0.842 \| good	37.755 \| good	0.802 \| good
2026-01-22T20:00:00.000Z	107 \| sensitive	38.249 \| moderate	62.203 \| fine	12.025 \| good	0.715 \| good	36.939 \| good	0.651 \| good
2026-01-22T21:00:00.000Z	112 \| sensitive	40.406 \| moderate	63.147 \| fine	13.638 \| good	0.696 \| good	34.916 \| good	0.707 \| good
2026-01-22T22:00:00.000Z	102 \| sensitive	36.414 \| moderate	59.337 \| fine	12.06 \| good	0.781 \| good	37.819 \| good	0.703 \| good
2026-01-22T23:00:00.000Z	94 \| moderate	32.411 \| fine	51.871 \| good	13.695 \| good	0.722 \| good	35.745 \| good	0.648 \| good
2026-01-23T00:00:00.000Z	127 \| sensitive	46.204 \| moderate	48.488 \| good	15.27 \| good	0.572 \| good	34.654 \| good	0.655 \| good
2026-01-23T01:00:00.000Z	44 \| good	8.4 \| good	38.389 \| good	18.477 \| good	0.554 \| good	37.286 \| good	0.699 \| good
2026-01-23T02:00:00.000Z	44 \| good	7.9 \| good	36.159 \| good	13.923 \| good	0.534 \| good	37.592 \| good	0.703 \| good
2026-01-23T03:00:00.000Z	86 \| moderate	28.14 \| fine	33.054 \| good	10.75 \| good	0.456 \| good	34.233 \| good	0.579 \| good
2026-01-23T04:00:00.000Z	81 \| moderate	25.401 \| fine	42.095 \| good	19.947 \| good	0.471 \| good	30.438 \| good	0.568 \| good
2026-01-23T05:00:00.000Z	81 \| moderate	25.401 \| fine	42.095 \| good	19.947 \| good	0.471 \| good	30.438 \| good	0.568 \| good
2026-01-23T06:00:00.000Z	52 \| moderate	10.343 \| good	45.509 \| good	9.061 \| good	4.254 \| good	36.56 \| good	0.43 \| good
2026-01-23T07:00:00.000Z	54 \| moderate	11.497 \| good	51.15 \| good	7.699 \| good	4.106 \| good	35.339 \| good	0.427 \| good
2026-01-23T08:00:00.000Z	60 \| moderate	13.625 \| fine	60.575 \| fine	9.415 \| good	3.958 \| good	34.119 \| good	0.424 \| good
2026-01-23T09:00:00.000Z	56 \| moderate	12.309 \| fine	54.506 \| good	11.187 \| good	3.809 \| good	32.899 \| good	0.421 \| good
2026-01-23T10:00:00.000Z	52 \| moderate	9.866 \| good	43.754 \| good	9.764 \| good	3.697 \| good	31.455 \| good	0.403 \| good
2026-01-23T11:00:00.000Z	58 \| moderate	12.809 \| fine	56.75 \| fine	8.392 \| good	3.585 \| good	30.011 \| good	0.384 \| good
2026-01-23T12:00:00.000Z	66 \| moderate	17.465 \| fine	77.132 \| fine	5.765 \| good	3.473 \| good	28.567 \| good	0.365 \| good
2026-01-23T13:00:00.000Z	62 \| moderate	14.551 \| fine	64.641 \| fine	6.759 \| good	3.724 \| good	28.858 \| good	0.372 \| good
2026-01-23T14:00:00.000Z	67 \| moderate	17.526 \| fine	77.05 \| fine	7.247 \| good	3.974 \| good	29.149 \| good	0.378 \| good
2026-01-23T15:00:00.000Z	71 \| moderate	20.449 \| fine	89.949 \| fine	6.728 \| good	4.225 \| good	29.439 \| good	0.384 \| good
2026-01-23T16:00:00.000Z	71 \| moderate	20.217 \| fine	89.221 \| fine	7.894 \| good	4.595 \| good	27.259 \| good	0.354 \| good
2026-01-23T17:00:00.000Z	69 \| moderate	18.718 \| fine	83.072 \| fine	9.87 \| good	4.966 \| good	25.079 \| good	0.324 \| good
2026-01-23T18:00:00.000Z	71 \| moderate	19.941 \| fine	87.288 \| fine	15.657 \| good	5.336 \| good	22.898 \| good	0.293 \| good
2026-01-23T19:00:00.000Z	64 \| moderate	15.783 \| fine	70.333 \| fine	26.61 \| good	4.34 \| good	19.184 \| good	0.252 \| good
2026-01-23T20:00:00.000Z	58 \| moderate	12.757 \| fine	57.013 \| fine	31.768 \| good	3.343 \| good	15.469 \| good	0.211 \| good
2026-01-23T21:00:00.000Z	56 \| moderate	11.562 \| good	51.32 \| good	31.173 \| good	2.347 \| good	11.755 \| good	0.171 \| good
2026-01-23T22:00:00.000Z	52 \| moderate	9.675 \| good	43.566 \| good	30.601 \| good	2.534 \| good	12.571 \| good	0.169 \| good
2026-01-23T23:00:00.000Z	56 \| moderate	11.662 \| good	51.495 \| good	31.225 \| good	2.721 \| good	13.388 \| good	0.168 \| good
2026-01-24T00:00:00.000Z	52 \| moderate	9.952 \| good	44.346 \| good	31.789 \| good	2.908 \| good	14.204 \| good	0.167 \| good
2026-01-24T01:00:00.000Z	54 \| moderate	10.902 \| good	48.257 \| good	27.753 \| good	3.425 \| good	21.631 \| good	0.218 \| good
2026-01-24T02:00:00.000Z	54 \| moderate	11.04 \| good	48.659 \| good	18.74 \| good	3.942 \| good	29.059 \| good	0.268 \| good
2026-01-24T03:00:00.000Z	58 \| moderate	12.578 \| fine	56.123 \| fine	14.146 \| good	4.459 \| good	36.486 \| good	0.319 \| good
2026-01-24T04:00:00.000Z	60 \| moderate	14.178 \| fine	63.594 \| fine	11.329 \| good	4.805 \| good	36.504 \| good	0.344 \| good
2026-01-24T05:00:00.000Z	64 \| moderate	15.745 \| fine	69.973 \| fine	8.877 \| good	5.151 \| good	36.521 \| good	0.368 \| good
2026-01-24T06:00:00.000Z	64 \| moderate	16.285 \| fine	72.332 \| fine	7.92 \| good	5.498 \| good	36.539 \| good	0.393 \| good
2026-01-24T07:00:00.000Z	69 \| moderate	18.683 \| fine	83.299 \| fine	7.711 \| good	5.559 \| good	35.558 \| good	0.377 \| good
2026-01-24T08:00:00.000Z	62 \| moderate	15.48 \| fine	69.125 \| fine	9.265 \| good	5.621 \| good	34.577 \| good	0.361 \| good
2026-01-24T09:00:00.000Z	58 \| moderate	13.178 \| fine	59.205 \| fine	9.307 \| good	5.683 \| good	33.596 \| good	0.346 \| good
2026-01-24T10:00:00.000Z	52 \| moderate	10.425 \| good	46.486 \| good	8.713 \| good	5.729 \| good	32.421 \| good	0.324 \| good
2026-01-24T11:00:00.000Z	54 \| moderate	11.309 \| good	49.875 \| good	8.315 \| good	5.776 \| good	31.246 \| good	0.303 \| good
2026-01-24T12:00:00.000Z	60 \| moderate	13.818 \| fine	61.415 \| fine	5.77 \| good	5.822 \| good	30.071 \| good	0.281 \| good
2026-01-24T13:00:00.000Z	58 \| moderate	13.489 \| fine	60.457 \| fine	5.089 \| good	5.762 \| good	28.9 \| good	0.285 \| good
2026-01-24T14:00:00.000Z	66 \| moderate	16.97 \| fine	74.801 \| fine	5.059 \| good	5.701 \| good	27.729 \| good	0.288 \| good
2026-01-24T15:00:00.000Z	64 \| moderate	16.406 \| fine	73.104 \| fine	4.98 \| good	5.64 \| good	26.558 \| good	0.291 \| good
2026-01-24T16:00:00.000Z	67 \| moderate	17.634 \| fine	77.834 \| fine	6.574 \| good	5.52 \| good	21.534 \| good	0.254 \| good
2026-01-24T17:00:00.000Z	60 \| moderate	13.508 \| fine	60.742 \| fine	12.99 \| good	5.4 \| good	16.511 \| good	0.216 \| good
2026-01-24T18:00:00.000Z	56 \| moderate	11.707 \| good	51.728 \| good	20.551 \| good	5.28 \| good	11.487 \| good	0.179 \| good
2026-01-24T19:00:00.000Z	44 \| good	7.596 \| good	33.382 \| good	31.927 \| good	4.417 \| good	9.64 \| good	0.168 \| good
2026-01-24T20:00:00.000Z	34 \| good	4.827 \| good	21.167 \| good	36.958 \| good	3.554 \| good	7.792 \| good	0.158 \| good
2026-01-24T21:00:00.000Z	35 \| good	3.55 \| good	15.202 \| good	38.104 \| good	2.69 \| good	5.944 \| good	0.147 \| good
2026-01-24T22:00:00.000Z	34 \| good	4.287 \| good	18.946 \| good	37.303 \| good	2.789 \| good	6.607 \| good	0.15 \| good
2026-01-24T23:00:00.000Z	36 \| good	3.772 \| good	16.361 \| good	38.594 \| good	2.887 \| good	7.27 \| good	0.153 \| good
2026-01-25T00:00:00.000Z	56 \| moderate	12.082 \| good	12.684 \| good	40.297 \| good	3.083 \| good	8.191 \| good	0.157 \| good
2026-01-25T01:00:00.000Z	38 \| good	6.979 \| good	30.964 \| good	34.111 \| good	3.262 \| good	14.594 \| good	0.197 \| good
2026-01-25T02:00:00.000Z	49 \| good	8.675 \| good	38.471 \| good	23.103 \| good	3.537 \| good	21.255 \| good	0.239 \| good
2026-01-25T03:00:00.000Z	38 \| good	6.9 \| good	30.093 \| good	17.373 \| good	3.813 \| good	27.917 \| good	0.28 \| good
2026-01-25T04:00:00.000Z	33 \| good	5.981 \| good	26.362 \| good	14.903 \| good	3.693 \| good	26.74 \| good	0.299 \| good
2026-01-25T05:00:00.000Z	33 \| good	6.218 \| good	27.077 \| good	15.259 \| good	3.574 \| good	25.564 \| good	0.319 \| good

Real-time air quality index in Rancho Cucamonga, California today

Common air pollutants in Rancho Cucamonga, California

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live Rancho Cucamonga, California air quality forecast and history

Empower business decisions with accurate air quality data

Rancho Cucamonga, California air quality map: Real-time AQI near you

Air quality in nearby cities

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Ontario, California

Montclair, California

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Fontana, California

How accurate is California, USA air quality data?

Air quality levels in US

Frequently asked questions

How frequently is the air quality data for Rancho Cucamonga, California updated?

When did Rancho Cucamonga, California experience the worst air quality in the last 24 hours?

When did Rancho Cucamonga, California have its best air quality in the last 24 hours?

What is the real-time air quality index for Rancho Cucamonga, California?

Which pollutant is found most often in Rancho Cucamonga, California?

What can I do if the air quality in Rancho Cucamonga, California is poor?

What are the current PM2.5 levels in Rancho Cucamonga, California?

What are the current PM10 levels at Rancho Cucamonga, California?

What are the current carbon monoxide (CO) levels at Rancho Cucamonga, California?

What are the current sulfur dioxide (SO2) levels at Rancho Cucamonga, California?

What are the current ozone (O3) levels at Rancho Cucamonga, California?

What are the current nitrogen dioxide (NO2) levels at Rancho Cucamonga, California?

Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

What are the current PM_2.5 levels in Rancho Cucamonga, California?

What are the current PM₁₀ levels at Rancho Cucamonga, California?

What are the current sulfur dioxide (SO₂) levels at Rancho Cucamonga, California?

What are the current ozone (O₃) levels at Rancho Cucamonga, California?

What are the current nitrogen dioxide (NO₂) levels at Rancho Cucamonga, California?