What is the PM10 level in Watertown, Wisconsin at the moment?

The PM10 concentration in Watertown, Wisconsin is 18.599 μg/m3 at the moment.

What is the sulfur dioxide (SO2) level in Watertown, Wisconsin at the moment?

Currently, Watertown, Wisconsin has a sulfur dioxide (SO2) concentration of 0.598 ppb.

What is the ozone (O3) level in Watertown, Wisconsin at the moment?

The current ozone (O3) level in Watertown, Wisconsin at the moment is 37.723 ppm.

What is the nitrogen dioxide (NO2) level in Watertown, Wisconsin at the moment?

Nitrogen dioxide (NO2) level in Watertown, Wisconsin at the moment is 4.329 ppb.

Live air quality index in Watertown, Wisconsin today

Q: What is the PM2.5 level in Watertown, Wisconsin at the moment?

PM2.5 levels in Watertown, Wisconsin are currently 4.143 μg/m3.

Stay updated with real-time air quality in Watertown, 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

Watertown, Wisconsin

Last updated: ... (Local time)

Major air pollutants in Watertown, Wisconsin

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

4.14 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

18.60 μg/m³

155

255

425

605+

Ozone (O₃)

37.72 ppb

201

201+

Sulfur Dioxide (SO₂)

0.60 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

4.33 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.15 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Looks like we don't have this data available right now

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Watertown, Wisconsin

Scroll To Air Quality Map

Track live Watertown, Wisconsin air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-03-07T21:00:00.000Z	16 \| good	3.069 \| good	8.411 \| good	15.694 \| good	0.296 \| good	2.749 \| good	0.148 \| good
2026-03-07T22:00:00.000Z	17 \| good	2.059 \| good	12.825 \| good	17.915 \| good	0.315 \| good	2.817 \| good	0.148 \| good
2026-03-07T23:00:00.000Z	18 \| good	2.638 \| good	17.768 \| good	19.46 \| good	0.289 \| good	2.937 \| good	0.154 \| good
2026-03-08T00:00:00.000Z	16 \| good	2.961 \| good	16.156 \| good	16.1 \| good	0.281 \| good	2.707 \| good	0.148 \| good
2026-03-08T01:00:00.000Z	22 \| good	3.777 \| good	17.847 \| good	17.311 \| good	0.281 \| good	2.681 \| good	0.148 \| good
2026-03-08T02:00:00.000Z	22 \| good	3.79 \| good	17.282 \| good	16.819 \| good	0.281 \| good	2.673 \| good	0.148 \| good
2026-03-08T03:00:00.000Z	44 \| good	7.782 \| good	34.199 \| good	31.183 \| good	0.252 \| good	3.394 \| good	0.17 \| good
2026-03-08T04:00:00.000Z	22 \| good	3.865 \| good	16.955 \| good	18.266 \| good	0.28 \| good	2.627 \| good	0.148 \| good
2026-03-08T05:00:00.000Z	22 \| good	4.254 \| good	18.237 \| good	19.672 \| good	0.302 \| good	2.967 \| good	0.127 \| good
2026-03-08T06:00:00.000Z	27 \| good	4.824 \| good	14.294 \| good	20.625 \| good	0.254 \| good	3.713 \| good	0.134 \| good
2026-03-08T07:00:00.000Z	27 \| good	5.194 \| good	16.858 \| good	23.422 \| good	0.262 \| good	3.643 \| good	0.134 \| good
2026-03-08T08:00:00.000Z	27 \| good	4.971 \| good	18.534 \| good	26.365 \| good	0.288 \| good	2.281 \| good	0.134 \| good
2026-03-08T09:00:00.000Z	27 \| good	5.083 \| good	16.376 \| good	25.911 \| good	0.273 \| good	3.064 \| good	0.128 \| good
2026-03-08T10:00:00.000Z	27 \| good	5.333 \| good	17.212 \| good	25.837 \| good	0.296 \| good	2.362 \| good	0.134 \| good
2026-03-08T11:00:00.000Z	33 \| good	5.678 \| good	15.858 \| good	25.717 \| good	0.364 \| good	2.415 \| good	0.134 \| good
2026-03-08T12:00:00.000Z	33 \| good	6.345 \| good	18.832 \| good	25.584 \| good	0.317 \| good	2.499 \| good	0.134 \| good
2026-03-08T13:00:00.000Z	38 \| good	6.587 \| good	25.823 \| good	23.531 \| good	0.332 \| good	2.622 \| good	0.134 \| good
2026-03-08T14:00:00.000Z	38 \| good	7.345 \| good	33.617 \| good	24.279 \| good	0.325 \| good	2.707 \| good	0.134 \| good
2026-03-08T15:00:00.000Z	38 \| good	7.319 \| good	22.528 \| good	21.171 \| good	0.481 \| good	2.411 \| good	0.134 \| good
2026-03-08T16:00:00.000Z	38 \| good	6.822 \| good	27.635 \| good	25.518 \| good	0.559 \| good	2.53 \| good	0.134 \| good
2026-03-08T17:00:00.000Z	33 \| good	6.39 \| good	17.184 \| good	26.351 \| good	0.528 \| good	2.41 \| good	0.155 \| good
2026-03-08T18:00:00.000Z	33 \| good	6.361 \| good	13.699 \| good	28.427 \| good	0.582 \| good	2.323 \| good	0.134 \| good
2026-03-08T19:00:00.000Z	33 \| good	6.174 \| good	15.793 \| good	30.13 \| good	0.574 \| good	2.423 \| good	0.138 \| good
2026-03-08T20:00:00.000Z	33 \| good	5.841 \| good	16.809 \| good	36.155 \| good	0.345 \| good	2.435 \| good	0.159 \| good
2026-03-08T21:00:00.000Z	31 \| good	5.246 \| good	17.788 \| good	34.194 \| good	0.334 \| good	2.103 \| good	0.159 \| good
2026-03-08T22:00:00.000Z	36 \| good	5.13 \| good	16.171 \| good	38.828 \| good	0.352 \| good	2.132 \| good	0.159 \| good
2026-03-08T23:00:00.000Z	36 \| good	4.79 \| good	13.824 \| good	39.101 \| good	0.37 \| good	2.833 \| good	0.159 \| good
2026-03-09T00:00:00.000Z	34 \| good	4.675 \| good	13.437 \| good	37.191 \| good	0.425 \| good	3.176 \| good	0.184 \| good
2026-03-09T01:00:00.000Z	34 \| good	4.272 \| good	14.18 \| good	37.11 \| good	0.365 \| good	3.385 \| good	0.159 \| good
2026-03-09T02:00:00.000Z	33 \| good	4.067 \| good	15.541 \| good	35.898 \| good	0.411 \| good	3.854 \| good	0.159 \| good
2026-03-09T03:00:00.000Z	29 \| good	1.305 \| good	5.07 \| good	31.155 \| good	0.359 \| good	2.182 \| good	0.155 \| good
2026-03-09T04:00:00.000Z	30 \| good	3.571 \| good	14.903 \| good	32.184 \| good	0.396 \| good	2.851 \| good	0.138 \| good
2026-03-09T05:00:00.000Z	30 \| good	3.692 \| good	14.881 \| good	31.603 \| good	0.446 \| good	2.507 \| good	0.138 \| good
2026-03-09T06:00:00.000Z	31 \| good	3.685 \| good	13.85 \| good	32.614 \| good	0.403 \| good	2.274 \| good	0.138 \| good
2026-03-09T07:00:00.000Z	31 \| good	3.674 \| good	13.468 \| good	33.435 \| good	0.396 \| good	2.281 \| good	0.138 \| good
2026-03-09T08:00:00.000Z	30 \| good	3.527 \| good	13.492 \| good	32.342 \| good	0.444 \| good	2.472 \| good	0.138 \| good
2026-03-09T09:00:00.000Z	31 \| good	3.537 \| good	14.149 \| good	32.871 \| good	0.486 \| good	2.545 \| good	0.138 \| good
2026-03-09T10:00:00.000Z	30 \| good	3.613 \| good	9.634 \| good	32.026 \| good	0.486 \| good	4.418 \| good	0.138 \| good
2026-03-09T11:00:00.000Z	27 \| good	3.477 \| good	11.624 \| good	28.899 \| good	0.428 \| good	6.207 \| good	0.159 \| good
2026-03-09T12:00:00.000Z	29 \| good	3.673 \| good	10.209 \| good	30.713 \| good	0.474 \| good	7.193 \| good	0.159 \| good
2026-03-09T13:00:00.000Z	26 \| good	3.404 \| good	16.641 \| good	28.143 \| good	0.466 \| good	7.135 \| good	0.159 \| good
2026-03-09T14:00:00.000Z	22 \| good	3.777 \| good	18.206 \| good	19.097 \| good	0.414 \| good	8.191 \| good	0.159 \| good
2026-03-09T15:00:00.000Z	22 \| good	3.925 \| good	15.489 \| good	23.609 \| good	0.504 \| good	5.295 \| good	0.131 \| good
2026-03-09T16:00:00.000Z	22 \| good	3.937 \| good	16.205 \| good	23.474 \| good	0.429 \| good	4.416 \| good	0.134 \| good
2026-03-09T17:00:00.000Z	25 \| good	4.353 \| good	16.121 \| good	27.328 \| good	0.435 \| good	4.63 \| good	0.127 \| good
2026-03-09T18:00:00.000Z	31 \| good	4.214 \| good	16.959 \| good	32.505 \| good	0.496 \| good	4.726 \| good	0.148 \| good
2026-03-09T19:00:00.000Z	35 \| good	4.143 \| good	18.599 \| good	37.723 \| good	0.598 \| good	4.329 \| good	0.155 \| good
2026-03-09T20:00:00.000Z	31 \| good	5.454 \| good	20.441 \| good	33.906 \| good	0.716 \| good	3.848 \| good	0.155 \| good
2026-03-09T20:00:00.000Z	35 \| good	4.143 \| good	18.599 \| good	37.723 \| good	0.598 \| good	4.329 \| good	0.155 \| good
2026-03-09T21:00:00.000Z	37 \| good	3.185 \| good	13.914 \| good	40.335 \| good	0.308 \| good	1.06 \| good	0.143 \| good
2026-03-09T22:00:00.000Z	39 \| good	2.383 \| good	9.924 \| good	41.681 \| good	0.367 \| good	3.746 \| good	0.167 \| good
2026-03-09T23:00:00.000Z	31 \| good	4.196 \| good	18.812 \| good	34.204 \| good	0.426 \| good	6.432 \| good	0.192 \| good
2026-03-10T00:00:00.000Z	25 \| good	3.821 \| good	16.884 \| good	27.165 \| good	0.485 \| good	9.118 \| good	0.216 \| good
2026-03-10T01:00:00.000Z	22 \| good	3.988 \| good	17.869 \| good	20.59 \| good	0.652 \| good	12.193 \| good	0.248 \| good
2026-03-10T02:00:00.000Z	24 \| good	4.316 \| good	18.942 \| good	26.184 \| good	0.819 \| good	15.267 \| good	0.28 \| good
2026-03-10T03:00:00.000Z	22 \| good	4.473 \| good	19.097 \| good	21.738 \| good	0.986 \| good	18.342 \| good	0.312 \| good
2026-03-10T04:00:00.000Z	27 \| good	4.592 \| good	20.044 \| good	22.115 \| good	0.975 \| good	17.677 \| good	0.31 \| good
2026-03-10T05:00:00.000Z	29 \| good	4.24 \| good	19.02 \| good	31.162 \| good	0.965 \| good	17.012 \| good	0.307 \| good
2026-03-10T06:00:00.000Z	32 \| good	2.081 \| good	8.162 \| good	34.64 \| good	0.954 \| good	16.346 \| good	0.305 \| good
2026-03-10T07:00:00.000Z	28 \| good	1.343 \| good	5.112 \| good	29.835 \| good	0.838 \| good	14.159 \| good	0.283 \| good
2026-03-10T08:00:00.000Z	27 \| good	1.613 \| good	6.954 \| good	28.744 \| good	0.722 \| good	11.972 \| good	0.26 \| good
2026-03-10T09:00:00.000Z	26 \| good	2.253 \| good	9 \| good	27.617 \| good	0.606 \| good	9.785 \| good	0.238 \| good
2026-03-10T10:00:00.000Z	28 \| good	0.388 \| good	1.097 \| good	29.906 \| good	0.544 \| good	8.488 \| good	0.22 \| good
2026-03-10T11:00:00.000Z	29 \| good	0.295 \| good	1 \| good	31.114 \| good	0.481 \| good	7.192 \| good	0.201 \| good
2026-03-10T12:00:00.000Z	29 \| good	1.074 \| good	4.043 \| good	31.178 \| good	0.419 \| good	5.895 \| good	0.183 \| good
2026-03-10T13:00:00.000Z	29 \| good	1.361 \| good	5.11 \| good	30.731 \| good	0.421 \| good	5.096 \| good	0.181 \| good
2026-03-10T14:00:00.000Z	29 \| good	2.666 \| good	10.994 \| good	30.818 \| good	0.423 \| good	4.298 \| good	0.178 \| good
2026-03-10T15:00:00.000Z	24 \| good	3.379 \| good	15 \| good	26.335 \| good	0.425 \| good	3.499 \| good	0.176 \| good
2026-03-10T16:00:00.000Z	26 \| good	3.996 \| good	17.086 \| good	28.054 \| good	0.46 \| good	2.927 \| good	0.173 \| good
2026-03-10T17:00:00.000Z	29 \| good	4.331 \| good	19.019 \| good	30.856 \| good	0.494 \| good	2.356 \| good	0.169 \| good
2026-03-10T18:00:00.000Z	32 \| good	2.492 \| good	10.076 \| good	35.385 \| good	0.529 \| good	1.784 \| good	0.166 \| good
2026-03-10T19:00:00.000Z	33 \| good	2.382 \| good	9.986 \| good	35.733 \| good	0.499 \| good	1.806 \| good	0.164 \| good
2026-03-10T20:00:00.000Z	33 \| good	2.297 \| good	9.9 \| good	35.56 \| good	0.468 \| good	1.829 \| good	0.163 \| good
2026-03-10T21:00:00.000Z	33 \| good	2.375 \| good	9.975 \| good	35.855 \| good	0.438 \| good	1.851 \| good	0.162 \| good
2026-03-10T22:00:00.000Z	31 \| good	1.879 \| good	7.964 \| good	33.85 \| good	0.41 \| good	2.36 \| good	0.164 \| good
2026-03-10T23:00:00.000Z	29 \| good	1.495 \| good	5.969 \| good	30.702 \| good	0.381 \| good	2.869 \| good	0.167 \| good
2026-03-11T00:00:00.000Z	25 \| good	0.195 \| good	0.091 \| good	27.225 \| good	0.352 \| good	3.378 \| good	0.17 \| good
2026-03-11T01:00:00.000Z	23 \| good	0.504 \| good	1.967 \| good	25.015 \| good	0.338 \| good	3.217 \| good	0.169 \| good
2026-03-11T02:00:00.000Z	23 \| good	3.399 \| good	15.052 \| good	25.337 \| good	0.323 \| good	3.056 \| good	0.168 \| good
2026-03-11T03:00:00.000Z	25 \| good	3.99 \| good	17.141 \| good	27.206 \| good	0.309 \| good	2.896 \| good	0.167 \| good
2026-03-11T04:00:00.000Z	29 \| good	4.132 \| good	18.052 \| good	30.506 \| good	0.28 \| good	2.614 \| good	0.165 \| good
2026-03-11T05:00:00.000Z	31 \| good	4.839 \| good	21 \| good	32.661 \| good	0.251 \| good	2.332 \| good	0.163 \| good
2026-03-11T06:00:00.000Z	27 \| good	2.701 \| good	2.722 \| good	28.705 \| good	0.222 \| good	2.031 \| good	0.161 \| good
2026-03-11T07:00:00.000Z	30 \| good	4.604 \| good	19.958 \| good	31.799 \| good	0.207 \| good	1.805 \| good	0.159 \| good
2026-03-11T08:00:00.000Z	25 \| good	1.544 \| good	5.989 \| good	26.862 \| good	0.191 \| good	1.56 \| good	0.158 \| good
2026-03-11T09:00:00.000Z	24 \| good	1.697 \| good	6.966 \| good	26.229 \| good	0.176 \| good	1.315 \| good	0.156 \| good
2026-03-11T10:00:00.000Z	24 \| good	2.25 \| good	9 \| good	26.235 \| good	0.171 \| good	1.185 \| good	0.154 \| good
2026-03-11T11:00:00.000Z	24 \| good	1.203 \| good	5 \| good	25.712 \| good	0.166 \| good	1.055 \| good	0.153 \| good
2026-03-11T12:00:00.000Z	30 \| good	1.769 \| good	1.786 \| good	32.443 \| good	0.159 \| good	0.915 \| good	0.151 \| good
2026-03-11T13:00:00.000Z	31 \| good	1.636 \| good	1.649 \| good	33.293 \| good	0.167 \| good	1.051 \| good	0.153 \| good
2026-03-11T14:00:00.000Z	31 \| good	1.414 \| good	1.429 \| good	34.143 \| good	0.174 \| good	1.186 \| good	0.154 \| good
2026-03-11T15:00:00.000Z	32 \| good	1.123 \| good	1.144 \| good	34.993 \| good	0.181 \| good	1.322 \| good	0.155 \| good
2026-03-11T16:00:00.000Z	33 \| good	1.076 \| good	1.126 \| good	35.934 \| good	0.176 \| good	1.228 \| good	0.153 \| good
2026-03-11T17:00:00.000Z	24 \| good	0.582 \| good	2 \| good	25.794 \| good	0.174 \| good	1.149 \| good	0.152 \| good
2026-03-11T18:00:00.000Z	35 \| good	0.906 \| good	1.021 \| good	37.818 \| good	0.167 \| good	1.042 \| good	0.151 \| good
2026-03-11T19:00:00.000Z	35 \| good	0.786 \| good	0.907 \| good	38.405 \| good	0.165 \| good	1.095 \| good	0.15 \| good
2026-03-11T20:00:00.000Z	36 \| good	0.797 \| good	0.916 \| good	38.991 \| good	0.162 \| good	1.147 \| good	0.148 \| good

Watertown

Get reliable air quality data to drive your business

Watertown, Wisconsin air quality map: Stay updated on AQI near you

0.20ppm

How accurate is Wisconsin, USA air quality data?

Air quality and pollutant data for Wisconsin, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.

Source: Ambee Data Sources

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Frequently asked questions

How often is air quality information updated for Watertown, Wisconsin?

The air quality information for Watertown, Wisconsin is updated every hour for accuracy.

What time in the last 24 hours was the air quality in Watertown, Wisconsin at its worst?

In the past 24 hours, the air quality in Watertown, Wisconsin was at its worst at 11:00:00 on 2026-03-08.

When did Watertown, Wisconsin experience the best air quality in the last 24 hours?

In the last 24 hours, the best air quality in Watertown, Wisconsin was observed at 04:00:00 on 2026-03-09.

What is the AQI in Watertown, Wisconsin right now?

As of now, the AQI in Watertown, Wisconsin is 35, indicating Good conditions.

What is the most common type of pollution in Watertown, Wisconsin?

Watertown, Wisconsin air has the highest levels of O3.

What should I do in case of poor air quality in Watertown, Wisconsin?

Poor air quality in Watertown, Wisconsin means it's advisable to stay indoors and wear a mask for your protection.

What is the PM_2.5 level in Watertown, Wisconsin at the moment?

PM_2.5 levels in Watertown, Wisconsin are currently 4.143 μg/m³.

What is the PM₁₀ level in Watertown, Wisconsin at the moment?

The PM₁₀ concentration in Watertown, Wisconsin is 18.599 μg/m³ at the moment.

What is the carbon monoxide (CO) level in Watertown, Wisconsin at the moment?

The current carbon monoxide (CO) concentration in Watertown, Wisconsin is 0.155 ppm.

What is the sulfur dioxide (SO₂) level in Watertown, Wisconsin at the moment?

Currently, Watertown, Wisconsin has a sulfur dioxide (SO₂) concentration of 0.598 ppb.

What is the ozone (O₃) level in Watertown, Wisconsin at the moment?

The current ozone (O₃) level in Watertown, Wisconsin at the moment is 37.723 ppm.

What is the nitrogen dioxide (NO₂) level in Watertown, Wisconsin at the moment?

Nitrogen dioxide (NO₂) level in Watertown, Wisconsin at the moment is 4.329 ppb.

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