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

The current PM10 levels in Rancho Cucamonga, California are 50.064 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 1.205 ppb.

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

The current ozone (O3) levels at Rancho Cucamonga, California is 7.919 ppm.

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

The current nitrogen dioxide (NO2) levels at Rancho Cucamonga, California is 39.11 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 16.506 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)

16.51 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

50.06 μg/m³

155

255

425

605+

Ozone (O₃)

7.92 ppb

201

201+

Sulfur Dioxide (SO₂)

1.21 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

39.11 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.85 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
2025-12-06T06:00:00.000Z	71 \| moderate	20.463 \| fine	65.093 \| fine	6.693 \| good	1.539 \| good	43.008 \| good	0.831 \| good
2025-12-06T07:00:00.000Z	69 \| moderate	18.74 \| fine	56.45 \| fine	6.191 \| good	1.575 \| good	43.008 \| good	0.831 \| good
2025-12-06T08:00:00.000Z	64 \| moderate	16.144 \| fine	42.715 \| good	2.989 \| good	1.453 \| good	36.623 \| good	0.768 \| good
2025-12-06T09:00:00.000Z	69 \| moderate	19.312 \| fine	54.541 \| good	2.744 \| good	1.434 \| good	34.786 \| good	0.764 \| good
2025-12-06T10:00:00.000Z	64 \| moderate	16.438 \| fine	39.806 \| good	3.485 \| good	1.388 \| good	33.043 \| good	0.658 \| good
2025-12-06T11:00:00.000Z	58 \| moderate	13.132 \| fine	35.328 \| good	3.094 \| good	1.251 \| good	29.888 \| good	0.554 \| good
2025-12-06T12:00:00.000Z	64 \| moderate	16.299 \| fine	53.539 \| good	3.154 \| good	1.07 \| good	28.857 \| good	0.529 \| good
2025-12-06T13:00:00.000Z	66 \| moderate	16.729 \| fine	64.258 \| fine	3.372 \| good	1.069 \| good	28.857 \| good	0.529 \| good
2025-12-06T14:00:00.000Z	64 \| moderate	15.506 \| fine	42.615 \| good	5.082 \| good	1.193 \| good	28.097 \| good	0.609 \| good
2025-12-06T15:00:00.000Z	62 \| moderate	14.584 \| fine	36.171 \| good	4.671 \| good	1.577 \| good	29.436 \| good	0.648 \| good
2025-12-06T16:00:00.000Z	62 \| moderate	14.836 \| fine	58.93 \| fine	6.641 \| good	1.547 \| good	30.037 \| good	0.704 \| good
2025-12-06T17:00:00.000Z	62 \| moderate	15.279 \| fine	52.809 \| good	8.294 \| good	1.379 \| good	32.827 \| good	0.617 \| good
2025-12-06T18:00:00.000Z	60 \| moderate	14.108 \| fine	52.407 \| good	11.817 \| good	1.114 \| good	31.67 \| good	0.514 \| good
2025-12-06T19:00:00.000Z	52 \| moderate	10.485 \| good	40.501 \| good	14.95 \| good	1.318 \| good	32.364 \| good	0.469 \| good
2025-12-06T20:00:00.000Z	44 \| good	8.074 \| good	24.524 \| good	21.874 \| good	1.126 \| good	25.056 \| good	0.332 \| good
2025-12-06T21:00:00.000Z	38 \| good	7.007 \| good	33.473 \| good	27.861 \| good	0.912 \| good	20.321 \| good	0.3 \| good
2025-12-06T22:00:00.000Z	44 \| good	8.138 \| good	32.98 \| good	31.631 \| good	0.832 \| good	18.55 \| good	0.259 \| good
2025-12-06T23:00:00.000Z	52 \| moderate	10.01 \| good	17.936 \| good	34.147 \| good	0.952 \| good	19.23 \| good	0.32 \| good
2025-12-07T00:00:00.000Z	49 \| good	8.715 \| good	18.602 \| good	35.719 \| good	0.948 \| good	22.535 \| good	0.324 \| good
2025-12-07T01:00:00.000Z	44 \| good	8.187 \| good	38.259 \| good	31.842 \| good	1.036 \| good	30.778 \| good	0.453 \| good
2025-12-07T02:00:00.000Z	54 \| moderate	10.551 \| good	35.685 \| good	30.982 \| good	1.063 \| good	35.547 \| good	0.563 \| good
2025-12-07T03:00:00.000Z	56 \| moderate	12.429 \| fine	41.596 \| good	22.362 \| good	1.013 \| good	37.512 \| good	0.643 \| good
2025-12-07T04:00:00.000Z	64 \| moderate	15.764 \| fine	49.108 \| good	16.807 \| good	1.275 \| good	37.785 \| good	0.83 \| good
2025-12-07T05:00:00.000Z	71 \| moderate	20.32 \| fine	59.406 \| fine	14.412 \| good	1.304 \| good	36.056 \| good	0.858 \| good
2025-12-07T06:00:00.000Z	75 \| moderate	22.289 \| fine	66.289 \| fine	7.32 \| good	1.078 \| good	36.381 \| good	0.85 \| good
2025-12-07T07:00:00.000Z	73 \| moderate	20.944 \| fine	58.556 \| fine	7.687 \| good	1.087 \| good	36.381 \| good	0.85 \| good
2025-12-07T08:00:00.000Z	77 \| moderate	22.705 \| fine	63.023 \| fine	4.894 \| good	1.156 \| good	35.129 \| good	0.811 \| good
2025-12-07T09:00:00.000Z	67 \| moderate	18.013 \| fine	36.408 \| good	2.608 \| good	1.045 \| good	32.892 \| good	0.696 \| good
2025-12-07T10:00:00.000Z	71 \| moderate	19.654 \| fine	54.098 \| good	3.012 \| good	0.982 \| good	31.497 \| good	0.657 \| good
2025-12-07T11:00:00.000Z	75 \| moderate	21.929 \| fine	48.752 \| good	3.583 \| good	0.978 \| good	31.497 \| good	0.657 \| good
2025-12-07T12:00:00.000Z	71 \| moderate	19.639 \| fine	42.17 \| good	3.019 \| good	0.963 \| good	31.497 \| good	0.656 \| good
2025-12-07T13:00:00.000Z	52 \| moderate	9.871 \| good	51.416 \| good	8.753 \| good	0.854 \| good	8.265 \| good	0.877 \| good
2025-12-07T14:00:00.000Z	62 \| moderate	15.39 \| fine	35.771 \| good	4.808 \| good	0.938 \| good	23.551 \| good	0.556 \| good
2025-12-07T15:00:00.000Z	58 \| moderate	13.423 \| fine	34.007 \| good	5.133 \| good	1.22 \| good	26.946 \| good	0.608 \| good
2025-12-07T16:00:00.000Z	64 \| moderate	15.964 \| fine	35.573 \| good	6.129 \| good	1.191 \| good	26.683 \| good	0.617 \| good
2025-12-07T17:00:00.000Z	62 \| moderate	14.824 \| fine	32.157 \| good	11.741 \| good	1.069 \| good	27.673 \| good	0.552 \| good
2025-12-07T18:00:00.000Z	60 \| moderate	14.072 \| fine	29.42 \| good	15.559 \| good	1.072 \| good	30.766 \| good	0.533 \| good
2025-12-07T19:00:00.000Z	60 \| moderate	14.087 \| fine	27.791 \| good	21.414 \| good	1.009 \| good	22.882 \| good	0.34 \| good
2025-12-07T20:00:00.000Z	54 \| moderate	11.155 \| good	25.424 \| good	26.285 \| good	0.943 \| good	23.311 \| good	0.337 \| good
2025-12-07T21:00:00.000Z	44 \| good	7.99 \| good	21.696 \| good	31.554 \| good	0.909 \| good	23.661 \| good	0.361 \| good
2025-12-07T22:00:00.000Z	49 \| good	8.649 \| good	24.3 \| good	34.135 \| good	0.906 \| good	22.12 \| good	0.301 \| good
2025-12-07T23:00:00.000Z	54 \| moderate	10.969 \| good	33.078 \| good	35.67 \| good	1.041 \| good	21.008 \| good	0.312 \| good
2025-12-08T00:00:00.000Z	52 \| moderate	10.382 \| good	31.362 \| good	35.533 \| good	0.995 \| good	21.563 \| good	0.355 \| good
2025-12-08T01:00:00.000Z	54 \| moderate	11.031 \| good	29.009 \| good	32.603 \| good	0.837 \| good	32.706 \| good	0.481 \| good
2025-12-08T02:00:00.000Z	58 \| moderate	12.851 \| fine	39.752 \| good	26.666 \| good	0.805 \| good	42.191 \| good	0.747 \| good
2025-12-08T03:00:00.000Z	60 \| moderate	13.754 \| fine	52.178 \| good	15.002 \| good	1.019 \| good	42.702 \| good	0.904 \| good
2025-12-08T04:00:00.000Z	69 \| moderate	18.596 \| fine	57.011 \| fine	12.651 \| good	1.031 \| good	40.826 \| good	0.769 \| good
2025-12-08T05:00:00.000Z	66 \| moderate	16.506 \| fine	50.064 \| good	7.919 \| good	1.205 \| good	39.11 \| good	0.855 \| good
2025-12-08T05:00:00.000Z	66 \| moderate	16.506 \| fine	50.064 \| good	7.919 \| good	1.205 \| good	39.11 \| good	0.855 \| good
2025-12-08T06:00:00.000Z	64 \| moderate	16.034 \| fine	71.252 \| fine	12.086 \| good	2.772 \| good	34.671 \| good	0.474 \| good
2025-12-08T07:00:00.000Z	62 \| moderate	15.236 \| fine	67.796 \| fine	13.123 \| good	2.329 \| good	32.521 \| good	0.426 \| good
2025-12-08T08:00:00.000Z	62 \| moderate	15.101 \| fine	67.114 \| fine	13.746 \| good	1.886 \| good	30.371 \| good	0.379 \| good
2025-12-08T09:00:00.000Z	58 \| moderate	13.378 \| fine	59.183 \| fine	13.32 \| good	1.443 \| good	28.221 \| good	0.332 \| good
2025-12-08T10:00:00.000Z	54 \| moderate	10.777 \| good	47.236 \| good	12.798 \| good	1.375 \| good	25.519 \| good	0.293 \| good
2025-12-08T11:00:00.000Z	54 \| moderate	11.259 \| good	49.159 \| good	11.222 \| good	1.307 \| good	22.817 \| good	0.255 \| good
2025-12-08T12:00:00.000Z	38 \| good	7.098 \| good	30.998 \| good	11.912 \| good	1.239 \| good	20.115 \| good	0.217 \| good
2025-12-08T13:00:00.000Z	27 \| good	4.846 \| good	21.33 \| good	12.332 \| good	1.357 \| good	20.136 \| good	0.218 \| good
2025-12-08T14:00:00.000Z	22 \| good	3.998 \| good	17.094 \| good	14.989 \| good	1.475 \| good	20.158 \| good	0.22 \| good
2025-12-08T15:00:00.000Z	33 \| good	6.145 \| good	26.529 \| good	14.305 \| good	1.593 \| good	20.179 \| good	0.222 \| good
2025-12-08T16:00:00.000Z	27 \| good	4.837 \| good	21.225 \| good	20.246 \| good	1.685 \| good	17.511 \| good	0.224 \| good
2025-12-08T17:00:00.000Z	22 \| good	3.742 \| good	16.188 \| good	23.839 \| good	1.776 \| good	14.842 \| good	0.226 \| good
2025-12-08T18:00:00.000Z	26 \| good	1.777 \| good	7.356 \| good	28.489 \| good	1.867 \| good	12.173 \| good	0.229 \| good
2025-12-08T19:00:00.000Z	32 \| good	1.216 \| good	4.707 \| good	34.991 \| good	1.863 \| good	10.279 \| good	0.205 \| good
2025-12-08T20:00:00.000Z	34 \| good	0.797 \| good	3.038 \| good	37.332 \| good	1.858 \| good	8.385 \| good	0.181 \| good
2025-12-08T21:00:00.000Z	35 \| good	1.274 \| good	5.23 \| good	38.065 \| good	1.854 \| good	6.491 \| good	0.157 \| good
2025-12-08T22:00:00.000Z	35 \| good	1.197 \| good	4.711 \| good	37.54 \| good	1.988 \| good	8.445 \| good	0.163 \| good
2025-12-08T23:00:00.000Z	31 \| good	1.933 \| good	8.07 \| good	34.044 \| good	2.121 \| good	10.4 \| good	0.17 \| good
2025-12-09T00:00:00.000Z	27 \| good	2.382 \| good	9.942 \| good	29.057 \| good	2.255 \| good	12.354 \| good	0.177 \| good
2025-12-09T01:00:00.000Z	26 \| good	2.218 \| good	9.463 \| good	27.823 \| good	2.259 \| good	18.15 \| good	0.221 \| good
2025-12-09T02:00:00.000Z	29 \| good	1.778 \| good	7.589 \| good	31.024 \| good	2.262 \| good	23.946 \| good	0.266 \| good
2025-12-09T03:00:00.000Z	28 \| good	1.556 \| good	6.055 \| good	29.285 \| good	2.266 \| good	29.742 \| good	0.311 \| good
2025-12-09T04:00:00.000Z	26 \| good	1.586 \| good	6.21 \| good	22.118 \| good	2.012 \| good	27.868 \| good	0.291 \| good
2025-12-09T05:00:00.000Z	25 \| good	1.793 \| good	7.305 \| good	18.524 \| good	1.759 \| good	25.994 \| good	0.27 \| good
2025-12-09T06:00:00.000Z	23 \| good	2.594 \| good	10.972 \| good	19.469 \| good	1.505 \| good	24.12 \| good	0.25 \| good
2025-12-09T07:00:00.000Z	21 \| good	1.583 \| good	6.478 \| good	17.675 \| good	1.405 \| good	21.713 \| good	0.226 \| good
2025-12-09T08:00:00.000Z	18 \| good	1.781 \| good	7.152 \| good	15.7 \| good	1.304 \| good	19.306 \| good	0.201 \| good
2025-12-09T09:00:00.000Z	16 \| good	1.232 \| good	4.827 \| good	15.444 \| good	1.204 \| good	16.9 \| good	0.176 \| good
2025-12-09T10:00:00.000Z	14 \| good	1.346 \| good	5.454 \| good	14.807 \| good	1.257 \| good	14.749 \| good	0.163 \| good
2025-12-09T11:00:00.000Z	13 \| good	1.912 \| good	8.016 \| good	14.04 \| good	1.31 \| good	12.599 \| good	0.149 \| good
2025-12-09T12:00:00.000Z	13 \| good	1.534 \| good	6.485 \| good	14.008 \| good	1.364 \| good	10.449 \| good	0.136 \| good
2025-12-09T13:00:00.000Z	13 \| good	1.188 \| good	4.941 \| good	13.633 \| good	1.489 \| good	12.915 \| good	0.149 \| good
2025-12-09T14:00:00.000Z	14 \| good	1.618 \| good	6.518 \| good	14.844 \| good	1.615 \| good	15.382 \| good	0.163 \| good
2025-12-09T15:00:00.000Z	17 \| good	2.346 \| good	9.921 \| good	14.658 \| good	1.741 \| good	17.849 \| good	0.176 \| good
2025-12-09T16:00:00.000Z	16 \| good	2.515 \| good	10.578 \| good	14.724 \| good	1.855 \| good	16.226 \| good	0.184 \| good
2025-12-09T17:00:00.000Z	22 \| good	3.618 \| good	14.767 \| good	17.935 \| good	1.969 \| good	14.603 \| good	0.191 \| good
2025-12-09T18:00:00.000Z	21 \| good	1.504 \| good	5.876 \| good	22.594 \| good	2.083 \| good	12.98 \| good	0.198 \| good
2025-12-09T19:00:00.000Z	26 \| good	1.553 \| good	6.435 \| good	28.198 \| good	2.129 \| good	11.108 \| good	0.178 \| good
2025-12-09T20:00:00.000Z	31 \| good	1.724 \| good	7.119 \| good	34.132 \| good	2.176 \| good	9.237 \| good	0.158 \| good
2025-12-09T21:00:00.000Z	34 \| good	1.059 \| good	4.082 \| good	37.462 \| good	2.223 \| good	7.365 \| good	0.137 \| good
2025-12-09T22:00:00.000Z	35 \| good	1.438 \| good	6.003 \| good	38.207 \| good	2.43 \| good	10.117 \| good	0.15 \| good
2025-12-09T23:00:00.000Z	32 \| good	1.581 \| good	6.604 \| good	34.56 \| good	2.637 \| good	12.87 \| good	0.162 \| good
2025-12-10T00:00:00.000Z	49 \| good	9.192 \| good	9.475 \| good	32.582 \| good	2.891 \| good	15.881 \| good	0.175 \| good
2025-12-10T01:00:00.000Z	22 \| good	3.588 \| good	15.46 \| good	19.223 \| good	2.895 \| good	21.671 \| good	0.24 \| good
2025-12-10T02:00:00.000Z	26 \| good	2.951 \| good	12.215 \| good	19.52 \| good	2.945 \| good	27.719 \| good	0.306 \| good
2025-12-10T03:00:00.000Z	32 \| good	2.69 \| good	11.55 \| good	19.074 \| good	2.996 \| good	33.767 \| good	0.372 \| good
2025-12-10T04:00:00.000Z	30 \| good	2.541 \| good	10.839 \| good	11.794 \| good	2.626 \| good	31.949 \| good	0.345 \| good
2025-12-10T05:00:00.000Z	28 \| good	2.538 \| good	10.558 \| good	12.473 \| good	2.257 \| good	30.131 \| good	0.318 \| good

Rancho Cucamonga

Empower business decisions with accurate air quality data

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

0.88ppm

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 08:00:00 on 2025-12-07.

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 09:00:00 on 2025-12-07.

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

The real-time air quality index in Rancho Cucamonga, California is 66, 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 16.506 μg/m³.

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

The current PM₁₀ levels in Rancho Cucamonga, California are 50.064 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 0.855 ppm.

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

The current sulfur dioxide (SO₂) levels in Rancho Cucamonga, California are 1.205 ppb.

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

The current ozone (O₃) levels at Rancho Cucamonga, California is 7.919 ppm.

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

The current nitrogen dioxide (NO₂) levels at Rancho Cucamonga, California is 39.11 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-12-06T06:00:00.000Z	71 \| moderate	20.463 \| fine	65.093 \| fine	6.693 \| good	1.539 \| good	43.008 \| good	0.831 \| good
2025-12-06T07:00:00.000Z	69 \| moderate	18.74 \| fine	56.45 \| fine	6.191 \| good	1.575 \| good	43.008 \| good	0.831 \| good
2025-12-06T08:00:00.000Z	64 \| moderate	16.144 \| fine	42.715 \| good	2.989 \| good	1.453 \| good	36.623 \| good	0.768 \| good
2025-12-06T09:00:00.000Z	69 \| moderate	19.312 \| fine	54.541 \| good	2.744 \| good	1.434 \| good	34.786 \| good	0.764 \| good
2025-12-06T10:00:00.000Z	64 \| moderate	16.438 \| fine	39.806 \| good	3.485 \| good	1.388 \| good	33.043 \| good	0.658 \| good
2025-12-06T11:00:00.000Z	58 \| moderate	13.132 \| fine	35.328 \| good	3.094 \| good	1.251 \| good	29.888 \| good	0.554 \| good
2025-12-06T12:00:00.000Z	64 \| moderate	16.299 \| fine	53.539 \| good	3.154 \| good	1.07 \| good	28.857 \| good	0.529 \| good
2025-12-06T13:00:00.000Z	66 \| moderate	16.729 \| fine	64.258 \| fine	3.372 \| good	1.069 \| good	28.857 \| good	0.529 \| good
2025-12-06T14:00:00.000Z	64 \| moderate	15.506 \| fine	42.615 \| good	5.082 \| good	1.193 \| good	28.097 \| good	0.609 \| good
2025-12-06T15:00:00.000Z	62 \| moderate	14.584 \| fine	36.171 \| good	4.671 \| good	1.577 \| good	29.436 \| good	0.648 \| good
2025-12-06T16:00:00.000Z	62 \| moderate	14.836 \| fine	58.93 \| fine	6.641 \| good	1.547 \| good	30.037 \| good	0.704 \| good
2025-12-06T17:00:00.000Z	62 \| moderate	15.279 \| fine	52.809 \| good	8.294 \| good	1.379 \| good	32.827 \| good	0.617 \| good
2025-12-06T18:00:00.000Z	60 \| moderate	14.108 \| fine	52.407 \| good	11.817 \| good	1.114 \| good	31.67 \| good	0.514 \| good
2025-12-06T19:00:00.000Z	52 \| moderate	10.485 \| good	40.501 \| good	14.95 \| good	1.318 \| good	32.364 \| good	0.469 \| good
2025-12-06T20:00:00.000Z	44 \| good	8.074 \| good	24.524 \| good	21.874 \| good	1.126 \| good	25.056 \| good	0.332 \| good
2025-12-06T21:00:00.000Z	38 \| good	7.007 \| good	33.473 \| good	27.861 \| good	0.912 \| good	20.321 \| good	0.3 \| good
2025-12-06T22:00:00.000Z	44 \| good	8.138 \| good	32.98 \| good	31.631 \| good	0.832 \| good	18.55 \| good	0.259 \| good
2025-12-06T23:00:00.000Z	52 \| moderate	10.01 \| good	17.936 \| good	34.147 \| good	0.952 \| good	19.23 \| good	0.32 \| good
2025-12-07T00:00:00.000Z	49 \| good	8.715 \| good	18.602 \| good	35.719 \| good	0.948 \| good	22.535 \| good	0.324 \| good
2025-12-07T01:00:00.000Z	44 \| good	8.187 \| good	38.259 \| good	31.842 \| good	1.036 \| good	30.778 \| good	0.453 \| good
2025-12-07T02:00:00.000Z	54 \| moderate	10.551 \| good	35.685 \| good	30.982 \| good	1.063 \| good	35.547 \| good	0.563 \| good
2025-12-07T03:00:00.000Z	56 \| moderate	12.429 \| fine	41.596 \| good	22.362 \| good	1.013 \| good	37.512 \| good	0.643 \| good
2025-12-07T04:00:00.000Z	64 \| moderate	15.764 \| fine	49.108 \| good	16.807 \| good	1.275 \| good	37.785 \| good	0.83 \| good
2025-12-07T05:00:00.000Z	71 \| moderate	20.32 \| fine	59.406 \| fine	14.412 \| good	1.304 \| good	36.056 \| good	0.858 \| good
2025-12-07T06:00:00.000Z	75 \| moderate	22.289 \| fine	66.289 \| fine	7.32 \| good	1.078 \| good	36.381 \| good	0.85 \| good
2025-12-07T07:00:00.000Z	73 \| moderate	20.944 \| fine	58.556 \| fine	7.687 \| good	1.087 \| good	36.381 \| good	0.85 \| good
2025-12-07T08:00:00.000Z	77 \| moderate	22.705 \| fine	63.023 \| fine	4.894 \| good	1.156 \| good	35.129 \| good	0.811 \| good
2025-12-07T09:00:00.000Z	67 \| moderate	18.013 \| fine	36.408 \| good	2.608 \| good	1.045 \| good	32.892 \| good	0.696 \| good
2025-12-07T10:00:00.000Z	71 \| moderate	19.654 \| fine	54.098 \| good	3.012 \| good	0.982 \| good	31.497 \| good	0.657 \| good
2025-12-07T11:00:00.000Z	75 \| moderate	21.929 \| fine	48.752 \| good	3.583 \| good	0.978 \| good	31.497 \| good	0.657 \| good
2025-12-07T12:00:00.000Z	71 \| moderate	19.639 \| fine	42.17 \| good	3.019 \| good	0.963 \| good	31.497 \| good	0.656 \| good
2025-12-07T13:00:00.000Z	52 \| moderate	9.871 \| good	51.416 \| good	8.753 \| good	0.854 \| good	8.265 \| good	0.877 \| good
2025-12-07T14:00:00.000Z	62 \| moderate	15.39 \| fine	35.771 \| good	4.808 \| good	0.938 \| good	23.551 \| good	0.556 \| good
2025-12-07T15:00:00.000Z	58 \| moderate	13.423 \| fine	34.007 \| good	5.133 \| good	1.22 \| good	26.946 \| good	0.608 \| good
2025-12-07T16:00:00.000Z	64 \| moderate	15.964 \| fine	35.573 \| good	6.129 \| good	1.191 \| good	26.683 \| good	0.617 \| good
2025-12-07T17:00:00.000Z	62 \| moderate	14.824 \| fine	32.157 \| good	11.741 \| good	1.069 \| good	27.673 \| good	0.552 \| good
2025-12-07T18:00:00.000Z	60 \| moderate	14.072 \| fine	29.42 \| good	15.559 \| good	1.072 \| good	30.766 \| good	0.533 \| good
2025-12-07T19:00:00.000Z	60 \| moderate	14.087 \| fine	27.791 \| good	21.414 \| good	1.009 \| good	22.882 \| good	0.34 \| good
2025-12-07T20:00:00.000Z	54 \| moderate	11.155 \| good	25.424 \| good	26.285 \| good	0.943 \| good	23.311 \| good	0.337 \| good
2025-12-07T21:00:00.000Z	44 \| good	7.99 \| good	21.696 \| good	31.554 \| good	0.909 \| good	23.661 \| good	0.361 \| good
2025-12-07T22:00:00.000Z	49 \| good	8.649 \| good	24.3 \| good	34.135 \| good	0.906 \| good	22.12 \| good	0.301 \| good
2025-12-07T23:00:00.000Z	54 \| moderate	10.969 \| good	33.078 \| good	35.67 \| good	1.041 \| good	21.008 \| good	0.312 \| good
2025-12-08T00:00:00.000Z	52 \| moderate	10.382 \| good	31.362 \| good	35.533 \| good	0.995 \| good	21.563 \| good	0.355 \| good
2025-12-08T01:00:00.000Z	54 \| moderate	11.031 \| good	29.009 \| good	32.603 \| good	0.837 \| good	32.706 \| good	0.481 \| good
2025-12-08T02:00:00.000Z	58 \| moderate	12.851 \| fine	39.752 \| good	26.666 \| good	0.805 \| good	42.191 \| good	0.747 \| good
2025-12-08T03:00:00.000Z	60 \| moderate	13.754 \| fine	52.178 \| good	15.002 \| good	1.019 \| good	42.702 \| good	0.904 \| good
2025-12-08T04:00:00.000Z	69 \| moderate	18.596 \| fine	57.011 \| fine	12.651 \| good	1.031 \| good	40.826 \| good	0.769 \| good
2025-12-08T05:00:00.000Z	66 \| moderate	16.506 \| fine	50.064 \| good	7.919 \| good	1.205 \| good	39.11 \| good	0.855 \| good
2025-12-08T05:00:00.000Z	66 \| moderate	16.506 \| fine	50.064 \| good	7.919 \| good	1.205 \| good	39.11 \| good	0.855 \| good
2025-12-08T06:00:00.000Z	64 \| moderate	16.034 \| fine	71.252 \| fine	12.086 \| good	2.772 \| good	34.671 \| good	0.474 \| good
2025-12-08T07:00:00.000Z	62 \| moderate	15.236 \| fine	67.796 \| fine	13.123 \| good	2.329 \| good	32.521 \| good	0.426 \| good
2025-12-08T08:00:00.000Z	62 \| moderate	15.101 \| fine	67.114 \| fine	13.746 \| good	1.886 \| good	30.371 \| good	0.379 \| good
2025-12-08T09:00:00.000Z	58 \| moderate	13.378 \| fine	59.183 \| fine	13.32 \| good	1.443 \| good	28.221 \| good	0.332 \| good
2025-12-08T10:00:00.000Z	54 \| moderate	10.777 \| good	47.236 \| good	12.798 \| good	1.375 \| good	25.519 \| good	0.293 \| good
2025-12-08T11:00:00.000Z	54 \| moderate	11.259 \| good	49.159 \| good	11.222 \| good	1.307 \| good	22.817 \| good	0.255 \| good
2025-12-08T12:00:00.000Z	38 \| good	7.098 \| good	30.998 \| good	11.912 \| good	1.239 \| good	20.115 \| good	0.217 \| good
2025-12-08T13:00:00.000Z	27 \| good	4.846 \| good	21.33 \| good	12.332 \| good	1.357 \| good	20.136 \| good	0.218 \| good
2025-12-08T14:00:00.000Z	22 \| good	3.998 \| good	17.094 \| good	14.989 \| good	1.475 \| good	20.158 \| good	0.22 \| good
2025-12-08T15:00:00.000Z	33 \| good	6.145 \| good	26.529 \| good	14.305 \| good	1.593 \| good	20.179 \| good	0.222 \| good
2025-12-08T16:00:00.000Z	27 \| good	4.837 \| good	21.225 \| good	20.246 \| good	1.685 \| good	17.511 \| good	0.224 \| good
2025-12-08T17:00:00.000Z	22 \| good	3.742 \| good	16.188 \| good	23.839 \| good	1.776 \| good	14.842 \| good	0.226 \| good
2025-12-08T18:00:00.000Z	26 \| good	1.777 \| good	7.356 \| good	28.489 \| good	1.867 \| good	12.173 \| good	0.229 \| good
2025-12-08T19:00:00.000Z	32 \| good	1.216 \| good	4.707 \| good	34.991 \| good	1.863 \| good	10.279 \| good	0.205 \| good
2025-12-08T20:00:00.000Z	34 \| good	0.797 \| good	3.038 \| good	37.332 \| good	1.858 \| good	8.385 \| good	0.181 \| good
2025-12-08T21:00:00.000Z	35 \| good	1.274 \| good	5.23 \| good	38.065 \| good	1.854 \| good	6.491 \| good	0.157 \| good
2025-12-08T22:00:00.000Z	35 \| good	1.197 \| good	4.711 \| good	37.54 \| good	1.988 \| good	8.445 \| good	0.163 \| good
2025-12-08T23:00:00.000Z	31 \| good	1.933 \| good	8.07 \| good	34.044 \| good	2.121 \| good	10.4 \| good	0.17 \| good
2025-12-09T00:00:00.000Z	27 \| good	2.382 \| good	9.942 \| good	29.057 \| good	2.255 \| good	12.354 \| good	0.177 \| good
2025-12-09T01:00:00.000Z	26 \| good	2.218 \| good	9.463 \| good	27.823 \| good	2.259 \| good	18.15 \| good	0.221 \| good
2025-12-09T02:00:00.000Z	29 \| good	1.778 \| good	7.589 \| good	31.024 \| good	2.262 \| good	23.946 \| good	0.266 \| good
2025-12-09T03:00:00.000Z	28 \| good	1.556 \| good	6.055 \| good	29.285 \| good	2.266 \| good	29.742 \| good	0.311 \| good
2025-12-09T04:00:00.000Z	26 \| good	1.586 \| good	6.21 \| good	22.118 \| good	2.012 \| good	27.868 \| good	0.291 \| good
2025-12-09T05:00:00.000Z	25 \| good	1.793 \| good	7.305 \| good	18.524 \| good	1.759 \| good	25.994 \| good	0.27 \| good
2025-12-09T06:00:00.000Z	23 \| good	2.594 \| good	10.972 \| good	19.469 \| good	1.505 \| good	24.12 \| good	0.25 \| good
2025-12-09T07:00:00.000Z	21 \| good	1.583 \| good	6.478 \| good	17.675 \| good	1.405 \| good	21.713 \| good	0.226 \| good
2025-12-09T08:00:00.000Z	18 \| good	1.781 \| good	7.152 \| good	15.7 \| good	1.304 \| good	19.306 \| good	0.201 \| good
2025-12-09T09:00:00.000Z	16 \| good	1.232 \| good	4.827 \| good	15.444 \| good	1.204 \| good	16.9 \| good	0.176 \| good
2025-12-09T10:00:00.000Z	14 \| good	1.346 \| good	5.454 \| good	14.807 \| good	1.257 \| good	14.749 \| good	0.163 \| good
2025-12-09T11:00:00.000Z	13 \| good	1.912 \| good	8.016 \| good	14.04 \| good	1.31 \| good	12.599 \| good	0.149 \| good
2025-12-09T12:00:00.000Z	13 \| good	1.534 \| good	6.485 \| good	14.008 \| good	1.364 \| good	10.449 \| good	0.136 \| good
2025-12-09T13:00:00.000Z	13 \| good	1.188 \| good	4.941 \| good	13.633 \| good	1.489 \| good	12.915 \| good	0.149 \| good
2025-12-09T14:00:00.000Z	14 \| good	1.618 \| good	6.518 \| good	14.844 \| good	1.615 \| good	15.382 \| good	0.163 \| good
2025-12-09T15:00:00.000Z	17 \| good	2.346 \| good	9.921 \| good	14.658 \| good	1.741 \| good	17.849 \| good	0.176 \| good
2025-12-09T16:00:00.000Z	16 \| good	2.515 \| good	10.578 \| good	14.724 \| good	1.855 \| good	16.226 \| good	0.184 \| good
2025-12-09T17:00:00.000Z	22 \| good	3.618 \| good	14.767 \| good	17.935 \| good	1.969 \| good	14.603 \| good	0.191 \| good
2025-12-09T18:00:00.000Z	21 \| good	1.504 \| good	5.876 \| good	22.594 \| good	2.083 \| good	12.98 \| good	0.198 \| good
2025-12-09T19:00:00.000Z	26 \| good	1.553 \| good	6.435 \| good	28.198 \| good	2.129 \| good	11.108 \| good	0.178 \| good
2025-12-09T20:00:00.000Z	31 \| good	1.724 \| good	7.119 \| good	34.132 \| good	2.176 \| good	9.237 \| good	0.158 \| good
2025-12-09T21:00:00.000Z	34 \| good	1.059 \| good	4.082 \| good	37.462 \| good	2.223 \| good	7.365 \| good	0.137 \| good
2025-12-09T22:00:00.000Z	35 \| good	1.438 \| good	6.003 \| good	38.207 \| good	2.43 \| good	10.117 \| good	0.15 \| good
2025-12-09T23:00:00.000Z	32 \| good	1.581 \| good	6.604 \| good	34.56 \| good	2.637 \| good	12.87 \| good	0.162 \| good
2025-12-10T00:00:00.000Z	49 \| good	9.192 \| good	9.475 \| good	32.582 \| good	2.891 \| good	15.881 \| good	0.175 \| good
2025-12-10T01:00:00.000Z	22 \| good	3.588 \| good	15.46 \| good	19.223 \| good	2.895 \| good	21.671 \| good	0.24 \| good
2025-12-10T02:00:00.000Z	26 \| good	2.951 \| good	12.215 \| good	19.52 \| good	2.945 \| good	27.719 \| good	0.306 \| good
2025-12-10T03:00:00.000Z	32 \| good	2.69 \| good	11.55 \| good	19.074 \| good	2.996 \| good	33.767 \| good	0.372 \| good
2025-12-10T04:00:00.000Z	30 \| good	2.541 \| good	10.839 \| good	11.794 \| good	2.626 \| good	31.949 \| good	0.345 \| good
2025-12-10T05:00:00.000Z	28 \| good	2.538 \| good	10.558 \| good	12.473 \| good	2.257 \| good	30.131 \| good	0.318 \| 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

Upland, California

Ontario, California

Montclair, California

Claremont, California

Chino, California

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?