What is the current concentration of PM10 in Winnetka, Illinois?

The current PM10 concentration at Winnetka, Illinois is 94.694 μg/m3.

What is the current concentration of sulfur dioxide (SO2) in Winnetka, Illinois?

The current sulfur dioxide (SO2) concentration at Winnetka, Illinois is 0.263 ppb.

What is the current concentration of ozone (O3) in Winnetka, Illinois?

The current ozone (O3) concentration at Winnetka, Illinois is 52.43 ppm.

What is the current concentration of nitrogen dioxide (NO2) in Winnetka, Illinois?

The current nitrogen dioxide (NO2) concentration at Winnetka, Illinois is 3.803 ppb.

Live air quality index in Winnetka, Illinois today

Name: Live air pollution levels in Winnetka, Illinois today
Creator: Ambee

Stay updated with real-time air quality in Winnetka, Illinois 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

Winnetka, Illinois

Last updated: ... (Local time)

Major air pollutants in Winnetka, Illinois

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

22.50 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

94.69 μg/m³

155

255

425

605+

Ozone (O₃)

52.43 ppb

201

201+

Sulfur Dioxide (SO₂)

0.26 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

3.80 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.26 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

Winnetka, Illinois

Get Live Pollen Counts

Winnetka, Illinois

Scroll To Air Quality Map

Track live Winnetka, Illinois air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-06-05T11:00:00.000Z	142 \| sensitive	52.096 \| moderate	222.585 \| moderate	16.961 \| good	0.379 \| good	16.403 \| good	0.557 \| good
2025-06-05T12:00:00.000Z	127 \| sensitive	45.861 \| moderate	201.786 \| moderate	19.798 \| good	0.332 \| good	16.544 \| good	0.556 \| good
2025-06-05T13:00:00.000Z	127 \| sensitive	45.545 \| moderate	206.816 \| moderate	25.681 \| good	0.421 \| good	10.522 \| good	0.482 \| good
2025-06-05T14:00:00.000Z	124 \| sensitive	44.538 \| moderate	185.417 \| moderate	28.029 \| good	0.356 \| good	6.426 \| good	0.41 \| good
2025-06-05T15:00:00.000Z	122 \| sensitive	44.466 \| moderate	197.216 \| moderate	32.225 \| good	0.313 \| good	4.609 \| good	0.394 \| good
2025-06-05T16:00:00.000Z	134 \| sensitive	49.432 \| moderate	209.85 \| moderate	36.858 \| good	0.728 \| good	3.53 \| good	0.389 \| good
2025-06-05T17:00:00.000Z	147 \| sensitive	54.169 \| moderate	227.532 \| moderate	42.684 \| good	2.724 \| good	3.902 \| good	0.378 \| good
2025-06-05T18:00:00.000Z	153 \| unhealthy	58.482 \| poor	233.433 \| moderate	42.717 \| good	1.269 \| good	3.191 \| good	0.357 \| good
2025-06-05T19:00:00.000Z	155 \| unhealthy	60.66 \| poor	247.369 \| moderate	46.956 \| good	1.394 \| good	1.372 \| good	0.305 \| good
2025-06-05T20:00:00.000Z	151 \| unhealthy	56.026 \| poor	217.87 \| moderate	49.319 \| good	0.992 \| good	2.989 \| good	0.289 \| good
2025-06-05T21:00:00.000Z	155 \| unhealthy	60.517 \| poor	225.745 \| moderate	52.725 \| good	0.989 \| good	3.157 \| good	0.268 \| good
2025-06-05T22:00:00.000Z	153 \| unhealthy	58.758 \| poor	246.483 \| moderate	53.896 \| good	0.474 \| good	5.851 \| good	0.268 \| good
2025-06-05T23:00:00.000Z	151 \| unhealthy	56.347 \| poor	237.039 \| moderate	53.907 \| good	0.411 \| good	5.808 \| good	0.252 \| good
2025-06-06T00:00:00.000Z	142 \| sensitive	52.316 \| moderate	214.841 \| moderate	53.309 \| good	0.842 \| good	5.685 \| good	0.258 \| good
2025-06-06T01:00:00.000Z	142 \| sensitive	51.763 \| moderate	229.826 \| moderate	50.204 \| good	1.193 \| good	8.319 \| good	0.258 \| good
2025-06-06T02:00:00.000Z	139 \| sensitive	50.795 \| moderate	229.386 \| moderate	49.418 \| good	1.762 \| good	6.334 \| good	0.265 \| good
2025-06-06T03:00:00.000Z	134 \| sensitive	48.979 \| moderate	206.122 \| moderate	47.75 \| good	1.926 \| good	5.341 \| good	0.291 \| good
2025-06-06T04:00:00.000Z	119 \| sensitive	43.498 \| moderate	176.783 \| moderate	47.583 \| good	1.743 \| good	3.506 \| good	0.284 \| good
2025-06-06T05:00:00.000Z	115 \| sensitive	40.775 \| moderate	163.511 \| moderate	46.181 \| good	0.989 \| good	5.545 \| good	0.331 \| good
2025-06-06T06:00:00.000Z	99 \| moderate	34.88 \| fine	149.604 \| fine	43.411 \| good	0.828 \| good	11.692 \| good	0.346 \| good
2025-06-06T07:00:00.000Z	100 \| moderate	34.354 \| fine	152.933 \| fine	43.404 \| good	0.384 \| good	10.179 \| good	0.317 \| good
2025-06-06T08:00:00.000Z	96 \| moderate	33.093 \| fine	127.925 \| fine	46.087 \| good	0.317 \| good	9.972 \| good	0.323 \| good
2025-06-06T09:00:00.000Z	96 \| moderate	33.358 \| fine	138.028 \| fine	44.684 \| good	0.33 \| good	13.474 \| good	0.323 \| good
2025-06-06T10:00:00.000Z	94 \| moderate	32.402 \| fine	130.605 \| fine	44.148 \| good	1.122 \| good	13.382 \| good	0.323 \| good
2025-06-06T11:00:00.000Z	94 \| moderate	32.389 \| fine	136.159 \| fine	43.515 \| good	0.338 \| good	13.207 \| good	0.368 \| good
2025-06-06T12:00:00.000Z	94 \| moderate	32.149 \| fine	134.955 \| fine	43.625 \| good	0.371 \| good	8.346 \| good	0.354 \| good
2025-06-06T13:00:00.000Z	94 \| moderate	31.692 \| fine	139.599 \| fine	43.841 \| good	0.39 \| good	7.517 \| good	0.317 \| good
2025-06-06T14:00:00.000Z	94 \| moderate	32.306 \| fine	129.317 \| fine	43.863 \| good	0.386 \| good	14.537 \| good	0.451 \| good
2025-06-06T15:00:00.000Z	94 \| moderate	31.926 \| fine	131.749 \| fine	44.548 \| good	0.391 \| good	10.239 \| good	0.345 \| good
2025-06-06T16:00:00.000Z	94 \| moderate	31.907 \| fine	134.588 \| fine	45.256 \| good	0.828 \| good	3.06 \| good	0.264 \| good
2025-06-06T17:00:00.000Z	96 \| moderate	32.686 \| fine	142.461 \| fine	46.427 \| good	0.7 \| good	3.076 \| good	0.257 \| good
2025-06-06T18:00:00.000Z	94 \| moderate	31.906 \| fine	128.478 \| fine	48.094 \| good	0.432 \| good	2.075 \| good	0.257 \| good
2025-06-06T19:00:00.000Z	94 \| moderate	31.796 \| fine	129.118 \| fine	52.682 \| good	1.07 \| good	2.574 \| good	0.236 \| good
2025-06-06T20:00:00.000Z	96 \| moderate	33.18 \| fine	126.269 \| fine	55.199 \| fine	0.507 \| good	2.199 \| good	0.236 \| good
2025-06-06T21:00:00.000Z	102 \| sensitive	35.631 \| moderate	136.544 \| fine	57.745 \| fine	0.425 \| good	2.293 \| good	0.236 \| good
2025-06-06T22:00:00.000Z	110 \| sensitive	39.26 \| moderate	156.7 \| moderate	59.693 \| fine	0.407 \| good	6.107 \| good	0.221 \| good
2025-06-06T23:00:00.000Z	107 \| sensitive	37.603 \| moderate	161.16 \| moderate	62.121 \| fine	0.482 \| good	7.908 \| good	0.221 \| good
2025-06-07T00:00:00.000Z	94 \| moderate	32.358 \| fine	138.727 \| fine	64.988 \| fine	0.502 \| good	7.473 \| good	0.258 \| good
2025-06-07T01:00:00.000Z	88 \| moderate	29.051 \| fine	108.557 \| fine	63.628 \| fine	1.281 \| good	7.673 \| good	0.263 \| good
2025-06-07T02:00:00.000Z	84 \| moderate	27.138 \| fine	111.788 \| fine	63.368 \| fine	1.018 \| good	9.966 \| good	0.263 \| good
2025-06-07T03:00:00.000Z	82 \| moderate	26.022 \| fine	115.3 \| fine	60.852 \| fine	0.891 \| good	9.273 \| good	0.284 \| good
2025-06-07T04:00:00.000Z	81 \| moderate	24.982 \| fine	110.041 \| fine	60.484 \| fine	0.798 \| good	6.399 \| good	0.27 \| good
2025-06-07T05:00:00.000Z	79 \| moderate	23.727 \| fine	103.631 \| fine	55.429 \| fine	0.431 \| good	4.028 \| good	0.27 \| good
2025-06-07T06:00:00.000Z	77 \| moderate	22.793 \| fine	96.83 \| fine	55.325 \| fine	0.325 \| good	5.061 \| good	0.27 \| good
2025-06-07T07:00:00.000Z	73 \| moderate	21.364 \| fine	92.4 \| fine	54.068 \| good	0.317 \| good	5.652 \| good	0.27 \| good
2025-06-07T08:00:00.000Z	75 \| moderate	22.234 \| fine	100.295 \| fine	54.395 \| good	0.286 \| good	5.58 \| good	0.243 \| good
2025-06-07T09:00:00.000Z	75 \| moderate	22.5 \| fine	94.694 \| fine	52.43 \| good	0.263 \| good	3.803 \| good	0.264 \| good
2025-06-07T10:00:00.000Z	75 \| moderate	22.366 \| fine	89.372 \| fine	50.555 \| good	0.221 \| good	3.353 \| good	0.264 \| good
2025-06-07T10:00:00.000Z	77 \| moderate	22.5 \| fine	94.694 \| fine	52.43 \| good	0.263 \| good	3.803 \| good	0.264 \| good
2025-06-07T11:00:00.000Z	58 \| moderate	13.427 \| fine	60.311 \| fine	30.993 \| good	0.773 \| good	6.115 \| good	0.22 \| good
2025-06-07T12:00:00.000Z	60 \| moderate	14.048 \| fine	63.024 \| fine	28.92 \| good	0.701 \| good	5.928 \| good	0.218 \| good
2025-06-07T13:00:00.000Z	58 \| moderate	13.319 \| fine	60.039 \| fine	25.951 \| good	1.232 \| good	5.015 \| good	0.21 \| good
2025-06-07T14:00:00.000Z	58 \| moderate	13.146 \| fine	58.982 \| fine	28.19 \| good	1.119 \| good	4.942 \| good	0.209 \| good
2025-06-07T15:00:00.000Z	58 \| moderate	12.606 \| fine	56.503 \| fine	31.633 \| good	1.006 \| good	4.868 \| good	0.208 \| good
2025-06-07T16:00:00.000Z	62 \| moderate	15.343 \| fine	67.792 \| fine	35.259 \| good	1.213 \| good	3.292 \| good	0.193 \| good
2025-06-07T17:00:00.000Z	62 \| moderate	15.239 \| fine	68.023 \| fine	38.873 \| good	1.183 \| good	3.418 \| good	0.197 \| good
2025-06-07T18:00:00.000Z	58 \| moderate	13.249 \| fine	59.697 \| fine	38.867 \| good	1.154 \| good	3.543 \| good	0.2 \| good
2025-06-07T19:00:00.000Z	44 \| good	8.499 \| good	37.453 \| good	37.944 \| good	1.252 \| good	4.75 \| good	0.207 \| good
2025-06-07T20:00:00.000Z	44 \| good	8.41 \| good	36.857 \| good	38.452 \| good	1.228 \| good	5.055 \| good	0.211 \| good
2025-06-07T21:00:00.000Z	44 \| good	8.062 \| good	35.462 \| good	39.941 \| good	1.204 \| good	5.36 \| good	0.216 \| good
2025-06-07T22:00:00.000Z	49 \| good	8.523 \| good	37.625 \| good	42.134 \| good	1.312 \| good	13.28 \| good	0.266 \| good
2025-06-07T23:00:00.000Z	52 \| moderate	9.569 \| good	42.452 \| good	42.383 \| good	1.189 \| good	13.355 \| good	0.268 \| good
2025-06-08T00:00:00.000Z	38 \| good	6.755 \| good	29.981 \| good	38.701 \| good	1.066 \| good	13.431 \| good	0.269 \| good
2025-06-08T01:00:00.000Z	49 \| good	9.335 \| good	41.802 \| good	37.327 \| good	1.326 \| good	14.43 \| good	0.264 \| good
2025-06-08T02:00:00.000Z	56 \| moderate	11.63 \| good	51.606 \| good	37.656 \| good	1.164 \| good	13.575 \| good	0.256 \| good
2025-06-08T03:00:00.000Z	56 \| moderate	12.342 \| fine	55.434 \| fine	35.213 \| good	1.003 \| good	12.72 \| good	0.248 \| good
2025-06-08T04:00:00.000Z	44 \| good	8.438 \| good	36.923 \| good	35.166 \| good	1.489 \| good	16.029 \| good	0.267 \| good
2025-06-08T05:00:00.000Z	44 \| good	7.555 \| good	33.322 \| good	34.855 \| good	1.323 \| good	14.92 \| good	0.256 \| good
2025-06-08T06:00:00.000Z	38 \| good	7.169 \| good	31.737 \| good	36.224 \| good	1.157 \| good	13.811 \| good	0.246 \| good
2025-06-08T07:00:00.000Z	33 \| good	6.376 \| good	28.036 \| good	32.325 \| good	1.934 \| good	16.408 \| good	0.256 \| good
2025-06-08T08:00:00.000Z	33 \| good	5.644 \| good	24.498 \| good	30.424 \| good	1.769 \| good	15.193 \| good	0.246 \| good
2025-06-08T09:00:00.000Z	38 \| good	7.125 \| good	31.295 \| good	24.363 \| good	1.604 \| good	13.978 \| good	0.236 \| good
2025-06-08T10:00:00.000Z	23 \| good	3.003 \| good	12.78 \| good	25.077 \| good	2.435 \| good	14.369 \| good	0.259 \| good
2025-06-08T11:00:00.000Z	26 \| good	3.55 \| good	15.6 \| good	27.706 \| good	2.259 \| good	13.621 \| good	0.251 \| good
2025-06-08T12:00:00.000Z	38 \| good	6.626 \| good	29.613 \| good	28.966 \| good	2.083 \| good	12.872 \| good	0.243 \| good
2025-06-08T13:00:00.000Z	27 \| good	4.295 \| good	18.776 \| good	28.636 \| good	3.033 \| good	7.746 \| good	0.263 \| good
2025-06-08T14:00:00.000Z	32 \| good	3.416 \| good	14.754 \| good	35.019 \| good	3.284 \| good	8.52 \| good	0.271 \| good
2025-06-08T15:00:00.000Z	40 \| good	3.463 \| good	14.86 \| good	42.831 \| good	3.536 \| good	9.294 \| good	0.279 \| good
2025-06-08T16:00:00.000Z	48 \| good	7.092 \| good	31.276 \| good	51.786 \| good	1.466 \| good	2.993 \| good	0.217 \| good
2025-06-08T17:00:00.000Z	54 \| moderate	9.049 \| good	40.18 \| good	56.27 \| fine	1.824 \| good	3.526 \| good	0.232 \| good
2025-06-08T18:00:00.000Z	49 \| good	8.719 \| good	38.621 \| good	47.706 \| good	2.181 \| good	4.06 \| good	0.247 \| good
2025-06-08T19:00:00.000Z	31 \| good	5.354 \| good	23.222 \| good	34.129 \| good	0.823 \| good	2.623 \| good	0.187 \| good
2025-06-08T20:00:00.000Z	30 \| good	3.593 \| good	15.374 \| good	31.901 \| good	1.043 \| good	2.908 \| good	0.198 \| good
2025-06-08T21:00:00.000Z	34 \| good	3.265 \| good	14.211 \| good	36.851 \| good	1.263 \| good	3.193 \| good	0.21 \| good
2025-06-08T22:00:00.000Z	37 \| good	1.737 \| good	7.239 \| good	40.004 \| good	0.681 \| good	5.863 \| good	0.191 \| good
2025-06-08T23:00:00.000Z	40 \| good	5.302 \| good	22.75 \| good	42.542 \| good	0.817 \| good	6.506 \| good	0.199 \| good
2025-06-09T00:00:00.000Z	38 \| good	1.388 \| good	5.576 \| good	41.33 \| good	0.953 \| good	7.15 \| good	0.206 \| good
2025-06-09T01:00:00.000Z	52 \| moderate	10.269 \| good	45.656 \| good	36.476 \| good	0.935 \| good	8.72 \| good	0.196 \| good
2025-06-09T02:00:00.000Z	54 \| moderate	11.317 \| good	50.154 \| good	23.785 \| good	1.039 \| good	9.048 \| good	0.196 \| good
2025-06-09T03:00:00.000Z	54 \| moderate	11.136 \| good	49.295 \| good	22.484 \| good	1.143 \| good	9.376 \| good	0.197 \| good
2025-06-09T04:00:00.000Z	33 \| good	6.001 \| good	26.328 \| good	26.465 \| good	0.766 \| good	7.347 \| good	0.184 \| good
2025-06-09T05:00:00.000Z	21 \| good	2.596 \| good	10.788 \| good	23.056 \| good	0.885 \| good	7.663 \| good	0.186 \| good
2025-06-09T06:00:00.000Z	52 \| moderate	9.877 \| good	10.125 \| good	33.134 \| good	0.992 \| good	7.999 \| good	0.189 \| good
2025-06-09T07:00:00.000Z	16 \| good	3.114 \| good	12.977 \| good	16.343 \| good	0.839 \| good	9.994 \| good	0.181 \| good
2025-06-09T08:00:00.000Z	16 \| good	3.498 \| good	14.805 \| good	14.523 \| good	0.937 \| good	9.862 \| good	0.182 \| good
2025-06-09T09:00:00.000Z	22 \| good	3.76 \| good	16.048 \| good	12.259 \| good	1.035 \| good	9.73 \| good	0.183 \| good
2025-06-09T10:00:00.000Z	8 \| good	1.444 \| good	5.904 \| good	7.715 \| good	1.174 \| good	8.485 \| good	0.185 \| good

Winnetka

Get reliable air quality data to drive your business

Winnetka, Illinois air quality map: Track AQI near you

0.27ppm

How accurate is Illinois, USA air quality data?

Air quality data and pollutant measurements for Illinois, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.

Source: Ambee Data Sources

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Frequently asked questions

How often is the air quality data for Winnetka, Illinois updated?

The air quality for Winnetka, Illinois is updated every hour.

When was the worst air quality at Winnetka, Illinois in the last 24 hrs?

The worst air quality in Winnetka, Illinois in the last 24 hours was observed at 10:00:00 on 2025-06-06.

When was the best air quality at Winnetka, Illinois in the last 24 hrs?

In the last 24 hrs, the best air quality in Winnetka, Illinois was observed at 07:00:00 on 2025-06-07.

What is the current air quality in Winnetka, Illinois?

The current air quality in Winnetka, Illinois is 77, categorized as Moderate based on real-time data.

What pollutant is the most common in Winnetka, Illinois?

The most common pollutant in Winnetka, Illinois is PM2.5.

What should I do if the air quality in Winnetka, Illinois is poor?

If the air quality in Winnetka, Illinois is poor, consider staying indoors and wearing a mask to protect yourself.

What is the current concentration of PM_2.5 in Winnetka, Illinois?

The current PM_2.5 concentration at Winnetka, Illinois is 22.5 μg/m³.

What is the current concentration of PM₁₀ in Winnetka, Illinois?

The current PM₁₀ concentration at Winnetka, Illinois is 94.694 μg/m³.

What is the current concentration of carbon monoxide (CO) in Winnetka, Illinois?

The current carbon monoxide (CO) concentration at Winnetka, Illinois is 0.264 ppm.

What is the current concentration of sulfur dioxide (SO₂) in Winnetka, Illinois?

The current sulfur dioxide (SO₂) concentration at Winnetka, Illinois is 0.263 ppb.

What is the current concentration of ozone (O₃) in Winnetka, Illinois?

The current ozone (O₃) concentration at Winnetka, Illinois is 52.43 ppm.

What is the current concentration of nitrogen dioxide (NO₂) in Winnetka, Illinois?

The current nitrogen dioxide (NO₂) concentration at Winnetka, Illinois is 3.803 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-06-05T11:00:00.000Z	142 \| sensitive	52.096 \| moderate	222.585 \| moderate	16.961 \| good	0.379 \| good	16.403 \| good	0.557 \| good
2025-06-05T12:00:00.000Z	127 \| sensitive	45.861 \| moderate	201.786 \| moderate	19.798 \| good	0.332 \| good	16.544 \| good	0.556 \| good
2025-06-05T13:00:00.000Z	127 \| sensitive	45.545 \| moderate	206.816 \| moderate	25.681 \| good	0.421 \| good	10.522 \| good	0.482 \| good
2025-06-05T14:00:00.000Z	124 \| sensitive	44.538 \| moderate	185.417 \| moderate	28.029 \| good	0.356 \| good	6.426 \| good	0.41 \| good
2025-06-05T15:00:00.000Z	122 \| sensitive	44.466 \| moderate	197.216 \| moderate	32.225 \| good	0.313 \| good	4.609 \| good	0.394 \| good
2025-06-05T16:00:00.000Z	134 \| sensitive	49.432 \| moderate	209.85 \| moderate	36.858 \| good	0.728 \| good	3.53 \| good	0.389 \| good
2025-06-05T17:00:00.000Z	147 \| sensitive	54.169 \| moderate	227.532 \| moderate	42.684 \| good	2.724 \| good	3.902 \| good	0.378 \| good
2025-06-05T18:00:00.000Z	153 \| unhealthy	58.482 \| poor	233.433 \| moderate	42.717 \| good	1.269 \| good	3.191 \| good	0.357 \| good
2025-06-05T19:00:00.000Z	155 \| unhealthy	60.66 \| poor	247.369 \| moderate	46.956 \| good	1.394 \| good	1.372 \| good	0.305 \| good
2025-06-05T20:00:00.000Z	151 \| unhealthy	56.026 \| poor	217.87 \| moderate	49.319 \| good	0.992 \| good	2.989 \| good	0.289 \| good
2025-06-05T21:00:00.000Z	155 \| unhealthy	60.517 \| poor	225.745 \| moderate	52.725 \| good	0.989 \| good	3.157 \| good	0.268 \| good
2025-06-05T22:00:00.000Z	153 \| unhealthy	58.758 \| poor	246.483 \| moderate	53.896 \| good	0.474 \| good	5.851 \| good	0.268 \| good
2025-06-05T23:00:00.000Z	151 \| unhealthy	56.347 \| poor	237.039 \| moderate	53.907 \| good	0.411 \| good	5.808 \| good	0.252 \| good
2025-06-06T00:00:00.000Z	142 \| sensitive	52.316 \| moderate	214.841 \| moderate	53.309 \| good	0.842 \| good	5.685 \| good	0.258 \| good
2025-06-06T01:00:00.000Z	142 \| sensitive	51.763 \| moderate	229.826 \| moderate	50.204 \| good	1.193 \| good	8.319 \| good	0.258 \| good
2025-06-06T02:00:00.000Z	139 \| sensitive	50.795 \| moderate	229.386 \| moderate	49.418 \| good	1.762 \| good	6.334 \| good	0.265 \| good
2025-06-06T03:00:00.000Z	134 \| sensitive	48.979 \| moderate	206.122 \| moderate	47.75 \| good	1.926 \| good	5.341 \| good	0.291 \| good
2025-06-06T04:00:00.000Z	119 \| sensitive	43.498 \| moderate	176.783 \| moderate	47.583 \| good	1.743 \| good	3.506 \| good	0.284 \| good
2025-06-06T05:00:00.000Z	115 \| sensitive	40.775 \| moderate	163.511 \| moderate	46.181 \| good	0.989 \| good	5.545 \| good	0.331 \| good
2025-06-06T06:00:00.000Z	99 \| moderate	34.88 \| fine	149.604 \| fine	43.411 \| good	0.828 \| good	11.692 \| good	0.346 \| good
2025-06-06T07:00:00.000Z	100 \| moderate	34.354 \| fine	152.933 \| fine	43.404 \| good	0.384 \| good	10.179 \| good	0.317 \| good
2025-06-06T08:00:00.000Z	96 \| moderate	33.093 \| fine	127.925 \| fine	46.087 \| good	0.317 \| good	9.972 \| good	0.323 \| good
2025-06-06T09:00:00.000Z	96 \| moderate	33.358 \| fine	138.028 \| fine	44.684 \| good	0.33 \| good	13.474 \| good	0.323 \| good
2025-06-06T10:00:00.000Z	94 \| moderate	32.402 \| fine	130.605 \| fine	44.148 \| good	1.122 \| good	13.382 \| good	0.323 \| good
2025-06-06T11:00:00.000Z	94 \| moderate	32.389 \| fine	136.159 \| fine	43.515 \| good	0.338 \| good	13.207 \| good	0.368 \| good
2025-06-06T12:00:00.000Z	94 \| moderate	32.149 \| fine	134.955 \| fine	43.625 \| good	0.371 \| good	8.346 \| good	0.354 \| good
2025-06-06T13:00:00.000Z	94 \| moderate	31.692 \| fine	139.599 \| fine	43.841 \| good	0.39 \| good	7.517 \| good	0.317 \| good
2025-06-06T14:00:00.000Z	94 \| moderate	32.306 \| fine	129.317 \| fine	43.863 \| good	0.386 \| good	14.537 \| good	0.451 \| good
2025-06-06T15:00:00.000Z	94 \| moderate	31.926 \| fine	131.749 \| fine	44.548 \| good	0.391 \| good	10.239 \| good	0.345 \| good
2025-06-06T16:00:00.000Z	94 \| moderate	31.907 \| fine	134.588 \| fine	45.256 \| good	0.828 \| good	3.06 \| good	0.264 \| good
2025-06-06T17:00:00.000Z	96 \| moderate	32.686 \| fine	142.461 \| fine	46.427 \| good	0.7 \| good	3.076 \| good	0.257 \| good
2025-06-06T18:00:00.000Z	94 \| moderate	31.906 \| fine	128.478 \| fine	48.094 \| good	0.432 \| good	2.075 \| good	0.257 \| good
2025-06-06T19:00:00.000Z	94 \| moderate	31.796 \| fine	129.118 \| fine	52.682 \| good	1.07 \| good	2.574 \| good	0.236 \| good
2025-06-06T20:00:00.000Z	96 \| moderate	33.18 \| fine	126.269 \| fine	55.199 \| fine	0.507 \| good	2.199 \| good	0.236 \| good
2025-06-06T21:00:00.000Z	102 \| sensitive	35.631 \| moderate	136.544 \| fine	57.745 \| fine	0.425 \| good	2.293 \| good	0.236 \| good
2025-06-06T22:00:00.000Z	110 \| sensitive	39.26 \| moderate	156.7 \| moderate	59.693 \| fine	0.407 \| good	6.107 \| good	0.221 \| good
2025-06-06T23:00:00.000Z	107 \| sensitive	37.603 \| moderate	161.16 \| moderate	62.121 \| fine	0.482 \| good	7.908 \| good	0.221 \| good
2025-06-07T00:00:00.000Z	94 \| moderate	32.358 \| fine	138.727 \| fine	64.988 \| fine	0.502 \| good	7.473 \| good	0.258 \| good
2025-06-07T01:00:00.000Z	88 \| moderate	29.051 \| fine	108.557 \| fine	63.628 \| fine	1.281 \| good	7.673 \| good	0.263 \| good
2025-06-07T02:00:00.000Z	84 \| moderate	27.138 \| fine	111.788 \| fine	63.368 \| fine	1.018 \| good	9.966 \| good	0.263 \| good
2025-06-07T03:00:00.000Z	82 \| moderate	26.022 \| fine	115.3 \| fine	60.852 \| fine	0.891 \| good	9.273 \| good	0.284 \| good
2025-06-07T04:00:00.000Z	81 \| moderate	24.982 \| fine	110.041 \| fine	60.484 \| fine	0.798 \| good	6.399 \| good	0.27 \| good
2025-06-07T05:00:00.000Z	79 \| moderate	23.727 \| fine	103.631 \| fine	55.429 \| fine	0.431 \| good	4.028 \| good	0.27 \| good
2025-06-07T06:00:00.000Z	77 \| moderate	22.793 \| fine	96.83 \| fine	55.325 \| fine	0.325 \| good	5.061 \| good	0.27 \| good
2025-06-07T07:00:00.000Z	73 \| moderate	21.364 \| fine	92.4 \| fine	54.068 \| good	0.317 \| good	5.652 \| good	0.27 \| good
2025-06-07T08:00:00.000Z	75 \| moderate	22.234 \| fine	100.295 \| fine	54.395 \| good	0.286 \| good	5.58 \| good	0.243 \| good
2025-06-07T09:00:00.000Z	75 \| moderate	22.5 \| fine	94.694 \| fine	52.43 \| good	0.263 \| good	3.803 \| good	0.264 \| good
2025-06-07T10:00:00.000Z	75 \| moderate	22.366 \| fine	89.372 \| fine	50.555 \| good	0.221 \| good	3.353 \| good	0.264 \| good
2025-06-07T10:00:00.000Z	77 \| moderate	22.5 \| fine	94.694 \| fine	52.43 \| good	0.263 \| good	3.803 \| good	0.264 \| good
2025-06-07T11:00:00.000Z	58 \| moderate	13.427 \| fine	60.311 \| fine	30.993 \| good	0.773 \| good	6.115 \| good	0.22 \| good
2025-06-07T12:00:00.000Z	60 \| moderate	14.048 \| fine	63.024 \| fine	28.92 \| good	0.701 \| good	5.928 \| good	0.218 \| good
2025-06-07T13:00:00.000Z	58 \| moderate	13.319 \| fine	60.039 \| fine	25.951 \| good	1.232 \| good	5.015 \| good	0.21 \| good
2025-06-07T14:00:00.000Z	58 \| moderate	13.146 \| fine	58.982 \| fine	28.19 \| good	1.119 \| good	4.942 \| good	0.209 \| good
2025-06-07T15:00:00.000Z	58 \| moderate	12.606 \| fine	56.503 \| fine	31.633 \| good	1.006 \| good	4.868 \| good	0.208 \| good
2025-06-07T16:00:00.000Z	62 \| moderate	15.343 \| fine	67.792 \| fine	35.259 \| good	1.213 \| good	3.292 \| good	0.193 \| good
2025-06-07T17:00:00.000Z	62 \| moderate	15.239 \| fine	68.023 \| fine	38.873 \| good	1.183 \| good	3.418 \| good	0.197 \| good
2025-06-07T18:00:00.000Z	58 \| moderate	13.249 \| fine	59.697 \| fine	38.867 \| good	1.154 \| good	3.543 \| good	0.2 \| good
2025-06-07T19:00:00.000Z	44 \| good	8.499 \| good	37.453 \| good	37.944 \| good	1.252 \| good	4.75 \| good	0.207 \| good
2025-06-07T20:00:00.000Z	44 \| good	8.41 \| good	36.857 \| good	38.452 \| good	1.228 \| good	5.055 \| good	0.211 \| good
2025-06-07T21:00:00.000Z	44 \| good	8.062 \| good	35.462 \| good	39.941 \| good	1.204 \| good	5.36 \| good	0.216 \| good
2025-06-07T22:00:00.000Z	49 \| good	8.523 \| good	37.625 \| good	42.134 \| good	1.312 \| good	13.28 \| good	0.266 \| good
2025-06-07T23:00:00.000Z	52 \| moderate	9.569 \| good	42.452 \| good	42.383 \| good	1.189 \| good	13.355 \| good	0.268 \| good
2025-06-08T00:00:00.000Z	38 \| good	6.755 \| good	29.981 \| good	38.701 \| good	1.066 \| good	13.431 \| good	0.269 \| good
2025-06-08T01:00:00.000Z	49 \| good	9.335 \| good	41.802 \| good	37.327 \| good	1.326 \| good	14.43 \| good	0.264 \| good
2025-06-08T02:00:00.000Z	56 \| moderate	11.63 \| good	51.606 \| good	37.656 \| good	1.164 \| good	13.575 \| good	0.256 \| good
2025-06-08T03:00:00.000Z	56 \| moderate	12.342 \| fine	55.434 \| fine	35.213 \| good	1.003 \| good	12.72 \| good	0.248 \| good
2025-06-08T04:00:00.000Z	44 \| good	8.438 \| good	36.923 \| good	35.166 \| good	1.489 \| good	16.029 \| good	0.267 \| good
2025-06-08T05:00:00.000Z	44 \| good	7.555 \| good	33.322 \| good	34.855 \| good	1.323 \| good	14.92 \| good	0.256 \| good
2025-06-08T06:00:00.000Z	38 \| good	7.169 \| good	31.737 \| good	36.224 \| good	1.157 \| good	13.811 \| good	0.246 \| good
2025-06-08T07:00:00.000Z	33 \| good	6.376 \| good	28.036 \| good	32.325 \| good	1.934 \| good	16.408 \| good	0.256 \| good
2025-06-08T08:00:00.000Z	33 \| good	5.644 \| good	24.498 \| good	30.424 \| good	1.769 \| good	15.193 \| good	0.246 \| good
2025-06-08T09:00:00.000Z	38 \| good	7.125 \| good	31.295 \| good	24.363 \| good	1.604 \| good	13.978 \| good	0.236 \| good
2025-06-08T10:00:00.000Z	23 \| good	3.003 \| good	12.78 \| good	25.077 \| good	2.435 \| good	14.369 \| good	0.259 \| good
2025-06-08T11:00:00.000Z	26 \| good	3.55 \| good	15.6 \| good	27.706 \| good	2.259 \| good	13.621 \| good	0.251 \| good
2025-06-08T12:00:00.000Z	38 \| good	6.626 \| good	29.613 \| good	28.966 \| good	2.083 \| good	12.872 \| good	0.243 \| good
2025-06-08T13:00:00.000Z	27 \| good	4.295 \| good	18.776 \| good	28.636 \| good	3.033 \| good	7.746 \| good	0.263 \| good
2025-06-08T14:00:00.000Z	32 \| good	3.416 \| good	14.754 \| good	35.019 \| good	3.284 \| good	8.52 \| good	0.271 \| good
2025-06-08T15:00:00.000Z	40 \| good	3.463 \| good	14.86 \| good	42.831 \| good	3.536 \| good	9.294 \| good	0.279 \| good
2025-06-08T16:00:00.000Z	48 \| good	7.092 \| good	31.276 \| good	51.786 \| good	1.466 \| good	2.993 \| good	0.217 \| good
2025-06-08T17:00:00.000Z	54 \| moderate	9.049 \| good	40.18 \| good	56.27 \| fine	1.824 \| good	3.526 \| good	0.232 \| good
2025-06-08T18:00:00.000Z	49 \| good	8.719 \| good	38.621 \| good	47.706 \| good	2.181 \| good	4.06 \| good	0.247 \| good
2025-06-08T19:00:00.000Z	31 \| good	5.354 \| good	23.222 \| good	34.129 \| good	0.823 \| good	2.623 \| good	0.187 \| good
2025-06-08T20:00:00.000Z	30 \| good	3.593 \| good	15.374 \| good	31.901 \| good	1.043 \| good	2.908 \| good	0.198 \| good
2025-06-08T21:00:00.000Z	34 \| good	3.265 \| good	14.211 \| good	36.851 \| good	1.263 \| good	3.193 \| good	0.21 \| good
2025-06-08T22:00:00.000Z	37 \| good	1.737 \| good	7.239 \| good	40.004 \| good	0.681 \| good	5.863 \| good	0.191 \| good
2025-06-08T23:00:00.000Z	40 \| good	5.302 \| good	22.75 \| good	42.542 \| good	0.817 \| good	6.506 \| good	0.199 \| good
2025-06-09T00:00:00.000Z	38 \| good	1.388 \| good	5.576 \| good	41.33 \| good	0.953 \| good	7.15 \| good	0.206 \| good
2025-06-09T01:00:00.000Z	52 \| moderate	10.269 \| good	45.656 \| good	36.476 \| good	0.935 \| good	8.72 \| good	0.196 \| good
2025-06-09T02:00:00.000Z	54 \| moderate	11.317 \| good	50.154 \| good	23.785 \| good	1.039 \| good	9.048 \| good	0.196 \| good
2025-06-09T03:00:00.000Z	54 \| moderate	11.136 \| good	49.295 \| good	22.484 \| good	1.143 \| good	9.376 \| good	0.197 \| good
2025-06-09T04:00:00.000Z	33 \| good	6.001 \| good	26.328 \| good	26.465 \| good	0.766 \| good	7.347 \| good	0.184 \| good
2025-06-09T05:00:00.000Z	21 \| good	2.596 \| good	10.788 \| good	23.056 \| good	0.885 \| good	7.663 \| good	0.186 \| good
2025-06-09T06:00:00.000Z	52 \| moderate	9.877 \| good	10.125 \| good	33.134 \| good	0.992 \| good	7.999 \| good	0.189 \| good
2025-06-09T07:00:00.000Z	16 \| good	3.114 \| good	12.977 \| good	16.343 \| good	0.839 \| good	9.994 \| good	0.181 \| good
2025-06-09T08:00:00.000Z	16 \| good	3.498 \| good	14.805 \| good	14.523 \| good	0.937 \| good	9.862 \| good	0.182 \| good
2025-06-09T09:00:00.000Z	22 \| good	3.76 \| good	16.048 \| good	12.259 \| good	1.035 \| good	9.73 \| good	0.183 \| good
2025-06-09T10:00:00.000Z	8 \| good	1.444 \| good	5.904 \| good	7.715 \| good	1.174 \| good	8.485 \| good	0.185 \| good

Live air quality index in Winnetka, Illinois today

Major air pollutants in Winnetka, Illinois

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

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Winnetka, Illinois air quality map: Track AQI near you

Air quality in nearby cities

Wilmette, Illinois

Evanston, Illinois

Glenview, Illinois

Northbrook, Illinois

Skokie, Illinois

Morton Grove, Illinois

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Frequently asked questions

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What is the current concentration of sulfur dioxide (SO2) in Winnetka, Illinois?

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Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

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