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

Onalaska, Wisconsin currently has a PM10 concentration of 18.901 μg/m3.

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

The current sulfur dioxide (SO2) concentration in Onalaska, Wisconsin is 0.774 ppb.

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

Onalaska, Wisconsin currently has an ozone (O3) concentration of 37.629 ppm.

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

The current level of nitrogen dioxide (NO2) in Onalaska, Wisconsin is 2.74 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 4.27 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)

Good

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)

4.27 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

18.90 μg/m³

155

255

425

605+

Ozone (O₃)

37.63 ppb

201

201+

Sulfur Dioxide (SO₂)

0.77 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

2.74 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.20 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

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
2026-07-22T00:00:00.000Z	60 \| moderate	14.2 \| fine	56.945 \| fine	41.354 \| good	0.606 \| good	2.029 \| good	0.262 \| good
2026-07-22T01:00:00.000Z	60 \| moderate	14.336 \| fine	37.682 \| good	36.692 \| good	0.591 \| good	2.119 \| good	0.242 \| good
2026-07-22T02:00:00.000Z	49 \| good	8.856 \| good	36.06 \| good	36.496 \| good	0.644 \| good	3.051 \| good	0.283 \| good
2026-07-22T03:00:00.000Z	38 \| good	7.154 \| good	27.172 \| good	35.316 \| good	0.602 \| good	2.722 \| good	0.224 \| good
2026-07-22T04:00:00.000Z	33 \| good	6.124 \| good	16.608 \| good	31.096 \| good	0.583 \| good	2.506 \| good	0.183 \| good
2026-07-22T05:00:00.000Z	45 \| good	8.031 \| good	48.885 \| good	28.714 \| good	0.56 \| good	2.392 \| good	0.183 \| good
2026-07-22T06:00:00.000Z	50 \| good	8.943 \| good	53.835 \| good	27.728 \| good	0.519 \| good	2.416 \| good	0.223 \| good
2026-07-22T07:00:00.000Z	49 \| good	8.942 \| good	41.071 \| good	25.876 \| good	0.54 \| good	2.5 \| good	0.201 \| good
2026-07-22T08:00:00.000Z	38 \| good	5.59 \| good	40.504 \| good	23.427 \| good	0.558 \| good	4.277 \| good	0.201 \| good
2026-07-22T09:00:00.000Z	27 \| good	5.495 \| good	25.014 \| good	21.215 \| good	0.448 \| good	3.523 \| good	0.201 \| good
2026-07-22T10:00:00.000Z	19 \| good	2.833 \| good	11.502 \| good	20.204 \| good	0.481 \| good	4.872 \| good	0.201 \| good
2026-07-22T11:00:00.000Z	38 \| good	7.336 \| good	34.268 \| good	19.227 \| good	0.603 \| good	6.242 \| good	0.237 \| good
2026-07-22T12:00:00.000Z	33 \| good	6.217 \| good	22.731 \| good	14.227 \| good	0.581 \| good	6.122 \| good	0.254 \| good
2026-07-22T13:00:00.000Z	27 \| good	4.699 \| good	18.211 \| good	15.147 \| good	0.581 \| good	8.734 \| good	0.32 \| good
2026-07-22T14:00:00.000Z	19 \| good	2.818 \| good	12.528 \| good	20.731 \| good	0.681 \| good	10.486 \| good	0.283 \| good
2026-07-22T15:00:00.000Z	22 \| good	2.727 \| good	9.082 \| good	23.903 \| good	0.647 \| good	6.755 \| good	0.224 \| good
2026-07-22T16:00:00.000Z	25 \| good	3.358 \| good	14.197 \| good	26.842 \| good	0.491 \| good	5.431 \| good	0.224 \| good
2026-07-22T17:00:00.000Z	28 \| good	3 \| good	12.796 \| good	30.21 \| good	0.664 \| good	4.569 \| good	0.224 \| good
2026-07-22T18:00:00.000Z	29 \| good	3.001 \| good	11.955 \| good	31.239 \| good	0.626 \| good	4.49 \| good	0.224 \| good
2026-07-22T19:00:00.000Z	33 \| good	3.194 \| good	10.949 \| good	35.684 \| good	0.606 \| good	4.738 \| good	0.246 \| good
2026-07-22T20:00:00.000Z	33 \| good	3.311 \| good	15.924 \| good	36.352 \| good	0.606 \| good	4.88 \| good	0.21 \| good
2026-07-22T21:00:00.000Z	35 \| good	3.378 \| good	21.573 \| good	38.002 \| good	0.623 \| good	4.885 \| good	0.226 \| good
2026-07-22T22:00:00.000Z	33 \| good	3.46 \| good	15.71 \| good	36.041 \| good	0.602 \| good	5.864 \| good	0.248 \| good
2026-07-22T23:00:00.000Z	34 \| good	3.601 \| good	20.137 \| good	36.843 \| good	0.623 \| good	5.617 \| good	0.248 \| good
2026-07-23T00:00:00.000Z	33 \| good	3.021 \| good	18.389 \| good	35.511 \| good	0.623 \| good	5.953 \| good	0.248 \| good
2026-07-23T01:00:00.000Z	32 \| good	3.517 \| good	17.049 \| good	34.956 \| good	0.548 \| good	4.124 \| good	0.269 \| good
2026-07-23T02:00:00.000Z	31 \| good	4.038 \| good	15.756 \| good	33.981 \| good	0.607 \| good	2.451 \| good	0.268 \| good
2026-07-23T03:00:00.000Z	33 \| good	6.074 \| good	27 \| good	21.4 \| good	0.111 \| good	7.962 \| good	0.167 \| good
2026-07-23T04:00:00.000Z	33 \| good	5.846 \| good	18.442 \| good	25.443 \| good	0.51 \| good	10.185 \| good	0.343 \| good
2026-07-23T05:00:00.000Z	33 \| good	6.178 \| good	27.146 \| good	20.556 \| good	0.646 \| good	9.476 \| good	0.363 \| good
2026-07-23T06:00:00.000Z	27 \| good	4.717 \| good	28.066 \| good	18.979 \| good	0.634 \| good	10.021 \| good	0.303 \| good
2026-07-23T07:00:00.000Z	38 \| good	7.098 \| good	25.829 \| good	17.839 \| good	0.612 \| good	9.397 \| good	0.283 \| good
2026-07-23T08:00:00.000Z	44 \| good	7.683 \| good	24.187 \| good	15.536 \| good	0.522 \| good	5.013 \| good	0.241 \| good
2026-07-23T09:00:00.000Z	27 \| good	5.442 \| good	25.459 \| good	16.195 \| good	0.488 \| good	4.979 \| good	0.241 \| good
2026-07-23T10:00:00.000Z	27 \| good	5.083 \| good	23.921 \| good	15.963 \| good	0.521 \| good	5.693 \| good	0.241 \| good
2026-07-23T11:00:00.000Z	27 \| good	4.683 \| good	21.923 \| good	13.094 \| good	0.547 \| good	5.778 \| good	0.221 \| good
2026-07-23T12:00:00.000Z	27 \| good	4.742 \| good	17.924 \| good	9.94 \| good	0.712 \| good	8.25 \| good	0.384 \| good
2026-07-23T13:00:00.000Z	27 \| good	4.733 \| good	19.914 \| good	8.499 \| good	0.712 \| good	14.123 \| good	0.384 \| good
2026-07-23T14:00:00.000Z	27 \| good	4.553 \| good	18.128 \| good	13.198 \| good	0.688 \| good	7.642 \| good	0.221 \| good
2026-07-23T15:00:00.000Z	27 \| good	5.211 \| good	18.353 \| good	17.102 \| good	0.534 \| good	6.591 \| good	0.221 \| good
2026-07-23T16:00:00.000Z	27 \| good	4.629 \| good	17.369 \| good	17.682 \| good	0.499 \| good	5.169 \| good	0.204 \| good
2026-07-23T17:00:00.000Z	27 \| good	4.332 \| good	14.843 \| good	29.174 \| good	0.493 \| good	4.269 \| good	0.204 \| good
2026-07-23T18:00:00.000Z	31 \| good	4.125 \| good	12.759 \| good	33.026 \| good	0.507 \| good	3.186 \| good	0.204 \| good
2026-07-23T19:00:00.000Z	36 \| good	3.98 \| good	20.991 \| good	38.812 \| good	0.641 \| good	3.161 \| good	0.204 \| good
2026-07-23T20:00:00.000Z	37 \| good	3.851 \| good	14.127 \| good	40.044 \| good	0.518 \| good	3.831 \| good	0.204 \| good
2026-07-23T21:00:00.000Z	36 \| good	4.07 \| good	16.194 \| good	39.296 \| good	0.94 \| good	3.473 \| good	0.246 \| good
2026-07-23T22:00:00.000Z	35 \| good	4.27 \| good	18.901 \| good	37.629 \| good	0.774 \| good	2.74 \| good	0.205 \| good
2026-07-23T23:00:00.000Z	35 \| good	4.692 \| good	27.416 \| good	37.993 \| good	0.62 \| good	3.523 \| good	0.246 \| good
2026-07-23T23:00:00.000Z	35 \| good	4.27 \| good	18.901 \| good	37.629 \| good	0.774 \| good	2.74 \| good	0.205 \| good
2026-07-24T00:00:00.000Z	38 \| good	7.364 \| good	32.551 \| good	39.597 \| good	0.066 \| good	1.161 \| good	0.128 \| good
2026-07-24T01:00:00.000Z	44 \| good	8.041 \| good	35.308 \| good	39.746 \| good	0.064 \| good	2.071 \| good	0.136 \| good
2026-07-24T02:00:00.000Z	44 \| good	8.277 \| good	36.288 \| good	36.499 \| good	0.066 \| good	2.785 \| good	0.14 \| good
2026-07-24T03:00:00.000Z	44 \| good	7.817 \| good	34.284 \| good	30.139 \| good	0.068 \| good	2.915 \| good	0.139 \| good
2026-07-24T04:00:00.000Z	38 \| good	7.369 \| good	32.776 \| good	21.458 \| good	0.071 \| good	2.961 \| good	0.138 \| good
2026-07-24T05:00:00.000Z	38 \| good	7.046 \| good	31.299 \| good	18.934 \| good	0.074 \| good	3.037 \| good	0.138 \| good
2026-07-24T06:00:00.000Z	38 \| good	6.886 \| good	30.49 \| good	19.283 \| good	0.077 \| good	3.104 \| good	0.137 \| good
2026-07-24T07:00:00.000Z	38 \| good	6.666 \| good	29.576 \| good	16.75 \| good	0.08 \| good	3.173 \| good	0.136 \| good
2026-07-24T08:00:00.000Z	38 \| good	6.857 \| good	30 \| good	15.792 \| good	0.085 \| good	3.357 \| good	0.136 \| good
2026-07-24T09:00:00.000Z	38 \| good	7.196 \| good	31.876 \| good	19.701 \| good	0.096 \| good	3.548 \| good	0.136 \| good
2026-07-24T10:00:00.000Z	44 \| good	7.955 \| good	34.81 \| good	17.432 \| good	0.116 \| good	3.708 \| good	0.137 \| good
2026-07-24T11:00:00.000Z	49 \| good	8.931 \| good	38.984 \| good	20.168 \| good	0.143 \| good	3.803 \| good	0.138 \| good
2026-07-24T12:00:00.000Z	52 \| moderate	9.749 \| good	43.032 \| good	24.797 \| good	0.165 \| good	3.261 \| good	0.139 \| good
2026-07-24T13:00:00.000Z	49 \| good	9.306 \| good	41.211 \| good	33.654 \| good	0.188 \| good	2.464 \| good	0.141 \| good
2026-07-24T14:00:00.000Z	44 \| good	8.229 \| good	36.081 \| good	37.231 \| good	0.26 \| good	1.711 \| good	0.138 \| good
2026-07-24T15:00:00.000Z	44 \| good	7.691 \| good	34 \| good	42.878 \| good	0.29 \| good	1.078 \| good	0.136 \| good
2026-07-24T16:00:00.000Z	44 \| good	7.523 \| good	33.021 \| good	47.288 \| good	0.271 \| good	0.649 \| good	0.134 \| good
2026-07-24T17:00:00.000Z	44 \| good	7.513 \| good	33 \| good	48.432 \| good	0.22 \| good	0.419 \| good	0.134 \| good
2026-07-24T18:00:00.000Z	47 \| good	7.563 \| good	33.109 \| good	51.159 \| good	0.192 \| good	0.345 \| good	0.135 \| good
2026-07-24T19:00:00.000Z	48 \| good	7.756 \| good	34 \| good	52.08 \| good	0.173 \| good	0.317 \| good	0.137 \| good
2026-07-24T20:00:00.000Z	48 \| good	7.986 \| good	34.979 \| good	51.751 \| good	0.161 \| good	0.316 \| good	0.139 \| good
2026-07-24T21:00:00.000Z	44 \| good	8.065 \| good	35.576 \| good	46.525 \| good	0.153 \| good	0.336 \| good	0.142 \| good
2026-07-24T22:00:00.000Z	44 \| good	7.922 \| good	34.709 \| good	43.443 \| good	0.144 \| good	0.383 \| good	0.145 \| good
2026-07-24T23:00:00.000Z	44 \| good	8.017 \| good	35.039 \| good	42.021 \| good	0.135 \| good	0.505 \| good	0.149 \| good
2026-07-25T00:00:00.000Z	44 \| good	8.19 \| good	36 \| good	38.534 \| good	0.128 \| good	0.907 \| good	0.153 \| good
2026-07-25T01:00:00.000Z	44 \| good	8.447 \| good	37.014 \| good	45.155 \| good	0.127 \| good	1.308 \| good	0.155 \| good
2026-07-25T02:00:00.000Z	44 \| good	8.418 \| good	36.962 \| good	43.544 \| good	0.135 \| good	1.807 \| good	0.155 \| good
2026-07-25T03:00:00.000Z	44 \| good	8.277 \| good	36.16 \| good	42.387 \| good	0.143 \| good	2.142 \| good	0.156 \| good
2026-07-25T04:00:00.000Z	49 \| good	8.801 \| good	38.762 \| good	40.672 \| good	0.155 \| good	2.415 \| good	0.156 \| good
2026-07-25T05:00:00.000Z	49 \| good	9.313 \| good	41.61 \| good	42.202 \| good	0.169 \| good	2.674 \| good	0.156 \| good
2026-07-25T06:00:00.000Z	52 \| moderate	9.81 \| good	43.64 \| good	41.516 \| good	0.182 \| good	2.86 \| good	0.156 \| good
2026-07-25T07:00:00.000Z	52 \| moderate	10.242 \| good	45 \| good	38.392 \| good	0.19 \| good	3.047 \| good	0.158 \| good
2026-07-25T08:00:00.000Z	54 \| moderate	10.887 \| good	48 \| good	37.727 \| good	0.195 \| good	3.285 \| good	0.163 \| good
2026-07-25T09:00:00.000Z	56 \| moderate	11.505 \| good	50.944 \| good	34.442 \| good	0.201 \| good	3.619 \| good	0.17 \| good
2026-07-25T10:00:00.000Z	56 \| moderate	11.716 \| good	51.61 \| good	22.562 \| good	0.212 \| good	3.869 \| good	0.177 \| good
2026-07-25T11:00:00.000Z	56 \| moderate	11.848 \| good	52 \| good	16.423 \| good	0.229 \| good	3.833 \| good	0.182 \| good
2026-07-25T12:00:00.000Z	56 \| moderate	11.867 \| good	52.209 \| good	17.891 \| good	0.238 \| good	3.421 \| good	0.186 \| good
2026-07-25T13:00:00.000Z	56 \| moderate	11.668 \| good	51.045 \| good	21.039 \| good	0.255 \| good	2.77 \| good	0.191 \| good
2026-07-25T14:00:00.000Z	56 \| moderate	11.661 \| good	51.005 \| good	19.568 \| good	0.298 \| good	1.768 \| good	0.193 \| good
2026-07-25T15:00:00.000Z	56 \| moderate	11.804 \| good	51.903 \| good	24.093 \| good	0.295 \| good	1.069 \| good	0.194 \| good
2026-07-25T16:00:00.000Z	54 \| moderate	11.101 \| good	49.059 \| good	35.624 \| good	0.226 \| good	0.69 \| good	0.192 \| good
2026-07-25T17:00:00.000Z	54 \| moderate	11.496 \| good	51 \| good	43.009 \| good	0.189 \| good	0.576 \| good	0.191 \| good
2026-07-25T18:00:00.000Z	56 \| moderate	12.352 \| fine	55.129 \| fine	43.304 \| good	0.173 \| good	0.518 \| good	0.191 \| good
2026-07-25T19:00:00.000Z	58 \| moderate	13.063 \| fine	59 \| fine	41.619 \| good	0.168 \| good	0.509 \| good	0.19 \| good
2026-07-25T20:00:00.000Z	58 \| moderate	12.799 \| fine	57.179 \| fine	42.664 \| good	0.168 \| good	0.507 \| good	0.191 \| good
2026-07-25T21:00:00.000Z	56 \| moderate	11.748 \| good	51.943 \| good	41.384 \| good	0.172 \| good	0.471 \| good	0.192 \| good
2026-07-25T22:00:00.000Z	54 \| moderate	11.468 \| good	50.737 \| good	42.681 \| good	0.176 \| good	0.498 \| good	0.193 \| good
2026-07-25T23:00:00.000Z	56 \| moderate	11.644 \| good	51.547 \| good	44.71 \| good	0.178 \| good	0.62 \| good	0.195 \| good

Onalaska

Empower business decisions with accurate air quality data

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

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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 08:00:00, 2026-07-23.

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

The best air quality in Onalaska, Wisconsin was observed at 05:00:00 on 2026-07-23.

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

The air quality in Onalaska, Wisconsin right now is Good, with an AQI of 35.

What pollutant is most frequently found in Onalaska, Wisconsin?

In Onalaska, Wisconsin, O3 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 4.27 μg/m³.

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

Onalaska, Wisconsin currently has a PM₁₀ concentration of 18.901 μg/m³.

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

The current carbon monoxide (CO) level in Onalaska, Wisconsin is 0.205 ppm.

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

The current sulfur dioxide (SO₂) concentration in Onalaska, Wisconsin is 0.774 ppb.

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

Onalaska, Wisconsin currently has an ozone (O₃) concentration of 37.629 ppm.

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

The current level of nitrogen dioxide (NO₂) in Onalaska, Wisconsin is 2.74 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-07-22T00:00:00.000Z	60 \| moderate	14.2 \| fine	56.945 \| fine	41.354 \| good	0.606 \| good	2.029 \| good	0.262 \| good
2026-07-22T01:00:00.000Z	60 \| moderate	14.336 \| fine	37.682 \| good	36.692 \| good	0.591 \| good	2.119 \| good	0.242 \| good
2026-07-22T02:00:00.000Z	49 \| good	8.856 \| good	36.06 \| good	36.496 \| good	0.644 \| good	3.051 \| good	0.283 \| good
2026-07-22T03:00:00.000Z	38 \| good	7.154 \| good	27.172 \| good	35.316 \| good	0.602 \| good	2.722 \| good	0.224 \| good
2026-07-22T04:00:00.000Z	33 \| good	6.124 \| good	16.608 \| good	31.096 \| good	0.583 \| good	2.506 \| good	0.183 \| good
2026-07-22T05:00:00.000Z	45 \| good	8.031 \| good	48.885 \| good	28.714 \| good	0.56 \| good	2.392 \| good	0.183 \| good
2026-07-22T06:00:00.000Z	50 \| good	8.943 \| good	53.835 \| good	27.728 \| good	0.519 \| good	2.416 \| good	0.223 \| good
2026-07-22T07:00:00.000Z	49 \| good	8.942 \| good	41.071 \| good	25.876 \| good	0.54 \| good	2.5 \| good	0.201 \| good
2026-07-22T08:00:00.000Z	38 \| good	5.59 \| good	40.504 \| good	23.427 \| good	0.558 \| good	4.277 \| good	0.201 \| good
2026-07-22T09:00:00.000Z	27 \| good	5.495 \| good	25.014 \| good	21.215 \| good	0.448 \| good	3.523 \| good	0.201 \| good
2026-07-22T10:00:00.000Z	19 \| good	2.833 \| good	11.502 \| good	20.204 \| good	0.481 \| good	4.872 \| good	0.201 \| good
2026-07-22T11:00:00.000Z	38 \| good	7.336 \| good	34.268 \| good	19.227 \| good	0.603 \| good	6.242 \| good	0.237 \| good
2026-07-22T12:00:00.000Z	33 \| good	6.217 \| good	22.731 \| good	14.227 \| good	0.581 \| good	6.122 \| good	0.254 \| good
2026-07-22T13:00:00.000Z	27 \| good	4.699 \| good	18.211 \| good	15.147 \| good	0.581 \| good	8.734 \| good	0.32 \| good
2026-07-22T14:00:00.000Z	19 \| good	2.818 \| good	12.528 \| good	20.731 \| good	0.681 \| good	10.486 \| good	0.283 \| good
2026-07-22T15:00:00.000Z	22 \| good	2.727 \| good	9.082 \| good	23.903 \| good	0.647 \| good	6.755 \| good	0.224 \| good
2026-07-22T16:00:00.000Z	25 \| good	3.358 \| good	14.197 \| good	26.842 \| good	0.491 \| good	5.431 \| good	0.224 \| good
2026-07-22T17:00:00.000Z	28 \| good	3 \| good	12.796 \| good	30.21 \| good	0.664 \| good	4.569 \| good	0.224 \| good
2026-07-22T18:00:00.000Z	29 \| good	3.001 \| good	11.955 \| good	31.239 \| good	0.626 \| good	4.49 \| good	0.224 \| good
2026-07-22T19:00:00.000Z	33 \| good	3.194 \| good	10.949 \| good	35.684 \| good	0.606 \| good	4.738 \| good	0.246 \| good
2026-07-22T20:00:00.000Z	33 \| good	3.311 \| good	15.924 \| good	36.352 \| good	0.606 \| good	4.88 \| good	0.21 \| good
2026-07-22T21:00:00.000Z	35 \| good	3.378 \| good	21.573 \| good	38.002 \| good	0.623 \| good	4.885 \| good	0.226 \| good
2026-07-22T22:00:00.000Z	33 \| good	3.46 \| good	15.71 \| good	36.041 \| good	0.602 \| good	5.864 \| good	0.248 \| good
2026-07-22T23:00:00.000Z	34 \| good	3.601 \| good	20.137 \| good	36.843 \| good	0.623 \| good	5.617 \| good	0.248 \| good
2026-07-23T00:00:00.000Z	33 \| good	3.021 \| good	18.389 \| good	35.511 \| good	0.623 \| good	5.953 \| good	0.248 \| good
2026-07-23T01:00:00.000Z	32 \| good	3.517 \| good	17.049 \| good	34.956 \| good	0.548 \| good	4.124 \| good	0.269 \| good
2026-07-23T02:00:00.000Z	31 \| good	4.038 \| good	15.756 \| good	33.981 \| good	0.607 \| good	2.451 \| good	0.268 \| good
2026-07-23T03:00:00.000Z	33 \| good	6.074 \| good	27 \| good	21.4 \| good	0.111 \| good	7.962 \| good	0.167 \| good
2026-07-23T04:00:00.000Z	33 \| good	5.846 \| good	18.442 \| good	25.443 \| good	0.51 \| good	10.185 \| good	0.343 \| good
2026-07-23T05:00:00.000Z	33 \| good	6.178 \| good	27.146 \| good	20.556 \| good	0.646 \| good	9.476 \| good	0.363 \| good
2026-07-23T06:00:00.000Z	27 \| good	4.717 \| good	28.066 \| good	18.979 \| good	0.634 \| good	10.021 \| good	0.303 \| good
2026-07-23T07:00:00.000Z	38 \| good	7.098 \| good	25.829 \| good	17.839 \| good	0.612 \| good	9.397 \| good	0.283 \| good
2026-07-23T08:00:00.000Z	44 \| good	7.683 \| good	24.187 \| good	15.536 \| good	0.522 \| good	5.013 \| good	0.241 \| good
2026-07-23T09:00:00.000Z	27 \| good	5.442 \| good	25.459 \| good	16.195 \| good	0.488 \| good	4.979 \| good	0.241 \| good
2026-07-23T10:00:00.000Z	27 \| good	5.083 \| good	23.921 \| good	15.963 \| good	0.521 \| good	5.693 \| good	0.241 \| good
2026-07-23T11:00:00.000Z	27 \| good	4.683 \| good	21.923 \| good	13.094 \| good	0.547 \| good	5.778 \| good	0.221 \| good
2026-07-23T12:00:00.000Z	27 \| good	4.742 \| good	17.924 \| good	9.94 \| good	0.712 \| good	8.25 \| good	0.384 \| good
2026-07-23T13:00:00.000Z	27 \| good	4.733 \| good	19.914 \| good	8.499 \| good	0.712 \| good	14.123 \| good	0.384 \| good
2026-07-23T14:00:00.000Z	27 \| good	4.553 \| good	18.128 \| good	13.198 \| good	0.688 \| good	7.642 \| good	0.221 \| good
2026-07-23T15:00:00.000Z	27 \| good	5.211 \| good	18.353 \| good	17.102 \| good	0.534 \| good	6.591 \| good	0.221 \| good
2026-07-23T16:00:00.000Z	27 \| good	4.629 \| good	17.369 \| good	17.682 \| good	0.499 \| good	5.169 \| good	0.204 \| good
2026-07-23T17:00:00.000Z	27 \| good	4.332 \| good	14.843 \| good	29.174 \| good	0.493 \| good	4.269 \| good	0.204 \| good
2026-07-23T18:00:00.000Z	31 \| good	4.125 \| good	12.759 \| good	33.026 \| good	0.507 \| good	3.186 \| good	0.204 \| good
2026-07-23T19:00:00.000Z	36 \| good	3.98 \| good	20.991 \| good	38.812 \| good	0.641 \| good	3.161 \| good	0.204 \| good
2026-07-23T20:00:00.000Z	37 \| good	3.851 \| good	14.127 \| good	40.044 \| good	0.518 \| good	3.831 \| good	0.204 \| good
2026-07-23T21:00:00.000Z	36 \| good	4.07 \| good	16.194 \| good	39.296 \| good	0.94 \| good	3.473 \| good	0.246 \| good
2026-07-23T22:00:00.000Z	35 \| good	4.27 \| good	18.901 \| good	37.629 \| good	0.774 \| good	2.74 \| good	0.205 \| good
2026-07-23T23:00:00.000Z	35 \| good	4.692 \| good	27.416 \| good	37.993 \| good	0.62 \| good	3.523 \| good	0.246 \| good
2026-07-23T23:00:00.000Z	35 \| good	4.27 \| good	18.901 \| good	37.629 \| good	0.774 \| good	2.74 \| good	0.205 \| good
2026-07-24T00:00:00.000Z	38 \| good	7.364 \| good	32.551 \| good	39.597 \| good	0.066 \| good	1.161 \| good	0.128 \| good
2026-07-24T01:00:00.000Z	44 \| good	8.041 \| good	35.308 \| good	39.746 \| good	0.064 \| good	2.071 \| good	0.136 \| good
2026-07-24T02:00:00.000Z	44 \| good	8.277 \| good	36.288 \| good	36.499 \| good	0.066 \| good	2.785 \| good	0.14 \| good
2026-07-24T03:00:00.000Z	44 \| good	7.817 \| good	34.284 \| good	30.139 \| good	0.068 \| good	2.915 \| good	0.139 \| good
2026-07-24T04:00:00.000Z	38 \| good	7.369 \| good	32.776 \| good	21.458 \| good	0.071 \| good	2.961 \| good	0.138 \| good
2026-07-24T05:00:00.000Z	38 \| good	7.046 \| good	31.299 \| good	18.934 \| good	0.074 \| good	3.037 \| good	0.138 \| good
2026-07-24T06:00:00.000Z	38 \| good	6.886 \| good	30.49 \| good	19.283 \| good	0.077 \| good	3.104 \| good	0.137 \| good
2026-07-24T07:00:00.000Z	38 \| good	6.666 \| good	29.576 \| good	16.75 \| good	0.08 \| good	3.173 \| good	0.136 \| good
2026-07-24T08:00:00.000Z	38 \| good	6.857 \| good	30 \| good	15.792 \| good	0.085 \| good	3.357 \| good	0.136 \| good
2026-07-24T09:00:00.000Z	38 \| good	7.196 \| good	31.876 \| good	19.701 \| good	0.096 \| good	3.548 \| good	0.136 \| good
2026-07-24T10:00:00.000Z	44 \| good	7.955 \| good	34.81 \| good	17.432 \| good	0.116 \| good	3.708 \| good	0.137 \| good
2026-07-24T11:00:00.000Z	49 \| good	8.931 \| good	38.984 \| good	20.168 \| good	0.143 \| good	3.803 \| good	0.138 \| good
2026-07-24T12:00:00.000Z	52 \| moderate	9.749 \| good	43.032 \| good	24.797 \| good	0.165 \| good	3.261 \| good	0.139 \| good
2026-07-24T13:00:00.000Z	49 \| good	9.306 \| good	41.211 \| good	33.654 \| good	0.188 \| good	2.464 \| good	0.141 \| good
2026-07-24T14:00:00.000Z	44 \| good	8.229 \| good	36.081 \| good	37.231 \| good	0.26 \| good	1.711 \| good	0.138 \| good
2026-07-24T15:00:00.000Z	44 \| good	7.691 \| good	34 \| good	42.878 \| good	0.29 \| good	1.078 \| good	0.136 \| good
2026-07-24T16:00:00.000Z	44 \| good	7.523 \| good	33.021 \| good	47.288 \| good	0.271 \| good	0.649 \| good	0.134 \| good
2026-07-24T17:00:00.000Z	44 \| good	7.513 \| good	33 \| good	48.432 \| good	0.22 \| good	0.419 \| good	0.134 \| good
2026-07-24T18:00:00.000Z	47 \| good	7.563 \| good	33.109 \| good	51.159 \| good	0.192 \| good	0.345 \| good	0.135 \| good
2026-07-24T19:00:00.000Z	48 \| good	7.756 \| good	34 \| good	52.08 \| good	0.173 \| good	0.317 \| good	0.137 \| good
2026-07-24T20:00:00.000Z	48 \| good	7.986 \| good	34.979 \| good	51.751 \| good	0.161 \| good	0.316 \| good	0.139 \| good
2026-07-24T21:00:00.000Z	44 \| good	8.065 \| good	35.576 \| good	46.525 \| good	0.153 \| good	0.336 \| good	0.142 \| good
2026-07-24T22:00:00.000Z	44 \| good	7.922 \| good	34.709 \| good	43.443 \| good	0.144 \| good	0.383 \| good	0.145 \| good
2026-07-24T23:00:00.000Z	44 \| good	8.017 \| good	35.039 \| good	42.021 \| good	0.135 \| good	0.505 \| good	0.149 \| good
2026-07-25T00:00:00.000Z	44 \| good	8.19 \| good	36 \| good	38.534 \| good	0.128 \| good	0.907 \| good	0.153 \| good
2026-07-25T01:00:00.000Z	44 \| good	8.447 \| good	37.014 \| good	45.155 \| good	0.127 \| good	1.308 \| good	0.155 \| good
2026-07-25T02:00:00.000Z	44 \| good	8.418 \| good	36.962 \| good	43.544 \| good	0.135 \| good	1.807 \| good	0.155 \| good
2026-07-25T03:00:00.000Z	44 \| good	8.277 \| good	36.16 \| good	42.387 \| good	0.143 \| good	2.142 \| good	0.156 \| good
2026-07-25T04:00:00.000Z	49 \| good	8.801 \| good	38.762 \| good	40.672 \| good	0.155 \| good	2.415 \| good	0.156 \| good
2026-07-25T05:00:00.000Z	49 \| good	9.313 \| good	41.61 \| good	42.202 \| good	0.169 \| good	2.674 \| good	0.156 \| good
2026-07-25T06:00:00.000Z	52 \| moderate	9.81 \| good	43.64 \| good	41.516 \| good	0.182 \| good	2.86 \| good	0.156 \| good
2026-07-25T07:00:00.000Z	52 \| moderate	10.242 \| good	45 \| good	38.392 \| good	0.19 \| good	3.047 \| good	0.158 \| good
2026-07-25T08:00:00.000Z	54 \| moderate	10.887 \| good	48 \| good	37.727 \| good	0.195 \| good	3.285 \| good	0.163 \| good
2026-07-25T09:00:00.000Z	56 \| moderate	11.505 \| good	50.944 \| good	34.442 \| good	0.201 \| good	3.619 \| good	0.17 \| good
2026-07-25T10:00:00.000Z	56 \| moderate	11.716 \| good	51.61 \| good	22.562 \| good	0.212 \| good	3.869 \| good	0.177 \| good
2026-07-25T11:00:00.000Z	56 \| moderate	11.848 \| good	52 \| good	16.423 \| good	0.229 \| good	3.833 \| good	0.182 \| good
2026-07-25T12:00:00.000Z	56 \| moderate	11.867 \| good	52.209 \| good	17.891 \| good	0.238 \| good	3.421 \| good	0.186 \| good
2026-07-25T13:00:00.000Z	56 \| moderate	11.668 \| good	51.045 \| good	21.039 \| good	0.255 \| good	2.77 \| good	0.191 \| good
2026-07-25T14:00:00.000Z	56 \| moderate	11.661 \| good	51.005 \| good	19.568 \| good	0.298 \| good	1.768 \| good	0.193 \| good
2026-07-25T15:00:00.000Z	56 \| moderate	11.804 \| good	51.903 \| good	24.093 \| good	0.295 \| good	1.069 \| good	0.194 \| good
2026-07-25T16:00:00.000Z	54 \| moderate	11.101 \| good	49.059 \| good	35.624 \| good	0.226 \| good	0.69 \| good	0.192 \| good
2026-07-25T17:00:00.000Z	54 \| moderate	11.496 \| good	51 \| good	43.009 \| good	0.189 \| good	0.576 \| good	0.191 \| good
2026-07-25T18:00:00.000Z	56 \| moderate	12.352 \| fine	55.129 \| fine	43.304 \| good	0.173 \| good	0.518 \| good	0.191 \| good
2026-07-25T19:00:00.000Z	58 \| moderate	13.063 \| fine	59 \| fine	41.619 \| good	0.168 \| good	0.509 \| good	0.19 \| good
2026-07-25T20:00:00.000Z	58 \| moderate	12.799 \| fine	57.179 \| fine	42.664 \| good	0.168 \| good	0.507 \| good	0.191 \| good
2026-07-25T21:00:00.000Z	56 \| moderate	11.748 \| good	51.943 \| good	41.384 \| good	0.172 \| good	0.471 \| good	0.192 \| good
2026-07-25T22:00:00.000Z	54 \| moderate	11.468 \| good	50.737 \| good	42.681 \| good	0.176 \| good	0.498 \| good	0.193 \| good
2026-07-25T23:00:00.000Z	56 \| moderate	11.644 \| good	51.547 \| good	44.71 \| good	0.178 \| good	0.62 \| good	0.195 \| 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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Holmen, Wisconsin

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Eau Claire, Wisconsin

Reedsburg, Wisconsin

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Frequently asked questions

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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?

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