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

The current PM10 concentration at Winnetka, Illinois is 19.86 μg/m3.

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

The current sulfur dioxide (SO2) concentration at Winnetka, Illinois is 0.421 ppb.

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

The current ozone (O3) concentration at Winnetka, Illinois is 29.938 ppm.

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

The current nitrogen dioxide (NO2) concentration at Winnetka, Illinois is 3.655 ppb.

Winnetka, Illinois live air quality index now

Q: What is the current concentration of PM2.5 in Winnetka, Illinois?

The current PM2.5 concentration at Winnetka, Illinois is 6.407 μg/m3.

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)

Good

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)

6.41 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

19.86 μg/m³

155

255

425

605+

Ozone (O₃)

29.94 ppb

201

201+

Sulfur Dioxide (SO₂)

0.42 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

3.65 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.25 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Moderate

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
2026-04-26T01:00:00.000Z	34 \| good	4.421 \| good	9.279 \| good	37.465 \| good	0.292 \| good	3.801 \| good	0.239 \| good
2026-04-26T02:00:00.000Z	36 \| good	3.923 \| good	7.972 \| good	38.932 \| good	0.35 \| good	7.437 \| good	0.239 \| good
2026-04-26T03:00:00.000Z	36 \| good	3.294 \| good	6.725 \| good	39.286 \| good	0.314 \| good	8.552 \| good	0.255 \| good
2026-04-26T04:00:00.000Z	36 \| good	3.306 \| good	6.901 \| good	39.286 \| good	0.306 \| good	7.724 \| good	0.24 \| good
2026-04-26T05:00:00.000Z	36 \| good	2.8 \| good	6.264 \| good	38.641 \| good	0.316 \| good	5.412 \| good	0.202 \| good
2026-04-26T06:00:00.000Z	36 \| good	2.791 \| good	6.097 \| good	38.915 \| good	0.307 \| good	3.025 \| good	0.202 \| good
2026-04-26T07:00:00.000Z	35 \| good	1.149 \| good	5.298 \| good	38.053 \| good	0.475 \| good	3.45 \| good	0.201 \| good
2026-04-26T08:00:00.000Z	34 \| good	1.116 \| good	5.297 \| good	36.931 \| good	0.377 \| good	2.927 \| good	0.163 \| good
2026-04-26T09:00:00.000Z	32 \| good	1.116 \| good	5.513 \| good	34.979 \| good	0.413 \| good	2.455 \| good	0.164 \| good
2026-04-26T10:00:00.000Z	32 \| good	2.573 \| good	6.141 \| good	35.353 \| good	0.32 \| good	5.343 \| good	0.153 \| good
2026-04-26T11:00:00.000Z	31 \| good	2.892 \| good	6.559 \| good	34.147 \| good	0.468 \| good	7.347 \| good	0.163 \| good
2026-04-26T12:00:00.000Z	31 \| good	3.175 \| good	6.896 \| good	34.13 \| good	0.504 \| good	3.611 \| good	0.163 \| good
2026-04-26T13:00:00.000Z	31 \| good	5.175 \| good	13.895 \| good	33.317 \| good	0.471 \| good	3.476 \| good	0.163 \| good
2026-04-26T14:00:00.000Z	38 \| good	7.18 \| good	20.289 \| good	34.297 \| good	0.502 \| good	1.491 \| good	0.167 \| good
2026-04-26T15:00:00.000Z	38 \| good	7.49 \| good	18.057 \| good	36.596 \| good	0.583 \| good	1.218 \| good	0.163 \| good
2026-04-26T16:00:00.000Z	44 \| good	7.727 \| good	18.398 \| good	35.017 \| good	0.624 \| good	1.542 \| good	0.163 \| good
2026-04-26T17:00:00.000Z	38 \| good	7.393 \| good	16.645 \| good	34.969 \| good	0.748 \| good	1.72 \| good	0.164 \| good
2026-04-26T18:00:00.000Z	38 \| good	7.224 \| good	16.613 \| good	36.07 \| good	1.829 \| good	1.361 \| good	0.164 \| good
2026-04-26T19:00:00.000Z	38 \| good	7.145 \| good	17.226 \| good	37.324 \| good	1.798 \| good	1.469 \| good	0.163 \| good
2026-04-26T20:00:00.000Z	38 \| good	6.985 \| good	16.377 \| good	39.295 \| good	2.044 \| good	1.398 \| good	0.163 \| good
2026-04-26T21:00:00.000Z	39 \| good	6.639 \| good	15.47 \| good	42.27 \| good	1.952 \| good	1.369 \| good	0.163 \| good
2026-04-26T22:00:00.000Z	39 \| good	6.868 \| good	16.067 \| good	41.505 \| good	1.39 \| good	2.273 \| good	0.164 \| good
2026-04-26T23:00:00.000Z	40 \| good	7.025 \| good	16.63 \| good	42.642 \| good	0.77 \| good	3.758 \| good	0.164 \| good
2026-04-27T00:00:00.000Z	40 \| good	7.09 \| good	16.596 \| good	43.457 \| good	0.626 \| good	5.656 \| good	0.153 \| good
2026-04-27T01:00:00.000Z	40 \| good	7.012 \| good	15.88 \| good	43.137 \| good	0.381 \| good	5.371 \| good	0.164 \| good
2026-04-27T02:00:00.000Z	40 \| good	7.114 \| good	16.701 \| good	43.017 \| good	0.459 \| good	7.213 \| good	0.174 \| good
2026-04-27T03:00:00.000Z	37 \| good	4.889 \| good	21.101 \| good	40.303 \| good	0.952 \| good	10.676 \| good	0.208 \| good
2026-04-27T04:00:00.000Z	44 \| good	7.764 \| good	17.08 \| good	39.768 \| good	0.523 \| good	10.123 \| good	0.164 \| good
2026-04-27T05:00:00.000Z	49 \| good	9.013 \| good	18.267 \| good	38.43 \| good	2.118 \| good	3.766 \| good	0.192 \| good
2026-04-27T06:00:00.000Z	44 \| good	8.262 \| good	17.772 \| good	39.868 \| good	1.531 \| good	2.05 \| good	0.164 \| good
2026-04-27T07:00:00.000Z	44 \| good	8.338 \| good	18.671 \| good	40.54 \| good	0.559 \| good	3.145 \| good	0.164 \| good
2026-04-27T08:00:00.000Z	44 \| good	7.512 \| good	17.459 \| good	39.179 \| good	0.338 \| good	2.433 \| good	0.153 \| good
2026-04-27T09:00:00.000Z	38 \| good	6.754 \| good	15.732 \| good	36.523 \| good	0.346 \| good	1.867 \| good	0.153 \| good
2026-04-27T10:00:00.000Z	38 \| good	6.758 \| good	15.737 \| good	34.037 \| good	0.306 \| good	2.244 \| good	0.153 \| good
2026-04-27T11:00:00.000Z	38 \| good	7.431 \| good	16.904 \| good	31.161 \| good	0.381 \| good	2.705 \| good	0.164 \| good
2026-04-27T12:00:00.000Z	38 \| good	7.47 \| good	16.695 \| good	28.983 \| good	0.38 \| good	3.046 \| good	0.153 \| good
2026-04-27T13:00:00.000Z	44 \| good	7.73 \| good	17.273 \| good	25.861 \| good	0.404 \| good	6.238 \| good	0.164 \| good
2026-04-27T14:00:00.000Z	44 \| good	7.846 \| good	18.664 \| good	25.943 \| good	0.403 \| good	4.244 \| good	0.185 \| good
2026-04-27T15:00:00.000Z	44 \| good	7.621 \| good	18.514 \| good	25.878 \| good	0.432 \| good	5.858 \| good	0.174 \| good
2026-04-27T16:00:00.000Z	44 \| good	7.695 \| good	20.493 \| good	24.319 \| good	0.514 \| good	3.476 \| good	0.174 \| good
2026-04-27T17:00:00.000Z	44 \| good	7.773 \| good	20.819 \| good	21.855 \| good	0.503 \| good	3.666 \| good	0.174 \| good
2026-04-27T18:00:00.000Z	44 \| good	7.75 \| good	20.824 \| good	22.898 \| good	0.468 \| good	4.398 \| good	0.174 \| good
2026-04-27T19:00:00.000Z	44 \| good	7.902 \| good	19.792 \| good	20.624 \| good	0.366 \| good	4.34 \| good	0.185 \| good
2026-04-27T20:00:00.000Z	38 \| good	7.468 \| good	18.144 \| good	21.42 \| good	0.445 \| good	6.045 \| good	0.174 \| good
2026-04-27T21:00:00.000Z	38 \| good	7.192 \| good	17.152 \| good	25.468 \| good	0.401 \| good	3.264 \| good	0.175 \| good
2026-04-27T22:00:00.000Z	38 \| good	6.849 \| good	16.863 \| good	28.503 \| good	0.371 \| good	2.84 \| good	0.178 \| good
2026-04-27T23:00:00.000Z	33 \| good	6.261 \| good	15.894 \| good	29.924 \| good	0.417 \| good	3.041 \| good	0.251 \| good
2026-04-28T00:00:00.000Z	33 \| good	6.407 \| good	19.86 \| good	29.938 \| good	0.421 \| good	3.655 \| good	0.251 \| good
2026-04-28T01:00:00.000Z	64 \| moderate	6.505 \| good	29.051 \| good	59.403 \| fine	0.722 \| good	6.167 \| good	0.173 \| good
2026-04-28T02:00:00.000Z	67 \| moderate	6.815 \| good	30.079 \| good	59.97 \| fine	0.659 \| good	6.086 \| good	0.168 \| good
2026-04-28T03:00:00.000Z	64 \| moderate	6.904 \| good	30.861 \| good	59.127 \| fine	0.596 \| good	6.005 \| good	0.163 \| good
2026-04-28T04:00:00.000Z	54 \| moderate	7.042 \| good	30.999 \| good	55.994 \| fine	0.569 \| good	5.345 \| good	0.16 \| good
2026-04-28T05:00:00.000Z	48 \| good	6.153 \| good	27.067 \| good	51.801 \| good	0.543 \| good	4.685 \| good	0.157 \| good
2026-04-28T06:00:00.000Z	54 \| moderate	3.472 \| good	15.17 \| good	55.831 \| fine	0.517 \| good	4.025 \| good	0.153 \| good
2026-04-28T07:00:00.000Z	50 \| good	2.513 \| good	10.113 \| good	53.703 \| good	0.471 \| good	3.604 \| good	0.153 \| good
2026-04-28T08:00:00.000Z	36 \| good	2.857 \| good	12.016 \| good	38.979 \| good	0.426 \| good	3.183 \| good	0.154 \| good
2026-04-28T09:00:00.000Z	29 \| good	4.686 \| good	20.179 \| good	30.625 \| good	0.38 \| good	2.762 \| good	0.154 \| good
2026-04-28T10:00:00.000Z	38 \| good	6.674 \| good	29.944 \| good	35.015 \| good	0.391 \| good	2.741 \| good	0.153 \| good
2026-04-28T11:00:00.000Z	38 \| good	7.373 \| good	32.117 \| good	33.749 \| good	0.401 \| good	2.72 \| good	0.153 \| good
2026-04-28T12:00:00.000Z	49 \| good	8.52 \| good	37.026 \| good	32.296 \| good	0.412 \| good	2.698 \| good	0.152 \| good
2026-04-28T13:00:00.000Z	44 \| good	7.884 \| good	34.12 \| good	28.707 \| good	0.468 \| good	2.697 \| good	0.154 \| good
2026-04-28T14:00:00.000Z	44 \| good	7.618 \| good	33.822 \| good	28.154 \| good	0.524 \| good	2.696 \| good	0.155 \| good
2026-04-28T15:00:00.000Z	30 \| good	4.903 \| good	21.084 \| good	31.653 \| good	0.579 \| good	2.695 \| good	0.157 \| good
2026-04-28T16:00:00.000Z	34 \| good	4.817 \| good	20.998 \| good	36.786 \| good	0.559 \| good	2.481 \| good	0.156 \| good
2026-04-28T17:00:00.000Z	37 \| good	4.749 \| good	20.908 \| good	40.429 \| good	0.538 \| good	2.266 \| good	0.156 \| good
2026-04-28T18:00:00.000Z	43 \| good	4.958 \| good	21.278 \| good	46.246 \| good	0.518 \| good	2.052 \| good	0.155 \| good
2026-04-28T19:00:00.000Z	44 \| good	5.808 \| good	25.088 \| good	47.835 \| good	0.529 \| good	2.209 \| good	0.155 \| good
2026-04-28T20:00:00.000Z	49 \| good	6.385 \| good	28.057 \| good	52.641 \| good	0.541 \| good	2.367 \| good	0.155 \| good
2026-04-28T21:00:00.000Z	47 \| good	7.195 \| good	31.992 \| good	51.077 \| good	0.553 \| good	2.524 \| good	0.155 \| good
2026-04-28T22:00:00.000Z	45 \| good	7.081 \| good	31.217 \| good	48.718 \| good	0.596 \| good	5.085 \| good	0.167 \| good
2026-04-28T23:00:00.000Z	44 \| good	5.921 \| good	25.353 \| good	47.87 \| good	0.639 \| good	7.645 \| good	0.179 \| good
2026-04-29T00:00:00.000Z	41 \| good	6.544 \| good	28.799 \| good	43.922 \| good	0.682 \| good	10.205 \| good	0.191 \| good
2026-04-29T01:00:00.000Z	49 \| good	8.763 \| good	38.791 \| good	41.696 \| good	0.836 \| good	13.675 \| good	0.207 \| good
2026-04-29T02:00:00.000Z	52 \| moderate	10.303 \| good	45.78 \| good	40.205 \| good	0.991 \| good	17.145 \| good	0.222 \| good
2026-04-29T03:00:00.000Z	54 \| moderate	11.42 \| good	50.7 \| good	35.25 \| good	1.145 \| good	20.615 \| good	0.238 \| good
2026-04-29T04:00:00.000Z	52 \| moderate	10.369 \| good	45.58 \| good	38.183 \| good	1.243 \| good	20.938 \| good	0.238 \| good
2026-04-29T05:00:00.000Z	52 \| moderate	9.542 \| good	42.628 \| good	34.404 \| good	1.342 \| good	21.26 \| good	0.238 \| good
2026-04-29T06:00:00.000Z	38 \| good	7.419 \| good	32.368 \| good	39.61 \| good	1.44 \| good	21.583 \| good	0.238 \| good
2026-04-29T07:00:00.000Z	39 \| good	5.519 \| good	23.305 \| good	42.346 \| good	1.41 \| good	20.893 \| good	0.23 \| good
2026-04-29T08:00:00.000Z	36 \| good	3.867 \| good	16.981 \| good	38.875 \| good	1.379 \| good	20.202 \| good	0.223 \| good
2026-04-29T09:00:00.000Z	32 \| good	3.99 \| good	17.811 \| good	34.628 \| good	1.349 \| good	19.512 \| good	0.215 \| good
2026-04-29T10:00:00.000Z	31 \| good	2.161 \| good	9.02 \| good	32.686 \| good	1.234 \| good	16.462 \| good	0.204 \| good
2026-04-29T11:00:00.000Z	33 \| good	5.52 \| good	23.902 \| good	32.334 \| good	1.118 \| good	13.411 \| good	0.193 \| good
2026-04-29T12:00:00.000Z	31 \| good	4.09 \| good	17.947 \| good	34.219 \| good	1.003 \| good	10.361 \| good	0.182 \| good
2026-04-29T13:00:00.000Z	33 \| good	2.923 \| good	12.095 \| good	35.735 \| good	1.051 \| good	8.64 \| good	0.179 \| good
2026-04-29T14:00:00.000Z	31 \| good	2.168 \| good	9.012 \| good	33.664 \| good	1.099 \| good	6.918 \| good	0.177 \| good
2026-04-29T15:00:00.000Z	34 \| good	1.556 \| good	6.107 \| good	36.871 \| good	1.147 \| good	5.196 \| good	0.174 \| good
2026-04-29T16:00:00.000Z	36 \| good	1.532 \| good	6.034 \| good	39.257 \| good	1.048 \| good	4.721 \| good	0.169 \| good
2026-04-29T17:00:00.000Z	36 \| good	1.798 \| good	7.103 \| good	39.461 \| good	0.95 \| good	4.246 \| good	0.163 \| good
2026-04-29T18:00:00.000Z	38 \| good	2.848 \| good	11.998 \| good	40.598 \| good	0.852 \| good	3.771 \| good	0.158 \| good
2026-04-29T19:00:00.000Z	36 \| good	2.106 \| good	8.923 \| good	39.144 \| good	0.804 \| good	3.897 \| good	0.156 \| good
2026-04-29T20:00:00.000Z	36 \| good	1.261 \| good	5.009 \| good	38.616 \| good	0.757 \| good	4.023 \| good	0.154 \| good
2026-04-29T21:00:00.000Z	36 \| good	1.823 \| good	7.865 \| good	39.24 \| good	0.709 \| good	4.148 \| good	0.151 \| good
2026-04-29T22:00:00.000Z	37 \| good	2.4 \| good	9.975 \| good	40.362 \| good	0.737 \| good	5.399 \| good	0.157 \| good
2026-04-29T23:00:00.000Z	40 \| good	2.533 \| good	10.08 \| good	43.141 \| good	0.764 \| good	6.649 \| good	0.163 \| good
2026-04-30T00:00:00.000Z	44 \| good	8.097 \| good	9.851 \| good	37.741 \| good	0.781 \| good	7.705 \| good	0.168 \| good

Winnetka

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Winnetka, Illinois air quality map: Track AQI near you

0.25ppm

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 05:00:00 on 2026-04-27.

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 11:00:00 on 2026-04-27.

What is the current air quality in Winnetka, Illinois?

The current air quality in Winnetka, Illinois is 33, categorized as Good 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 6.407 μg/m³.

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

The current PM₁₀ concentration at Winnetka, Illinois is 19.86 μg/m³.

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

The current carbon monoxide (CO) concentration at Winnetka, Illinois is 0.251 ppm.

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

The current sulfur dioxide (SO₂) concentration at Winnetka, Illinois is 0.421 ppb.

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

The current ozone (O₃) concentration at Winnetka, Illinois is 29.938 ppm.

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

The current nitrogen dioxide (NO₂) concentration at Winnetka, Illinois is 3.655 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-04-26T01:00:00.000Z	34 \| good	4.421 \| good	9.279 \| good	37.465 \| good	0.292 \| good	3.801 \| good	0.239 \| good
2026-04-26T02:00:00.000Z	36 \| good	3.923 \| good	7.972 \| good	38.932 \| good	0.35 \| good	7.437 \| good	0.239 \| good
2026-04-26T03:00:00.000Z	36 \| good	3.294 \| good	6.725 \| good	39.286 \| good	0.314 \| good	8.552 \| good	0.255 \| good
2026-04-26T04:00:00.000Z	36 \| good	3.306 \| good	6.901 \| good	39.286 \| good	0.306 \| good	7.724 \| good	0.24 \| good
2026-04-26T05:00:00.000Z	36 \| good	2.8 \| good	6.264 \| good	38.641 \| good	0.316 \| good	5.412 \| good	0.202 \| good
2026-04-26T06:00:00.000Z	36 \| good	2.791 \| good	6.097 \| good	38.915 \| good	0.307 \| good	3.025 \| good	0.202 \| good
2026-04-26T07:00:00.000Z	35 \| good	1.149 \| good	5.298 \| good	38.053 \| good	0.475 \| good	3.45 \| good	0.201 \| good
2026-04-26T08:00:00.000Z	34 \| good	1.116 \| good	5.297 \| good	36.931 \| good	0.377 \| good	2.927 \| good	0.163 \| good
2026-04-26T09:00:00.000Z	32 \| good	1.116 \| good	5.513 \| good	34.979 \| good	0.413 \| good	2.455 \| good	0.164 \| good
2026-04-26T10:00:00.000Z	32 \| good	2.573 \| good	6.141 \| good	35.353 \| good	0.32 \| good	5.343 \| good	0.153 \| good
2026-04-26T11:00:00.000Z	31 \| good	2.892 \| good	6.559 \| good	34.147 \| good	0.468 \| good	7.347 \| good	0.163 \| good
2026-04-26T12:00:00.000Z	31 \| good	3.175 \| good	6.896 \| good	34.13 \| good	0.504 \| good	3.611 \| good	0.163 \| good
2026-04-26T13:00:00.000Z	31 \| good	5.175 \| good	13.895 \| good	33.317 \| good	0.471 \| good	3.476 \| good	0.163 \| good
2026-04-26T14:00:00.000Z	38 \| good	7.18 \| good	20.289 \| good	34.297 \| good	0.502 \| good	1.491 \| good	0.167 \| good
2026-04-26T15:00:00.000Z	38 \| good	7.49 \| good	18.057 \| good	36.596 \| good	0.583 \| good	1.218 \| good	0.163 \| good
2026-04-26T16:00:00.000Z	44 \| good	7.727 \| good	18.398 \| good	35.017 \| good	0.624 \| good	1.542 \| good	0.163 \| good
2026-04-26T17:00:00.000Z	38 \| good	7.393 \| good	16.645 \| good	34.969 \| good	0.748 \| good	1.72 \| good	0.164 \| good
2026-04-26T18:00:00.000Z	38 \| good	7.224 \| good	16.613 \| good	36.07 \| good	1.829 \| good	1.361 \| good	0.164 \| good
2026-04-26T19:00:00.000Z	38 \| good	7.145 \| good	17.226 \| good	37.324 \| good	1.798 \| good	1.469 \| good	0.163 \| good
2026-04-26T20:00:00.000Z	38 \| good	6.985 \| good	16.377 \| good	39.295 \| good	2.044 \| good	1.398 \| good	0.163 \| good
2026-04-26T21:00:00.000Z	39 \| good	6.639 \| good	15.47 \| good	42.27 \| good	1.952 \| good	1.369 \| good	0.163 \| good
2026-04-26T22:00:00.000Z	39 \| good	6.868 \| good	16.067 \| good	41.505 \| good	1.39 \| good	2.273 \| good	0.164 \| good
2026-04-26T23:00:00.000Z	40 \| good	7.025 \| good	16.63 \| good	42.642 \| good	0.77 \| good	3.758 \| good	0.164 \| good
2026-04-27T00:00:00.000Z	40 \| good	7.09 \| good	16.596 \| good	43.457 \| good	0.626 \| good	5.656 \| good	0.153 \| good
2026-04-27T01:00:00.000Z	40 \| good	7.012 \| good	15.88 \| good	43.137 \| good	0.381 \| good	5.371 \| good	0.164 \| good
2026-04-27T02:00:00.000Z	40 \| good	7.114 \| good	16.701 \| good	43.017 \| good	0.459 \| good	7.213 \| good	0.174 \| good
2026-04-27T03:00:00.000Z	37 \| good	4.889 \| good	21.101 \| good	40.303 \| good	0.952 \| good	10.676 \| good	0.208 \| good
2026-04-27T04:00:00.000Z	44 \| good	7.764 \| good	17.08 \| good	39.768 \| good	0.523 \| good	10.123 \| good	0.164 \| good
2026-04-27T05:00:00.000Z	49 \| good	9.013 \| good	18.267 \| good	38.43 \| good	2.118 \| good	3.766 \| good	0.192 \| good
2026-04-27T06:00:00.000Z	44 \| good	8.262 \| good	17.772 \| good	39.868 \| good	1.531 \| good	2.05 \| good	0.164 \| good
2026-04-27T07:00:00.000Z	44 \| good	8.338 \| good	18.671 \| good	40.54 \| good	0.559 \| good	3.145 \| good	0.164 \| good
2026-04-27T08:00:00.000Z	44 \| good	7.512 \| good	17.459 \| good	39.179 \| good	0.338 \| good	2.433 \| good	0.153 \| good
2026-04-27T09:00:00.000Z	38 \| good	6.754 \| good	15.732 \| good	36.523 \| good	0.346 \| good	1.867 \| good	0.153 \| good
2026-04-27T10:00:00.000Z	38 \| good	6.758 \| good	15.737 \| good	34.037 \| good	0.306 \| good	2.244 \| good	0.153 \| good
2026-04-27T11:00:00.000Z	38 \| good	7.431 \| good	16.904 \| good	31.161 \| good	0.381 \| good	2.705 \| good	0.164 \| good
2026-04-27T12:00:00.000Z	38 \| good	7.47 \| good	16.695 \| good	28.983 \| good	0.38 \| good	3.046 \| good	0.153 \| good
2026-04-27T13:00:00.000Z	44 \| good	7.73 \| good	17.273 \| good	25.861 \| good	0.404 \| good	6.238 \| good	0.164 \| good
2026-04-27T14:00:00.000Z	44 \| good	7.846 \| good	18.664 \| good	25.943 \| good	0.403 \| good	4.244 \| good	0.185 \| good
2026-04-27T15:00:00.000Z	44 \| good	7.621 \| good	18.514 \| good	25.878 \| good	0.432 \| good	5.858 \| good	0.174 \| good
2026-04-27T16:00:00.000Z	44 \| good	7.695 \| good	20.493 \| good	24.319 \| good	0.514 \| good	3.476 \| good	0.174 \| good
2026-04-27T17:00:00.000Z	44 \| good	7.773 \| good	20.819 \| good	21.855 \| good	0.503 \| good	3.666 \| good	0.174 \| good
2026-04-27T18:00:00.000Z	44 \| good	7.75 \| good	20.824 \| good	22.898 \| good	0.468 \| good	4.398 \| good	0.174 \| good
2026-04-27T19:00:00.000Z	44 \| good	7.902 \| good	19.792 \| good	20.624 \| good	0.366 \| good	4.34 \| good	0.185 \| good
2026-04-27T20:00:00.000Z	38 \| good	7.468 \| good	18.144 \| good	21.42 \| good	0.445 \| good	6.045 \| good	0.174 \| good
2026-04-27T21:00:00.000Z	38 \| good	7.192 \| good	17.152 \| good	25.468 \| good	0.401 \| good	3.264 \| good	0.175 \| good
2026-04-27T22:00:00.000Z	38 \| good	6.849 \| good	16.863 \| good	28.503 \| good	0.371 \| good	2.84 \| good	0.178 \| good
2026-04-27T23:00:00.000Z	33 \| good	6.261 \| good	15.894 \| good	29.924 \| good	0.417 \| good	3.041 \| good	0.251 \| good
2026-04-28T00:00:00.000Z	33 \| good	6.407 \| good	19.86 \| good	29.938 \| good	0.421 \| good	3.655 \| good	0.251 \| good
2026-04-28T01:00:00.000Z	64 \| moderate	6.505 \| good	29.051 \| good	59.403 \| fine	0.722 \| good	6.167 \| good	0.173 \| good
2026-04-28T02:00:00.000Z	67 \| moderate	6.815 \| good	30.079 \| good	59.97 \| fine	0.659 \| good	6.086 \| good	0.168 \| good
2026-04-28T03:00:00.000Z	64 \| moderate	6.904 \| good	30.861 \| good	59.127 \| fine	0.596 \| good	6.005 \| good	0.163 \| good
2026-04-28T04:00:00.000Z	54 \| moderate	7.042 \| good	30.999 \| good	55.994 \| fine	0.569 \| good	5.345 \| good	0.16 \| good
2026-04-28T05:00:00.000Z	48 \| good	6.153 \| good	27.067 \| good	51.801 \| good	0.543 \| good	4.685 \| good	0.157 \| good
2026-04-28T06:00:00.000Z	54 \| moderate	3.472 \| good	15.17 \| good	55.831 \| fine	0.517 \| good	4.025 \| good	0.153 \| good
2026-04-28T07:00:00.000Z	50 \| good	2.513 \| good	10.113 \| good	53.703 \| good	0.471 \| good	3.604 \| good	0.153 \| good
2026-04-28T08:00:00.000Z	36 \| good	2.857 \| good	12.016 \| good	38.979 \| good	0.426 \| good	3.183 \| good	0.154 \| good
2026-04-28T09:00:00.000Z	29 \| good	4.686 \| good	20.179 \| good	30.625 \| good	0.38 \| good	2.762 \| good	0.154 \| good
2026-04-28T10:00:00.000Z	38 \| good	6.674 \| good	29.944 \| good	35.015 \| good	0.391 \| good	2.741 \| good	0.153 \| good
2026-04-28T11:00:00.000Z	38 \| good	7.373 \| good	32.117 \| good	33.749 \| good	0.401 \| good	2.72 \| good	0.153 \| good
2026-04-28T12:00:00.000Z	49 \| good	8.52 \| good	37.026 \| good	32.296 \| good	0.412 \| good	2.698 \| good	0.152 \| good
2026-04-28T13:00:00.000Z	44 \| good	7.884 \| good	34.12 \| good	28.707 \| good	0.468 \| good	2.697 \| good	0.154 \| good
2026-04-28T14:00:00.000Z	44 \| good	7.618 \| good	33.822 \| good	28.154 \| good	0.524 \| good	2.696 \| good	0.155 \| good
2026-04-28T15:00:00.000Z	30 \| good	4.903 \| good	21.084 \| good	31.653 \| good	0.579 \| good	2.695 \| good	0.157 \| good
2026-04-28T16:00:00.000Z	34 \| good	4.817 \| good	20.998 \| good	36.786 \| good	0.559 \| good	2.481 \| good	0.156 \| good
2026-04-28T17:00:00.000Z	37 \| good	4.749 \| good	20.908 \| good	40.429 \| good	0.538 \| good	2.266 \| good	0.156 \| good
2026-04-28T18:00:00.000Z	43 \| good	4.958 \| good	21.278 \| good	46.246 \| good	0.518 \| good	2.052 \| good	0.155 \| good
2026-04-28T19:00:00.000Z	44 \| good	5.808 \| good	25.088 \| good	47.835 \| good	0.529 \| good	2.209 \| good	0.155 \| good
2026-04-28T20:00:00.000Z	49 \| good	6.385 \| good	28.057 \| good	52.641 \| good	0.541 \| good	2.367 \| good	0.155 \| good
2026-04-28T21:00:00.000Z	47 \| good	7.195 \| good	31.992 \| good	51.077 \| good	0.553 \| good	2.524 \| good	0.155 \| good
2026-04-28T22:00:00.000Z	45 \| good	7.081 \| good	31.217 \| good	48.718 \| good	0.596 \| good	5.085 \| good	0.167 \| good
2026-04-28T23:00:00.000Z	44 \| good	5.921 \| good	25.353 \| good	47.87 \| good	0.639 \| good	7.645 \| good	0.179 \| good
2026-04-29T00:00:00.000Z	41 \| good	6.544 \| good	28.799 \| good	43.922 \| good	0.682 \| good	10.205 \| good	0.191 \| good
2026-04-29T01:00:00.000Z	49 \| good	8.763 \| good	38.791 \| good	41.696 \| good	0.836 \| good	13.675 \| good	0.207 \| good
2026-04-29T02:00:00.000Z	52 \| moderate	10.303 \| good	45.78 \| good	40.205 \| good	0.991 \| good	17.145 \| good	0.222 \| good
2026-04-29T03:00:00.000Z	54 \| moderate	11.42 \| good	50.7 \| good	35.25 \| good	1.145 \| good	20.615 \| good	0.238 \| good
2026-04-29T04:00:00.000Z	52 \| moderate	10.369 \| good	45.58 \| good	38.183 \| good	1.243 \| good	20.938 \| good	0.238 \| good
2026-04-29T05:00:00.000Z	52 \| moderate	9.542 \| good	42.628 \| good	34.404 \| good	1.342 \| good	21.26 \| good	0.238 \| good
2026-04-29T06:00:00.000Z	38 \| good	7.419 \| good	32.368 \| good	39.61 \| good	1.44 \| good	21.583 \| good	0.238 \| good
2026-04-29T07:00:00.000Z	39 \| good	5.519 \| good	23.305 \| good	42.346 \| good	1.41 \| good	20.893 \| good	0.23 \| good
2026-04-29T08:00:00.000Z	36 \| good	3.867 \| good	16.981 \| good	38.875 \| good	1.379 \| good	20.202 \| good	0.223 \| good
2026-04-29T09:00:00.000Z	32 \| good	3.99 \| good	17.811 \| good	34.628 \| good	1.349 \| good	19.512 \| good	0.215 \| good
2026-04-29T10:00:00.000Z	31 \| good	2.161 \| good	9.02 \| good	32.686 \| good	1.234 \| good	16.462 \| good	0.204 \| good
2026-04-29T11:00:00.000Z	33 \| good	5.52 \| good	23.902 \| good	32.334 \| good	1.118 \| good	13.411 \| good	0.193 \| good
2026-04-29T12:00:00.000Z	31 \| good	4.09 \| good	17.947 \| good	34.219 \| good	1.003 \| good	10.361 \| good	0.182 \| good
2026-04-29T13:00:00.000Z	33 \| good	2.923 \| good	12.095 \| good	35.735 \| good	1.051 \| good	8.64 \| good	0.179 \| good
2026-04-29T14:00:00.000Z	31 \| good	2.168 \| good	9.012 \| good	33.664 \| good	1.099 \| good	6.918 \| good	0.177 \| good
2026-04-29T15:00:00.000Z	34 \| good	1.556 \| good	6.107 \| good	36.871 \| good	1.147 \| good	5.196 \| good	0.174 \| good
2026-04-29T16:00:00.000Z	36 \| good	1.532 \| good	6.034 \| good	39.257 \| good	1.048 \| good	4.721 \| good	0.169 \| good
2026-04-29T17:00:00.000Z	36 \| good	1.798 \| good	7.103 \| good	39.461 \| good	0.95 \| good	4.246 \| good	0.163 \| good
2026-04-29T18:00:00.000Z	38 \| good	2.848 \| good	11.998 \| good	40.598 \| good	0.852 \| good	3.771 \| good	0.158 \| good
2026-04-29T19:00:00.000Z	36 \| good	2.106 \| good	8.923 \| good	39.144 \| good	0.804 \| good	3.897 \| good	0.156 \| good
2026-04-29T20:00:00.000Z	36 \| good	1.261 \| good	5.009 \| good	38.616 \| good	0.757 \| good	4.023 \| good	0.154 \| good
2026-04-29T21:00:00.000Z	36 \| good	1.823 \| good	7.865 \| good	39.24 \| good	0.709 \| good	4.148 \| good	0.151 \| good
2026-04-29T22:00:00.000Z	37 \| good	2.4 \| good	9.975 \| good	40.362 \| good	0.737 \| good	5.399 \| good	0.157 \| good
2026-04-29T23:00:00.000Z	40 \| good	2.533 \| good	10.08 \| good	43.141 \| good	0.764 \| good	6.649 \| good	0.163 \| good
2026-04-30T00:00:00.000Z	44 \| good	8.097 \| good	9.851 \| good	37.741 \| good	0.781 \| good	7.705 \| good	0.168 \| good

Winnetka, Illinois live air quality index now

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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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 PM2.5 in Winnetka, Illinois?

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

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

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

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

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

Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

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

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

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

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

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