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

The current PM10 concentration at Winnetka, Illinois is 46.733 μg/m3.

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

The current sulfur dioxide (SO2) concentration at Winnetka, Illinois is 1.81 ppb.

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

The current ozone (O3) concentration at Winnetka, Illinois is 46.353 ppm.

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

The current nitrogen dioxide (NO2) concentration at Winnetka, Illinois is 6.621 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 14.842 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)

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)

14.84 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

46.73 μg/m³

155

255

425

605+

Ozone (O₃)

46.35 ppb

201

201+

Sulfur Dioxide (SO₂)

1.81 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

6.62 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.26 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
2026-10-20T22:00:00.000Z	44 \| good	7.677 \| good	31.105 \| good	39.038 \| good	5.319 \| good	8.623 \| good	0.221 \| good
2026-10-20T23:00:00.000Z	41 \| good	7.014 \| good	28.622 \| good	43.795 \| good	2.624 \| good	25.245 \| good	0.236 \| good
2026-10-21T00:00:00.000Z	41 \| good	7.026 \| good	27.394 \| good	43.852 \| good	0.858 \| good	24.844 \| good	0.274 \| good
2026-10-21T01:00:00.000Z	38 \| good	7.49 \| good	29.337 \| good	37.397 \| good	0.682 \| good	30.239 \| good	0.288 \| good
2026-10-21T02:00:00.000Z	49 \| good	8.562 \| good	31.631 \| good	34.464 \| good	0.613 \| good	28.457 \| good	0.303 \| good
2026-10-21T03:00:00.000Z	56 \| moderate	11.613 \| good	51.32 \| good	9.852 \| good	2.582 \| good	35.195 \| good	0.287 \| good
2026-10-21T04:00:00.000Z	58 \| moderate	12.881 \| fine	48.573 \| good	22.983 \| good	0.602 \| good	26.273 \| good	0.324 \| good
2026-10-21T05:00:00.000Z	58 \| moderate	12.908 \| fine	48.446 \| good	12.377 \| good	1.494 \| good	23.964 \| good	0.299 \| good
2026-10-21T06:00:00.000Z	60 \| moderate	13.609 \| fine	50.107 \| good	7.713 \| good	1.92 \| good	22.628 \| good	0.287 \| good
2026-10-21T07:00:00.000Z	58 \| moderate	13.34 \| fine	49.735 \| good	7.139 \| good	1.64 \| good	18.848 \| good	0.302 \| good
2026-10-21T08:00:00.000Z	60 \| moderate	13.853 \| fine	52.185 \| good	3.906 \| good	0.915 \| good	19.151 \| good	0.265 \| good
2026-10-21T09:00:00.000Z	62 \| moderate	14.892 \| fine	56.036 \| fine	6.454 \| good	0.874 \| good	19.627 \| good	0.25 \| good
2026-10-21T10:00:00.000Z	66 \| moderate	16.867 \| fine	64.265 \| fine	4.82 \| good	0.919 \| good	21.295 \| good	0.302 \| good
2026-10-21T11:00:00.000Z	66 \| moderate	16.96 \| fine	64.426 \| fine	3.987 \| good	0.981 \| good	23.589 \| good	0.376 \| good
2026-10-21T12:00:00.000Z	71 \| moderate	20.039 \| fine	75.594 \| fine	4.141 \| good	0.953 \| good	22.257 \| good	0.387 \| good
2026-10-21T13:00:00.000Z	71 \| moderate	19.831 \| fine	77.305 \| fine	2.706 \| good	0.983 \| good	17.471 \| good	0.387 \| good
2026-10-21T14:00:00.000Z	79 \| moderate	23.552 \| fine	92.312 \| fine	3.181 \| good	1.163 \| good	24.655 \| good	0.473 \| good
2026-10-21T15:00:00.000Z	81 \| moderate	24.616 \| fine	105.067 \| fine	5.359 \| good	1.62 \| good	23.175 \| good	0.423 \| good
2026-10-21T16:00:00.000Z	82 \| moderate	25.871 \| fine	99.094 \| fine	8.792 \| good	1.994 \| good	21.366 \| good	0.324 \| good
2026-10-21T17:00:00.000Z	73 \| moderate	20.759 \| fine	83.866 \| fine	13.431 \| good	1.903 \| good	19.041 \| good	0.27 \| good
2026-10-21T18:00:00.000Z	64 \| moderate	15.555 \| fine	66.622 \| fine	20.211 \| good	1.98 \| good	17.351 \| good	0.258 \| good
2026-10-21T19:00:00.000Z	62 \| moderate	15.445 \| fine	65.067 \| fine	28.328 \| good	1.289 \| good	18.12 \| good	0.258 \| good
2026-10-21T20:00:00.000Z	49 \| good	8.889 \| good	37.375 \| good	35.916 \| good	1.291 \| good	15.054 \| good	0.258 \| good
2026-10-21T21:00:00.000Z	49 \| good	8.889 \| good	36.917 \| good	40.596 \| good	1.44 \| good	15.757 \| good	0.258 \| good
2026-10-21T22:00:00.000Z	44 \| good	8.221 \| good	31.506 \| good	43.194 \| good	1.674 \| good	16.821 \| good	0.258 \| good
2026-10-21T23:00:00.000Z	52 \| moderate	9.675 \| good	37.624 \| good	44.735 \| good	2.118 \| good	24.563 \| good	0.273 \| good
2026-10-22T00:00:00.000Z	56 \| moderate	12.117 \| fine	48.762 \| good	39.749 \| good	1.52 \| good	15.928 \| good	0.336 \| good
2026-10-22T01:00:00.000Z	60 \| moderate	13.854 \| fine	54.308 \| good	34.095 \| good	1.077 \| good	19.541 \| good	0.374 \| good
2026-10-22T02:00:00.000Z	62 \| moderate	15.334 \| fine	63 \| fine	30.911 \| good	0.859 \| good	31.815 \| good	0.399 \| good
2026-10-22T03:00:00.000Z	38 \| good	7.164 \| good	31.728 \| good	11.099 \| good	2.859 \| good	39.847 \| good	0.469 \| good
2026-10-22T04:00:00.000Z	66 \| moderate	16.73 \| fine	68.611 \| fine	19.614 \| good	1.52 \| good	31.701 \| good	0.45 \| good
2026-10-22T05:00:00.000Z	66 \| moderate	17.024 \| fine	68.284 \| fine	12.414 \| good	1.234 \| good	31.315 \| good	0.411 \| good
2026-10-22T06:00:00.000Z	66 \| moderate	17.074 \| fine	69.776 \| fine	8.972 \| good	1.156 \| good	25.858 \| good	0.404 \| good
2026-10-22T07:00:00.000Z	66 \| moderate	17.081 \| fine	69.58 \| fine	4.341 \| good	1.16 \| good	24.43 \| good	0.404 \| good
2026-10-22T08:00:00.000Z	67 \| moderate	18.394 \| fine	74.362 \| fine	3.364 \| good	1.074 \| good	25.411 \| good	0.349 \| good
2026-10-22T09:00:00.000Z	67 \| moderate	18.19 \| fine	71.509 \| fine	2.108 \| good	1.071 \| good	23.222 \| good	0.335 \| good
2026-10-22T10:00:00.000Z	66 \| moderate	16.734 \| fine	62.954 \| fine	3.935 \| good	0.905 \| good	19.232 \| good	0.323 \| good
2026-10-22T11:00:00.000Z	64 \| moderate	16.01 \| fine	60.875 \| fine	5.295 \| good	0.895 \| good	18.783 \| good	0.432 \| good
2026-10-22T12:00:00.000Z	64 \| moderate	16.064 \| fine	62.194 \| fine	2.804 \| good	0.901 \| good	20.073 \| good	0.479 \| good
2026-10-22T13:00:00.000Z	62 \| moderate	15.219 \| fine	59.016 \| fine	2.351 \| good	1.049 \| good	19.908 \| good	0.454 \| good
2026-10-22T14:00:00.000Z	64 \| moderate	16.174 \| fine	59.922 \| fine	3.901 \| good	1.278 \| good	19.356 \| good	0.503 \| good
2026-10-22T15:00:00.000Z	64 \| moderate	16.101 \| fine	61.196 \| fine	7.221 \| good	1.488 \| good	22.191 \| good	0.494 \| good
2026-10-22T16:00:00.000Z	62 \| moderate	14.751 \| fine	59.413 \| fine	13.126 \| good	1.613 \| good	24.78 \| good	0.332 \| good
2026-10-22T17:00:00.000Z	62 \| moderate	14.808 \| fine	59.002 \| fine	25.025 \| good	1.933 \| good	23.661 \| good	0.299 \| good
2026-10-22T18:00:00.000Z	60 \| moderate	13.753 \| fine	53.77 \| good	29.298 \| good	1.585 \| good	24.509 \| good	0.25 \| good
2026-10-22T19:00:00.000Z	60 \| moderate	13.601 \| fine	52.615 \| good	37.461 \| good	2.439 \| good	18.077 \| good	0.221 \| good
2026-10-22T20:00:00.000Z	58 \| moderate	12.959 \| fine	48.808 \| good	40.471 \| good	1.815 \| good	9.74 \| good	0.221 \| good
2026-10-22T21:00:00.000Z	58 \| moderate	12.601 \| fine	47.194 \| good	46.205 \| good	1.771 \| good	6.519 \| good	0.258 \| good
2026-10-22T21:00:00.000Z	62 \| moderate	14.842 \| fine	46.733 \| good	46.353 \| good	1.81 \| good	6.621 \| good	0.259 \| good
2026-10-22T22:00:00.000Z	58 \| moderate	13.477 \| fine	61.042 \| fine	49.071 \| good	1.654 \| good	26.562 \| good	0.298 \| good
2026-10-22T23:00:00.000Z	66 \| moderate	17.402 \| fine	77.483 \| fine	41.762 \| good	1.68 \| good	40.369 \| good	0.384 \| good
2026-10-23T00:00:00.000Z	62 \| moderate	14.977 \| fine	67.097 \| fine	33.375 \| good	1.862 \| good	45.136 \| good	0.444 \| good
2026-10-23T01:00:00.000Z	58 \| moderate	13.191 \| fine	58.689 \| fine	27.809 \| good	1.965 \| good	45.716 \| good	0.451 \| good
2026-10-23T02:00:00.000Z	54 \| moderate	11.407 \| good	50.662 \| good	21.291 \| good	2.083 \| good	46.142 \| good	0.444 \| good
2026-10-23T03:00:00.000Z	54 \| moderate	11.169 \| good	49.69 \| good	18.862 \| good	2.224 \| good	45.846 \| good	0.44 \| good
2026-10-23T04:00:00.000Z	49 \| good	9.353 \| good	41.562 \| good	18.808 \| good	2.331 \| good	45.216 \| good	0.441 \| good
2026-10-23T05:00:00.000Z	44 \| good	8.231 \| good	36.471 \| good	18.288 \| good	2.303 \| good	44.252 \| good	0.44 \| good
2026-10-23T06:00:00.000Z	49 \| good	9.091 \| good	40.408 \| good	16.941 \| good	2.253 \| good	42.978 \| good	0.424 \| good
2026-10-23T07:00:00.000Z	54 \| moderate	11.31 \| good	50.47 \| good	15.457 \| good	2.325 \| good	41.624 \| good	0.408 \| good
2026-10-23T08:00:00.000Z	60 \| moderate	14.474 \| fine	64.222 \| fine	15.422 \| good	2.464 \| good	40.313 \| good	0.396 \| good
2026-10-23T09:00:00.000Z	69 \| moderate	18.854 \| fine	83.321 \| fine	9.011 \| good	2.64 \| good	38.958 \| good	0.386 \| good
2026-10-23T10:00:00.000Z	79 \| moderate	24.166 \| fine	105.408 \| fine	5.161 \| good	2.896 \| good	37.64 \| good	0.377 \| good
2026-10-23T11:00:00.000Z	86 \| moderate	27.816 \| fine	121.257 \| fine	0.739 \| good	3.114 \| good	36.569 \| good	0.374 \| good
2026-10-23T12:00:00.000Z	90 \| moderate	29.938 \| fine	129.565 \| fine	0.374 \| good	3.406 \| good	35.795 \| good	0.386 \| good
2026-10-23T13:00:00.000Z	90 \| moderate	30.079 \| fine	130.038 \| fine	1.287 \| good	3.639 \| good	32.778 \| good	0.421 \| good
2026-10-23T14:00:00.000Z	81 \| moderate	25.455 \| fine	111.32 \| fine	6.118 \| good	3.331 \| good	28.34 \| good	0.416 \| good
2026-10-23T15:00:00.000Z	73 \| moderate	21.046 \| fine	92.004 \| fine	18.27 \| good	3.092 \| good	25.863 \| good	0.389 \| good
2026-10-23T16:00:00.000Z	69 \| moderate	19.172 \| fine	85.062 \| fine	29.132 \| good	2.792 \| good	22.482 \| good	0.328 \| good
2026-10-23T17:00:00.000Z	66 \| moderate	16.917 \| fine	75.464 \| fine	36.986 \| good	2.474 \| good	18.423 \| good	0.282 \| good
2026-10-23T18:00:00.000Z	62 \| moderate	15.337 \| fine	69.003 \| fine	44.346 \| good	2.378 \| good	13.595 \| good	0.246 \| good
2026-10-23T19:00:00.000Z	60 \| moderate	14.433 \| fine	64.806 \| fine	49.672 \| good	2.295 \| good	10.517 \| good	0.23 \| good
2026-10-23T20:00:00.000Z	60 \| moderate	13.584 \| fine	61.26 \| fine	51.622 \| good	2.19 \| good	9.234 \| good	0.222 \| good
2026-10-23T21:00:00.000Z	58 \| moderate	13.298 \| fine	59.326 \| fine	49.909 \| good	2.13 \| good	9.384 \| good	0.219 \| good
2026-10-23T22:00:00.000Z	60 \| moderate	14.135 \| fine	63.184 \| fine	40.777 \| good	2.001 \| good	15.248 \| good	0.242 \| good
2026-10-23T23:00:00.000Z	62 \| moderate	14.587 \| fine	64.976 \| fine	36.063 \| good	1.997 \| good	24.912 \| good	0.279 \| good
2026-10-24T00:00:00.000Z	62 \| moderate	14.915 \| fine	66.342 \| fine	26.416 \| good	2.054 \| good	31.224 \| good	0.294 \| good
2026-10-24T01:00:00.000Z	62 \| moderate	14.744 \| fine	65.98 \| fine	18.552 \| good	2.063 \| good	32.76 \| good	0.282 \| good
2026-10-24T02:00:00.000Z	62 \| moderate	15.296 \| fine	68.298 \| fine	15.738 \| good	2.026 \| good	32.973 \| good	0.271 \| good
2026-10-24T03:00:00.000Z	62 \| moderate	15.329 \| fine	68.3 \| fine	19.785 \| good	1.977 \| good	31.85 \| good	0.263 \| good
2026-10-24T04:00:00.000Z	60 \| moderate	13.683 \| fine	61.169 \| fine	20.088 \| good	1.928 \| good	28.929 \| good	0.256 \| good
2026-10-24T05:00:00.000Z	58 \| moderate	12.863 \| fine	58.225 \| fine	20.016 \| good	1.838 \| good	23.23 \| good	0.249 \| good
2026-10-24T06:00:00.000Z	58 \| moderate	12.542 \| fine	56.664 \| fine	20.026 \| good	1.771 \| good	18.211 \| good	0.241 \| good
2026-10-24T07:00:00.000Z	58 \| moderate	12.606 \| fine	56.958 \| fine	17.513 \| good	1.688 \| good	14.819 \| good	0.234 \| good
2026-10-24T08:00:00.000Z	56 \| moderate	11.822 \| good	52.343 \| good	18.973 \| good	1.616 \| good	12.661 \| good	0.23 \| good
2026-10-24T09:00:00.000Z	56 \| moderate	11.677 \| good	51.554 \| good	15.764 \| good	1.556 \| good	11.546 \| good	0.229 \| good
2026-10-24T10:00:00.000Z	54 \| moderate	10.981 \| good	48.416 \| good	14.639 \| good	1.528 \| good	11.334 \| good	0.229 \| good
2026-10-24T11:00:00.000Z	56 \| moderate	12.018 \| good	53.105 \| good	13.847 \| good	1.55 \| good	12.212 \| good	0.232 \| good
2026-10-24T12:00:00.000Z	60 \| moderate	13.945 \| fine	62.15 \| fine	12.465 \| good	1.632 \| good	16.237 \| good	0.241 \| good
2026-10-24T13:00:00.000Z	62 \| moderate	15.445 \| fine	69.238 \| fine	15.792 \| good	1.719 \| good	17.848 \| good	0.254 \| good
2026-10-24T14:00:00.000Z	67 \| moderate	17.519 \| fine	77.629 \| fine	25.12 \| good	1.765 \| good	16.89 \| good	0.267 \| good
2026-10-24T15:00:00.000Z	62 \| moderate	15.421 \| fine	69.124 \| fine	35.924 \| good	1.825 \| good	15.693 \| good	0.265 \| good
2026-10-24T16:00:00.000Z	60 \| moderate	13.605 \| fine	61.172 \| fine	44.272 \| good	1.856 \| good	14.821 \| good	0.26 \| good
2026-10-24T17:00:00.000Z	56 \| moderate	12.067 \| good	54.167 \| good	45.283 \| good	1.882 \| good	14.111 \| good	0.255 \| good
2026-10-24T18:00:00.000Z	54 \| moderate	11.209 \| good	49.76 \| good	47.785 \| good	1.894 \| good	12.615 \| good	0.246 \| good
2026-10-24T19:00:00.000Z	54 \| moderate	11.239 \| good	49.713 \| good	51.778 \| good	1.845 \| good	10.898 \| good	0.233 \| good
2026-10-24T20:00:00.000Z	54 \| moderate	11.437 \| good	50.364 \| good	53.477 \| good	1.887 \| good	10.417 \| good	0.225 \| good
2026-10-24T21:00:00.000Z	56 \| moderate	12.038 \| good	53.862 \| good	51.647 \| good	1.865 \| good	11.488 \| good	0.224 \| good

Winnetka

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Winnetka, Illinois air quality map: Track AQI near you

0.22ppm

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 09:00:00 on 2026-10-22.

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 03:00:00 on 2026-10-22.

What is the current air quality in Winnetka, Illinois?

The current air quality in Winnetka, Illinois is 62, 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 14.842 μg/m³.

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

The current PM₁₀ concentration at Winnetka, Illinois is 46.733 μg/m³.

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

The current carbon monoxide (CO) concentration at Winnetka, Illinois is 0.259 ppm.

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

The current sulfur dioxide (SO₂) concentration at Winnetka, Illinois is 1.81 ppb.

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

The current ozone (O₃) concentration at Winnetka, Illinois is 46.353 ppm.

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

The current nitrogen dioxide (NO₂) concentration at Winnetka, Illinois is 6.621 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-10-20T22:00:00.000Z	44 \| good	7.677 \| good	31.105 \| good	39.038 \| good	5.319 \| good	8.623 \| good	0.221 \| good
2026-10-20T23:00:00.000Z	41 \| good	7.014 \| good	28.622 \| good	43.795 \| good	2.624 \| good	25.245 \| good	0.236 \| good
2026-10-21T00:00:00.000Z	41 \| good	7.026 \| good	27.394 \| good	43.852 \| good	0.858 \| good	24.844 \| good	0.274 \| good
2026-10-21T01:00:00.000Z	38 \| good	7.49 \| good	29.337 \| good	37.397 \| good	0.682 \| good	30.239 \| good	0.288 \| good
2026-10-21T02:00:00.000Z	49 \| good	8.562 \| good	31.631 \| good	34.464 \| good	0.613 \| good	28.457 \| good	0.303 \| good
2026-10-21T03:00:00.000Z	56 \| moderate	11.613 \| good	51.32 \| good	9.852 \| good	2.582 \| good	35.195 \| good	0.287 \| good
2026-10-21T04:00:00.000Z	58 \| moderate	12.881 \| fine	48.573 \| good	22.983 \| good	0.602 \| good	26.273 \| good	0.324 \| good
2026-10-21T05:00:00.000Z	58 \| moderate	12.908 \| fine	48.446 \| good	12.377 \| good	1.494 \| good	23.964 \| good	0.299 \| good
2026-10-21T06:00:00.000Z	60 \| moderate	13.609 \| fine	50.107 \| good	7.713 \| good	1.92 \| good	22.628 \| good	0.287 \| good
2026-10-21T07:00:00.000Z	58 \| moderate	13.34 \| fine	49.735 \| good	7.139 \| good	1.64 \| good	18.848 \| good	0.302 \| good
2026-10-21T08:00:00.000Z	60 \| moderate	13.853 \| fine	52.185 \| good	3.906 \| good	0.915 \| good	19.151 \| good	0.265 \| good
2026-10-21T09:00:00.000Z	62 \| moderate	14.892 \| fine	56.036 \| fine	6.454 \| good	0.874 \| good	19.627 \| good	0.25 \| good
2026-10-21T10:00:00.000Z	66 \| moderate	16.867 \| fine	64.265 \| fine	4.82 \| good	0.919 \| good	21.295 \| good	0.302 \| good
2026-10-21T11:00:00.000Z	66 \| moderate	16.96 \| fine	64.426 \| fine	3.987 \| good	0.981 \| good	23.589 \| good	0.376 \| good
2026-10-21T12:00:00.000Z	71 \| moderate	20.039 \| fine	75.594 \| fine	4.141 \| good	0.953 \| good	22.257 \| good	0.387 \| good
2026-10-21T13:00:00.000Z	71 \| moderate	19.831 \| fine	77.305 \| fine	2.706 \| good	0.983 \| good	17.471 \| good	0.387 \| good
2026-10-21T14:00:00.000Z	79 \| moderate	23.552 \| fine	92.312 \| fine	3.181 \| good	1.163 \| good	24.655 \| good	0.473 \| good
2026-10-21T15:00:00.000Z	81 \| moderate	24.616 \| fine	105.067 \| fine	5.359 \| good	1.62 \| good	23.175 \| good	0.423 \| good
2026-10-21T16:00:00.000Z	82 \| moderate	25.871 \| fine	99.094 \| fine	8.792 \| good	1.994 \| good	21.366 \| good	0.324 \| good
2026-10-21T17:00:00.000Z	73 \| moderate	20.759 \| fine	83.866 \| fine	13.431 \| good	1.903 \| good	19.041 \| good	0.27 \| good
2026-10-21T18:00:00.000Z	64 \| moderate	15.555 \| fine	66.622 \| fine	20.211 \| good	1.98 \| good	17.351 \| good	0.258 \| good
2026-10-21T19:00:00.000Z	62 \| moderate	15.445 \| fine	65.067 \| fine	28.328 \| good	1.289 \| good	18.12 \| good	0.258 \| good
2026-10-21T20:00:00.000Z	49 \| good	8.889 \| good	37.375 \| good	35.916 \| good	1.291 \| good	15.054 \| good	0.258 \| good
2026-10-21T21:00:00.000Z	49 \| good	8.889 \| good	36.917 \| good	40.596 \| good	1.44 \| good	15.757 \| good	0.258 \| good
2026-10-21T22:00:00.000Z	44 \| good	8.221 \| good	31.506 \| good	43.194 \| good	1.674 \| good	16.821 \| good	0.258 \| good
2026-10-21T23:00:00.000Z	52 \| moderate	9.675 \| good	37.624 \| good	44.735 \| good	2.118 \| good	24.563 \| good	0.273 \| good
2026-10-22T00:00:00.000Z	56 \| moderate	12.117 \| fine	48.762 \| good	39.749 \| good	1.52 \| good	15.928 \| good	0.336 \| good
2026-10-22T01:00:00.000Z	60 \| moderate	13.854 \| fine	54.308 \| good	34.095 \| good	1.077 \| good	19.541 \| good	0.374 \| good
2026-10-22T02:00:00.000Z	62 \| moderate	15.334 \| fine	63 \| fine	30.911 \| good	0.859 \| good	31.815 \| good	0.399 \| good
2026-10-22T03:00:00.000Z	38 \| good	7.164 \| good	31.728 \| good	11.099 \| good	2.859 \| good	39.847 \| good	0.469 \| good
2026-10-22T04:00:00.000Z	66 \| moderate	16.73 \| fine	68.611 \| fine	19.614 \| good	1.52 \| good	31.701 \| good	0.45 \| good
2026-10-22T05:00:00.000Z	66 \| moderate	17.024 \| fine	68.284 \| fine	12.414 \| good	1.234 \| good	31.315 \| good	0.411 \| good
2026-10-22T06:00:00.000Z	66 \| moderate	17.074 \| fine	69.776 \| fine	8.972 \| good	1.156 \| good	25.858 \| good	0.404 \| good
2026-10-22T07:00:00.000Z	66 \| moderate	17.081 \| fine	69.58 \| fine	4.341 \| good	1.16 \| good	24.43 \| good	0.404 \| good
2026-10-22T08:00:00.000Z	67 \| moderate	18.394 \| fine	74.362 \| fine	3.364 \| good	1.074 \| good	25.411 \| good	0.349 \| good
2026-10-22T09:00:00.000Z	67 \| moderate	18.19 \| fine	71.509 \| fine	2.108 \| good	1.071 \| good	23.222 \| good	0.335 \| good
2026-10-22T10:00:00.000Z	66 \| moderate	16.734 \| fine	62.954 \| fine	3.935 \| good	0.905 \| good	19.232 \| good	0.323 \| good
2026-10-22T11:00:00.000Z	64 \| moderate	16.01 \| fine	60.875 \| fine	5.295 \| good	0.895 \| good	18.783 \| good	0.432 \| good
2026-10-22T12:00:00.000Z	64 \| moderate	16.064 \| fine	62.194 \| fine	2.804 \| good	0.901 \| good	20.073 \| good	0.479 \| good
2026-10-22T13:00:00.000Z	62 \| moderate	15.219 \| fine	59.016 \| fine	2.351 \| good	1.049 \| good	19.908 \| good	0.454 \| good
2026-10-22T14:00:00.000Z	64 \| moderate	16.174 \| fine	59.922 \| fine	3.901 \| good	1.278 \| good	19.356 \| good	0.503 \| good
2026-10-22T15:00:00.000Z	64 \| moderate	16.101 \| fine	61.196 \| fine	7.221 \| good	1.488 \| good	22.191 \| good	0.494 \| good
2026-10-22T16:00:00.000Z	62 \| moderate	14.751 \| fine	59.413 \| fine	13.126 \| good	1.613 \| good	24.78 \| good	0.332 \| good
2026-10-22T17:00:00.000Z	62 \| moderate	14.808 \| fine	59.002 \| fine	25.025 \| good	1.933 \| good	23.661 \| good	0.299 \| good
2026-10-22T18:00:00.000Z	60 \| moderate	13.753 \| fine	53.77 \| good	29.298 \| good	1.585 \| good	24.509 \| good	0.25 \| good
2026-10-22T19:00:00.000Z	60 \| moderate	13.601 \| fine	52.615 \| good	37.461 \| good	2.439 \| good	18.077 \| good	0.221 \| good
2026-10-22T20:00:00.000Z	58 \| moderate	12.959 \| fine	48.808 \| good	40.471 \| good	1.815 \| good	9.74 \| good	0.221 \| good
2026-10-22T21:00:00.000Z	58 \| moderate	12.601 \| fine	47.194 \| good	46.205 \| good	1.771 \| good	6.519 \| good	0.258 \| good
2026-10-22T21:00:00.000Z	62 \| moderate	14.842 \| fine	46.733 \| good	46.353 \| good	1.81 \| good	6.621 \| good	0.259 \| good
2026-10-22T22:00:00.000Z	58 \| moderate	13.477 \| fine	61.042 \| fine	49.071 \| good	1.654 \| good	26.562 \| good	0.298 \| good
2026-10-22T23:00:00.000Z	66 \| moderate	17.402 \| fine	77.483 \| fine	41.762 \| good	1.68 \| good	40.369 \| good	0.384 \| good
2026-10-23T00:00:00.000Z	62 \| moderate	14.977 \| fine	67.097 \| fine	33.375 \| good	1.862 \| good	45.136 \| good	0.444 \| good
2026-10-23T01:00:00.000Z	58 \| moderate	13.191 \| fine	58.689 \| fine	27.809 \| good	1.965 \| good	45.716 \| good	0.451 \| good
2026-10-23T02:00:00.000Z	54 \| moderate	11.407 \| good	50.662 \| good	21.291 \| good	2.083 \| good	46.142 \| good	0.444 \| good
2026-10-23T03:00:00.000Z	54 \| moderate	11.169 \| good	49.69 \| good	18.862 \| good	2.224 \| good	45.846 \| good	0.44 \| good
2026-10-23T04:00:00.000Z	49 \| good	9.353 \| good	41.562 \| good	18.808 \| good	2.331 \| good	45.216 \| good	0.441 \| good
2026-10-23T05:00:00.000Z	44 \| good	8.231 \| good	36.471 \| good	18.288 \| good	2.303 \| good	44.252 \| good	0.44 \| good
2026-10-23T06:00:00.000Z	49 \| good	9.091 \| good	40.408 \| good	16.941 \| good	2.253 \| good	42.978 \| good	0.424 \| good
2026-10-23T07:00:00.000Z	54 \| moderate	11.31 \| good	50.47 \| good	15.457 \| good	2.325 \| good	41.624 \| good	0.408 \| good
2026-10-23T08:00:00.000Z	60 \| moderate	14.474 \| fine	64.222 \| fine	15.422 \| good	2.464 \| good	40.313 \| good	0.396 \| good
2026-10-23T09:00:00.000Z	69 \| moderate	18.854 \| fine	83.321 \| fine	9.011 \| good	2.64 \| good	38.958 \| good	0.386 \| good
2026-10-23T10:00:00.000Z	79 \| moderate	24.166 \| fine	105.408 \| fine	5.161 \| good	2.896 \| good	37.64 \| good	0.377 \| good
2026-10-23T11:00:00.000Z	86 \| moderate	27.816 \| fine	121.257 \| fine	0.739 \| good	3.114 \| good	36.569 \| good	0.374 \| good
2026-10-23T12:00:00.000Z	90 \| moderate	29.938 \| fine	129.565 \| fine	0.374 \| good	3.406 \| good	35.795 \| good	0.386 \| good
2026-10-23T13:00:00.000Z	90 \| moderate	30.079 \| fine	130.038 \| fine	1.287 \| good	3.639 \| good	32.778 \| good	0.421 \| good
2026-10-23T14:00:00.000Z	81 \| moderate	25.455 \| fine	111.32 \| fine	6.118 \| good	3.331 \| good	28.34 \| good	0.416 \| good
2026-10-23T15:00:00.000Z	73 \| moderate	21.046 \| fine	92.004 \| fine	18.27 \| good	3.092 \| good	25.863 \| good	0.389 \| good
2026-10-23T16:00:00.000Z	69 \| moderate	19.172 \| fine	85.062 \| fine	29.132 \| good	2.792 \| good	22.482 \| good	0.328 \| good
2026-10-23T17:00:00.000Z	66 \| moderate	16.917 \| fine	75.464 \| fine	36.986 \| good	2.474 \| good	18.423 \| good	0.282 \| good
2026-10-23T18:00:00.000Z	62 \| moderate	15.337 \| fine	69.003 \| fine	44.346 \| good	2.378 \| good	13.595 \| good	0.246 \| good
2026-10-23T19:00:00.000Z	60 \| moderate	14.433 \| fine	64.806 \| fine	49.672 \| good	2.295 \| good	10.517 \| good	0.23 \| good
2026-10-23T20:00:00.000Z	60 \| moderate	13.584 \| fine	61.26 \| fine	51.622 \| good	2.19 \| good	9.234 \| good	0.222 \| good
2026-10-23T21:00:00.000Z	58 \| moderate	13.298 \| fine	59.326 \| fine	49.909 \| good	2.13 \| good	9.384 \| good	0.219 \| good
2026-10-23T22:00:00.000Z	60 \| moderate	14.135 \| fine	63.184 \| fine	40.777 \| good	2.001 \| good	15.248 \| good	0.242 \| good
2026-10-23T23:00:00.000Z	62 \| moderate	14.587 \| fine	64.976 \| fine	36.063 \| good	1.997 \| good	24.912 \| good	0.279 \| good
2026-10-24T00:00:00.000Z	62 \| moderate	14.915 \| fine	66.342 \| fine	26.416 \| good	2.054 \| good	31.224 \| good	0.294 \| good
2026-10-24T01:00:00.000Z	62 \| moderate	14.744 \| fine	65.98 \| fine	18.552 \| good	2.063 \| good	32.76 \| good	0.282 \| good
2026-10-24T02:00:00.000Z	62 \| moderate	15.296 \| fine	68.298 \| fine	15.738 \| good	2.026 \| good	32.973 \| good	0.271 \| good
2026-10-24T03:00:00.000Z	62 \| moderate	15.329 \| fine	68.3 \| fine	19.785 \| good	1.977 \| good	31.85 \| good	0.263 \| good
2026-10-24T04:00:00.000Z	60 \| moderate	13.683 \| fine	61.169 \| fine	20.088 \| good	1.928 \| good	28.929 \| good	0.256 \| good
2026-10-24T05:00:00.000Z	58 \| moderate	12.863 \| fine	58.225 \| fine	20.016 \| good	1.838 \| good	23.23 \| good	0.249 \| good
2026-10-24T06:00:00.000Z	58 \| moderate	12.542 \| fine	56.664 \| fine	20.026 \| good	1.771 \| good	18.211 \| good	0.241 \| good
2026-10-24T07:00:00.000Z	58 \| moderate	12.606 \| fine	56.958 \| fine	17.513 \| good	1.688 \| good	14.819 \| good	0.234 \| good
2026-10-24T08:00:00.000Z	56 \| moderate	11.822 \| good	52.343 \| good	18.973 \| good	1.616 \| good	12.661 \| good	0.23 \| good
2026-10-24T09:00:00.000Z	56 \| moderate	11.677 \| good	51.554 \| good	15.764 \| good	1.556 \| good	11.546 \| good	0.229 \| good
2026-10-24T10:00:00.000Z	54 \| moderate	10.981 \| good	48.416 \| good	14.639 \| good	1.528 \| good	11.334 \| good	0.229 \| good
2026-10-24T11:00:00.000Z	56 \| moderate	12.018 \| good	53.105 \| good	13.847 \| good	1.55 \| good	12.212 \| good	0.232 \| good
2026-10-24T12:00:00.000Z	60 \| moderate	13.945 \| fine	62.15 \| fine	12.465 \| good	1.632 \| good	16.237 \| good	0.241 \| good
2026-10-24T13:00:00.000Z	62 \| moderate	15.445 \| fine	69.238 \| fine	15.792 \| good	1.719 \| good	17.848 \| good	0.254 \| good
2026-10-24T14:00:00.000Z	67 \| moderate	17.519 \| fine	77.629 \| fine	25.12 \| good	1.765 \| good	16.89 \| good	0.267 \| good
2026-10-24T15:00:00.000Z	62 \| moderate	15.421 \| fine	69.124 \| fine	35.924 \| good	1.825 \| good	15.693 \| good	0.265 \| good
2026-10-24T16:00:00.000Z	60 \| moderate	13.605 \| fine	61.172 \| fine	44.272 \| good	1.856 \| good	14.821 \| good	0.26 \| good
2026-10-24T17:00:00.000Z	56 \| moderate	12.067 \| good	54.167 \| good	45.283 \| good	1.882 \| good	14.111 \| good	0.255 \| good
2026-10-24T18:00:00.000Z	54 \| moderate	11.209 \| good	49.76 \| good	47.785 \| good	1.894 \| good	12.615 \| good	0.246 \| good
2026-10-24T19:00:00.000Z	54 \| moderate	11.239 \| good	49.713 \| good	51.778 \| good	1.845 \| good	10.898 \| good	0.233 \| good
2026-10-24T20:00:00.000Z	54 \| moderate	11.437 \| good	50.364 \| good	53.477 \| good	1.887 \| good	10.417 \| good	0.225 \| good
2026-10-24T21:00:00.000Z	56 \| moderate	12.038 \| good	53.862 \| good	51.647 \| good	1.865 \| good	11.488 \| good	0.224 \| 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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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 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?