What are the current PM10 levels at Watertown, South Dakota?

The current PM10 levels in Watertown, South Dakota are 56.003 μg/m3.

What are the current sulfur dioxide (SO2) levels at Watertown, South Dakota?

The current sulfur dioxide (SO2) levels in Watertown, South Dakota are 0.826 ppb.

What are the current ozone (O3) levels at Watertown, South Dakota?

The current ozone (O3) levels at Watertown, South Dakota is 40 ppm.

What are the current nitrogen dioxide (NO2) levels at Watertown, South Dakota?

The current nitrogen dioxide (NO2) levels at Watertown, South Dakota is 6.541 ppb.

Live air quality index in Watertown, South Dakota today

Name: Live air pollution levels in Watertown, South Dakota today
Creator: Ambee

Stay updated with real-time air quality in Watertown, South Dakota 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

Watertown, South Dakota

Last updated: ... (Local time)

Major air pollutants in Watertown, South Dakota

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

28.40 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

56.00 μg/m³

155

255

425

605+

Ozone (O₃)

40.00 ppb

201

201+

Sulfur Dioxide (SO₂)

0.83 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

6.54 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.26 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, South Dakota

Scroll To Air Quality Map

Track live Watertown, South Dakota air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-06-01T01:00:00.000Z	170 \| unhealthy	81.793 \| poor	110.994 \| fine	51.002 \| good	0.867 \| good	6.682 \| good	0.3 \| good
2025-06-01T02:00:00.000Z	159 \| unhealthy	66.997 \| poor	93.001 \| fine	51.001 \| good	1.504 \| good	8.349 \| good	0.379 \| good
2025-06-01T03:00:00.000Z	52 \| moderate	10.337 \| good	45.609 \| good	29.067 \| good	0.198 \| good	6.942 \| good	0.214 \| good
2025-06-01T04:00:00.000Z	159 \| unhealthy	66.797 \| poor	118.996 \| fine	40.002 \| good	1.081 \| good	16.139 \| good	0.439 \| good
2025-06-01T05:00:00.000Z	160 \| unhealthy	69.497 \| poor	114.997 \| fine	30.003 \| good	0.824 \| good	13.854 \| good	0.419 \| good
2025-06-01T06:00:00.000Z	160 \| unhealthy	69.497 \| poor	114.997 \| fine	21.003 \| good	1.975 \| good	10.174 \| good	0.38 \| good
2025-06-01T07:00:00.000Z	162 \| unhealthy	70.597 \| poor	102.998 \| fine	16.003 \| good	0.742 \| good	8.501 \| good	0.3 \| good
2025-06-01T08:00:00.000Z	160 \| unhealthy	68.897 \| poor	96.999 \| fine	13.003 \| good	0.878 \| good	6.004 \| good	0.28 \| good
2025-06-01T09:00:00.000Z	160 \| unhealthy	69.297 \| poor	91 \| fine	10.002 \| good	0.931 \| good	6.191 \| good	0.24 \| good
2025-06-01T10:00:00.000Z	156 \| unhealthy	63.498 \| poor	83 \| fine	6.002 \| good	0.928 \| good	8.208 \| good	0.22 \| good
2025-06-01T11:00:00.000Z	152 \| unhealthy	57.399 \| poor	77 \| fine	2.003 \| good	0.911 \| good	9.046 \| good	0.241 \| good
2025-06-01T12:00:00.000Z	142 \| sensitive	51.6 \| moderate	68.001 \| fine	2.002 \| good	0.912 \| good	9.792 \| good	0.301 \| good
2025-06-01T13:00:00.000Z	139 \| sensitive	51.5 \| moderate	70.001 \| fine	8.002 \| good	0.776 \| good	7.77 \| good	0.281 \| good
2025-06-01T14:00:00.000Z	147 \| sensitive	53.899 \| moderate	77 \| fine	13.001 \| good	0.842 \| good	6.781 \| good	0.3 \| good
2025-06-01T16:00:00.000Z	164 \| unhealthy	74.096 \| poor	107.995 \| fine	31.001 \| good	1.14 \| good	6.446 \| good	0.341 \| good
2025-06-01T17:00:00.000Z	180 \| unhealthy	96.893 \| poor	135.992 \| fine	31.001 \| good	1.335 \| good	5.412 \| good	0.341 \| good
2025-06-01T18:00:00.000Z	186 \| unhealthy	105.094 \| poor	146.994 \| fine	38.002 \| good	1.539 \| good	5.101 \| good	0.381 \| good
2025-06-01T19:00:00.000Z	185 \| unhealthy	103.796 \| poor	138.996 \| fine	48.002 \| good	2.217 \| good	4.028 \| good	0.3 \| good
2025-06-01T20:00:00.000Z	175 \| unhealthy	89.798 \| poor	120.999 \| fine	58.001 \| fine	0.79 \| good	3.576 \| good	0.28 \| good
2025-06-01T21:00:00.000Z	163 \| unhealthy	73.2 \| poor	114.999 \| fine	58.002 \| fine	0.792 \| good	3.704 \| good	0.26 \| good
2025-06-01T22:00:00.000Z	159 \| unhealthy	67.2 \| poor	104 \| fine	59.002 \| fine	0.809 \| good	3.758 \| good	0.26 \| good
2025-06-01T23:00:00.000Z	155 \| unhealthy	61.3 \| poor	91.001 \| fine	61.002 \| fine	0.809 \| good	3.463 \| good	0.28 \| good
2025-06-02T00:00:00.000Z	149 \| sensitive	54.7 \| moderate	85.001 \| fine	60.002 \| fine	0.809 \| good	3.196 \| good	0.3 \| good
2025-06-02T01:00:00.000Z	129 \| sensitive	46.601 \| moderate	79.003 \| fine	59.002 \| fine	0.844 \| good	6.539 \| good	0.379 \| good
2025-06-02T02:00:00.000Z	110 \| sensitive	39.001 \| moderate	73.002 \| fine	52.001 \| good	0.777 \| good	7.603 \| good	0.38 \| good
2025-06-02T03:00:00.000Z	90 \| moderate	30.202 \| fine	82.003 \| fine	47.002 \| good	0.844 \| good	11.294 \| good	0.36 \| good
2025-06-02T04:00:00.000Z	84 \| moderate	26.902 \| fine	64.006 \| fine	46.001 \| good	0.828 \| good	10.993 \| good	0.34 \| good
2025-06-02T05:00:00.000Z	86 \| moderate	27.902 \| fine	61.005 \| fine	46.001 \| good	0.843 \| good	9.337 \| good	0.28 \| good
2025-06-02T06:00:00.000Z	86 \| moderate	28.401 \| fine	56.003 \| fine	40 \| good	0.826 \| good	6.541 \| good	0.26 \| good
2025-06-02T07:00:00.000Z	88 \| moderate	28.701 \| fine	53.002 \| good	38 \| good	0.775 \| good	4.915 \| good	0.221 \| good
2025-06-02T08:00:00.000Z	82 \| moderate	26.401 \| fine	54 \| good	33.001 \| good	0.758 \| good	4.772 \| good	0.181 \| good
2025-06-02T09:00:00.000Z	84 \| moderate	27.1 \| fine	52 \| good	33.001 \| good	0.758 \| good	6.808 \| good	0.181 \| good
2025-06-02T10:00:00.000Z	88 \| moderate	28.899 \| fine	48.999 \| good	27.002 \| good	0.759 \| good	6.052 \| good	0.201 \| good
2025-06-02T11:00:00.000Z	88 \| moderate	28.599 \| fine	44.999 \| good	27.002 \| good	0.911 \| good	6.709 \| good	0.22 \| good
2025-06-02T12:00:00.000Z	88 \| moderate	28.599 \| fine	44.999 \| good	27.002 \| good	0.912 \| good	10.631 \| good	0.22 \| good
2025-06-02T13:00:00.000Z	82 \| moderate	25.999 \| fine	56.996 \| fine	31.002 \| good	0.912 \| good	13.714 \| good	0.22 \| good
2025-06-02T14:00:00.000Z	82 \| moderate	25.899 \| fine	96.991 \| fine	32.002 \| good	0.912 \| good	8.679 \| good	0.22 \| good
2025-06-02T15:00:00.000Z	75 \| moderate	21.899 \| fine	94.993 \| fine	34.002 \| good	0.863 \| good	4.637 \| good	0.24 \| good
2025-06-02T16:00:00.000Z	73 \| moderate	17.099 \| fine	98.993 \| fine	37.002 \| good	0.794 \| good	3.668 \| good	0.22 \| good
2025-06-02T17:00:00.000Z	78 \| moderate	18.899 \| fine	109.993 \| fine	39.003 \| good	0.811 \| good	4.698 \| good	0.22 \| good
2025-06-02T18:00:00.000Z	82 \| moderate	18.399 \| fine	117.991 \| fine	42.003 \| good	0.827 \| good	4.045 \| good	0.22 \| good
2025-06-02T19:00:00.000Z	82 \| moderate	18.399 \| fine	117.995 \| fine	43.003 \| good	0.845 \| good	3.228 \| good	0.22 \| good
2025-06-02T20:00:00.000Z	73 \| moderate	18.4 \| fine	99.999 \| fine	43.003 \| good	0.86 \| good	3.462 \| good	0.2 \| good
2025-06-02T21:00:00.000Z	75 \| moderate	21.599 \| fine	95.001 \| fine	43.003 \| good	0.828 \| good	3.523 \| good	0.234 \| good
2025-06-02T22:00:00.000Z	66 \| moderate	15.7 \| fine	85.003 \| fine	58.555 \| fine	0.76 \| good	3.445 \| good	0.234 \| good
2025-06-02T23:00:00.000Z	66 \| moderate	15.701 \| fine	85.004 \| fine	49.001 \| good	0.949 \| good	3.454 \| good	0.2 \| good
2025-06-02T06:00:00.000Z	86 \| moderate	28.401 \| fine	56.003 \| fine	40 \| good	0.826 \| good	6.541 \| good	0.26 \| good
2025-06-02T07:00:00.000Z	54 \| moderate	11.074 \| good	48.853 \| good	12.426 \| good	0.097 \| good	2.478 \| good	0.171 \| good
2025-06-02T08:00:00.000Z	44 \| good	7.914 \| good	34.853 \| good	12.686 \| good	0.102 \| good	2.501 \| good	0.174 \| good
2025-06-02T09:00:00.000Z	49 \| good	8.75 \| good	38.113 \| good	10.978 \| good	0.107 \| good	2.525 \| good	0.177 \| good
2025-06-02T10:00:00.000Z	44 \| good	7.752 \| good	34.012 \| good	14.417 \| good	0.101 \| good	2.373 \| good	0.173 \| good
2025-06-02T11:00:00.000Z	44 \| good	7.889 \| good	34.531 \| good	19.61 \| good	0.106 \| good	2.351 \| good	0.175 \| good
2025-06-02T12:00:00.000Z	52 \| moderate	10.273 \| good	45.433 \| good	20.703 \| good	0.111 \| good	2.328 \| good	0.178 \| good
2025-06-02T13:00:00.000Z	56 \| moderate	12.011 \| good	53.906 \| good	25.01 \| good	0.071 \| good	1.354 \| good	0.148 \| good
2025-06-02T14:00:00.000Z	62 \| moderate	15.162 \| fine	67.826 \| fine	36.369 \| good	0.075 \| good	1.369 \| good	0.149 \| good
2025-06-02T15:00:00.000Z	66 \| moderate	16.513 \| fine	73 \| fine	41.79 \| good	0.078 \| good	1.385 \| good	0.151 \| good
2025-06-02T16:00:00.000Z	75 \| moderate	21.878 \| fine	95.896 \| fine	44.42 \| good	0.07 \| good	0.516 \| good	0.135 \| good
2025-06-02T17:00:00.000Z	77 \| moderate	22.826 \| fine	100.795 \| fine	46.516 \| good	0.072 \| good	0.52 \| good	0.135 \| good
2025-06-02T18:00:00.000Z	73 \| moderate	21.451 \| fine	94.819 \| fine	46.421 \| good	0.074 \| good	0.524 \| good	0.135 \| good
2025-06-02T19:00:00.000Z	77 \| moderate	23.274 \| fine	101.816 \| fine	42.926 \| good	0.096 \| good	0.415 \| good	0.134 \| good
2025-06-02T20:00:00.000Z	77 \| moderate	22.752 \| fine	99.795 \| fine	47.619 \| good	0.096 \| good	0.412 \| good	0.134 \| good
2025-06-02T21:00:00.000Z	77 \| moderate	23.369 \| fine	102.795 \| fine	51.33 \| good	0.096 \| good	0.41 \| good	0.135 \| good
2025-06-02T22:00:00.000Z	69 \| moderate	18.876 \| fine	83.024 \| fine	52.927 \| good	0.082 \| good	1.404 \| good	0.166 \| good
2025-06-02T23:00:00.000Z	62 \| moderate	15.366 \| fine	68.706 \| fine	49.142 \| good	0.083 \| good	1.502 \| good	0.163 \| good
2025-06-03T00:00:00.000Z	42 \| good	4.171 \| good	18.391 \| good	45.366 \| good	0.084 \| good	1.599 \| good	0.161 \| good
2025-06-03T01:00:00.000Z	71 \| moderate	3.102 \| good	13.018 \| good	60.563 \| fine	0.07 \| good	1.092 \| good	0.158 \| good
2025-06-03T02:00:00.000Z	44 \| good	7.659 \| good	34 \| good	47.409 \| good	0.073 \| good	1.124 \| good	0.161 \| good
2025-06-03T03:00:00.000Z	82 \| moderate	25.95 \| fine	113.193 \| fine	37.513 \| good	0.076 \| good	1.156 \| good	0.164 \| good
2025-06-03T04:00:00.000Z	102 \| sensitive	35.96 \| moderate	156.847 \| moderate	30.745 \| good	0.09 \| good	1.101 \| good	0.161 \| good
2025-06-03T05:00:00.000Z	99 \| moderate	34.96 \| fine	152.136 \| fine	29.927 \| good	0.088 \| good	1.115 \| good	0.16 \| good
2025-06-03T06:00:00.000Z	97 \| moderate	33.836 \| fine	145.913 \| fine	28.254 \| good	0.085 \| good	1.13 \| good	0.159 \| good
2025-06-03T07:00:00.000Z	97 \| moderate	33.534 \| fine	144.848 \| fine	24.388 \| good	0.135 \| good	1.236 \| good	0.199 \| good
2025-06-03T08:00:00.000Z	118 \| sensitive	42.411 \| moderate	188.711 \| moderate	23.016 \| good	0.133 \| good	1.217 \| good	0.199 \| good
2025-06-03T09:00:00.000Z	139 \| sensitive	51.082 \| moderate	231.553 \| moderate	25.222 \| good	0.131 \| good	1.197 \| good	0.198 \| good
2025-06-03T10:00:00.000Z	153 \| unhealthy	58.871 \| poor	258.706 \| poor	26.356 \| good	0.248 \| good	1.876 \| good	0.186 \| good
2025-06-03T11:00:00.000Z	151 \| unhealthy	55.996 \| poor	254.554 \| moderate	27.352 \| good	0.217 \| good	1.815 \| good	0.19 \| good
2025-06-03T12:00:00.000Z	150 \| sensitive	55.306 \| moderate	253.337 \| moderate	22.133 \| good	0.186 \| good	1.753 \| good	0.193 \| good
2025-06-03T13:00:00.000Z	139 \| sensitive	50.935 \| moderate	230.058 \| moderate	22.713 \| good	0.382 \| good	2.004 \| good	0.161 \| good
2025-06-03T14:00:00.000Z	132 \| sensitive	48.395 \| moderate	218.132 \| moderate	30.619 \| good	0.354 \| good	2.056 \| good	0.164 \| good
2025-06-03T15:00:00.000Z	117 \| sensitive	41.888 \| moderate	185.949 \| moderate	35.181 \| good	0.326 \| good	2.109 \| good	0.167 \| good
2025-06-03T16:00:00.000Z	92 \| moderate	30.66 \| fine	132.755 \| fine	34.638 \| good	0.305 \| good	0.788 \| good	0.166 \| good
2025-06-03T17:00:00.000Z	79 \| moderate	23.553 \| fine	102.932 \| fine	30.957 \| good	0.288 \| good	0.838 \| good	0.168 \| good
2025-06-03T18:00:00.000Z	71 \| moderate	20.343 \| fine	89.142 \| fine	34.77 \| good	0.271 \| good	0.887 \| good	0.17 \| good
2025-06-03T19:00:00.000Z	73 \| moderate	21.084 \| fine	92.73 \| fine	36.908 \| good	0.188 \| good	0.432 \| good	0.147 \| good
2025-06-03T20:00:00.000Z	75 \| moderate	21.715 \| fine	95.69 \| fine	38.543 \| good	0.188 \| good	0.461 \| good	0.149 \| good
2025-06-03T21:00:00.000Z	77 \| moderate	22.591 \| fine	98.875 \| fine	38.369 \| good	0.188 \| good	0.49 \| good	0.151 \| good
2025-06-03T22:00:00.000Z	58 \| moderate	13.177 \| fine	59 \| fine	34.484 \| good	0.131 \| good	0.802 \| good	0.16 \| good
2025-06-03T23:00:00.000Z	69 \| moderate	18.709 \| fine	82.241 \| fine	38.029 \| good	0.126 \| good	0.86 \| good	0.159 \| good
2025-06-04T00:00:00.000Z	52 \| moderate	9.708 \| good	9.924 \| good	45.216 \| good	0.121 \| good	0.916 \| good	0.158 \| good
2025-06-04T01:00:00.000Z	32 \| good	2.911 \| good	12.022 \| good	34.577 \| good	0.136 \| good	2.672 \| good	0.183 \| good
2025-06-04T02:00:00.000Z	52 \| moderate	10.174 \| good	44.977 \| good	30.781 \| good	0.127 \| good	2.785 \| good	0.183 \| good
2025-06-04T03:00:00.000Z	54 \| moderate	10.53 \| good	46.864 \| good	21.413 \| good	0.118 \| good	2.898 \| good	0.183 \| good
2025-06-04T04:00:00.000Z	44 \| good	8.419 \| good	36.878 \| good	14.752 \| good	0.185 \| good	3.386 \| good	0.184 \| good
2025-06-04T05:00:00.000Z	62 \| moderate	14.602 \| fine	64.951 \| fine	9.787 \| good	0.174 \| good	3.201 \| good	0.183 \| good
2025-06-04T06:00:00.000Z	52 \| moderate	10.165 \| good	10.308 \| good	35.72 \| good	0.164 \| good	3.016 \| good	0.182 \| good

Watertown

Empower business decisions with accurate air quality data

Watertown, South Dakota air quality map: Real-time AQI near you

0.28ppm

How accurate is South Dakota, USA air quality data?

Air quality measurements for South Dakota, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.

Source: Ambee Data Sources

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Frequently asked questions

How frequently is the air quality data for Watertown, South Dakota updated?

Air quality data for Watertown, South Dakota is updated on an hourly basis.

When did Watertown, South Dakota experience the worst air quality in the last 24 hours?

The worst air quality in Watertown, South Dakota was recorded at 06:00:00 on 2025-06-01.

When did Watertown, South Dakota have its best air quality in the last 24 hours?

The best air quality in Watertown, South Dakota was recorded at 04:00:00 on 2025-06-02.

What is the real-time air quality index for Watertown, South Dakota?

The real-time air quality index in Watertown, South Dakota is 86, currently categorized as Moderate.

Which pollutant is found most often in Watertown, South Dakota?

The most common pollutant in Watertown, South Dakota is PM2.5.

What can I do if the air quality in Watertown, South Dakota is poor?

If the air quality in Watertown, South Dakota is poor, limit outdoor activities and use a mask to safeguard your health.

What are the current PM_2.5 levels in Watertown, South Dakota?

The measured PM_2.5 levels in Watertown, South Dakota at present are 28.401 μg/m³.

What are the current PM₁₀ levels at Watertown, South Dakota?

The current PM₁₀ levels in Watertown, South Dakota are 56.003 μg/m³.

What are the current carbon monoxide (CO) levels at Watertown, South Dakota?

The current carbon monoxide (CO) level in Watertown, South Dakota is 0.26 ppm.

What are the current sulfur dioxide (SO₂) levels at Watertown, South Dakota?

The current sulfur dioxide (SO₂) levels in Watertown, South Dakota are 0.826 ppb.

What are the current ozone (O₃) levels at Watertown, South Dakota?

The current ozone (O₃) levels at Watertown, South Dakota is 40 ppm.

What are the current nitrogen dioxide (NO₂) levels at Watertown, South Dakota?

The current nitrogen dioxide (NO₂) levels at Watertown, South Dakota is 6.541 ppb.

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