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

Lake St. Louis, Missouri currently has a PM10 concentration of 46.764 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 0.662 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 26.486 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 3.111 ppb.

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

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

Lake St. Louis, Missouri currently has a PM2.5 concentration of 11.318 μg/m3.

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)

Moderate

Lake St. Louis, Missouri

Last updated: ... (Local time)

Common air pollutants in Lake St. Louis, Missouri

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

11.41 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

48.83 μg/m³

155

255

425

605+

Ozone (O₃)

23.68 ppb

201

201+

Sulfur Dioxide (SO₂)

0.58 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

3.04 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.20 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Looks like we don't have this data available right now

Please contact us for custom requests

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
2026-03-09T05:00:00.000Z	26 \| good	4.281 \| good	20.635 \| good	27.791 \| good	0.28 \| good	5.203 \| good	0.198 \| good
2026-03-09T06:00:00.000Z	24 \| good	4.252 \| good	15.865 \| good	26.331 \| good	0.232 \| good	4.526 \| good	0.198 \| good
2026-03-09T07:00:00.000Z	23 \| good	4.186 \| good	15.743 \| good	24.503 \| good	0.232 \| good	3.994 \| good	0.159 \| good
2026-03-09T08:00:00.000Z	25 \| good	4.218 \| good	15.448 \| good	26.658 \| good	0.5 \| good	3.77 \| good	0.184 \| good
2026-03-09T09:00:00.000Z	23 \| good	4.466 \| good	18.062 \| good	25.089 \| good	0.288 \| good	3.907 \| good	0.17 \| good
2026-03-09T10:00:00.000Z	24 \| good	4.209 \| good	14.086 \| good	26.245 \| good	0.272 \| good	4.491 \| good	0.208 \| good
2026-03-09T11:00:00.000Z	25 \| good	3.944 \| good	18.401 \| good	26.629 \| good	0.271 \| good	4.996 \| good	0.214 \| good
2026-03-09T12:00:00.000Z	22 \| good	4.491 \| good	17.152 \| good	22.03 \| good	0.55 \| good	4.994 \| good	0.23 \| good
2026-03-09T13:00:00.000Z	27 \| good	4.815 \| good	22.758 \| good	23.315 \| good	0.55 \| good	5.746 \| good	0.191 \| good
2026-03-09T14:00:00.000Z	22 \| good	3.64 \| good	11.872 \| good	22.4 \| good	0.549 \| good	8.217 \| good	0.292 \| good
2026-03-09T15:00:00.000Z	27 \| good	5.066 \| good	19 \| good	25.078 \| good	0.588 \| good	5.059 \| good	0.241 \| good
2026-03-09T16:00:00.000Z	33 \| good	6.258 \| good	20.234 \| good	26.456 \| good	0.659 \| good	3.746 \| good	0.213 \| good
2026-03-09T17:00:00.000Z	38 \| good	7.166 \| good	20.109 \| good	28.402 \| good	0.886 \| good	3.487 \| good	0.205 \| good
2026-03-09T18:00:00.000Z	38 \| good	6.971 \| good	30.961 \| good	28.971 \| good	1.414 \| good	4.207 \| good	0.205 \| good
2026-03-09T19:00:00.000Z	44 \| good	8.099 \| good	33.693 \| good	33.437 \| good	0.882 \| good	3.957 \| good	0.213 \| good
2026-03-09T20:00:00.000Z	52 \| moderate	9.813 \| good	43.989 \| good	29.728 \| good	0.847 \| good	4.133 \| good	0.213 \| good
2026-03-09T21:00:00.000Z	44 \| good	8.241 \| good	34.751 \| good	34.583 \| good	0.817 \| good	4.278 \| good	0.219 \| good
2026-03-09T22:00:00.000Z	49 \| good	8.776 \| good	27.28 \| good	31.383 \| good	1.119 \| good	3.429 \| good	0.213 \| good
2026-03-09T23:00:00.000Z	54 \| moderate	11.001 \| good	44.166 \| good	31.797 \| good	1.315 \| good	3.337 \| good	0.255 \| good
2026-03-10T00:00:00.000Z	49 \| good	9.29 \| good	37.855 \| good	30.679 \| good	0.932 \| good	3.503 \| good	0.255 \| good
2026-03-10T01:00:00.000Z	49 \| good	9.095 \| good	35.59 \| good	27.66 \| good	0.858 \| good	3.316 \| good	0.219 \| good
2026-03-10T02:00:00.000Z	49 \| good	8.987 \| good	32.103 \| good	23.522 \| good	0.753 \| good	3.63 \| good	0.213 \| good
2026-03-10T03:00:00.000Z	49 \| good	9.397 \| good	42.108 \| good	26.974 \| good	0.278 \| good	2.923 \| good	0.142 \| good
2026-03-10T04:00:00.000Z	38 \| good	6.705 \| good	30.139 \| good	21.063 \| good	0.71 \| good	4.114 \| good	0.244 \| good
2026-03-10T05:00:00.000Z	38 \| good	6.732 \| good	22.384 \| good	25.166 \| good	0.761 \| good	4.469 \| good	0.253 \| good
2026-03-10T06:00:00.000Z	27 \| good	4.755 \| good	18.497 \| good	22.15 \| good	0.676 \| good	3.694 \| good	0.164 \| good
2026-03-10T07:00:00.000Z	27 \| good	4.564 \| good	15.658 \| good	26.64 \| good	0.641 \| good	3.79 \| good	0.164 \| good
2026-03-10T08:00:00.000Z	27 \| good	5.212 \| good	24.789 \| good	21.635 \| good	0.688 \| good	4.09 \| good	0.164 \| good
2026-03-10T09:00:00.000Z	22 \| good	4.174 \| good	15.65 \| good	18.999 \| good	0.805 \| good	4.904 \| good	0.2 \| good
2026-03-10T10:00:00.000Z	27 \| good	4.556 \| good	19.41 \| good	20.057 \| good	0.664 \| good	6.814 \| good	0.207 \| good
2026-03-10T11:00:00.000Z	27 \| good	4.847 \| good	20.138 \| good	18.494 \| good	0.659 \| good	6.246 \| good	0.213 \| good
2026-03-10T12:00:00.000Z	33 \| good	6.141 \| good	20.312 \| good	17.689 \| good	0.476 \| good	8.423 \| good	0.298 \| good
2026-03-10T13:00:00.000Z	44 \| good	7.834 \| good	34.943 \| good	13.634 \| good	0.608 \| good	8.691 \| good	0.341 \| good
2026-03-10T14:00:00.000Z	52 \| moderate	9.824 \| good	33.955 \| good	14.752 \| good	0.511 \| good	7.123 \| good	0.306 \| good
2026-03-10T15:00:00.000Z	38 \| good	6.758 \| good	24.554 \| good	18.847 \| good	0.495 \| good	4.281 \| good	0.256 \| good
2026-03-10T16:00:00.000Z	52 \| moderate	9.824 \| good	40.034 \| good	20.584 \| good	0.655 \| good	3.825 \| good	0.207 \| good
2026-03-10T17:00:00.000Z	52 \| moderate	10.264 \| good	35.366 \| good	22.002 \| good	0.623 \| good	3.281 \| good	0.17 \| good
2026-03-10T18:00:00.000Z	52 \| moderate	9.997 \| good	37.985 \| good	22.598 \| good	0.709 \| good	3.292 \| good	0.164 \| good
2026-03-10T19:00:00.000Z	54 \| moderate	11.114 \| good	47.279 \| good	28.023 \| good	0.997 \| good	3.415 \| good	0.213 \| good
2026-03-10T20:00:00.000Z	54 \| moderate	10.846 \| good	44.354 \| good	31.202 \| good	0.721 \| good	3.475 \| good	0.207 \| good
2026-03-10T21:00:00.000Z	56 \| moderate	10.542 \| good	66.131 \| fine	31.243 \| good	0.742 \| good	3.823 \| good	0.213 \| good
2026-03-10T22:00:00.000Z	56 \| moderate	11.885 \| good	45.043 \| good	31.534 \| good	0.633 \| good	3.846 \| good	0.213 \| good
2026-03-10T23:00:00.000Z	52 \| moderate	10.446 \| good	39.072 \| good	31.663 \| good	0.709 \| good	3.13 \| good	0.271 \| good
2026-03-11T00:00:00.000Z	49 \| good	9.263 \| good	43.869 \| good	30.746 \| good	0.668 \| good	2.752 \| good	0.2 \| good
2026-03-11T01:00:00.000Z	54 \| moderate	11.318 \| good	46.764 \| good	26.486 \| good	0.662 \| good	3.111 \| good	0.243 \| good
2026-03-11T02:00:00.000Z	54 \| moderate	11.38 \| good	52.01 \| good	24.674 \| good	0.61 \| good	3.365 \| good	0.235 \| good
2026-03-11T03:00:00.000Z	54 \| moderate	11.412 \| good	48.833 \| good	23.681 \| good	0.582 \| good	3.039 \| good	0.2 \| good
2026-03-11T04:00:00.000Z	54 \| moderate	11.412 \| good	48.833 \| good	23.681 \| good	0.582 \| good	3.039 \| good	0.2 \| good
2026-03-11T03:00:00.000Z	49 \| good	8.704 \| good	38.097 \| good	19.703 \| good	0.202 \| good	1.837 \| good	0.12 \| good
2026-03-11T04:00:00.000Z	44 \| good	8.224 \| good	36.125 \| good	19.18 \| good	0.185 \| good	1.662 \| good	0.117 \| good
2026-03-11T05:00:00.000Z	44 \| good	8.044 \| good	35.123 \| good	17.211 \| good	0.168 \| good	1.487 \| good	0.113 \| good
2026-03-11T06:00:00.000Z	33 \| good	6.36 \| good	28.123 \| good	17.465 \| good	0.152 \| good	1.312 \| good	0.11 \| good
2026-03-11T07:00:00.000Z	33 \| good	6.167 \| good	27.168 \| good	27.79 \| good	0.152 \| good	1.353 \| good	0.11 \| good
2026-03-11T08:00:00.000Z	26 \| good	3.49 \| good	15.141 \| good	28.334 \| good	0.153 \| good	1.394 \| good	0.11 \| good
2026-03-11T09:00:00.000Z	24 \| good	2.312 \| good	9.855 \| good	26.106 \| good	0.153 \| good	1.436 \| good	0.111 \| good
2026-03-11T10:00:00.000Z	23 \| good	2.29 \| good	9.215 \| good	25.464 \| good	0.158 \| good	1.309 \| good	0.112 \| good
2026-03-11T11:00:00.000Z	23 \| good	2.467 \| good	10 \| good	25.492 \| good	0.163 \| good	1.182 \| good	0.113 \| good
2026-03-11T12:00:00.000Z	23 \| good	2.402 \| good	9.957 \| good	24.547 \| good	0.168 \| good	1.055 \| good	0.114 \| good
2026-03-11T13:00:00.000Z	23 \| good	3.877 \| good	17.08 \| good	25.127 \| good	0.174 \| good	1.419 \| good	0.118 \| good
2026-03-11T14:00:00.000Z	33 \| good	5.691 \| good	24.434 \| good	24.759 \| good	0.18 \| good	1.783 \| good	0.121 \| good
2026-03-11T15:00:00.000Z	52 \| moderate	9.529 \| good	42.825 \| good	23.018 \| good	0.186 \| good	2.148 \| good	0.125 \| good
2026-03-11T16:00:00.000Z	33 \| good	6.357 \| good	28.122 \| good	23.65 \| good	0.195 \| good	1.996 \| good	0.144 \| good
2026-03-11T17:00:00.000Z	27 \| good	4.792 \| good	20.937 \| good	22.667 \| good	0.205 \| good	1.845 \| good	0.163 \| good
2026-03-11T18:00:00.000Z	38 \| good	7.35 \| good	32.138 \| good	23.503 \| good	0.214 \| good	1.694 \| good	0.181 \| good
2026-03-11T19:00:00.000Z	38 \| good	7.3 \| good	32.077 \| good	22.767 \| good	0.199 \| good	1.452 \| good	0.177 \| good
2026-03-11T20:00:00.000Z	33 \| good	5.528 \| good	23.937 \| good	20.751 \| good	0.183 \| good	1.21 \| good	0.174 \| good
2026-03-11T21:00:00.000Z	27 \| good	4.685 \| good	20.123 \| good	20.84 \| good	0.168 \| good	0.968 \| good	0.17 \| good
2026-03-11T22:00:00.000Z	27 \| good	4.701 \| good	20.168 \| good	24.246 \| good	0.153 \| good	1.132 \| good	0.169 \| good
2026-03-11T23:00:00.000Z	26 \| good	2.777 \| good	11.101 \| good	27.681 \| good	0.137 \| good	1.295 \| good	0.169 \| good
2026-03-12T00:00:00.000Z	25 \| good	3.989 \| good	17.136 \| good	26.978 \| good	0.122 \| good	1.458 \| good	0.168 \| good
2026-03-12T01:00:00.000Z	27 \| good	5.184 \| good	22.154 \| good	23.525 \| good	0.112 \| good	1.407 \| good	0.162 \| good
2026-03-12T02:00:00.000Z	38 \| good	6.829 \| good	30.123 \| good	20.308 \| good	0.102 \| good	1.357 \| good	0.157 \| good
2026-03-12T03:00:00.000Z	38 \| good	7.204 \| good	31.957 \| good	21.048 \| good	0.093 \| good	1.306 \| good	0.151 \| good
2026-03-12T04:00:00.000Z	44 \| good	7.674 \| good	33.895 \| good	20.184 \| good	0.117 \| good	1.252 \| good	0.148 \| good
2026-03-12T05:00:00.000Z	44 \| good	7.641 \| good	33.868 \| good	15.464 \| good	0.141 \| good	1.198 \| good	0.144 \| good
2026-03-12T06:00:00.000Z	39 \| good	1.424 \| good	1.692 \| good	42.084 \| good	0.165 \| good	1.145 \| good	0.141 \| good
2026-03-12T07:00:00.000Z	33 \| good	5.68 \| good	24.25 \| good	18.114 \| good	0.194 \| good	1.177 \| good	0.142 \| good
2026-03-12T08:00:00.000Z	22 \| good	3.937 \| good	17.192 \| good	18.154 \| good	0.223 \| good	1.21 \| good	0.144 \| good
2026-03-12T09:00:00.000Z	18 \| good	2.664 \| good	11.06 \| good	18.503 \| good	0.252 \| good	1.243 \| good	0.146 \| good
2026-03-12T10:00:00.000Z	33 \| good	6.274 \| good	28.107 \| good	15.093 \| good	0.27 \| good	1.494 \| good	0.149 \| good
2026-03-12T11:00:00.000Z	38 \| good	7.395 \| good	32.302 \| good	13.517 \| good	0.287 \| good	1.745 \| good	0.152 \| good
2026-03-12T12:00:00.000Z	29 \| good	3.019 \| good	3.53 \| good	31.385 \| good	0.304 \| good	2.002 \| good	0.154 \| good
2026-03-12T13:00:00.000Z	31 \| good	4.347 \| good	5.026 \| good	33.813 \| good	0.333 \| good	1.847 \| good	0.156 \| good
2026-03-12T14:00:00.000Z	33 \| good	3.85 \| good	4.701 \| good	36.241 \| good	0.363 \| good	1.691 \| good	0.158 \| good
2026-03-12T15:00:00.000Z	36 \| good	3.926 \| good	5.093 \| good	38.669 \| good	0.393 \| good	1.535 \| good	0.159 \| good
2026-03-12T16:00:00.000Z	31 \| good	5.202 \| good	22.846 \| good	33.456 \| good	0.376 \| good	1.283 \| good	0.154 \| good
2026-03-12T17:00:00.000Z	31 \| good	5.11 \| good	22.036 \| good	33.581 \| good	0.357 \| good	1.024 \| good	0.149 \| good
2026-03-12T18:00:00.000Z	44 \| good	3.748 \| good	5.191 \| good	46.807 \| good	0.332 \| good	0.755 \| good	0.143 \| good
2026-03-12T19:00:00.000Z	44 \| good	3.478 \| good	4.85 \| good	48.006 \| good	0.334 \| good	0.703 \| good	0.141 \| good
2026-03-12T20:00:00.000Z	45 \| good	3.255 \| good	4.54 \| good	49.206 \| good	0.335 \| good	0.651 \| good	0.138 \| good
2026-03-12T21:00:00.000Z	46 \| good	3.044 \| good	4.231 \| good	50.405 \| good	0.337 \| good	0.599 \| good	0.135 \| good
2026-03-12T22:00:00.000Z	45 \| good	2.812 \| good	3.89 \| good	48.701 \| good	0.359 \| good	1.207 \| good	0.14 \| good
2026-03-12T23:00:00.000Z	44 \| good	2.61 \| good	3.541 \| good	46.997 \| good	0.382 \| good	1.816 \| good	0.144 \| good
2026-03-13T00:00:00.000Z	42 \| good	2.817 \| good	3.52 \| good	45.292 \| good	0.405 \| good	2.424 \| good	0.148 \| good
2026-03-13T01:00:00.000Z	42 \| good	3.173 \| good	3.693 \| good	44.86 \| good	0.402 \| good	2.292 \| good	0.146 \| good
2026-03-13T02:00:00.000Z	41 \| good	2.866 \| good	3.273 \| good	44.427 \| good	0.399 \| good	2.16 \| good	0.145 \| good

Lake St. Louis

Empower business decisions with accurate air quality data

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

0.25ppm

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

Air quality levels in US

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

View Polluted Cities

Check live rankings of places in the USA with the cleanest air.

View Clean Cities

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 10:00:00, 2026-03-10.

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 09:00:00 on 2026-03-10.

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

The air quality in Lake St. Louis, Missouri right now is Moderate, with an AQI of 54.

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

In Lake St. Louis, Missouri, PM2.5 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 11.318 μg/m³.

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

Lake St. Louis, Missouri currently has a PM₁₀ concentration of 46.764 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 0.243 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 0.662 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 26.486 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 3.111 ppb.

Certified

APIs

Refund Policy

Historical Climate Data

Terms & Conditions