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

The PM10 concentration in Watertown, Wisconsin is 49.478 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 0.558 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 44.366 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 6.042 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 9.005 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)

9.01 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

49.48 μg/m³

155

255

425

605+

Ozone (O₃)

44.37 ppb

201

201+

Sulfur Dioxide (SO₂)

0.56 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

6.04 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.24 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
2026-10-20T22:00:00.000Z	44 \| good	6.188 \| good	26.176 \| good	46.627 \| good	0.43 \| good	2.293 \| good	0.216 \| good
2026-10-20T23:00:00.000Z	42 \| good	5.957 \| good	22.641 \| good	45.004 \| good	0.372 \| good	4.111 \| good	0.221 \| good
2026-10-21T00:00:00.000Z	40 \| good	6.335 \| good	28.067 \| good	43.174 \| good	0.285 \| good	7.293 \| good	0.24 \| good
2026-10-21T01:00:00.000Z	44 \| good	8.228 \| good	37.253 \| good	38.35 \| good	0.266 \| good	10.681 \| good	0.245 \| good
2026-10-21T02:00:00.000Z	40 \| good	6.98 \| good	35.29 \| good	42.569 \| good	0.24 \| good	12.277 \| good	0.251 \| good
2026-10-21T03:00:00.000Z	62 \| moderate	14.694 \| fine	65.087 \| fine	23.143 \| good	1.4 \| good	13.007 \| good	0.23 \| good
2026-10-21T04:00:00.000Z	52 \| moderate	9.61 \| good	45.931 \| good	26.614 \| good	0.421 \| good	17.124 \| good	0.269 \| good
2026-10-21T05:00:00.000Z	54 \| moderate	11.43 \| good	56.519 \| fine	25.906 \| good	0.794 \| good	17.442 \| good	0.254 \| good
2026-10-21T06:00:00.000Z	54 \| moderate	10.504 \| good	43.297 \| good	24.052 \| good	0.91 \| good	20.312 \| good	0.248 \| good
2026-10-21T07:00:00.000Z	54 \| moderate	11.079 \| good	50.652 \| good	20.321 \| good	0.813 \| good	19.745 \| good	0.253 \| good
2026-10-21T08:00:00.000Z	54 \| moderate	10.596 \| good	62.24 \| fine	22.102 \| good	0.522 \| good	16.048 \| good	0.232 \| good
2026-10-21T09:00:00.000Z	62 \| moderate	14.591 \| fine	58.632 \| fine	7.528 \| good	0.522 \| good	14.817 \| good	0.227 \| good
2026-10-21T10:00:00.000Z	62 \| moderate	14.634 \| fine	57.993 \| fine	10.127 \| good	0.607 \| good	14.794 \| good	0.253 \| good
2026-10-21T11:00:00.000Z	64 \| moderate	15.693 \| fine	67.639 \| fine	7.564 \| good	0.665 \| good	16.875 \| good	0.295 \| good
2026-10-21T12:00:00.000Z	58 \| moderate	13.287 \| fine	33.494 \| good	5.602 \| good	0.594 \| good	17.163 \| good	0.302 \| good
2026-10-21T13:00:00.000Z	60 \| moderate	13.936 \| fine	55.162 \| fine	11.07 \| good	0.594 \| good	19.028 \| good	0.302 \| good
2026-10-21T14:00:00.000Z	66 \| moderate	16.729 \| fine	60.84 \| fine	9.437 \| good	1.3 \| good	20.416 \| good	0.338 \| good
2026-10-21T15:00:00.000Z	67 \| moderate	17.638 \| fine	56.194 \| fine	11.369 \| good	1.372 \| good	13.865 \| good	0.369 \| good
2026-10-21T16:00:00.000Z	71 \| moderate	19.885 \| fine	79.864 \| fine	15.224 \| good	1.039 \| good	14.072 \| good	0.268 \| good
2026-10-21T17:00:00.000Z	67 \| moderate	17.797 \| fine	67.837 \| fine	28.565 \| good	0.909 \| good	12.05 \| good	0.243 \| good
2026-10-21T18:00:00.000Z	58 \| moderate	13.077 \| fine	39.929 \| good	25.092 \| good	0.931 \| good	7.761 \| good	0.237 \| good
2026-10-21T19:00:00.000Z	56 \| moderate	12.263 \| fine	37.466 \| good	29.321 \| good	0.871 \| good	7.514 \| good	0.237 \| good
2026-10-21T20:00:00.000Z	49 \| good	8.682 \| good	31.339 \| good	43.389 \| good	0.787 \| good	6.607 \| good	0.236 \| good
2026-10-21T21:00:00.000Z	44 \| good	8.227 \| good	27.442 \| good	44.009 \| good	0.828 \| good	7.367 \| good	0.236 \| good
2026-10-21T22:00:00.000Z	49 \| good	9.033 \| good	37.625 \| good	43.189 \| good	0.712 \| good	7.765 \| good	0.236 \| good
2026-10-21T23:00:00.000Z	45 \| good	7.932 \| good	35.25 \| good	49.199 \| good	0.55 \| good	9.874 \| good	0.242 \| good
2026-10-22T00:00:00.000Z	44 \| good	8.399 \| good	35.369 \| good	40.833 \| good	0.472 \| good	4.134 \| good	0.275 \| good
2026-10-22T01:00:00.000Z	52 \| moderate	10.373 \| good	41.778 \| good	36.402 \| good	0.468 \| good	6.212 \| good	0.294 \| good
2026-10-22T02:00:00.000Z	54 \| moderate	11.294 \| good	36.171 \| good	30.173 \| good	0.471 \| good	7.137 \| good	0.308 \| good
2026-10-22T03:00:00.000Z	38 \| good	6.823 \| good	30.091 \| good	22.708 \| good	0.643 \| good	11.082 \| good	0.242 \| good
2026-10-22T04:00:00.000Z	62 \| moderate	14.927 \| fine	43.087 \| good	24.941 \| good	0.388 \| good	9.583 \| good	0.334 \| good
2026-10-22T05:00:00.000Z	75 \| moderate	21.935 \| fine	78.046 \| fine	23.489 \| good	0.419 \| good	10.043 \| good	0.315 \| good
2026-10-22T06:00:00.000Z	73 \| moderate	21.104 \| fine	68.953 \| fine	31.659 \| good	0.406 \| good	11.15 \| good	0.328 \| good
2026-10-22T07:00:00.000Z	69 \| moderate	19.133 \| fine	66.326 \| fine	16.046 \| good	0.405 \| good	12.589 \| good	0.328 \| good
2026-10-22T08:00:00.000Z	64 \| moderate	16.261 \| fine	56.191 \| fine	8.706 \| good	0.382 \| good	13.745 \| good	0.28 \| good
2026-10-22T09:00:00.000Z	66 \| moderate	17.316 \| fine	63.648 \| fine	7.142 \| good	0.319 \| good	18.332 \| good	0.274 \| good
2026-10-22T10:00:00.000Z	66 \| moderate	16.891 \| fine	44.75 \| good	5.917 \| good	0.381 \| good	20.453 \| good	0.268 \| good
2026-10-22T11:00:00.000Z	67 \| moderate	18.473 \| fine	57.974 \| fine	9.107 \| good	0.338 \| good	20.859 \| good	0.344 \| good
2026-10-22T12:00:00.000Z	66 \| moderate	17.458 \| fine	56.602 \| fine	5.793 \| good	0.263 \| good	23.409 \| good	0.353 \| good
2026-10-22T13:00:00.000Z	58 \| moderate	13.027 \| fine	56.016 \| fine	9.563 \| good	0.263 \| good	24.518 \| good	0.331 \| good
2026-10-22T14:00:00.000Z	60 \| moderate	12.843 \| fine	74.144 \| fine	16.93 \| good	0.319 \| good	22.098 \| good	0.359 \| good
2026-10-22T15:00:00.000Z	60 \| moderate	14.055 \| fine	39.138 \| good	11.741 \| good	0.289 \| good	15.633 \| good	0.363 \| good
2026-10-22T16:00:00.000Z	77 \| moderate	13.352 \| fine	106.74 \| fine	18.151 \| good	0.426 \| good	18.139 \| good	0.262 \| good
2026-10-22T17:00:00.000Z	58 \| moderate	13.314 \| fine	29.102 \| good	23.124 \| good	0.457 \| good	11.755 \| good	0.254 \| good
2026-10-22T18:00:00.000Z	54 \| moderate	11.438 \| good	34.453 \| good	29.4 \| good	0.517 \| good	6.939 \| good	0.227 \| good
2026-10-22T19:00:00.000Z	49 \| good	8.957 \| good	27.824 \| good	31.356 \| good	0.554 \| good	6.512 \| good	0.216 \| good
2026-10-22T20:00:00.000Z	44 \| good	8.154 \| good	31.473 \| good	38.161 \| good	0.609 \| good	6.808 \| good	0.216 \| good
2026-10-22T21:00:00.000Z	49 \| good	9.005 \| good	49.478 \| good	44.366 \| good	0.558 \| good	6.042 \| good	0.236 \| good
2026-10-22T21:00:00.000Z	49 \| good	9.005 \| good	49.478 \| good	44.366 \| good	0.558 \| good	6.042 \| good	0.236 \| good
2026-10-22T22:00:00.000Z	44 \| good	4.11 \| good	18.066 \| good	46.881 \| good	0.44 \| good	2.7 \| good	0.176 \| good
2026-10-22T23:00:00.000Z	33 \| good	5.927 \| good	26.784 \| good	36.228 \| good	0.483 \| good	6.377 \| good	0.208 \| good
2026-10-23T00:00:00.000Z	44 \| good	8.372 \| good	37.003 \| good	28.016 \| good	0.539 \| good	9.842 \| good	0.239 \| good
2026-10-23T01:00:00.000Z	54 \| moderate	10.861 \| good	48.069 \| good	21.186 \| good	0.609 \| good	11.863 \| good	0.258 \| good
2026-10-23T02:00:00.000Z	58 \| moderate	13.255 \| fine	59.175 \| fine	20.484 \| good	0.685 \| good	12.895 \| good	0.268 \| good
2026-10-23T03:00:00.000Z	62 \| moderate	15.229 \| fine	68.908 \| fine	20.523 \| good	0.748 \| good	12.927 \| good	0.272 \| good
2026-10-23T04:00:00.000Z	64 \| moderate	16.008 \| fine	71.022 \| fine	21.475 \| good	0.787 \| good	12.74 \| good	0.273 \| good
2026-10-23T05:00:00.000Z	66 \| moderate	16.749 \| fine	74.91 \| fine	21.12 \| good	0.828 \| good	12.273 \| good	0.272 \| good
2026-10-23T06:00:00.000Z	64 \| moderate	16.031 \| fine	71.112 \| fine	23.385 \| good	0.892 \| good	11.923 \| good	0.271 \| good
2026-10-23T07:00:00.000Z	64 \| moderate	15.646 \| fine	69.195 \| fine	21.668 \| good	0.994 \| good	12.11 \| good	0.271 \| good
2026-10-23T08:00:00.000Z	64 \| moderate	15.941 \| fine	71.083 \| fine	19.865 \| good	1.126 \| good	12.757 \| good	0.274 \| good
2026-10-23T09:00:00.000Z	64 \| moderate	16.031 \| fine	71.071 \| fine	17.921 \| good	1.273 \| good	13.675 \| good	0.277 \| good
2026-10-23T10:00:00.000Z	62 \| moderate	15.396 \| fine	69.054 \| fine	18.501 \| good	1.429 \| good	14.618 \| good	0.281 \| good
2026-10-23T11:00:00.000Z	60 \| moderate	14.402 \| fine	64.982 \| fine	15.99 \| good	1.588 \| good	15.581 \| good	0.285 \| good
2026-10-23T12:00:00.000Z	60 \| moderate	14.146 \| fine	63.052 \| fine	15.089 \| good	1.771 \| good	16.833 \| good	0.291 \| good
2026-10-23T13:00:00.000Z	60 \| moderate	14.331 \| fine	64.849 \| fine	17.314 \| good	1.972 \| good	18.106 \| good	0.3 \| good
2026-10-23T14:00:00.000Z	67 \| moderate	17.527 \| fine	77.173 \| fine	20.949 \| good	2.102 \| good	17.322 \| good	0.308 \| good
2026-10-23T15:00:00.000Z	71 \| moderate	19.833 \| fine	87.173 \| fine	26.805 \| good	2.33 \| good	15.994 \| good	0.306 \| good
2026-10-23T16:00:00.000Z	69 \| moderate	19.036 \| fine	84.777 \| fine	33.487 \| good	2.493 \| good	13.961 \| good	0.294 \| good
2026-10-23T17:00:00.000Z	62 \| moderate	15.259 \| fine	68.79 \| fine	42.785 \| good	2.438 \| good	10.393 \| good	0.268 \| good
2026-10-23T18:00:00.000Z	58 \| moderate	13.313 \| fine	60.823 \| fine	49.708 \| good	2.113 \| good	6.531 \| good	0.235 \| good
2026-10-23T19:00:00.000Z	56 \| moderate	12.277 \| fine	55.083 \| fine	51.542 \| good	1.643 \| good	3.331 \| good	0.201 \| good
2026-10-23T20:00:00.000Z	56 \| moderate	11.762 \| good	52.003 \| good	52.064 \| good	1.337 \| good	2.311 \| good	0.186 \| good
2026-10-23T21:00:00.000Z	56 \| moderate	12.24 \| fine	55.117 \| fine	48.623 \| good	1.238 \| good	2.211 \| good	0.181 \| good
2026-10-23T22:00:00.000Z	58 \| moderate	13.044 \| fine	58.925 \| fine	45.706 \| good	1.241 \| good	3.303 \| good	0.188 \| good
2026-10-23T23:00:00.000Z	60 \| moderate	14.408 \| fine	64.981 \| fine	40.935 \| good	1.282 \| good	5.909 \| good	0.207 \| good
2026-10-24T00:00:00.000Z	62 \| moderate	14.649 \| fine	64.988 \| fine	34.194 \| good	1.409 \| good	8.629 \| good	0.226 \| good
2026-10-24T01:00:00.000Z	62 \| moderate	14.564 \| fine	64.95 \| fine	31.159 \| good	1.603 \| good	10.324 \| good	0.237 \| good
2026-10-24T02:00:00.000Z	60 \| moderate	14.073 \| fine	63.052 \| fine	30.517 \| good	1.786 \| good	11.176 \| good	0.245 \| good
2026-10-24T03:00:00.000Z	60 \| moderate	14.283 \| fine	63.265 \| fine	32.709 \| good	1.936 \| good	11.304 \| good	0.248 \| good
2026-10-24T04:00:00.000Z	62 \| moderate	14.992 \| fine	67.083 \| fine	29 \| good	2.053 \| good	10.982 \| good	0.247 \| good
2026-10-24T05:00:00.000Z	64 \| moderate	15.897 \| fine	71.059 \| fine	24.165 \| good	2.134 \| good	10.248 \| good	0.243 \| good
2026-10-24T06:00:00.000Z	66 \| moderate	17.466 \| fine	77.021 \| fine	22.371 \| good	2.156 \| good	9.66 \| good	0.238 \| good
2026-10-24T07:00:00.000Z	66 \| moderate	17.22 \| fine	76.814 \| fine	21.835 \| good	2.133 \| good	9.502 \| good	0.235 \| good
2026-10-24T08:00:00.000Z	64 \| moderate	16.432 \| fine	72.934 \| fine	24.54 \| good	2.068 \| good	9.51 \| good	0.233 \| good
2026-10-24T09:00:00.000Z	64 \| moderate	16.155 \| fine	71.109 \| fine	26.322 \| good	1.965 \| good	9.304 \| good	0.231 \| good
2026-10-24T10:00:00.000Z	64 \| moderate	16.195 \| fine	72.821 \| fine	26.658 \| good	1.802 \| good	8.803 \| good	0.229 \| good
2026-10-24T11:00:00.000Z	62 \| moderate	14.969 \| fine	67 \| fine	25.777 \| good	1.607 \| good	8.096 \| good	0.226 \| good
2026-10-24T12:00:00.000Z	60 \| moderate	14.02 \| fine	63 \| fine	25.8 \| good	1.421 \| good	7.631 \| good	0.223 \| good
2026-10-24T13:00:00.000Z	58 \| moderate	12.83 \| fine	57.173 \| fine	24.496 \| good	1.265 \| good	8.126 \| good	0.224 \| good
2026-10-24T14:00:00.000Z	58 \| moderate	13.44 \| fine	60.932 \| fine	28.394 \| good	1.122 \| good	7.085 \| good	0.227 \| good
2026-10-24T15:00:00.000Z	58 \| moderate	12.584 \| fine	57 \| fine	34.827 \| good	1.083 \| good	5.75 \| good	0.222 \| good
2026-10-24T16:00:00.000Z	54 \| moderate	11.069 \| good	48.966 \| good	39.759 \| good	1.041 \| good	4.562 \| good	0.216 \| good
2026-10-24T17:00:00.000Z	52 \| moderate	10.065 \| good	44.983 \| good	44.117 \| good	1.033 \| good	3.283 \| good	0.205 \| good
2026-10-24T18:00:00.000Z	52 \| moderate	10.046 \| good	44.954 \| good	45.268 \| good	1.053 \| good	2.457 \| good	0.197 \| good
2026-10-24T19:00:00.000Z	52 \| moderate	9.851 \| good	44.039 \| good	45.394 \| good	1.082 \| good	2.002 \| good	0.191 \| good
2026-10-24T20:00:00.000Z	54 \| moderate	10.61 \| good	47.042 \| good	45.114 \| good	1.09 \| good	1.861 \| good	0.187 \| good
2026-10-24T21:00:00.000Z	52 \| moderate	10.374 \| good	46.071 \| good	44.689 \| good	1.076 \| good	1.984 \| good	0.187 \| good

Watertown

Get reliable air quality data to drive your business

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

0.24ppm

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 04:00:00 on 2026-10-22.

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

What is the AQI in Watertown, Wisconsin right now?

As of now, the AQI in Watertown, Wisconsin is 49, indicating Good conditions.

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

Watertown, Wisconsin air has the highest levels of PM2.5.

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 9.005 μg/m³.

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

The PM₁₀ concentration in Watertown, Wisconsin is 49.478 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 0.236 ppm.

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

Currently, Watertown, Wisconsin has a sulfur dioxide (SO₂) concentration of 0.558 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 44.366 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 6.042 ppb.

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