What is the current level of PM10 in Onalaska, Wisconsin?

Onalaska, Wisconsin currently has a PM10 concentration of 41.984 μg/m3.

What is the current level of sulfur dioxide (SO2) in Onalaska, Wisconsin?

The current sulfur dioxide (SO2) concentration in Onalaska, Wisconsin is 0.568 ppb.

What is the current level of ozone (O3) in Onalaska, Wisconsin?

Onalaska, Wisconsin currently has an ozone (O3) concentration of 35.626 ppm.

What is the current level of nitrogen dioxide (NO2) in Onalaska, Wisconsin?

The current level of nitrogen dioxide (NO2) in Onalaska, Wisconsin is 5.456 ppb.

Current air quality index in Onalaska, Wisconsin today

Q: What is the PM2.5 concentration in Onalaska, Wisconsin right now?

Onalaska, Wisconsin currently has a PM2.5 concentration of 11.041 μg/m3.

Stay updated with real-time air quality in Onalaska, Wisconsin 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

Onalaska, Wisconsin

Last updated: ... (Local time)

Common air pollutants in Onalaska, Wisconsin

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

11.04 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

41.98 μg/m³

155

255

425

605+

Ozone (O₃)

35.63 ppb

201

201+

Sulfur Dioxide (SO₂)

0.57 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

5.46 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.30 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Moderate

Onalaska, Wisconsin

Get Live Pollen Counts

Onalaska, Wisconsin

Scroll To Air Quality Map

Track live Onalaska, Wisconsin air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-10-20T22:00:00.000Z	55 \| moderate	6.351 \| good	63.808 \| fine	35.776 \| good	0.589 \| good	3.5 \| good	0.242 \| good
2026-10-20T23:00:00.000Z	53 \| moderate	8.248 \| good	60.409 \| fine	43.854 \| good	0.555 \| good	4.877 \| good	0.241 \| good
2026-10-21T00:00:00.000Z	36 \| good	5.686 \| good	25.877 \| good	38.859 \| good	0.588 \| good	3.198 \| good	0.519 \| good
2026-10-21T01:00:00.000Z	49 \| good	9.112 \| good	48.245 \| good	32.748 \| good	0.529 \| good	2.597 \| good	0.36 \| good
2026-10-21T02:00:00.000Z	33 \| good	6.003 \| good	34.703 \| good	35.972 \| good	0.496 \| good	4.087 \| good	0.339 \| good
2026-10-21T03:00:00.000Z	62 \| moderate	15.489 \| fine	68.995 \| fine	21.868 \| good	0.604 \| good	2.869 \| good	0.147 \| good
2026-10-21T04:00:00.000Z	49 \| good	9.487 \| good	31.395 \| good	27.287 \| good	0.431 \| good	5.774 \| good	0.221 \| good
2026-10-21T05:00:00.000Z	52 \| moderate	10.152 \| good	55.626 \| fine	20.215 \| good	0.428 \| good	5.455 \| good	0.26 \| good
2026-10-21T06:00:00.000Z	54 \| moderate	10.792 \| good	23.634 \| good	12.694 \| good	0.346 \| good	5.702 \| good	0.2 \| good
2026-10-21T07:00:00.000Z	54 \| moderate	10.707 \| good	31.457 \| good	21.543 \| good	0.366 \| good	6.061 \| good	0.241 \| good
2026-10-21T08:00:00.000Z	56 \| moderate	12.285 \| fine	54.467 \| good	11.864 \| good	0.423 \| good	6.14 \| good	0.22 \| good
2026-10-21T09:00:00.000Z	58 \| moderate	12.941 \| fine	32.214 \| good	20.542 \| good	0.418 \| good	6.892 \| good	0.2 \| good
2026-10-21T10:00:00.000Z	62 \| moderate	14.897 \| fine	46.671 \| good	24.097 \| good	0.371 \| good	6.095 \| good	0.221 \| good
2026-10-21T11:00:00.000Z	58 \| moderate	12.662 \| fine	36.441 \| good	22.374 \| good	0.398 \| good	8.011 \| good	0.241 \| good
2026-10-21T12:00:00.000Z	62 \| moderate	14.654 \| fine	52.829 \| good	17.105 \| good	0.41 \| good	8.948 \| good	0.28 \| good
2026-10-21T13:00:00.000Z	58 \| moderate	12.96 \| fine	50.607 \| good	14.748 \| good	0.41 \| good	8.279 \| good	0.28 \| good
2026-10-21T14:00:00.000Z	75 \| moderate	22.152 \| fine	92.219 \| fine	14.791 \| good	0.467 \| good	8.412 \| good	0.401 \| good
2026-10-21T15:00:00.000Z	82 \| moderate	26.267 \| fine	95.492 \| fine	19.223 \| good	0.584 \| good	5.817 \| good	0.3 \| good
2026-10-21T16:00:00.000Z	87 \| moderate	11.891 \| good	127.288 \| fine	22.15 \| good	0.615 \| good	6.096 \| good	0.281 \| good
2026-10-21T17:00:00.000Z	54 \| moderate	9.536 \| good	61.155 \| fine	26.583 \| good	0.655 \| good	7.708 \| good	0.3 \| good
2026-10-21T18:00:00.000Z	55 \| moderate	9.727 \| good	63.507 \| fine	30.151 \| good	0.814 \| good	5.444 \| good	0.281 \| good
2026-10-21T19:00:00.000Z	49 \| good	8.589 \| good	52.66 \| good	33.636 \| good	0.79 \| good	6.632 \| good	0.281 \| good
2026-10-21T20:00:00.000Z	49 \| good	8.799 \| good	37.78 \| good	38.608 \| good	0.738 \| good	5.632 \| good	0.282 \| good
2026-10-21T21:00:00.000Z	49 \| good	8.699 \| good	37.193 \| good	38.717 \| good	0.695 \| good	3.415 \| good	0.261 \| good
2026-10-21T22:00:00.000Z	52 \| moderate	9.929 \| good	42.4 \| good	37.268 \| good	0.68 \| good	2.654 \| good	0.261 \| good
2026-10-21T23:00:00.000Z	52 \| moderate	10.005 \| good	38.384 \| good	41.215 \| good	0.594 \| good	2.857 \| good	0.282 \| good
2026-10-22T00:00:00.000Z	54 \| moderate	10.605 \| good	43.459 \| good	38.71 \| good	0.361 \| good	6.66 \| good	0.584 \| good
2026-10-22T01:00:00.000Z	54 \| moderate	10.711 \| good	43.93 \| good	38.994 \| good	0.333 \| good	7.638 \| good	0.683 \| good
2026-10-22T02:00:00.000Z	67 \| moderate	17.937 \| fine	76.846 \| fine	30.006 \| good	0.307 \| good	9.25 \| good	0.867 \| good
2026-10-22T03:00:00.000Z	60 \| moderate	14.059 \| fine	62.874 \| fine	19.947 \| good	0.437 \| good	9.277 \| good	0.24 \| good
2026-10-22T04:00:00.000Z	66 \| moderate	16.718 \| fine	44.314 \| good	17.809 \| good	0.231 \| good	8.563 \| good	1.087 \| good
2026-10-22T05:00:00.000Z	67 \| moderate	17.86 \| fine	54.188 \| good	9.19 \| good	0.231 \| good	8.634 \| good	1.024 \| good
2026-10-22T06:00:00.000Z	67 \| moderate	17.971 \| fine	65.633 \| fine	8.6 \| good	0.212 \| good	10.352 \| good	1.041 \| good
2026-10-22T07:00:00.000Z	64 \| moderate	15.642 \| fine	50.183 \| good	3.098 \| good	0.349 \| good	9.242 \| good	0.98 \| good
2026-10-22T08:00:00.000Z	62 \| moderate	15.494 \| fine	60.653 \| fine	4.966 \| good	0.424 \| good	9.501 \| good	0.942 \| good
2026-10-22T09:00:00.000Z	81 \| moderate	24.867 \| fine	67.479 \| fine	11.791 \| good	0.569 \| good	13.285 \| good	0.842 \| good
2026-10-22T10:00:00.000Z	77 \| moderate	23.3 \| fine	76.579 \| fine	17.171 \| good	0.562 \| good	14.136 \| good	0.823 \| good
2026-10-22T11:00:00.000Z	69 \| moderate	19.294 \| fine	56.767 \| fine	5.668 \| good	0.583 \| good	13.854 \| good	0.784 \| good
2026-10-22T12:00:00.000Z	66 \| moderate	16.502 \| fine	75.259 \| fine	9.363 \| good	0.698 \| good	7.856 \| good	0.947 \| good
2026-10-22T13:00:00.000Z	66 \| moderate	16.998 \| fine	56.154 \| fine	6.023 \| good	0.694 \| good	8.317 \| good	1.047 \| good
2026-10-22T14:00:00.000Z	81 \| moderate	24.919 \| fine	96.125 \| fine	11.212 \| good	0.968 \| good	7.934 \| good	0.944 \| good
2026-10-22T15:00:00.000Z	67 \| moderate	18.288 \| fine	58.96 \| fine	14.685 \| good	0.752 \| good	7.069 \| good	0.623 \| good
2026-10-22T16:00:00.000Z	67 \| moderate	18.089 \| fine	58.321 \| fine	23.565 \| good	0.521 \| good	8.195 \| good	0.42 \| good
2026-10-22T17:00:00.000Z	86 \| moderate	27.907 \| fine	61.682 \| fine	25.06 \| good	0.53 \| good	7.48 \| good	0.361 \| good
2026-10-22T18:00:00.000Z	54 \| moderate	9.722 \| good	61.938 \| fine	31.736 \| good	0.558 \| good	4.687 \| good	0.323 \| good
2026-10-22T19:00:00.000Z	64 \| moderate	15.68 \| fine	58.466 \| fine	36.956 \| good	0.756 \| good	7.12 \| good	0.303 \| good
2026-10-22T20:00:00.000Z	58 \| moderate	13.063 \| fine	39.074 \| good	36.571 \| good	0.866 \| good	5.971 \| good	0.283 \| good
2026-10-22T21:00:00.000Z	54 \| moderate	11.041 \| good	41.984 \| good	35.626 \| good	0.568 \| good	5.456 \| good	0.303 \| good
2026-10-22T21:00:00.000Z	54 \| moderate	11.041 \| good	41.984 \| good	35.626 \| good	0.568 \| good	5.456 \| good	0.303 \| good
2026-10-22T00:00:00.000Z	58 \| moderate	13.039 \| fine	58.671 \| fine	30.969 \| good	0.452 \| good	5.513 \| good	0.196 \| good
2026-10-22T01:00:00.000Z	60 \| moderate	13.781 \| fine	62.044 \| fine	20.515 \| good	0.467 \| good	7.473 \| good	0.219 \| good
2026-10-22T02:00:00.000Z	60 \| moderate	13.852 \| fine	62.134 \| fine	16.091 \| good	0.468 \| good	8.822 \| good	0.234 \| good
2026-10-22T03:00:00.000Z	60 \| moderate	13.793 \| fine	62.134 \| fine	15.389 \| good	0.459 \| good	9.652 \| good	0.243 \| good
2026-10-22T04:00:00.000Z	60 \| moderate	13.727 \| fine	61.951 \| fine	14.013 \| good	0.449 \| good	10.145 \| good	0.248 \| good
2026-10-22T05:00:00.000Z	60 \| moderate	13.691 \| fine	62.109 \| fine	11.404 \| good	0.427 \| good	10.35 \| good	0.25 \| good
2026-10-22T06:00:00.000Z	60 \| moderate	13.659 \| fine	61.047 \| fine	12.074 \| good	0.394 \| good	10.123 \| good	0.246 \| good
2026-10-22T07:00:00.000Z	60 \| moderate	13.672 \| fine	61.09 \| fine	5.507 \| good	0.366 \| good	9.916 \| good	0.242 \| good
2026-10-22T08:00:00.000Z	60 \| moderate	13.801 \| fine	62.17 \| fine	9.202 \| good	0.346 \| good	9.998 \| good	0.241 \| good
2026-10-22T09:00:00.000Z	60 \| moderate	14.047 \| fine	63.09 \| fine	11.651 \| good	0.334 \| good	10.315 \| good	0.241 \| good
2026-10-22T10:00:00.000Z	60 \| moderate	14.28 \| fine	64.152 \| fine	12.922 \| good	0.324 \| good	10.742 \| good	0.244 \| good
2026-10-22T11:00:00.000Z	62 \| moderate	14.627 \| fine	65.09 \| fine	11.005 \| good	0.317 \| good	11.134 \| good	0.246 \| good
2026-10-22T12:00:00.000Z	62 \| moderate	15.035 \| fine	66.996 \| fine	12.639 \| good	0.317 \| good	11.618 \| good	0.251 \| good
2026-10-22T13:00:00.000Z	62 \| moderate	15.187 \| fine	68.109 \| fine	13.258 \| good	0.337 \| good	10.51 \| good	0.265 \| good
2026-10-22T14:00:00.000Z	60 \| moderate	13.676 \| fine	61.09 \| fine	14.483 \| good	0.299 \| good	7.304 \| good	0.266 \| good
2026-10-22T15:00:00.000Z	58 \| moderate	12.596 \| fine	56.939 \| fine	21.196 \| good	0.29 \| good	4.97 \| good	0.223 \| good
2026-10-22T16:00:00.000Z	56 \| moderate	11.995 \| good	53.876 \| good	26.761 \| good	0.307 \| good	3.111 \| good	0.181 \| good
2026-10-22T17:00:00.000Z	56 \| moderate	11.567 \| good	50.936 \| good	29.127 \| good	0.321 \| good	1.603 \| good	0.151 \| good
2026-10-22T18:00:00.000Z	54 \| moderate	11.225 \| good	49.857 \| good	32.887 \| good	0.333 \| good	0.785 \| good	0.135 \| good
2026-10-22T19:00:00.000Z	54 \| moderate	11.002 \| good	48.381 \| good	37.257 \| good	0.344 \| good	0.537 \| good	0.129 \| good
2026-10-22T20:00:00.000Z	54 \| moderate	10.931 \| good	48.274 \| good	36.475 \| good	0.342 \| good	0.496 \| good	0.126 \| good
2026-10-22T21:00:00.000Z	54 \| moderate	11.055 \| good	48.95 \| good	35.989 \| good	0.327 \| good	0.572 \| good	0.125 \| good
2026-10-22T22:00:00.000Z	56 \| moderate	11.666 \| good	51.311 \| good	35.597 \| good	0.305 \| good	1.111 \| good	0.13 \| good
2026-10-22T23:00:00.000Z	58 \| moderate	12.553 \| fine	56.688 \| fine	29.45 \| good	0.298 \| good	2.635 \| good	0.146 \| good
2026-10-23T00:00:00.000Z	58 \| moderate	13.191 \| fine	59.49 \| fine	26.337 \| good	0.292 \| good	3.71 \| good	0.157 \| good
2026-10-23T01:00:00.000Z	58 \| moderate	13.466 \| fine	60.752 \| fine	26.575 \| good	0.284 \| good	3.503 \| good	0.155 \| good
2026-10-23T02:00:00.000Z	58 \| moderate	13.481 \| fine	60.752 \| fine	25.859 \| good	0.277 \| good	3.175 \| good	0.151 \| good
2026-10-23T03:00:00.000Z	58 \| moderate	13.351 \| fine	60.71 \| fine	21.037 \| good	0.27 \| good	2.899 \| good	0.146 \| good
2026-10-23T04:00:00.000Z	58 \| moderate	13.17 \| fine	59.061 \| fine	10.522 \| good	0.264 \| good	2.692 \| good	0.143 \| good
2026-10-23T05:00:00.000Z	58 \| moderate	12.978 \| fine	58.71 \| fine	10.809 \| good	0.261 \| good	2.539 \| good	0.141 \| good
2026-10-23T06:00:00.000Z	58 \| moderate	12.887 \| fine	57.583 \| fine	17.446 \| good	0.261 \| good	2.443 \| good	0.14 \| good
2026-10-23T07:00:00.000Z	58 \| moderate	13.074 \| fine	59.058 \| fine	17.873 \| good	0.269 \| good	2.424 \| good	0.14 \| good
2026-10-23T08:00:00.000Z	60 \| moderate	13.585 \| fine	61.107 \| fine	14.62 \| good	0.284 \| good	2.46 \| good	0.142 \| good
2026-10-23T09:00:00.000Z	60 \| moderate	14.258 \| fine	63.615 \| fine	18.901 \| good	0.306 \| good	2.505 \| good	0.144 \| good
2026-10-23T10:00:00.000Z	62 \| moderate	15.019 \| fine	67.201 \| fine	18.118 \| good	0.333 \| good	2.547 \| good	0.147 \| good
2026-10-23T11:00:00.000Z	64 \| moderate	15.958 \| fine	71.058 \| fine	18.892 \| good	0.361 \| good	2.605 \| good	0.151 \| good
2026-10-23T12:00:00.000Z	66 \| moderate	17.109 \| fine	76.545 \| fine	16.858 \| good	0.391 \| good	2.785 \| good	0.157 \| good
2026-10-23T13:00:00.000Z	67 \| moderate	17.503 \| fine	77.386 \| fine	18.172 \| good	0.421 \| good	3.238 \| good	0.164 \| good
2026-10-23T14:00:00.000Z	62 \| moderate	15.454 \| fine	68.95 \| fine	21.356 \| good	0.438 \| good	3.062 \| good	0.172 \| good
2026-10-23T15:00:00.000Z	62 \| moderate	14.868 \| fine	66.796 \| fine	30.174 \| good	0.509 \| good	2.548 \| good	0.173 \| good
2026-10-23T16:00:00.000Z	64 \| moderate	15.722 \| fine	69.719 \| fine	37.335 \| good	0.639 \| good	1.962 \| good	0.172 \| good
2026-10-23T17:00:00.000Z	64 \| moderate	15.978 \| fine	71.133 \| fine	37.149 \| good	0.738 \| good	1.329 \| good	0.167 \| good
2026-10-23T18:00:00.000Z	64 \| moderate	15.565 \| fine	69.201 \| fine	36.528 \| good	0.709 \| good	0.824 \| good	0.159 \| good
2026-10-23T19:00:00.000Z	62 \| moderate	15.129 \| fine	67.652 \| fine	39.387 \| good	0.677 \| good	0.594 \| good	0.153 \| good
2026-10-23T20:00:00.000Z	62 \| moderate	15.233 \| fine	67.823 \| fine	37.347 \| good	0.681 \| good	0.557 \| good	0.151 \| good
2026-10-23T21:00:00.000Z	64 \| moderate	16.371 \| fine	72.9 \| fine	43.943 \| good	0.701 \| good	0.605 \| good	0.152 \| good
2026-10-23T22:00:00.000Z	67 \| moderate	18.011 \| fine	79.615 \| fine	45.444 \| good	0.716 \| good	0.825 \| good	0.154 \| good
2026-10-23T23:00:00.000Z	71 \| moderate	19.548 \| fine	86.824 \| fine	42.844 \| good	0.726 \| good	1.201 \| good	0.159 \| good

Onalaska

Empower business decisions with accurate air quality data

Real-time air quality map: Monitor AQI near Onalaska, Wisconsin

0.23ppm

How accurate is Wisconsin, USA air quality data?

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

Source: Ambee Data Sources

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Frequently asked questions

How frequently does the air quality data for Onalaska, Wisconsin get updated?

Air quality updates for Onalaska, Wisconsin are available every hour.

What time in the past 24 hours saw the poorest air quality in Onalaska, Wisconsin?

Onalaska, Wisconsin experienced its worst air quality at 05:00:00, 2026-10-22.

When was air quality in Onalaska, Wisconsin the best over the past 24 hours?

The best air quality in Onalaska, Wisconsin was observed at 09:00:00 on 2026-10-21.

What is the air quality in Onalaska, Wisconsin right now?

The air quality in Onalaska, Wisconsin right now is Moderate, with an AQI of 54.

What pollutant is most frequently found in Onalaska, Wisconsin?

In Onalaska, Wisconsin, PM2.5 is the most frequently found pollutant.

What can I do if the air quality in Onalaska, Wisconsin is poor?

When air quality in Onalaska, Wisconsin is compromised, staying indoors and wearing a mask can reduce health risks.

What is the PM_2.5 concentration in Onalaska, Wisconsin right now?

Onalaska, Wisconsin currently has a PM_2.5 concentration of 11.041 μg/m³.

What is the current level of PM₁₀ in Onalaska, Wisconsin?

Onalaska, Wisconsin currently has a PM₁₀ concentration of 41.984 μg/m³.

What is the current level of carbon monoxide (CO) in Onalaska, Wisconsin?

The current carbon monoxide (CO) level in Onalaska, Wisconsin is 0.303 ppm.

What is the current level of sulfur dioxide (SO₂) in Onalaska, Wisconsin?

The current sulfur dioxide (SO₂) concentration in Onalaska, Wisconsin is 0.568 ppb.

What is the current level of ozone (O₃) in Onalaska, Wisconsin?

Onalaska, Wisconsin currently has an ozone (O₃) concentration of 35.626 ppm.

What is the current level of nitrogen dioxide (NO₂) in Onalaska, Wisconsin?

The current level of nitrogen dioxide (NO₂) in Onalaska, Wisconsin is 5.456 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-10-20T22:00:00.000Z	55 \| moderate	6.351 \| good	63.808 \| fine	35.776 \| good	0.589 \| good	3.5 \| good	0.242 \| good
2026-10-20T23:00:00.000Z	53 \| moderate	8.248 \| good	60.409 \| fine	43.854 \| good	0.555 \| good	4.877 \| good	0.241 \| good
2026-10-21T00:00:00.000Z	36 \| good	5.686 \| good	25.877 \| good	38.859 \| good	0.588 \| good	3.198 \| good	0.519 \| good
2026-10-21T01:00:00.000Z	49 \| good	9.112 \| good	48.245 \| good	32.748 \| good	0.529 \| good	2.597 \| good	0.36 \| good
2026-10-21T02:00:00.000Z	33 \| good	6.003 \| good	34.703 \| good	35.972 \| good	0.496 \| good	4.087 \| good	0.339 \| good
2026-10-21T03:00:00.000Z	62 \| moderate	15.489 \| fine	68.995 \| fine	21.868 \| good	0.604 \| good	2.869 \| good	0.147 \| good
2026-10-21T04:00:00.000Z	49 \| good	9.487 \| good	31.395 \| good	27.287 \| good	0.431 \| good	5.774 \| good	0.221 \| good
2026-10-21T05:00:00.000Z	52 \| moderate	10.152 \| good	55.626 \| fine	20.215 \| good	0.428 \| good	5.455 \| good	0.26 \| good
2026-10-21T06:00:00.000Z	54 \| moderate	10.792 \| good	23.634 \| good	12.694 \| good	0.346 \| good	5.702 \| good	0.2 \| good
2026-10-21T07:00:00.000Z	54 \| moderate	10.707 \| good	31.457 \| good	21.543 \| good	0.366 \| good	6.061 \| good	0.241 \| good
2026-10-21T08:00:00.000Z	56 \| moderate	12.285 \| fine	54.467 \| good	11.864 \| good	0.423 \| good	6.14 \| good	0.22 \| good
2026-10-21T09:00:00.000Z	58 \| moderate	12.941 \| fine	32.214 \| good	20.542 \| good	0.418 \| good	6.892 \| good	0.2 \| good
2026-10-21T10:00:00.000Z	62 \| moderate	14.897 \| fine	46.671 \| good	24.097 \| good	0.371 \| good	6.095 \| good	0.221 \| good
2026-10-21T11:00:00.000Z	58 \| moderate	12.662 \| fine	36.441 \| good	22.374 \| good	0.398 \| good	8.011 \| good	0.241 \| good
2026-10-21T12:00:00.000Z	62 \| moderate	14.654 \| fine	52.829 \| good	17.105 \| good	0.41 \| good	8.948 \| good	0.28 \| good
2026-10-21T13:00:00.000Z	58 \| moderate	12.96 \| fine	50.607 \| good	14.748 \| good	0.41 \| good	8.279 \| good	0.28 \| good
2026-10-21T14:00:00.000Z	75 \| moderate	22.152 \| fine	92.219 \| fine	14.791 \| good	0.467 \| good	8.412 \| good	0.401 \| good
2026-10-21T15:00:00.000Z	82 \| moderate	26.267 \| fine	95.492 \| fine	19.223 \| good	0.584 \| good	5.817 \| good	0.3 \| good
2026-10-21T16:00:00.000Z	87 \| moderate	11.891 \| good	127.288 \| fine	22.15 \| good	0.615 \| good	6.096 \| good	0.281 \| good
2026-10-21T17:00:00.000Z	54 \| moderate	9.536 \| good	61.155 \| fine	26.583 \| good	0.655 \| good	7.708 \| good	0.3 \| good
2026-10-21T18:00:00.000Z	55 \| moderate	9.727 \| good	63.507 \| fine	30.151 \| good	0.814 \| good	5.444 \| good	0.281 \| good
2026-10-21T19:00:00.000Z	49 \| good	8.589 \| good	52.66 \| good	33.636 \| good	0.79 \| good	6.632 \| good	0.281 \| good
2026-10-21T20:00:00.000Z	49 \| good	8.799 \| good	37.78 \| good	38.608 \| good	0.738 \| good	5.632 \| good	0.282 \| good
2026-10-21T21:00:00.000Z	49 \| good	8.699 \| good	37.193 \| good	38.717 \| good	0.695 \| good	3.415 \| good	0.261 \| good
2026-10-21T22:00:00.000Z	52 \| moderate	9.929 \| good	42.4 \| good	37.268 \| good	0.68 \| good	2.654 \| good	0.261 \| good
2026-10-21T23:00:00.000Z	52 \| moderate	10.005 \| good	38.384 \| good	41.215 \| good	0.594 \| good	2.857 \| good	0.282 \| good
2026-10-22T00:00:00.000Z	54 \| moderate	10.605 \| good	43.459 \| good	38.71 \| good	0.361 \| good	6.66 \| good	0.584 \| good
2026-10-22T01:00:00.000Z	54 \| moderate	10.711 \| good	43.93 \| good	38.994 \| good	0.333 \| good	7.638 \| good	0.683 \| good
2026-10-22T02:00:00.000Z	67 \| moderate	17.937 \| fine	76.846 \| fine	30.006 \| good	0.307 \| good	9.25 \| good	0.867 \| good
2026-10-22T03:00:00.000Z	60 \| moderate	14.059 \| fine	62.874 \| fine	19.947 \| good	0.437 \| good	9.277 \| good	0.24 \| good
2026-10-22T04:00:00.000Z	66 \| moderate	16.718 \| fine	44.314 \| good	17.809 \| good	0.231 \| good	8.563 \| good	1.087 \| good
2026-10-22T05:00:00.000Z	67 \| moderate	17.86 \| fine	54.188 \| good	9.19 \| good	0.231 \| good	8.634 \| good	1.024 \| good
2026-10-22T06:00:00.000Z	67 \| moderate	17.971 \| fine	65.633 \| fine	8.6 \| good	0.212 \| good	10.352 \| good	1.041 \| good
2026-10-22T07:00:00.000Z	64 \| moderate	15.642 \| fine	50.183 \| good	3.098 \| good	0.349 \| good	9.242 \| good	0.98 \| good
2026-10-22T08:00:00.000Z	62 \| moderate	15.494 \| fine	60.653 \| fine	4.966 \| good	0.424 \| good	9.501 \| good	0.942 \| good
2026-10-22T09:00:00.000Z	81 \| moderate	24.867 \| fine	67.479 \| fine	11.791 \| good	0.569 \| good	13.285 \| good	0.842 \| good
2026-10-22T10:00:00.000Z	77 \| moderate	23.3 \| fine	76.579 \| fine	17.171 \| good	0.562 \| good	14.136 \| good	0.823 \| good
2026-10-22T11:00:00.000Z	69 \| moderate	19.294 \| fine	56.767 \| fine	5.668 \| good	0.583 \| good	13.854 \| good	0.784 \| good
2026-10-22T12:00:00.000Z	66 \| moderate	16.502 \| fine	75.259 \| fine	9.363 \| good	0.698 \| good	7.856 \| good	0.947 \| good
2026-10-22T13:00:00.000Z	66 \| moderate	16.998 \| fine	56.154 \| fine	6.023 \| good	0.694 \| good	8.317 \| good	1.047 \| good
2026-10-22T14:00:00.000Z	81 \| moderate	24.919 \| fine	96.125 \| fine	11.212 \| good	0.968 \| good	7.934 \| good	0.944 \| good
2026-10-22T15:00:00.000Z	67 \| moderate	18.288 \| fine	58.96 \| fine	14.685 \| good	0.752 \| good	7.069 \| good	0.623 \| good
2026-10-22T16:00:00.000Z	67 \| moderate	18.089 \| fine	58.321 \| fine	23.565 \| good	0.521 \| good	8.195 \| good	0.42 \| good
2026-10-22T17:00:00.000Z	86 \| moderate	27.907 \| fine	61.682 \| fine	25.06 \| good	0.53 \| good	7.48 \| good	0.361 \| good
2026-10-22T18:00:00.000Z	54 \| moderate	9.722 \| good	61.938 \| fine	31.736 \| good	0.558 \| good	4.687 \| good	0.323 \| good
2026-10-22T19:00:00.000Z	64 \| moderate	15.68 \| fine	58.466 \| fine	36.956 \| good	0.756 \| good	7.12 \| good	0.303 \| good
2026-10-22T20:00:00.000Z	58 \| moderate	13.063 \| fine	39.074 \| good	36.571 \| good	0.866 \| good	5.971 \| good	0.283 \| good
2026-10-22T21:00:00.000Z	54 \| moderate	11.041 \| good	41.984 \| good	35.626 \| good	0.568 \| good	5.456 \| good	0.303 \| good
2026-10-22T21:00:00.000Z	54 \| moderate	11.041 \| good	41.984 \| good	35.626 \| good	0.568 \| good	5.456 \| good	0.303 \| good
2026-10-22T00:00:00.000Z	58 \| moderate	13.039 \| fine	58.671 \| fine	30.969 \| good	0.452 \| good	5.513 \| good	0.196 \| good
2026-10-22T01:00:00.000Z	60 \| moderate	13.781 \| fine	62.044 \| fine	20.515 \| good	0.467 \| good	7.473 \| good	0.219 \| good
2026-10-22T02:00:00.000Z	60 \| moderate	13.852 \| fine	62.134 \| fine	16.091 \| good	0.468 \| good	8.822 \| good	0.234 \| good
2026-10-22T03:00:00.000Z	60 \| moderate	13.793 \| fine	62.134 \| fine	15.389 \| good	0.459 \| good	9.652 \| good	0.243 \| good
2026-10-22T04:00:00.000Z	60 \| moderate	13.727 \| fine	61.951 \| fine	14.013 \| good	0.449 \| good	10.145 \| good	0.248 \| good
2026-10-22T05:00:00.000Z	60 \| moderate	13.691 \| fine	62.109 \| fine	11.404 \| good	0.427 \| good	10.35 \| good	0.25 \| good
2026-10-22T06:00:00.000Z	60 \| moderate	13.659 \| fine	61.047 \| fine	12.074 \| good	0.394 \| good	10.123 \| good	0.246 \| good
2026-10-22T07:00:00.000Z	60 \| moderate	13.672 \| fine	61.09 \| fine	5.507 \| good	0.366 \| good	9.916 \| good	0.242 \| good
2026-10-22T08:00:00.000Z	60 \| moderate	13.801 \| fine	62.17 \| fine	9.202 \| good	0.346 \| good	9.998 \| good	0.241 \| good
2026-10-22T09:00:00.000Z	60 \| moderate	14.047 \| fine	63.09 \| fine	11.651 \| good	0.334 \| good	10.315 \| good	0.241 \| good
2026-10-22T10:00:00.000Z	60 \| moderate	14.28 \| fine	64.152 \| fine	12.922 \| good	0.324 \| good	10.742 \| good	0.244 \| good
2026-10-22T11:00:00.000Z	62 \| moderate	14.627 \| fine	65.09 \| fine	11.005 \| good	0.317 \| good	11.134 \| good	0.246 \| good
2026-10-22T12:00:00.000Z	62 \| moderate	15.035 \| fine	66.996 \| fine	12.639 \| good	0.317 \| good	11.618 \| good	0.251 \| good
2026-10-22T13:00:00.000Z	62 \| moderate	15.187 \| fine	68.109 \| fine	13.258 \| good	0.337 \| good	10.51 \| good	0.265 \| good
2026-10-22T14:00:00.000Z	60 \| moderate	13.676 \| fine	61.09 \| fine	14.483 \| good	0.299 \| good	7.304 \| good	0.266 \| good
2026-10-22T15:00:00.000Z	58 \| moderate	12.596 \| fine	56.939 \| fine	21.196 \| good	0.29 \| good	4.97 \| good	0.223 \| good
2026-10-22T16:00:00.000Z	56 \| moderate	11.995 \| good	53.876 \| good	26.761 \| good	0.307 \| good	3.111 \| good	0.181 \| good
2026-10-22T17:00:00.000Z	56 \| moderate	11.567 \| good	50.936 \| good	29.127 \| good	0.321 \| good	1.603 \| good	0.151 \| good
2026-10-22T18:00:00.000Z	54 \| moderate	11.225 \| good	49.857 \| good	32.887 \| good	0.333 \| good	0.785 \| good	0.135 \| good
2026-10-22T19:00:00.000Z	54 \| moderate	11.002 \| good	48.381 \| good	37.257 \| good	0.344 \| good	0.537 \| good	0.129 \| good
2026-10-22T20:00:00.000Z	54 \| moderate	10.931 \| good	48.274 \| good	36.475 \| good	0.342 \| good	0.496 \| good	0.126 \| good
2026-10-22T21:00:00.000Z	54 \| moderate	11.055 \| good	48.95 \| good	35.989 \| good	0.327 \| good	0.572 \| good	0.125 \| good
2026-10-22T22:00:00.000Z	56 \| moderate	11.666 \| good	51.311 \| good	35.597 \| good	0.305 \| good	1.111 \| good	0.13 \| good
2026-10-22T23:00:00.000Z	58 \| moderate	12.553 \| fine	56.688 \| fine	29.45 \| good	0.298 \| good	2.635 \| good	0.146 \| good
2026-10-23T00:00:00.000Z	58 \| moderate	13.191 \| fine	59.49 \| fine	26.337 \| good	0.292 \| good	3.71 \| good	0.157 \| good
2026-10-23T01:00:00.000Z	58 \| moderate	13.466 \| fine	60.752 \| fine	26.575 \| good	0.284 \| good	3.503 \| good	0.155 \| good
2026-10-23T02:00:00.000Z	58 \| moderate	13.481 \| fine	60.752 \| fine	25.859 \| good	0.277 \| good	3.175 \| good	0.151 \| good
2026-10-23T03:00:00.000Z	58 \| moderate	13.351 \| fine	60.71 \| fine	21.037 \| good	0.27 \| good	2.899 \| good	0.146 \| good
2026-10-23T04:00:00.000Z	58 \| moderate	13.17 \| fine	59.061 \| fine	10.522 \| good	0.264 \| good	2.692 \| good	0.143 \| good
2026-10-23T05:00:00.000Z	58 \| moderate	12.978 \| fine	58.71 \| fine	10.809 \| good	0.261 \| good	2.539 \| good	0.141 \| good
2026-10-23T06:00:00.000Z	58 \| moderate	12.887 \| fine	57.583 \| fine	17.446 \| good	0.261 \| good	2.443 \| good	0.14 \| good
2026-10-23T07:00:00.000Z	58 \| moderate	13.074 \| fine	59.058 \| fine	17.873 \| good	0.269 \| good	2.424 \| good	0.14 \| good
2026-10-23T08:00:00.000Z	60 \| moderate	13.585 \| fine	61.107 \| fine	14.62 \| good	0.284 \| good	2.46 \| good	0.142 \| good
2026-10-23T09:00:00.000Z	60 \| moderate	14.258 \| fine	63.615 \| fine	18.901 \| good	0.306 \| good	2.505 \| good	0.144 \| good
2026-10-23T10:00:00.000Z	62 \| moderate	15.019 \| fine	67.201 \| fine	18.118 \| good	0.333 \| good	2.547 \| good	0.147 \| good
2026-10-23T11:00:00.000Z	64 \| moderate	15.958 \| fine	71.058 \| fine	18.892 \| good	0.361 \| good	2.605 \| good	0.151 \| good
2026-10-23T12:00:00.000Z	66 \| moderate	17.109 \| fine	76.545 \| fine	16.858 \| good	0.391 \| good	2.785 \| good	0.157 \| good
2026-10-23T13:00:00.000Z	67 \| moderate	17.503 \| fine	77.386 \| fine	18.172 \| good	0.421 \| good	3.238 \| good	0.164 \| good
2026-10-23T14:00:00.000Z	62 \| moderate	15.454 \| fine	68.95 \| fine	21.356 \| good	0.438 \| good	3.062 \| good	0.172 \| good
2026-10-23T15:00:00.000Z	62 \| moderate	14.868 \| fine	66.796 \| fine	30.174 \| good	0.509 \| good	2.548 \| good	0.173 \| good
2026-10-23T16:00:00.000Z	64 \| moderate	15.722 \| fine	69.719 \| fine	37.335 \| good	0.639 \| good	1.962 \| good	0.172 \| good
2026-10-23T17:00:00.000Z	64 \| moderate	15.978 \| fine	71.133 \| fine	37.149 \| good	0.738 \| good	1.329 \| good	0.167 \| good
2026-10-23T18:00:00.000Z	64 \| moderate	15.565 \| fine	69.201 \| fine	36.528 \| good	0.709 \| good	0.824 \| good	0.159 \| good
2026-10-23T19:00:00.000Z	62 \| moderate	15.129 \| fine	67.652 \| fine	39.387 \| good	0.677 \| good	0.594 \| good	0.153 \| good
2026-10-23T20:00:00.000Z	62 \| moderate	15.233 \| fine	67.823 \| fine	37.347 \| good	0.681 \| good	0.557 \| good	0.151 \| good
2026-10-23T21:00:00.000Z	64 \| moderate	16.371 \| fine	72.9 \| fine	43.943 \| good	0.701 \| good	0.605 \| good	0.152 \| good
2026-10-23T22:00:00.000Z	67 \| moderate	18.011 \| fine	79.615 \| fine	45.444 \| good	0.716 \| good	0.825 \| good	0.154 \| good
2026-10-23T23:00:00.000Z	71 \| moderate	19.548 \| fine	86.824 \| fine	42.844 \| good	0.726 \| good	1.201 \| good	0.159 \| good

Current air quality index in Onalaska, Wisconsin today

Common air pollutants in Onalaska, Wisconsin

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

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Real-time air quality map: Monitor AQI near Onalaska, Wisconsin

Air quality in nearby cities

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Frequently asked questions

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What is the current level of sulfur dioxide (SO2) in Onalaska, Wisconsin?

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Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

What is the PM_2.5 concentration in Onalaska, Wisconsin right now?

What is the current level of PM₁₀ in Onalaska, Wisconsin?

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What is the current level of ozone (O₃) in Onalaska, Wisconsin?

What is the current level of nitrogen dioxide (NO₂) in Onalaska, Wisconsin?