What is the current level of PM10 in Lake St. Louis, Missouri?

Lake St. Louis, Missouri currently has a PM10 concentration of 31.177 μg/m3.

What is the current level of sulfur dioxide (SO2) in Lake St. Louis, Missouri?

The current sulfur dioxide (SO2) concentration in Lake St. Louis, Missouri is 0.511 ppb.

What is the current level of ozone (O3) in Lake St. Louis, Missouri?

Lake St. Louis, Missouri currently has an ozone (O3) concentration of 35.516 ppm.

What is the current level of nitrogen dioxide (NO2) in Lake St. Louis, Missouri?

The current level of nitrogen dioxide (NO2) in Lake St. Louis, Missouri is 3.953 ppb.

Current air quality index in Lake St. Louis, Missouri today

Name: Live air pollution levels in Lake St. Louis, Missouri today
Creator: Ambee

Stay updated with real-time air quality in Lake St. Louis, Missouri 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)

Good

Lake St. Louis, Missouri

Last updated: ... (Local time)

Major air pollutants in Lake St. Louis, Missouri

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

6.05 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

31.18 μg/m³

155

255

425

605+

Ozone (O₃)

35.52 ppb

201

201+

Sulfur Dioxide (SO₂)

0.51 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

3.95 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.28 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

Lake St. Louis, Missouri

Get Live Pollen Counts

Lake St. Louis, Missouri

Scroll To Air Quality Map

Track live Lake St. Louis, Missouri air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-06-03T01:00:00.000Z	60 \| moderate	13.681 \| fine	57.575 \| fine	46.586 \| good	0.803 \| good	4.616 \| good	0.29 \| good
2025-06-03T02:00:00.000Z	58 \| moderate	12.686 \| fine	41.986 \| good	39.746 \| good	0.82 \| good	5.262 \| good	0.247 \| good
2025-06-03T03:00:00.000Z	38 \| good	6.536 \| good	25.487 \| good	39.718 \| good	0.885 \| good	5.208 \| good	0.247 \| good
2025-06-03T04:00:00.000Z	44 \| good	7.705 \| good	25.4 \| good	36.832 \| good	1.267 \| good	4.902 \| good	0.247 \| good
2025-06-03T05:00:00.000Z	49 \| good	8.581 \| good	38.124 \| good	33.509 \| good	0.791 \| good	5.514 \| good	0.241 \| good
2025-06-03T06:00:00.000Z	52 \| moderate	10.258 \| good	48.021 \| good	30.411 \| good	0.952 \| good	5.768 \| good	0.247 \| good
2025-06-03T07:00:00.000Z	49 \| good	8.565 \| good	21.799 \| good	29.889 \| good	0.716 \| good	6.834 \| good	0.254 \| good
2025-06-03T08:00:00.000Z	52 \| moderate	9.909 \| good	34.162 \| good	32.722 \| good	0.871 \| good	6.692 \| good	0.241 \| good
2025-06-03T09:00:00.000Z	45 \| good	8.35 \| good	48.51 \| good	28.201 \| good	0.866 \| good	4.789 \| good	0.206 \| good
2025-06-03T10:00:00.000Z	44 \| good	8.228 \| good	32.723 \| good	24.043 \| good	0.879 \| good	6.908 \| good	0.164 \| good
2025-06-03T11:00:00.000Z	49 \| good	8.652 \| good	37.281 \| good	29.424 \| good	0.944 \| good	10.495 \| good	0.206 \| good
2025-06-03T12:00:00.000Z	49 \| good	8.57 \| good	31.106 \| good	29.103 \| good	0.998 \| good	10.482 \| good	0.213 \| good
2025-06-03T13:00:00.000Z	52 \| moderate	9.768 \| good	28.125 \| good	36.221 \| good	0.596 \| good	10.323 \| good	0.29 \| good
2025-06-03T14:00:00.000Z	50 \| good	9.299 \| good	53.641 \| good	33.519 \| good	0.985 \| good	7.259 \| good	0.255 \| good
2025-06-03T15:00:00.000Z	56 \| moderate	11.8 \| good	43.736 \| good	33.829 \| good	1.065 \| good	5.133 \| good	0.247 \| good
2025-06-03T16:00:00.000Z	60 \| moderate	13.772 \| fine	53.78 \| good	39.102 \| good	0.584 \| good	4.394 \| good	0.241 \| good
2025-06-03T17:00:00.000Z	58 \| moderate	13.466 \| fine	47.011 \| good	41.162 \| good	0.548 \| good	4.364 \| good	0.241 \| good
2025-06-03T18:00:00.000Z	54 \| moderate	11.153 \| good	45.702 \| good	43.632 \| good	0.485 \| good	3.835 \| good	0.241 \| good
2025-06-03T19:00:00.000Z	60 \| moderate	14.467 \| fine	69.872 \| fine	47.261 \| good	0.7 \| good	4.235 \| good	0.241 \| good
2025-06-03T20:00:00.000Z	64 \| moderate	15.83 \| fine	68.028 \| fine	43.807 \| good	0.715 \| good	4.503 \| good	0.233 \| good
2025-06-03T21:00:00.000Z	64 \| moderate	16.121 \| fine	68.76 \| fine	40.522 \| good	0.675 \| good	3.844 \| good	0.29 \| good
2025-06-03T22:00:00.000Z	64 \| moderate	16.393 \| fine	65.292 \| fine	40.611 \| good	0.712 \| good	3.707 \| good	0.239 \| good
2025-06-03T23:00:00.000Z	60 \| moderate	14.22 \| fine	46.264 \| good	40.318 \| good	0.515 \| good	4.543 \| good	0.241 \| good
2025-06-04T00:00:00.000Z	52 \| moderate	10.059 \| good	33.61 \| good	42.17 \| good	0.673 \| good	3.752 \| good	0.247 \| good
2025-06-04T01:00:00.000Z	56 \| moderate	11.937 \| good	39.487 \| good	44.073 \| good	0.654 \| good	3.8 \| good	0.239 \| good
2025-06-04T02:00:00.000Z	56 \| moderate	11.717 \| good	39.432 \| good	44.063 \| good	0.625 \| good	3.936 \| good	0.247 \| good
2025-06-04T03:00:00.000Z	43 \| good	6.356 \| good	28.147 \| good	46.068 \| good	0.337 \| good	1.768 \| good	0.212 \| good
2025-06-04T04:00:00.000Z	54 \| moderate	10.721 \| good	47.415 \| good	39.17 \| good	0.881 \| good	6.596 \| good	0.239 \| good
2025-06-04T05:00:00.000Z	54 \| moderate	10.928 \| good	33.475 \| good	36.052 \| good	0.661 \| good	8.281 \| good	0.288 \| good
2025-06-04T06:00:00.000Z	58 \| moderate	12.018 \| good	69.541 \| fine	40.156 \| good	0.748 \| good	6.229 \| good	0.28 \| good
2025-06-04T07:00:00.000Z	54 \| moderate	8.891 \| good	62.406 \| fine	43.5 \| good	0.736 \| good	6.154 \| good	0.288 \| good
2025-06-04T08:00:00.000Z	41 \| good	5.3 \| good	44.365 \| good	41.816 \| good	0.74 \| good	6.167 \| good	0.281 \| good
2025-06-04T09:00:00.000Z	39 \| good	3.76 \| good	15.465 \| good	41.813 \| good	0.788 \| good	2.877 \| good	0.162 \| good
2025-06-04T10:00:00.000Z	36 \| good	2.667 \| good	10.736 \| good	38.937 \| good	0.54 \| good	4.371 \| good	0.204 \| good
2025-06-04T11:00:00.000Z	36 \| good	2.62 \| good	10.328 \| good	38.659 \| good	0.429 \| good	9.188 \| good	0.218 \| good
2025-06-04T12:00:00.000Z	37 \| good	2.149 \| good	26.773 \| good	40.343 \| good	0.676 \| good	12.315 \| good	0.281 \| good
2025-06-04T13:00:00.000Z	35 \| good	5.311 \| good	23.048 \| good	37.976 \| good	0.22 \| good	1.486 \| good	0.188 \| good
2025-06-04T14:00:00.000Z	33 \| good	3.388 \| good	33.907 \| good	35.996 \| good	0.617 \| good	16.359 \| good	0.362 \| good
2025-06-04T15:00:00.000Z	39 \| good	3.028 \| good	27.384 \| good	42.133 \| good	0.624 \| good	11.956 \| good	0.361 \| good
2025-06-04T16:00:00.000Z	31 \| good	2.893 \| good	25.988 \| good	32.959 \| good	0.472 \| good	10.398 \| good	0.332 \| good
2025-06-04T17:00:00.000Z	58 \| moderate	13.017 \| fine	40.993 \| good	30.056 \| good	0.498 \| good	7.31 \| good	0.323 \| good
2025-06-04T18:00:00.000Z	31 \| good	4.436 \| good	16.371 \| good	33.372 \| good	0.581 \| good	4.685 \| good	0.295 \| good
2025-06-04T19:00:00.000Z	38 \| good	7.237 \| good	21.897 \| good	33.532 \| good	0.567 \| good	5.032 \| good	0.309 \| good
2025-06-04T20:00:00.000Z	60 \| moderate	13.933 \| fine	44.691 \| good	38.819 \| good	0.598 \| good	6.089 \| good	0.315 \| good
2025-06-04T21:00:00.000Z	62 \| moderate	14.88 \| fine	52.19 \| good	34.133 \| good	0.476 \| good	4.79 \| good	0.28 \| good
2025-06-04T22:00:00.000Z	44 \| good	8.131 \| good	31.113 \| good	36.026 \| good	0.548 \| good	6.177 \| good	0.203 \| good
2025-06-04T23:00:00.000Z	33 \| good	6.048 \| good	31.177 \| good	35.516 \| good	0.511 \| good	3.953 \| good	0.28 \| good
2025-06-05T00:00:00.000Z	66 \| moderate	16.691 \| fine	62.065 \| fine	35.714 \| good	0.569 \| good	2.838 \| good	0.263 \| good
2025-06-05T00:00:00.000Z	33 \| good	6.048 \| good	31.177 \| good	35.516 \| good	0.511 \| good	3.953 \| good	0.28 \| good
2025-06-05T01:00:00.000Z	90 \| moderate	29.512 \| fine	127.529 \| fine	37.473 \| good	0.178 \| good	2.881 \| good	0.2 \| good
2025-06-05T02:00:00.000Z	92 \| moderate	30.751 \| fine	133.353 \| fine	36.221 \| good	0.24 \| good	3.529 \| good	0.21 \| good
2025-06-05T03:00:00.000Z	97 \| moderate	34.011 \| fine	147.291 \| fine	35.767 \| good	0.303 \| good	4.176 \| good	0.219 \| good
2025-06-05T04:00:00.000Z	105 \| sensitive	36.887 \| moderate	161.136 \| moderate	36.371 \| good	0.318 \| good	2.909 \| good	0.203 \| good
2025-06-05T05:00:00.000Z	108 \| sensitive	38.264 \| moderate	168.731 \| moderate	36.1 \| good	0.392 \| good	3.237 \| good	0.208 \| good
2025-06-05T06:00:00.000Z	111 \| sensitive	39.47 \| moderate	174.83 \| moderate	36.448 \| good	0.466 \| good	3.565 \| good	0.214 \| good
2025-06-05T07:00:00.000Z	115 \| sensitive	40.992 \| moderate	181.366 \| moderate	33.299 \| good	0.564 \| good	3.209 \| good	0.206 \| good
2025-06-05T08:00:00.000Z	120 \| sensitive	43.194 \| moderate	192.854 \| moderate	29.258 \| good	0.648 \| good	3.448 \| good	0.21 \| good
2025-06-05T09:00:00.000Z	113 \| sensitive	40.339 \| moderate	178.834 \| moderate	25.954 \| good	0.733 \| good	3.687 \| good	0.213 \| good
2025-06-05T10:00:00.000Z	113 \| sensitive	40.359 \| moderate	178.831 \| moderate	25.211 \| good	0.708 \| good	3.084 \| good	0.204 \| good
2025-06-05T11:00:00.000Z	107 \| sensitive	38.277 \| moderate	168.202 \| moderate	23.64 \| good	0.772 \| good	3.303 \| good	0.207 \| good
2025-06-05T12:00:00.000Z	97 \| moderate	33.954 \| fine	146.966 \| fine	28.9 \| good	0.836 \| good	3.522 \| good	0.21 \| good
2025-06-05T13:00:00.000Z	96 \| moderate	33.372 \| fine	143.658 \| fine	32.814 \| good	0.87 \| good	1.39 \| good	0.198 \| good
2025-06-05T14:00:00.000Z	100 \| moderate	35.319 \| fine	154.318 \| fine	33.351 \| good	0.924 \| good	1.585 \| good	0.203 \| good
2025-06-05T15:00:00.000Z	99 \| moderate	34.651 \| fine	149.308 \| fine	36.256 \| good	0.978 \| good	1.78 \| good	0.207 \| good
2025-06-05T16:00:00.000Z	96 \| moderate	32.859 \| fine	142.258 \| fine	41.563 \| good	0.505 \| good	0.695 \| good	0.168 \| good
2025-06-05T17:00:00.000Z	90 \| moderate	29.996 \| fine	130.368 \| fine	44.55 \| good	0.558 \| good	0.798 \| good	0.173 \| good
2025-06-05T18:00:00.000Z	84 \| moderate	26.681 \| fine	116.555 \| fine	45.082 \| good	0.612 \| good	0.901 \| good	0.178 \| good
2025-06-05T19:00:00.000Z	81 \| moderate	25.228 \| fine	110.459 \| fine	43.748 \| good	0.263 \| good	0.665 \| good	0.163 \| good
2025-06-05T20:00:00.000Z	84 \| moderate	27.349 \| fine	118.873 \| fine	42.285 \| good	0.312 \| good	0.768 \| good	0.166 \| good
2025-06-05T21:00:00.000Z	84 \| moderate	27.056 \| fine	118.037 \| fine	41.841 \| good	0.361 \| good	0.871 \| good	0.169 \| good
2025-06-05T22:00:00.000Z	82 \| moderate	26.038 \| fine	113.729 \| fine	42.662 \| good	0.205 \| good	2.043 \| good	0.179 \| good
2025-06-05T23:00:00.000Z	79 \| moderate	23.793 \| fine	103.964 \| fine	44.812 \| good	0.238 \| good	2.131 \| good	0.182 \| good
2025-06-06T00:00:00.000Z	73 \| moderate	21.471 \| fine	94.588 \| fine	47.089 \| good	0.272 \| good	2.219 \| good	0.184 \| good
2025-06-06T01:00:00.000Z	67 \| moderate	17.883 \| fine	78.943 \| fine	39.075 \| good	0.346 \| good	6.2 \| good	0.233 \| good
2025-06-06T02:00:00.000Z	69 \| moderate	18.615 \| fine	82.8 \| fine	33.589 \| good	0.424 \| good	7.493 \| good	0.247 \| good
2025-06-06T03:00:00.000Z	73 \| moderate	21.027 \| fine	92.793 \| fine	28.801 \| good	0.502 \| good	8.785 \| good	0.262 \| good
2025-06-06T04:00:00.000Z	77 \| moderate	22.632 \| fine	99.023 \| fine	26.057 \| good	0.522 \| good	10.1 \| good	0.278 \| good
2025-06-06T05:00:00.000Z	77 \| moderate	22.572 \| fine	98.77 \| fine	21.967 \| good	0.617 \| good	12.526 \| good	0.302 \| good
2025-06-06T06:00:00.000Z	71 \| moderate	19.545 \| fine	85.714 \| fine	21.663 \| good	0.711 \| good	14.952 \| good	0.326 \| good
2025-06-06T07:00:00.000Z	62 \| moderate	14.525 \| fine	64.299 \| fine	24.708 \| good	0.48 \| good	7.674 \| good	0.259 \| good
2025-06-06T08:00:00.000Z	58 \| moderate	13.051 \| fine	58.004 \| fine	23.54 \| good	0.529 \| good	8.824 \| good	0.271 \| good
2025-06-06T09:00:00.000Z	58 \| moderate	12.519 \| fine	55.834 \| fine	21.027 \| good	0.578 \| good	9.973 \| good	0.283 \| good
2025-06-06T10:00:00.000Z	69 \| moderate	19.055 \| fine	83.774 \| fine	17.55 \| good	0.467 \| good	5.081 \| good	0.243 \| good
2025-06-06T11:00:00.000Z	64 \| moderate	15.893 \| fine	71.291 \| fine	18.528 \| good	0.505 \| good	5.461 \| good	0.248 \| good
2025-06-06T12:00:00.000Z	64 \| moderate	16.35 \| fine	73.348 \| fine	19.082 \| good	0.544 \| good	5.84 \| good	0.254 \| good
2025-06-06T13:00:00.000Z	66 \| moderate	16.587 \| fine	73.407 \| fine	23.207 \| good	0.534 \| good	4.427 \| good	0.248 \| good
2025-06-06T14:00:00.000Z	67 \| moderate	18.071 \| fine	80.616 \| fine	30.57 \| good	0.602 \| good	5.208 \| good	0.259 \| good
2025-06-06T15:00:00.000Z	64 \| moderate	16.112 \| fine	70.963 \| fine	36.854 \| good	0.67 \| good	5.99 \| good	0.27 \| good
2025-06-06T16:00:00.000Z	60 \| moderate	14.46 \| fine	64.62 \| fine	42.481 \| good	1.078 \| good	3.347 \| good	0.235 \| good
2025-06-06T17:00:00.000Z	66 \| moderate	16.728 \| fine	74.63 \| fine	46.397 \| good	1.32 \| good	3.786 \| good	0.24 \| good
2025-06-06T18:00:00.000Z	60 \| moderate	13.681 \| fine	61.582 \| fine	51.79 \| good	1.562 \| good	4.225 \| good	0.245 \| good
2025-06-06T19:00:00.000Z	49 \| good	9.297 \| good	41.309 \| good	50.959 \| good	0.726 \| good	1.83 \| good	0.206 \| good
2025-06-06T20:00:00.000Z	48 \| good	8.373 \| good	37.097 \| good	51.845 \| good	0.859 \| good	2.372 \| good	0.216 \| good
2025-06-06T21:00:00.000Z	46 \| good	7.469 \| good	33.03 \| good	50.033 \| good	0.993 \| good	2.914 \| good	0.226 \| good
2025-06-06T22:00:00.000Z	47 \| good	6.851 \| good	30.332 \| good	50.597 \| good	0.318 \| good	1.397 \| good	0.176 \| good
2025-06-06T23:00:00.000Z	47 \| good	7.2 \| good	32.102 \| good	51.325 \| good	0.395 \| good	1.703 \| good	0.185 \| good
2025-06-07T00:00:00.000Z	52 \| moderate	10.175 \| good	10.794 \| good	47.361 \| good	0.47 \| good	2.001 \| good	0.194 \| good

Lake St. Louis

Empower business decisions with accurate air quality data

Real-time air quality map: Monitor AQI near Lake St. Louis, Missouri

0.27ppm

How accurate is Missouri, USA air quality data?

The air quality data for Missouri, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.

Source: Ambee Data Sources

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Check live rankings of places in the USA affected by air pollution.

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Frequently asked questions

How frequently does the air quality data for Lake St. Louis, Missouri get updated?

Air quality updates for Lake St. Louis, Missouri are available every hour.

What time in the past 24 hours saw the poorest air quality in Lake St. Louis, Missouri?

Lake St. Louis, Missouri experienced its worst air quality at 09:00:00, 2025-06-04.

When was air quality in Lake St. Louis, Missouri the best over the past 24 hours?

The best air quality in Lake St. Louis, Missouri was observed at 06:00:00 on 2025-06-04.

What is the air quality in Lake St. Louis, Missouri right now?

The air quality in Lake St. Louis, Missouri right now is Good, with an AQI of 33.

What pollutant is most frequently found in Lake St. Louis, Missouri?

In Lake St. Louis, Missouri, O3 is the most frequently found pollutant.

What can I do if the air quality in Lake St. Louis, Missouri is poor?

When air quality in Lake St. Louis, Missouri is compromised, staying indoors and wearing a mask can reduce health risks.

What is the PM_2.5 concentration in Lake St. Louis, Missouri right now?

Lake St. Louis, Missouri currently has a PM_2.5 concentration of 6.048 μg/m³.

What is the current level of PM₁₀ in Lake St. Louis, Missouri?

Lake St. Louis, Missouri currently has a PM₁₀ concentration of 31.177 μg/m³.

What is the current level of carbon monoxide (CO) in Lake St. Louis, Missouri?

The current carbon monoxide (CO) level in Lake St. Louis, Missouri is 0.28 ppm.

What is the current level of sulfur dioxide (SO₂) in Lake St. Louis, Missouri?

The current sulfur dioxide (SO₂) concentration in Lake St. Louis, Missouri is 0.511 ppb.

What is the current level of ozone (O₃) in Lake St. Louis, Missouri?

Lake St. Louis, Missouri currently has an ozone (O₃) concentration of 35.516 ppm.

What is the current level of nitrogen dioxide (NO₂) in Lake St. Louis, Missouri?

The current level of nitrogen dioxide (NO₂) in Lake St. Louis, Missouri is 3.953 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-06-03T01:00:00.000Z	60 \| moderate	13.681 \| fine	57.575 \| fine	46.586 \| good	0.803 \| good	4.616 \| good	0.29 \| good
2025-06-03T02:00:00.000Z	58 \| moderate	12.686 \| fine	41.986 \| good	39.746 \| good	0.82 \| good	5.262 \| good	0.247 \| good
2025-06-03T03:00:00.000Z	38 \| good	6.536 \| good	25.487 \| good	39.718 \| good	0.885 \| good	5.208 \| good	0.247 \| good
2025-06-03T04:00:00.000Z	44 \| good	7.705 \| good	25.4 \| good	36.832 \| good	1.267 \| good	4.902 \| good	0.247 \| good
2025-06-03T05:00:00.000Z	49 \| good	8.581 \| good	38.124 \| good	33.509 \| good	0.791 \| good	5.514 \| good	0.241 \| good
2025-06-03T06:00:00.000Z	52 \| moderate	10.258 \| good	48.021 \| good	30.411 \| good	0.952 \| good	5.768 \| good	0.247 \| good
2025-06-03T07:00:00.000Z	49 \| good	8.565 \| good	21.799 \| good	29.889 \| good	0.716 \| good	6.834 \| good	0.254 \| good
2025-06-03T08:00:00.000Z	52 \| moderate	9.909 \| good	34.162 \| good	32.722 \| good	0.871 \| good	6.692 \| good	0.241 \| good
2025-06-03T09:00:00.000Z	45 \| good	8.35 \| good	48.51 \| good	28.201 \| good	0.866 \| good	4.789 \| good	0.206 \| good
2025-06-03T10:00:00.000Z	44 \| good	8.228 \| good	32.723 \| good	24.043 \| good	0.879 \| good	6.908 \| good	0.164 \| good
2025-06-03T11:00:00.000Z	49 \| good	8.652 \| good	37.281 \| good	29.424 \| good	0.944 \| good	10.495 \| good	0.206 \| good
2025-06-03T12:00:00.000Z	49 \| good	8.57 \| good	31.106 \| good	29.103 \| good	0.998 \| good	10.482 \| good	0.213 \| good
2025-06-03T13:00:00.000Z	52 \| moderate	9.768 \| good	28.125 \| good	36.221 \| good	0.596 \| good	10.323 \| good	0.29 \| good
2025-06-03T14:00:00.000Z	50 \| good	9.299 \| good	53.641 \| good	33.519 \| good	0.985 \| good	7.259 \| good	0.255 \| good
2025-06-03T15:00:00.000Z	56 \| moderate	11.8 \| good	43.736 \| good	33.829 \| good	1.065 \| good	5.133 \| good	0.247 \| good
2025-06-03T16:00:00.000Z	60 \| moderate	13.772 \| fine	53.78 \| good	39.102 \| good	0.584 \| good	4.394 \| good	0.241 \| good
2025-06-03T17:00:00.000Z	58 \| moderate	13.466 \| fine	47.011 \| good	41.162 \| good	0.548 \| good	4.364 \| good	0.241 \| good
2025-06-03T18:00:00.000Z	54 \| moderate	11.153 \| good	45.702 \| good	43.632 \| good	0.485 \| good	3.835 \| good	0.241 \| good
2025-06-03T19:00:00.000Z	60 \| moderate	14.467 \| fine	69.872 \| fine	47.261 \| good	0.7 \| good	4.235 \| good	0.241 \| good
2025-06-03T20:00:00.000Z	64 \| moderate	15.83 \| fine	68.028 \| fine	43.807 \| good	0.715 \| good	4.503 \| good	0.233 \| good
2025-06-03T21:00:00.000Z	64 \| moderate	16.121 \| fine	68.76 \| fine	40.522 \| good	0.675 \| good	3.844 \| good	0.29 \| good
2025-06-03T22:00:00.000Z	64 \| moderate	16.393 \| fine	65.292 \| fine	40.611 \| good	0.712 \| good	3.707 \| good	0.239 \| good
2025-06-03T23:00:00.000Z	60 \| moderate	14.22 \| fine	46.264 \| good	40.318 \| good	0.515 \| good	4.543 \| good	0.241 \| good
2025-06-04T00:00:00.000Z	52 \| moderate	10.059 \| good	33.61 \| good	42.17 \| good	0.673 \| good	3.752 \| good	0.247 \| good
2025-06-04T01:00:00.000Z	56 \| moderate	11.937 \| good	39.487 \| good	44.073 \| good	0.654 \| good	3.8 \| good	0.239 \| good
2025-06-04T02:00:00.000Z	56 \| moderate	11.717 \| good	39.432 \| good	44.063 \| good	0.625 \| good	3.936 \| good	0.247 \| good
2025-06-04T03:00:00.000Z	43 \| good	6.356 \| good	28.147 \| good	46.068 \| good	0.337 \| good	1.768 \| good	0.212 \| good
2025-06-04T04:00:00.000Z	54 \| moderate	10.721 \| good	47.415 \| good	39.17 \| good	0.881 \| good	6.596 \| good	0.239 \| good
2025-06-04T05:00:00.000Z	54 \| moderate	10.928 \| good	33.475 \| good	36.052 \| good	0.661 \| good	8.281 \| good	0.288 \| good
2025-06-04T06:00:00.000Z	58 \| moderate	12.018 \| good	69.541 \| fine	40.156 \| good	0.748 \| good	6.229 \| good	0.28 \| good
2025-06-04T07:00:00.000Z	54 \| moderate	8.891 \| good	62.406 \| fine	43.5 \| good	0.736 \| good	6.154 \| good	0.288 \| good
2025-06-04T08:00:00.000Z	41 \| good	5.3 \| good	44.365 \| good	41.816 \| good	0.74 \| good	6.167 \| good	0.281 \| good
2025-06-04T09:00:00.000Z	39 \| good	3.76 \| good	15.465 \| good	41.813 \| good	0.788 \| good	2.877 \| good	0.162 \| good
2025-06-04T10:00:00.000Z	36 \| good	2.667 \| good	10.736 \| good	38.937 \| good	0.54 \| good	4.371 \| good	0.204 \| good
2025-06-04T11:00:00.000Z	36 \| good	2.62 \| good	10.328 \| good	38.659 \| good	0.429 \| good	9.188 \| good	0.218 \| good
2025-06-04T12:00:00.000Z	37 \| good	2.149 \| good	26.773 \| good	40.343 \| good	0.676 \| good	12.315 \| good	0.281 \| good
2025-06-04T13:00:00.000Z	35 \| good	5.311 \| good	23.048 \| good	37.976 \| good	0.22 \| good	1.486 \| good	0.188 \| good
2025-06-04T14:00:00.000Z	33 \| good	3.388 \| good	33.907 \| good	35.996 \| good	0.617 \| good	16.359 \| good	0.362 \| good
2025-06-04T15:00:00.000Z	39 \| good	3.028 \| good	27.384 \| good	42.133 \| good	0.624 \| good	11.956 \| good	0.361 \| good
2025-06-04T16:00:00.000Z	31 \| good	2.893 \| good	25.988 \| good	32.959 \| good	0.472 \| good	10.398 \| good	0.332 \| good
2025-06-04T17:00:00.000Z	58 \| moderate	13.017 \| fine	40.993 \| good	30.056 \| good	0.498 \| good	7.31 \| good	0.323 \| good
2025-06-04T18:00:00.000Z	31 \| good	4.436 \| good	16.371 \| good	33.372 \| good	0.581 \| good	4.685 \| good	0.295 \| good
2025-06-04T19:00:00.000Z	38 \| good	7.237 \| good	21.897 \| good	33.532 \| good	0.567 \| good	5.032 \| good	0.309 \| good
2025-06-04T20:00:00.000Z	60 \| moderate	13.933 \| fine	44.691 \| good	38.819 \| good	0.598 \| good	6.089 \| good	0.315 \| good
2025-06-04T21:00:00.000Z	62 \| moderate	14.88 \| fine	52.19 \| good	34.133 \| good	0.476 \| good	4.79 \| good	0.28 \| good
2025-06-04T22:00:00.000Z	44 \| good	8.131 \| good	31.113 \| good	36.026 \| good	0.548 \| good	6.177 \| good	0.203 \| good
2025-06-04T23:00:00.000Z	33 \| good	6.048 \| good	31.177 \| good	35.516 \| good	0.511 \| good	3.953 \| good	0.28 \| good
2025-06-05T00:00:00.000Z	66 \| moderate	16.691 \| fine	62.065 \| fine	35.714 \| good	0.569 \| good	2.838 \| good	0.263 \| good
2025-06-05T00:00:00.000Z	33 \| good	6.048 \| good	31.177 \| good	35.516 \| good	0.511 \| good	3.953 \| good	0.28 \| good
2025-06-05T01:00:00.000Z	90 \| moderate	29.512 \| fine	127.529 \| fine	37.473 \| good	0.178 \| good	2.881 \| good	0.2 \| good
2025-06-05T02:00:00.000Z	92 \| moderate	30.751 \| fine	133.353 \| fine	36.221 \| good	0.24 \| good	3.529 \| good	0.21 \| good
2025-06-05T03:00:00.000Z	97 \| moderate	34.011 \| fine	147.291 \| fine	35.767 \| good	0.303 \| good	4.176 \| good	0.219 \| good
2025-06-05T04:00:00.000Z	105 \| sensitive	36.887 \| moderate	161.136 \| moderate	36.371 \| good	0.318 \| good	2.909 \| good	0.203 \| good
2025-06-05T05:00:00.000Z	108 \| sensitive	38.264 \| moderate	168.731 \| moderate	36.1 \| good	0.392 \| good	3.237 \| good	0.208 \| good
2025-06-05T06:00:00.000Z	111 \| sensitive	39.47 \| moderate	174.83 \| moderate	36.448 \| good	0.466 \| good	3.565 \| good	0.214 \| good
2025-06-05T07:00:00.000Z	115 \| sensitive	40.992 \| moderate	181.366 \| moderate	33.299 \| good	0.564 \| good	3.209 \| good	0.206 \| good
2025-06-05T08:00:00.000Z	120 \| sensitive	43.194 \| moderate	192.854 \| moderate	29.258 \| good	0.648 \| good	3.448 \| good	0.21 \| good
2025-06-05T09:00:00.000Z	113 \| sensitive	40.339 \| moderate	178.834 \| moderate	25.954 \| good	0.733 \| good	3.687 \| good	0.213 \| good
2025-06-05T10:00:00.000Z	113 \| sensitive	40.359 \| moderate	178.831 \| moderate	25.211 \| good	0.708 \| good	3.084 \| good	0.204 \| good
2025-06-05T11:00:00.000Z	107 \| sensitive	38.277 \| moderate	168.202 \| moderate	23.64 \| good	0.772 \| good	3.303 \| good	0.207 \| good
2025-06-05T12:00:00.000Z	97 \| moderate	33.954 \| fine	146.966 \| fine	28.9 \| good	0.836 \| good	3.522 \| good	0.21 \| good
2025-06-05T13:00:00.000Z	96 \| moderate	33.372 \| fine	143.658 \| fine	32.814 \| good	0.87 \| good	1.39 \| good	0.198 \| good
2025-06-05T14:00:00.000Z	100 \| moderate	35.319 \| fine	154.318 \| fine	33.351 \| good	0.924 \| good	1.585 \| good	0.203 \| good
2025-06-05T15:00:00.000Z	99 \| moderate	34.651 \| fine	149.308 \| fine	36.256 \| good	0.978 \| good	1.78 \| good	0.207 \| good
2025-06-05T16:00:00.000Z	96 \| moderate	32.859 \| fine	142.258 \| fine	41.563 \| good	0.505 \| good	0.695 \| good	0.168 \| good
2025-06-05T17:00:00.000Z	90 \| moderate	29.996 \| fine	130.368 \| fine	44.55 \| good	0.558 \| good	0.798 \| good	0.173 \| good
2025-06-05T18:00:00.000Z	84 \| moderate	26.681 \| fine	116.555 \| fine	45.082 \| good	0.612 \| good	0.901 \| good	0.178 \| good
2025-06-05T19:00:00.000Z	81 \| moderate	25.228 \| fine	110.459 \| fine	43.748 \| good	0.263 \| good	0.665 \| good	0.163 \| good
2025-06-05T20:00:00.000Z	84 \| moderate	27.349 \| fine	118.873 \| fine	42.285 \| good	0.312 \| good	0.768 \| good	0.166 \| good
2025-06-05T21:00:00.000Z	84 \| moderate	27.056 \| fine	118.037 \| fine	41.841 \| good	0.361 \| good	0.871 \| good	0.169 \| good
2025-06-05T22:00:00.000Z	82 \| moderate	26.038 \| fine	113.729 \| fine	42.662 \| good	0.205 \| good	2.043 \| good	0.179 \| good
2025-06-05T23:00:00.000Z	79 \| moderate	23.793 \| fine	103.964 \| fine	44.812 \| good	0.238 \| good	2.131 \| good	0.182 \| good
2025-06-06T00:00:00.000Z	73 \| moderate	21.471 \| fine	94.588 \| fine	47.089 \| good	0.272 \| good	2.219 \| good	0.184 \| good
2025-06-06T01:00:00.000Z	67 \| moderate	17.883 \| fine	78.943 \| fine	39.075 \| good	0.346 \| good	6.2 \| good	0.233 \| good
2025-06-06T02:00:00.000Z	69 \| moderate	18.615 \| fine	82.8 \| fine	33.589 \| good	0.424 \| good	7.493 \| good	0.247 \| good
2025-06-06T03:00:00.000Z	73 \| moderate	21.027 \| fine	92.793 \| fine	28.801 \| good	0.502 \| good	8.785 \| good	0.262 \| good
2025-06-06T04:00:00.000Z	77 \| moderate	22.632 \| fine	99.023 \| fine	26.057 \| good	0.522 \| good	10.1 \| good	0.278 \| good
2025-06-06T05:00:00.000Z	77 \| moderate	22.572 \| fine	98.77 \| fine	21.967 \| good	0.617 \| good	12.526 \| good	0.302 \| good
2025-06-06T06:00:00.000Z	71 \| moderate	19.545 \| fine	85.714 \| fine	21.663 \| good	0.711 \| good	14.952 \| good	0.326 \| good
2025-06-06T07:00:00.000Z	62 \| moderate	14.525 \| fine	64.299 \| fine	24.708 \| good	0.48 \| good	7.674 \| good	0.259 \| good
2025-06-06T08:00:00.000Z	58 \| moderate	13.051 \| fine	58.004 \| fine	23.54 \| good	0.529 \| good	8.824 \| good	0.271 \| good
2025-06-06T09:00:00.000Z	58 \| moderate	12.519 \| fine	55.834 \| fine	21.027 \| good	0.578 \| good	9.973 \| good	0.283 \| good
2025-06-06T10:00:00.000Z	69 \| moderate	19.055 \| fine	83.774 \| fine	17.55 \| good	0.467 \| good	5.081 \| good	0.243 \| good
2025-06-06T11:00:00.000Z	64 \| moderate	15.893 \| fine	71.291 \| fine	18.528 \| good	0.505 \| good	5.461 \| good	0.248 \| good
2025-06-06T12:00:00.000Z	64 \| moderate	16.35 \| fine	73.348 \| fine	19.082 \| good	0.544 \| good	5.84 \| good	0.254 \| good
2025-06-06T13:00:00.000Z	66 \| moderate	16.587 \| fine	73.407 \| fine	23.207 \| good	0.534 \| good	4.427 \| good	0.248 \| good
2025-06-06T14:00:00.000Z	67 \| moderate	18.071 \| fine	80.616 \| fine	30.57 \| good	0.602 \| good	5.208 \| good	0.259 \| good
2025-06-06T15:00:00.000Z	64 \| moderate	16.112 \| fine	70.963 \| fine	36.854 \| good	0.67 \| good	5.99 \| good	0.27 \| good
2025-06-06T16:00:00.000Z	60 \| moderate	14.46 \| fine	64.62 \| fine	42.481 \| good	1.078 \| good	3.347 \| good	0.235 \| good
2025-06-06T17:00:00.000Z	66 \| moderate	16.728 \| fine	74.63 \| fine	46.397 \| good	1.32 \| good	3.786 \| good	0.24 \| good
2025-06-06T18:00:00.000Z	60 \| moderate	13.681 \| fine	61.582 \| fine	51.79 \| good	1.562 \| good	4.225 \| good	0.245 \| good
2025-06-06T19:00:00.000Z	49 \| good	9.297 \| good	41.309 \| good	50.959 \| good	0.726 \| good	1.83 \| good	0.206 \| good
2025-06-06T20:00:00.000Z	48 \| good	8.373 \| good	37.097 \| good	51.845 \| good	0.859 \| good	2.372 \| good	0.216 \| good
2025-06-06T21:00:00.000Z	46 \| good	7.469 \| good	33.03 \| good	50.033 \| good	0.993 \| good	2.914 \| good	0.226 \| good
2025-06-06T22:00:00.000Z	47 \| good	6.851 \| good	30.332 \| good	50.597 \| good	0.318 \| good	1.397 \| good	0.176 \| good
2025-06-06T23:00:00.000Z	47 \| good	7.2 \| good	32.102 \| good	51.325 \| good	0.395 \| good	1.703 \| good	0.185 \| good
2025-06-07T00:00:00.000Z	52 \| moderate	10.175 \| good	10.794 \| good	47.361 \| good	0.47 \| good	2.001 \| good	0.194 \| good

Current air quality index in Lake St. Louis, Missouri today

Major air pollutants in Lake St. Louis, Missouri

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live Lake St. Louis, Missouri air quality forecast and history

Empower business decisions with accurate air quality data

Real-time air quality map: Monitor AQI near Lake St. Louis, Missouri

Air quality in nearby cities

Dardenne Prairie, Missouri

Wentzville, Missouri

O'Fallon, Missouri

St. Peters, Missouri

Chesterfield, Missouri

Wildwood, Missouri

How accurate is Missouri, USA air quality data?

Air quality levels in US

Frequently asked questions

How frequently does the air quality data for Lake St. Louis, Missouri get updated?

What time in the past 24 hours saw the poorest air quality in Lake St. Louis, Missouri?

When was air quality in Lake St. Louis, Missouri the best over the past 24 hours?

What is the air quality in Lake St. Louis, Missouri right now?

What pollutant is most frequently found in Lake St. Louis, Missouri?

What can I do if the air quality in Lake St. Louis, Missouri is poor?

What is the PM2.5 concentration in Lake St. Louis, Missouri right now?

What is the current level of PM10 in Lake St. Louis, Missouri?

What is the current level of carbon monoxide (CO) in Lake St. Louis, Missouri?

What is the current level of sulfur dioxide (SO2) in Lake St. Louis, Missouri?

What is the current level of ozone (O3) in Lake St. Louis, Missouri?

What is the current level of nitrogen dioxide (NO2) in Lake St. Louis, Missouri?

Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

What is the PM_2.5 concentration in Lake St. Louis, Missouri right now?

What is the current level of PM₁₀ in Lake St. Louis, Missouri?

What is the current level of sulfur dioxide (SO₂) in Lake St. Louis, Missouri?

What is the current level of ozone (O₃) in Lake St. Louis, Missouri?

What is the current level of nitrogen dioxide (NO₂) in Lake St. Louis, Missouri?