What are the current PM10 levels at St. John, Indiana?

The current PM10 levels in St. John, Indiana are 54.024 μg/m3.

What are the current sulfur dioxide (SO2) levels at St. John, Indiana?

The current sulfur dioxide (SO2) levels in St. John, Indiana are 0.416 ppb.

What are the current ozone (O3) levels at St. John, Indiana?

The current ozone (O3) levels at St. John, Indiana is 34.512 ppm.

What are the current nitrogen dioxide (NO2) levels at St. John, Indiana?

The current nitrogen dioxide (NO2) levels at St. John, Indiana is 4.174 ppb.

Live air quality index in St. John, Indiana today

Name: Live air pollution levels in St. John, Indiana today
Creator: Ambee

Stay updated with real-time air quality in St. John, Indiana 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

St. John, Indiana

Last updated: ... (Local time)

Major air pollutants in St. John, Indiana

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

20.16 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

54.02 μg/m³

155

255

425

605+

Ozone (O₃)

34.51 ppb

201

201+

Sulfur Dioxide (SO₂)

0.42 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

4.17 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.57 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

St. John, Indiana

Get Live Pollen Counts

St. John, Indiana

Scroll To Air Quality Map

Track live St. John, Indiana air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-06-02T18:00:00.000Z	39 \| good	6.242 \| good	26.381 \| good	42.193 \| good	0.698 \| good	4.231 \| good	0.16 \| good
2025-06-02T19:00:00.000Z	42 \| good	6.43 \| good	26.341 \| good	45.365 \| good	0.695 \| good	5.604 \| good	0.16 \| good
2025-06-02T20:00:00.000Z	50 \| good	9.245 \| good	34.017 \| good	53.671 \| good	0.704 \| good	4.448 \| good	0.181 \| good
2025-06-02T21:00:00.000Z	52 \| moderate	10.21 \| good	44.115 \| good	52.998 \| good	0.886 \| good	5.136 \| good	0.181 \| good
2025-06-02T22:00:00.000Z	54 \| moderate	10.683 \| good	48.077 \| good	53.975 \| good	0.737 \| good	1.783 \| good	0.146 \| good
2025-06-02T23:00:00.000Z	61 \| moderate	9.992 \| good	54.446 \| good	57.796 \| fine	0.534 \| good	1.67 \| good	0.199 \| good
2025-06-03T00:00:00.000Z	67 \| moderate	7.773 \| good	40.015 \| good	60.04 \| fine	0.495 \| good	2.699 \| good	0.176 \| good
2025-06-03T01:00:00.000Z	58 \| moderate	10.415 \| good	44.466 \| good	57.188 \| fine	0.47 \| good	4.502 \| good	0.176 \| good
2025-06-03T02:00:00.000Z	62 \| moderate	14.964 \| fine	46.928 \| good	48.225 \| good	0.586 \| good	7.333 \| good	0.195 \| good
2025-06-03T03:00:00.000Z	64 \| moderate	16.415 \| fine	46.155 \| good	48.34 \| good	0.627 \| good	10.139 \| good	0.323 \| good
2025-06-03T04:00:00.000Z	66 \| moderate	17.24 \| fine	73.388 \| fine	44.998 \| good	0.737 \| good	7.768 \| good	0.323 \| good
2025-06-03T05:00:00.000Z	58 \| moderate	12.699 \| fine	38.981 \| good	45.684 \| good	0.658 \| good	9.493 \| good	0.323 \| good
2025-06-03T06:00:00.000Z	62 \| moderate	14.659 \| fine	57.972 \| fine	46.541 \| good	0.708 \| good	10.007 \| good	0.305 \| good
2025-06-03T07:00:00.000Z	62 \| moderate	14.79 \| fine	64.009 \| fine	44.734 \| good	0.65 \| good	7.593 \| good	0.305 \| good
2025-06-03T08:00:00.000Z	62 \| moderate	14.989 \| fine	62.349 \| fine	46.87 \| good	0.755 \| good	8.734 \| good	0.287 \| good
2025-06-03T09:00:00.000Z	56 \| moderate	11.724 \| good	42.744 \| good	43.724 \| good	0.794 \| good	6.354 \| good	0.25 \| good
2025-06-03T10:00:00.000Z	54 \| moderate	11.37 \| good	52.175 \| good	43.372 \| good	0.709 \| good	7.64 \| good	0.25 \| good
2025-06-03T11:00:00.000Z	54 \| moderate	11.445 \| good	51.773 \| good	42.778 \| good	0.774 \| good	11.865 \| good	0.273 \| good
2025-06-03T12:00:00.000Z	54 \| moderate	10.64 \| good	50.858 \| good	39.122 \| good	0.847 \| good	11.814 \| good	0.291 \| good
2025-06-03T13:00:00.000Z	58 \| moderate	13.242 \| fine	59.822 \| fine	38.927 \| good	0.831 \| good	9.468 \| good	0.291 \| good
2025-06-03T14:00:00.000Z	60 \| moderate	14.374 \| fine	45.814 \| good	37.281 \| good	0.829 \| good	8.808 \| good	0.291 \| good
2025-06-03T15:00:00.000Z	56 \| moderate	11.914 \| good	55.357 \| fine	40.888 \| good	0.919 \| good	5.612 \| good	0.213 \| good
2025-06-03T16:00:00.000Z	60 \| moderate	14.122 \| fine	62.359 \| fine	43.802 \| good	0.817 \| good	4.409 \| good	0.215 \| good
2025-06-03T17:00:00.000Z	58 \| moderate	13.474 \| fine	57.858 \| fine	47.318 \| good	0.538 \| good	2.661 \| good	0.234 \| good
2025-06-03T18:00:00.000Z	58 \| moderate	13.182 \| fine	56.097 \| fine	51.099 \| good	0.405 \| good	1.748 \| good	0.234 \| good
2025-06-03T19:00:00.000Z	62 \| moderate	15.016 \| fine	63.129 \| fine	52.087 \| good	0.447 \| good	3.631 \| good	0.215 \| good
2025-06-03T20:00:00.000Z	62 \| moderate	15.044 \| fine	63.327 \| fine	55.661 \| fine	0.381 \| good	1.496 \| good	0.197 \| good
2025-06-03T21:00:00.000Z	64 \| moderate	16.491 \| fine	73.182 \| fine	55.882 \| fine	0.356 \| good	1.615 \| good	0.215 \| good
2025-06-03T22:00:00.000Z	62 \| moderate	14.625 \| fine	67.522 \| fine	56.386 \| fine	0.416 \| good	3.226 \| good	0.252 \| good
2025-06-03T23:00:00.000Z	66 \| moderate	16.792 \| fine	66.849 \| fine	54.965 \| good	0.45 \| good	1.848 \| good	0.294 \| good
2025-06-04T00:00:00.000Z	66 \| moderate	16.844 \| fine	68.729 \| fine	52.988 \| good	0.387 \| good	1.527 \| good	0.22 \| good
2025-06-04T01:00:00.000Z	67 \| moderate	17.912 \| fine	77.411 \| fine	54.469 \| good	0.389 \| good	4.634 \| good	0.202 \| good
2025-06-04T02:00:00.000Z	64 \| moderate	15.676 \| fine	62.7 \| fine	53.753 \| good	0.421 \| good	5.726 \| good	0.241 \| good
2025-06-04T03:00:00.000Z	56 \| moderate	12.248 \| fine	55 \| fine	36.868 \| good	0.992 \| good	2.312 \| good	0.227 \| good
2025-06-04T04:00:00.000Z	73 \| moderate	21.137 \| fine	83.276 \| fine	50.073 \| good	0.422 \| good	3.052 \| good	0.222 \| good
2025-06-04T05:00:00.000Z	75 \| moderate	21.76 \| fine	70.359 \| fine	47.85 \| good	0.478 \| good	3.022 \| good	0.286 \| good
2025-06-04T06:00:00.000Z	62 \| moderate	15.051 \| fine	62.992 \| fine	46.905 \| good	0.486 \| good	2.88 \| good	0.364 \| good
2025-06-04T07:00:00.000Z	70 \| moderate	18.245 \| fine	92.67 \| fine	42.708 \| good	0.386 \| good	2.352 \| good	0.429 \| good
2025-06-04T08:00:00.000Z	68 \| moderate	18.04 \| fine	89.96 \| fine	46.145 \| good	0.41 \| good	3.889 \| good	0.526 \| good
2025-06-04T09:00:00.000Z	68 \| moderate	18.275 \| fine	88.687 \| fine	44.776 \| good	0.433 \| good	1.665 \| good	0.619 \| good
2025-06-04T10:00:00.000Z	62 \| moderate	14.926 \| fine	52.003 \| good	40.378 \| good	0.542 \| good	4.001 \| good	0.619 \| good
2025-06-04T11:00:00.000Z	56 \| moderate	12.386 \| fine	33.996 \| good	39.046 \| good	0.453 \| good	3.666 \| good	0.668 \| good
2025-06-04T12:00:00.000Z	58 \| moderate	13.055 \| fine	45.029 \| good	40.437 \| good	0.329 \| good	4.137 \| good	0.536 \| good
2025-06-04T13:00:00.000Z	49 \| good	8.782 \| good	38.823 \| good	22.211 \| good	0.761 \| good	5.265 \| good	0.243 \| good
2025-06-04T14:00:00.000Z	35 \| good	5.857 \| good	26.272 \| good	37.84 \| good	0.372 \| good	5.33 \| good	0.646 \| good
2025-06-04T15:00:00.000Z	49 \| good	8.804 \| good	43.008 \| good	34.933 \| good	0.332 \| good	5.383 \| good	0.739 \| good
2025-06-04T16:00:00.000Z	49 \| good	4.378 \| good	52.996 \| good	38.435 \| good	0.44 \| good	2.177 \| good	0.462 \| good
2025-06-04T17:00:00.000Z	73 \| moderate	21.486 \| fine	88.431 \| fine	38.568 \| good	0.429 \| good	2.881 \| good	0.559 \| good
2025-06-04T17:00:00.000Z	71 \| moderate	20.158 \| fine	54.024 \| good	34.512 \| good	0.416 \| good	4.174 \| good	0.569 \| good
2025-06-04T18:00:00.000Z	82 \| moderate	26.324 \| fine	115.123 \| fine	40.834 \| good	0.908 \| good	4.943 \| good	0.268 \| good
2025-06-04T19:00:00.000Z	86 \| moderate	28.485 \| fine	123.303 \| fine	43.232 \| good	1.256 \| good	6.537 \| good	0.283 \| good
2025-06-04T20:00:00.000Z	86 \| moderate	28.482 \| fine	123.132 \| fine	43.365 \| good	1.201 \| good	6.193 \| good	0.287 \| good
2025-06-04T21:00:00.000Z	84 \| moderate	27.135 \| fine	118.754 \| fine	43.601 \| good	1.146 \| good	5.849 \| good	0.29 \| good
2025-06-04T22:00:00.000Z	84 \| moderate	27.261 \| fine	118.95 \| fine	42.521 \| good	1.68 \| good	8.903 \| good	0.287 \| good
2025-06-04T23:00:00.000Z	82 \| moderate	25.516 \| fine	110.986 \| fine	44.559 \| good	1.65 \| good	8.563 \| good	0.296 \| good
2025-06-05T00:00:00.000Z	81 \| moderate	25.013 \| fine	108.823 \| fine	44.091 \| good	1.62 \| good	8.222 \| good	0.305 \| good
2025-06-05T01:00:00.000Z	71 \| moderate	20.33 \| fine	89.116 \| fine	44.987 \| good	1.817 \| good	9.62 \| good	0.277 \| good
2025-06-05T02:00:00.000Z	66 \| moderate	17.279 \| fine	77.038 \| fine	44.415 \| good	1.749 \| good	9.014 \| good	0.284 \| good
2025-06-05T03:00:00.000Z	66 \| moderate	17.265 \| fine	76.933 \| fine	42.057 \| good	1.681 \| good	8.408 \| good	0.291 \| good
2025-06-05T04:00:00.000Z	69 \| moderate	18.674 \| fine	83.044 \| fine	39.902 \| good	1.512 \| good	8.065 \| good	0.244 \| good
2025-06-05T05:00:00.000Z	73 \| moderate	21.011 \| fine	92.936 \| fine	36.141 \| good	1.41 \| good	7.457 \| good	0.248 \| good
2025-06-05T06:00:00.000Z	77 \| moderate	23.47 \| fine	102.993 \| fine	33.544 \| good	1.308 \| good	6.848 \| good	0.252 \| good
2025-06-05T07:00:00.000Z	84 \| moderate	26.765 \| fine	116.968 \| fine	30.607 \| good	1.423 \| good	6.313 \| good	0.225 \| good
2025-06-05T08:00:00.000Z	86 \| moderate	27.86 \| fine	121.014 \| fine	30.384 \| good	1.343 \| good	5.811 \| good	0.227 \| good
2025-06-05T09:00:00.000Z	84 \| moderate	26.939 \| fine	117.199 \| fine	28.256 \| good	1.263 \| good	5.309 \| good	0.229 \| good
2025-06-05T10:00:00.000Z	84 \| moderate	26.906 \| fine	117.088 \| fine	26.517 \| good	1.456 \| good	4.979 \| good	0.225 \| good
2025-06-05T11:00:00.000Z	77 \| moderate	23.169 \| fine	101.387 \| fine	25.316 \| good	1.387 \| good	4.665 \| good	0.228 \| good
2025-06-05T12:00:00.000Z	73 \| moderate	20.573 \| fine	91.151 \| fine	31.97 \| good	1.318 \| good	4.35 \| good	0.232 \| good
2025-06-05T13:00:00.000Z	71 \| moderate	20.165 \| fine	88.944 \| fine	36.772 \| good	1.481 \| good	3.291 \| good	0.238 \| good
2025-06-05T14:00:00.000Z	75 \| moderate	22.381 \| fine	98.711 \| fine	41.375 \| good	1.407 \| good	3.18 \| good	0.242 \| good
2025-06-05T15:00:00.000Z	84 \| moderate	27.475 \| fine	118.773 \| fine	47.56 \| good	1.332 \| good	3.069 \| good	0.245 \| good
2025-06-05T16:00:00.000Z	94 \| moderate	31.891 \| fine	138.455 \| fine	51.682 \| good	1.151 \| good	1.681 \| good	0.22 \| good
2025-06-05T17:00:00.000Z	96 \| moderate	33.26 \| fine	143.247 \| fine	53.189 \| good	1.103 \| good	1.675 \| good	0.223 \| good
2025-06-05T18:00:00.000Z	96 \| moderate	32.859 \| fine	143.258 \| fine	54.217 \| good	1.055 \| good	1.669 \| good	0.226 \| good
2025-06-05T19:00:00.000Z	107 \| sensitive	37.624 \| moderate	165.023 \| moderate	54.459 \| good	1.2 \| good	1.98 \| good	0.219 \| good
2025-06-05T20:00:00.000Z	127 \| sensitive	45.551 \| moderate	204.574 \| moderate	54.394 \| good	1.188 \| good	2.011 \| good	0.223 \| good
2025-06-05T21:00:00.000Z	133 \| sensitive	48.319 \| moderate	218.695 \| moderate	53.248 \| good	1.177 \| good	2.042 \| good	0.227 \| good
2025-06-05T22:00:00.000Z	135 \| sensitive	49.278 \| moderate	222.876 \| moderate	51.35 \| good	1.579 \| good	5.043 \| good	0.239 \| good
2025-06-05T23:00:00.000Z	129 \| sensitive	46.617 \| moderate	208.943 \| moderate	46.784 \| good	1.565 \| good	5.036 \| good	0.243 \| good
2025-06-06T00:00:00.000Z	134 \| sensitive	49.064 \| moderate	221.053 \| moderate	41.332 \| good	1.551 \| good	5.028 \| good	0.247 \| good
2025-06-06T01:00:00.000Z	133 \| sensitive	48.477 \| moderate	218.827 \| moderate	38.903 \| good	1.861 \| good	9.007 \| good	0.262 \| good
2025-06-06T02:00:00.000Z	137 \| sensitive	49.691 \| moderate	224.827 \| moderate	38.159 \| good	1.766 \| good	8.415 \| good	0.261 \| good
2025-06-06T03:00:00.000Z	132 \| sensitive	48.18 \| moderate	216.577 \| moderate	34.84 \| good	1.671 \| good	7.823 \| good	0.261 \| good
2025-06-06T04:00:00.000Z	124 \| sensitive	45.072 \| moderate	202.206 \| moderate	30.738 \| good	1.59 \| good	8.716 \| good	0.256 \| good
2025-06-06T05:00:00.000Z	119 \| sensitive	42.68 \| moderate	190.345 \| moderate	24.626 \| good	1.513 \| good	8.133 \| good	0.256 \| good
2025-06-06T06:00:00.000Z	112 \| sensitive	39.528 \| moderate	174.445 \| moderate	22.346 \| good	1.435 \| good	7.55 \| good	0.255 \| good
2025-06-06T07:00:00.000Z	102 \| sensitive	35.973 \| moderate	156.637 \| moderate	21.134 \| good	1.5 \| good	9.599 \| good	0.25 \| good
2025-06-06T08:00:00.000Z	99 \| moderate	34.902 \| fine	150.981 \| fine	21.673 \| good	1.472 \| good	9.143 \| good	0.252 \| good
2025-06-06T09:00:00.000Z	102 \| sensitive	35.757 \| moderate	155.305 \| moderate	23.012 \| good	1.445 \| good	8.687 \| good	0.253 \| good
2025-06-06T10:00:00.000Z	107 \| sensitive	38.161 \| moderate	167.356 \| moderate	23.721 \| good	1.607 \| good	8.634 \| good	0.248 \| good
2025-06-06T11:00:00.000Z	107 \| sensitive	37.881 \| moderate	167.187 \| moderate	18.647 \| good	1.632 \| good	8.298 \| good	0.251 \| good
2025-06-06T12:00:00.000Z	81 \| moderate	25.012 \| fine	108.39 \| fine	22.751 \| good	1.657 \| good	7.962 \| good	0.254 \| good
2025-06-06T13:00:00.000Z	64 \| moderate	16.492 \| fine	73.765 \| fine	28.618 \| good	2.356 \| good	6.339 \| good	0.256 \| good
2025-06-06T14:00:00.000Z	62 \| moderate	14.776 \| fine	65.56 \| fine	36.016 \| good	2.375 \| good	6.067 \| good	0.26 \| good
2025-06-06T15:00:00.000Z	60 \| moderate	13.643 \| fine	61.284 \| fine	42.104 \| good	2.395 \| good	5.794 \| good	0.264 \| good
2025-06-06T16:00:00.000Z	56 \| moderate	12.447 \| fine	56.97 \| fine	45.229 \| good	1.662 \| good	2.437 \| good	0.227 \| good
2025-06-06T17:00:00.000Z	58 \| moderate	12.506 \| fine	57.072 \| fine	47.967 \| good	1.606 \| good	2.354 \| good	0.228 \| good

St. John

Empower business decisions with accurate air quality data

St. John, Indiana air quality map: Real-time AQI near you

0.48ppm

How accurate is Indiana, USA air quality data?

Air quality measurements for Indiana, 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 St. John, Indiana updated?

Air quality data for St. John, Indiana is updated on an hourly basis.

When did St. John, Indiana experience the worst air quality in the last 24 hours?

The worst air quality in St. John, Indiana was recorded at 05:00:00 on 2025-06-04.

When did St. John, Indiana have its best air quality in the last 24 hours?

The best air quality in St. John, Indiana was recorded at 02:00:00 on 2025-06-04.

What is the real-time air quality index for St. John, Indiana?

The real-time air quality index in St. John, Indiana is 71, currently categorized as Moderate.

Which pollutant is found most often in St. John, Indiana?

The most common pollutant in St. John, Indiana is PM2.5.

What can I do if the air quality in St. John, Indiana is poor?

If the air quality in St. John, Indiana is poor, limit outdoor activities and use a mask to safeguard your health.

What are the current PM_2.5 levels in St. John, Indiana?

The measured PM_2.5 levels in St. John, Indiana at present are 20.158 μg/m³.

What are the current PM₁₀ levels at St. John, Indiana?

The current PM₁₀ levels in St. John, Indiana are 54.024 μg/m³.

What are the current carbon monoxide (CO) levels at St. John, Indiana?

The current carbon monoxide (CO) level in St. John, Indiana is 0.569 ppm.

What are the current sulfur dioxide (SO₂) levels at St. John, Indiana?

The current sulfur dioxide (SO₂) levels in St. John, Indiana are 0.416 ppb.

What are the current ozone (O₃) levels at St. John, Indiana?

The current ozone (O₃) levels at St. John, Indiana is 34.512 ppm.

What are the current nitrogen dioxide (NO₂) levels at St. John, Indiana?

The current nitrogen dioxide (NO₂) levels at St. John, Indiana is 4.174 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-06-02T18:00:00.000Z	39 \| good	6.242 \| good	26.381 \| good	42.193 \| good	0.698 \| good	4.231 \| good	0.16 \| good
2025-06-02T19:00:00.000Z	42 \| good	6.43 \| good	26.341 \| good	45.365 \| good	0.695 \| good	5.604 \| good	0.16 \| good
2025-06-02T20:00:00.000Z	50 \| good	9.245 \| good	34.017 \| good	53.671 \| good	0.704 \| good	4.448 \| good	0.181 \| good
2025-06-02T21:00:00.000Z	52 \| moderate	10.21 \| good	44.115 \| good	52.998 \| good	0.886 \| good	5.136 \| good	0.181 \| good
2025-06-02T22:00:00.000Z	54 \| moderate	10.683 \| good	48.077 \| good	53.975 \| good	0.737 \| good	1.783 \| good	0.146 \| good
2025-06-02T23:00:00.000Z	61 \| moderate	9.992 \| good	54.446 \| good	57.796 \| fine	0.534 \| good	1.67 \| good	0.199 \| good
2025-06-03T00:00:00.000Z	67 \| moderate	7.773 \| good	40.015 \| good	60.04 \| fine	0.495 \| good	2.699 \| good	0.176 \| good
2025-06-03T01:00:00.000Z	58 \| moderate	10.415 \| good	44.466 \| good	57.188 \| fine	0.47 \| good	4.502 \| good	0.176 \| good
2025-06-03T02:00:00.000Z	62 \| moderate	14.964 \| fine	46.928 \| good	48.225 \| good	0.586 \| good	7.333 \| good	0.195 \| good
2025-06-03T03:00:00.000Z	64 \| moderate	16.415 \| fine	46.155 \| good	48.34 \| good	0.627 \| good	10.139 \| good	0.323 \| good
2025-06-03T04:00:00.000Z	66 \| moderate	17.24 \| fine	73.388 \| fine	44.998 \| good	0.737 \| good	7.768 \| good	0.323 \| good
2025-06-03T05:00:00.000Z	58 \| moderate	12.699 \| fine	38.981 \| good	45.684 \| good	0.658 \| good	9.493 \| good	0.323 \| good
2025-06-03T06:00:00.000Z	62 \| moderate	14.659 \| fine	57.972 \| fine	46.541 \| good	0.708 \| good	10.007 \| good	0.305 \| good
2025-06-03T07:00:00.000Z	62 \| moderate	14.79 \| fine	64.009 \| fine	44.734 \| good	0.65 \| good	7.593 \| good	0.305 \| good
2025-06-03T08:00:00.000Z	62 \| moderate	14.989 \| fine	62.349 \| fine	46.87 \| good	0.755 \| good	8.734 \| good	0.287 \| good
2025-06-03T09:00:00.000Z	56 \| moderate	11.724 \| good	42.744 \| good	43.724 \| good	0.794 \| good	6.354 \| good	0.25 \| good
2025-06-03T10:00:00.000Z	54 \| moderate	11.37 \| good	52.175 \| good	43.372 \| good	0.709 \| good	7.64 \| good	0.25 \| good
2025-06-03T11:00:00.000Z	54 \| moderate	11.445 \| good	51.773 \| good	42.778 \| good	0.774 \| good	11.865 \| good	0.273 \| good
2025-06-03T12:00:00.000Z	54 \| moderate	10.64 \| good	50.858 \| good	39.122 \| good	0.847 \| good	11.814 \| good	0.291 \| good
2025-06-03T13:00:00.000Z	58 \| moderate	13.242 \| fine	59.822 \| fine	38.927 \| good	0.831 \| good	9.468 \| good	0.291 \| good
2025-06-03T14:00:00.000Z	60 \| moderate	14.374 \| fine	45.814 \| good	37.281 \| good	0.829 \| good	8.808 \| good	0.291 \| good
2025-06-03T15:00:00.000Z	56 \| moderate	11.914 \| good	55.357 \| fine	40.888 \| good	0.919 \| good	5.612 \| good	0.213 \| good
2025-06-03T16:00:00.000Z	60 \| moderate	14.122 \| fine	62.359 \| fine	43.802 \| good	0.817 \| good	4.409 \| good	0.215 \| good
2025-06-03T17:00:00.000Z	58 \| moderate	13.474 \| fine	57.858 \| fine	47.318 \| good	0.538 \| good	2.661 \| good	0.234 \| good
2025-06-03T18:00:00.000Z	58 \| moderate	13.182 \| fine	56.097 \| fine	51.099 \| good	0.405 \| good	1.748 \| good	0.234 \| good
2025-06-03T19:00:00.000Z	62 \| moderate	15.016 \| fine	63.129 \| fine	52.087 \| good	0.447 \| good	3.631 \| good	0.215 \| good
2025-06-03T20:00:00.000Z	62 \| moderate	15.044 \| fine	63.327 \| fine	55.661 \| fine	0.381 \| good	1.496 \| good	0.197 \| good
2025-06-03T21:00:00.000Z	64 \| moderate	16.491 \| fine	73.182 \| fine	55.882 \| fine	0.356 \| good	1.615 \| good	0.215 \| good
2025-06-03T22:00:00.000Z	62 \| moderate	14.625 \| fine	67.522 \| fine	56.386 \| fine	0.416 \| good	3.226 \| good	0.252 \| good
2025-06-03T23:00:00.000Z	66 \| moderate	16.792 \| fine	66.849 \| fine	54.965 \| good	0.45 \| good	1.848 \| good	0.294 \| good
2025-06-04T00:00:00.000Z	66 \| moderate	16.844 \| fine	68.729 \| fine	52.988 \| good	0.387 \| good	1.527 \| good	0.22 \| good
2025-06-04T01:00:00.000Z	67 \| moderate	17.912 \| fine	77.411 \| fine	54.469 \| good	0.389 \| good	4.634 \| good	0.202 \| good
2025-06-04T02:00:00.000Z	64 \| moderate	15.676 \| fine	62.7 \| fine	53.753 \| good	0.421 \| good	5.726 \| good	0.241 \| good
2025-06-04T03:00:00.000Z	56 \| moderate	12.248 \| fine	55 \| fine	36.868 \| good	0.992 \| good	2.312 \| good	0.227 \| good
2025-06-04T04:00:00.000Z	73 \| moderate	21.137 \| fine	83.276 \| fine	50.073 \| good	0.422 \| good	3.052 \| good	0.222 \| good
2025-06-04T05:00:00.000Z	75 \| moderate	21.76 \| fine	70.359 \| fine	47.85 \| good	0.478 \| good	3.022 \| good	0.286 \| good
2025-06-04T06:00:00.000Z	62 \| moderate	15.051 \| fine	62.992 \| fine	46.905 \| good	0.486 \| good	2.88 \| good	0.364 \| good
2025-06-04T07:00:00.000Z	70 \| moderate	18.245 \| fine	92.67 \| fine	42.708 \| good	0.386 \| good	2.352 \| good	0.429 \| good
2025-06-04T08:00:00.000Z	68 \| moderate	18.04 \| fine	89.96 \| fine	46.145 \| good	0.41 \| good	3.889 \| good	0.526 \| good
2025-06-04T09:00:00.000Z	68 \| moderate	18.275 \| fine	88.687 \| fine	44.776 \| good	0.433 \| good	1.665 \| good	0.619 \| good
2025-06-04T10:00:00.000Z	62 \| moderate	14.926 \| fine	52.003 \| good	40.378 \| good	0.542 \| good	4.001 \| good	0.619 \| good
2025-06-04T11:00:00.000Z	56 \| moderate	12.386 \| fine	33.996 \| good	39.046 \| good	0.453 \| good	3.666 \| good	0.668 \| good
2025-06-04T12:00:00.000Z	58 \| moderate	13.055 \| fine	45.029 \| good	40.437 \| good	0.329 \| good	4.137 \| good	0.536 \| good
2025-06-04T13:00:00.000Z	49 \| good	8.782 \| good	38.823 \| good	22.211 \| good	0.761 \| good	5.265 \| good	0.243 \| good
2025-06-04T14:00:00.000Z	35 \| good	5.857 \| good	26.272 \| good	37.84 \| good	0.372 \| good	5.33 \| good	0.646 \| good
2025-06-04T15:00:00.000Z	49 \| good	8.804 \| good	43.008 \| good	34.933 \| good	0.332 \| good	5.383 \| good	0.739 \| good
2025-06-04T16:00:00.000Z	49 \| good	4.378 \| good	52.996 \| good	38.435 \| good	0.44 \| good	2.177 \| good	0.462 \| good
2025-06-04T17:00:00.000Z	73 \| moderate	21.486 \| fine	88.431 \| fine	38.568 \| good	0.429 \| good	2.881 \| good	0.559 \| good
2025-06-04T17:00:00.000Z	71 \| moderate	20.158 \| fine	54.024 \| good	34.512 \| good	0.416 \| good	4.174 \| good	0.569 \| good
2025-06-04T18:00:00.000Z	82 \| moderate	26.324 \| fine	115.123 \| fine	40.834 \| good	0.908 \| good	4.943 \| good	0.268 \| good
2025-06-04T19:00:00.000Z	86 \| moderate	28.485 \| fine	123.303 \| fine	43.232 \| good	1.256 \| good	6.537 \| good	0.283 \| good
2025-06-04T20:00:00.000Z	86 \| moderate	28.482 \| fine	123.132 \| fine	43.365 \| good	1.201 \| good	6.193 \| good	0.287 \| good
2025-06-04T21:00:00.000Z	84 \| moderate	27.135 \| fine	118.754 \| fine	43.601 \| good	1.146 \| good	5.849 \| good	0.29 \| good
2025-06-04T22:00:00.000Z	84 \| moderate	27.261 \| fine	118.95 \| fine	42.521 \| good	1.68 \| good	8.903 \| good	0.287 \| good
2025-06-04T23:00:00.000Z	82 \| moderate	25.516 \| fine	110.986 \| fine	44.559 \| good	1.65 \| good	8.563 \| good	0.296 \| good
2025-06-05T00:00:00.000Z	81 \| moderate	25.013 \| fine	108.823 \| fine	44.091 \| good	1.62 \| good	8.222 \| good	0.305 \| good
2025-06-05T01:00:00.000Z	71 \| moderate	20.33 \| fine	89.116 \| fine	44.987 \| good	1.817 \| good	9.62 \| good	0.277 \| good
2025-06-05T02:00:00.000Z	66 \| moderate	17.279 \| fine	77.038 \| fine	44.415 \| good	1.749 \| good	9.014 \| good	0.284 \| good
2025-06-05T03:00:00.000Z	66 \| moderate	17.265 \| fine	76.933 \| fine	42.057 \| good	1.681 \| good	8.408 \| good	0.291 \| good
2025-06-05T04:00:00.000Z	69 \| moderate	18.674 \| fine	83.044 \| fine	39.902 \| good	1.512 \| good	8.065 \| good	0.244 \| good
2025-06-05T05:00:00.000Z	73 \| moderate	21.011 \| fine	92.936 \| fine	36.141 \| good	1.41 \| good	7.457 \| good	0.248 \| good
2025-06-05T06:00:00.000Z	77 \| moderate	23.47 \| fine	102.993 \| fine	33.544 \| good	1.308 \| good	6.848 \| good	0.252 \| good
2025-06-05T07:00:00.000Z	84 \| moderate	26.765 \| fine	116.968 \| fine	30.607 \| good	1.423 \| good	6.313 \| good	0.225 \| good
2025-06-05T08:00:00.000Z	86 \| moderate	27.86 \| fine	121.014 \| fine	30.384 \| good	1.343 \| good	5.811 \| good	0.227 \| good
2025-06-05T09:00:00.000Z	84 \| moderate	26.939 \| fine	117.199 \| fine	28.256 \| good	1.263 \| good	5.309 \| good	0.229 \| good
2025-06-05T10:00:00.000Z	84 \| moderate	26.906 \| fine	117.088 \| fine	26.517 \| good	1.456 \| good	4.979 \| good	0.225 \| good
2025-06-05T11:00:00.000Z	77 \| moderate	23.169 \| fine	101.387 \| fine	25.316 \| good	1.387 \| good	4.665 \| good	0.228 \| good
2025-06-05T12:00:00.000Z	73 \| moderate	20.573 \| fine	91.151 \| fine	31.97 \| good	1.318 \| good	4.35 \| good	0.232 \| good
2025-06-05T13:00:00.000Z	71 \| moderate	20.165 \| fine	88.944 \| fine	36.772 \| good	1.481 \| good	3.291 \| good	0.238 \| good
2025-06-05T14:00:00.000Z	75 \| moderate	22.381 \| fine	98.711 \| fine	41.375 \| good	1.407 \| good	3.18 \| good	0.242 \| good
2025-06-05T15:00:00.000Z	84 \| moderate	27.475 \| fine	118.773 \| fine	47.56 \| good	1.332 \| good	3.069 \| good	0.245 \| good
2025-06-05T16:00:00.000Z	94 \| moderate	31.891 \| fine	138.455 \| fine	51.682 \| good	1.151 \| good	1.681 \| good	0.22 \| good
2025-06-05T17:00:00.000Z	96 \| moderate	33.26 \| fine	143.247 \| fine	53.189 \| good	1.103 \| good	1.675 \| good	0.223 \| good
2025-06-05T18:00:00.000Z	96 \| moderate	32.859 \| fine	143.258 \| fine	54.217 \| good	1.055 \| good	1.669 \| good	0.226 \| good
2025-06-05T19:00:00.000Z	107 \| sensitive	37.624 \| moderate	165.023 \| moderate	54.459 \| good	1.2 \| good	1.98 \| good	0.219 \| good
2025-06-05T20:00:00.000Z	127 \| sensitive	45.551 \| moderate	204.574 \| moderate	54.394 \| good	1.188 \| good	2.011 \| good	0.223 \| good
2025-06-05T21:00:00.000Z	133 \| sensitive	48.319 \| moderate	218.695 \| moderate	53.248 \| good	1.177 \| good	2.042 \| good	0.227 \| good
2025-06-05T22:00:00.000Z	135 \| sensitive	49.278 \| moderate	222.876 \| moderate	51.35 \| good	1.579 \| good	5.043 \| good	0.239 \| good
2025-06-05T23:00:00.000Z	129 \| sensitive	46.617 \| moderate	208.943 \| moderate	46.784 \| good	1.565 \| good	5.036 \| good	0.243 \| good
2025-06-06T00:00:00.000Z	134 \| sensitive	49.064 \| moderate	221.053 \| moderate	41.332 \| good	1.551 \| good	5.028 \| good	0.247 \| good
2025-06-06T01:00:00.000Z	133 \| sensitive	48.477 \| moderate	218.827 \| moderate	38.903 \| good	1.861 \| good	9.007 \| good	0.262 \| good
2025-06-06T02:00:00.000Z	137 \| sensitive	49.691 \| moderate	224.827 \| moderate	38.159 \| good	1.766 \| good	8.415 \| good	0.261 \| good
2025-06-06T03:00:00.000Z	132 \| sensitive	48.18 \| moderate	216.577 \| moderate	34.84 \| good	1.671 \| good	7.823 \| good	0.261 \| good
2025-06-06T04:00:00.000Z	124 \| sensitive	45.072 \| moderate	202.206 \| moderate	30.738 \| good	1.59 \| good	8.716 \| good	0.256 \| good
2025-06-06T05:00:00.000Z	119 \| sensitive	42.68 \| moderate	190.345 \| moderate	24.626 \| good	1.513 \| good	8.133 \| good	0.256 \| good
2025-06-06T06:00:00.000Z	112 \| sensitive	39.528 \| moderate	174.445 \| moderate	22.346 \| good	1.435 \| good	7.55 \| good	0.255 \| good
2025-06-06T07:00:00.000Z	102 \| sensitive	35.973 \| moderate	156.637 \| moderate	21.134 \| good	1.5 \| good	9.599 \| good	0.25 \| good
2025-06-06T08:00:00.000Z	99 \| moderate	34.902 \| fine	150.981 \| fine	21.673 \| good	1.472 \| good	9.143 \| good	0.252 \| good
2025-06-06T09:00:00.000Z	102 \| sensitive	35.757 \| moderate	155.305 \| moderate	23.012 \| good	1.445 \| good	8.687 \| good	0.253 \| good
2025-06-06T10:00:00.000Z	107 \| sensitive	38.161 \| moderate	167.356 \| moderate	23.721 \| good	1.607 \| good	8.634 \| good	0.248 \| good
2025-06-06T11:00:00.000Z	107 \| sensitive	37.881 \| moderate	167.187 \| moderate	18.647 \| good	1.632 \| good	8.298 \| good	0.251 \| good
2025-06-06T12:00:00.000Z	81 \| moderate	25.012 \| fine	108.39 \| fine	22.751 \| good	1.657 \| good	7.962 \| good	0.254 \| good
2025-06-06T13:00:00.000Z	64 \| moderate	16.492 \| fine	73.765 \| fine	28.618 \| good	2.356 \| good	6.339 \| good	0.256 \| good
2025-06-06T14:00:00.000Z	62 \| moderate	14.776 \| fine	65.56 \| fine	36.016 \| good	2.375 \| good	6.067 \| good	0.26 \| good
2025-06-06T15:00:00.000Z	60 \| moderate	13.643 \| fine	61.284 \| fine	42.104 \| good	2.395 \| good	5.794 \| good	0.264 \| good
2025-06-06T16:00:00.000Z	56 \| moderate	12.447 \| fine	56.97 \| fine	45.229 \| good	1.662 \| good	2.437 \| good	0.227 \| good
2025-06-06T17:00:00.000Z	58 \| moderate	12.506 \| fine	57.072 \| fine	47.967 \| good	1.606 \| good	2.354 \| good	0.228 \| good

Live air quality index in St. John, Indiana today

Major air pollutants in St. John, Indiana

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live St. John, Indiana air quality forecast and history

Empower business decisions with accurate air quality data

St. John, Indiana air quality map: Real-time AQI near you

Air quality in nearby cities

Schererville, Indiana

Dyer, Indiana

Crown Point, Indiana

Griffith, Indiana

Cedar Lake, Indiana

Highland Town, Indiana

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Air quality levels in US

Frequently asked questions

How frequently is the air quality data for St. John, Indiana updated?

When did St. John, Indiana experience the worst air quality in the last 24 hours?

When did St. John, Indiana have its best air quality in the last 24 hours?

What is the real-time air quality index for St. John, Indiana?

Which pollutant is found most often in St. John, Indiana?

What can I do if the air quality in St. John, Indiana is poor?

What are the current PM2.5 levels in St. John, Indiana?

What are the current PM10 levels at St. John, Indiana?

What are the current carbon monoxide (CO) levels at St. John, Indiana?

What are the current sulfur dioxide (SO2) levels at St. John, Indiana?

What are the current ozone (O3) levels at St. John, Indiana?

What are the current nitrogen dioxide (NO2) levels at St. John, Indiana?

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 St. John, Indiana?

What are the current PM₁₀ levels at St. John, Indiana?

What are the current sulfur dioxide (SO₂) levels at St. John, Indiana?

What are the current ozone (O₃) levels at St. John, Indiana?

What are the current nitrogen dioxide (NO₂) levels at St. John, Indiana?