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

The current PM10 levels in Watertown, South Dakota are 7.002 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 0.661 ppb.

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

The current ozone (O3) levels at Watertown, South Dakota is 19.001 ppm.

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

The current nitrogen dioxide (NO2) levels at Watertown, South Dakota is 4.645 ppb.

Real-time 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)

Good

Watertown, South Dakota

Last updated: ... (Local time)

Common air pollutants in Watertown, South Dakota

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

3.30 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

7.00 μg/m³

155

255

425

605+

Ozone (O₃)

19.00 ppb

201

201+

Sulfur Dioxide (SO₂)

0.66 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

4.64 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.28 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
2025-09-04T04:00:00.000Z	52 \| moderate	9.902 \| good	24.001 \| good	18 \| good	0.746 \| good	1.589 \| good	0.301 \| good
2025-09-04T05:00:00.000Z	44 \| good	7.602 \| good	20.001 \| good	16 \| good	0.695 \| good	2.937 \| good	0.301 \| good
2025-09-04T06:00:00.000Z	44 \| good	7.602 \| good	20.001 \| good	15 \| good	0.694 \| good	4.734 \| good	0.261 \| good
2025-09-04T07:00:00.000Z	33 \| good	5.902 \| good	16.001 \| good	13 \| good	0.677 \| good	2.71 \| good	0.261 \| good
2025-09-04T08:00:00.000Z	27 \| good	5.301 \| good	15 \| good	10 \| good	0.66 \| good	2.335 \| good	0.261 \| good
2025-09-04T09:00:00.000Z	27 \| good	4.901 \| good	13 \| good	8 \| good	0.677 \| good	3.954 \| good	0.261 \| good
2025-09-04T10:00:00.000Z	27 \| good	4.601 \| good	13 \| good	7 \| good	0.678 \| good	4.696 \| good	0.241 \| good
2025-09-04T11:00:00.000Z	27 \| good	4.901 \| good	15 \| good	5 \| good	0.572 \| good	6.834 \| good	0.221 \| good
2025-09-04T12:00:00.000Z	27 \| good	4.901 \| good	15 \| good	5 \| good	0.556 \| good	4.8 \| good	0.24 \| good
2025-09-04T13:00:00.000Z	44 \| good	8.06 \| good	35.391 \| good	12.716 \| good	0.082 \| good	3.315 \| good	0.187 \| good
2025-09-04T14:00:00.000Z	49 \| good	9.299 \| good	45.994 \| good	7 \| good	0.641 \| good	4.769 \| good	0.322 \| good
2025-09-04T15:00:00.000Z	49 \| good	8.9 \| good	41.996 \| good	13 \| good	0.607 \| good	3.988 \| good	0.301 \| good
2025-09-04T16:00:00.000Z	44 \| good	8.5 \| good	40.997 \| good	15 \| good	0.606 \| good	6.635 \| good	0.261 \| good
2025-09-04T17:00:00.000Z	64 \| moderate	16.399 \| fine	52.996 \| good	15.001 \| good	0.624 \| good	3.438 \| good	0.221 \| good
2025-09-04T18:00:00.000Z	64 \| moderate	16.4 \| fine	52.997 \| good	18.001 \| good	0.78 \| good	1.937 \| good	0.258 \| good
2025-09-04T19:00:00.000Z	81 \| moderate	24.6 \| fine	57.998 \| fine	21.001 \| good	0.78 \| good	2.138 \| good	0.261 \| good
2025-09-04T20:00:00.000Z	77 \| moderate	22.9 \| fine	54.999 \| good	21.001 \| good	0.676 \| good	2.844 \| good	0.261 \| good
2025-09-04T21:00:00.000Z	81 \| moderate	24.9 \| fine	63 \| fine	21.001 \| good	0.642 \| good	2.505 \| good	0.261 \| good
2025-09-04T22:00:00.000Z	75 \| moderate	22.2 \| fine	78.997 \| fine	22.001 \| good	0.658 \| good	5.726 \| good	0.24 \| good
2025-09-04T23:00:00.000Z	71 \| moderate	20.3 \| fine	92.997 \| fine	25.001 \| good	0.744 \| good	5.343 \| good	0.34 \| good
2025-09-05T00:00:00.000Z	60 \| moderate	13.501 \| fine	70.009 \| fine	24.001 \| good	0.709 \| good	2.659 \| good	0.32 \| good
2025-09-05T01:00:00.000Z	54 \| moderate	10.901 \| good	51.01 \| good	21.001 \| good	0.709 \| good	3.095 \| good	0.32 \| good
2025-09-05T02:00:00.000Z	49 \| good	8.701 \| good	40.006 \| good	21.001 \| good	0.709 \| good	3.553 \| good	0.32 \| good
2025-09-05T03:00:00.000Z	38 \| good	7.101 \| good	30.005 \| good	21.001 \| good	0.692 \| good	3.357 \| good	0.28 \| good
2025-09-05T04:00:00.000Z	33 \| good	5.901 \| good	21.003 \| good	21.001 \| good	0.883 \| good	2.804 \| good	0.26 \| good
2025-09-05T05:00:00.000Z	33 \| good	5.901 \| good	21.003 \| good	20.001 \| good	1.386 \| good	3.286 \| good	0.22 \| good
2025-09-05T06:00:00.000Z	22 \| good	3.501 \| good	12.002 \| good	19.001 \| good	2.202 \| good	2.361 \| good	0.2 \| good
2025-09-05T07:00:00.000Z	17 \| good	3.201 \| good	11.002 \| good	18 \| good	0.831 \| good	1.195 \| good	0.22 \| good
2025-09-05T08:00:00.000Z	16 \| good	3.201 \| good	11.001 \| good	16.001 \| good	0.71 \| good	1.018 \| good	0.22 \| good
2025-09-05T09:00:00.000Z	16 \| good	3.201 \| good	11 \| good	16.001 \| good	0.763 \| good	1.605 \| good	0.2 \| good
2025-09-05T10:00:00.000Z	22 \| good	3.8 \| good	8.001 \| good	15.001 \| good	0.659 \| good	1.969 \| good	0.2 \| good
2025-09-05T11:00:00.000Z	16 \| good	2.6 \| good	6.001 \| good	16.001 \| good	0.625 \| good	2.165 \| good	0.2 \| good
2025-09-05T12:00:00.000Z	15 \| good	2.1 \| good	4 \| good	16.001 \| good	0.624 \| good	3.388 \| good	0.2 \| good
2025-09-05T13:00:00.000Z	16 \| good	2.1 \| good	4 \| good	17.001 \| good	1.804 \| good	3.871 \| good	0.241 \| good
2025-09-05T14:00:00.000Z	17 \| good	3.5 \| good	5.001 \| good	18.001 \| good	3.451 \| good	4.304 \| good	0.22 \| good
2025-09-05T15:00:00.000Z	18 \| good	3 \| good	5.001 \| good	19.001 \| good	1.161 \| good	3.528 \| good	0.221 \| good
2025-09-05T16:00:00.000Z	19 \| good	1.8 \| good	8 \| good	20.002 \| good	3.034 \| good	3.228 \| good	0.221 \| good
2025-09-05T17:00:00.000Z	19 \| good	2.501 \| good	9.001 \| good	20.001 \| good	1.96 \| good	2.54 \| good	0.236 \| good
2025-09-05T18:00:00.000Z	19 \| good	3.2 \| good	8.001 \| good	21.001 \| good	3.292 \| good	2.431 \| good	0.245 \| good
2025-09-05T19:00:00.000Z	17 \| good	3 \| good	6.002 \| good	18.002 \| good	2.221 \| good	2.52 \| good	0.241 \| good
2025-09-05T20:00:00.000Z	17 \| good	2 \| good	8.001 \| good	18.002 \| good	2.76 \| good	2.503 \| good	0.241 \| good
2025-09-05T21:00:00.000Z	17 \| good	0.601 \| good	8.002 \| good	18.002 \| good	3.751 \| good	2.899 \| good	0.241 \| good
2025-09-05T22:00:00.000Z	19 \| good	0.201 \| good	10.002 \| good	20.001 \| good	1.233 \| good	2.838 \| good	0.221 \| good
2025-09-05T23:00:00.000Z	17 \| good	0.8 \| good	11.002 \| good	18.001 \| good	0.764 \| good	2.72 \| good	0.241 \| good
2025-09-06T00:00:00.000Z	17 \| good	1.301 \| good	10.004 \| good	18.001 \| good	0.712 \| good	2.673 \| good	0.22 \| good
2025-09-06T01:00:00.000Z	16 \| good	1.501 \| good	8.003 \| good	17.001 \| good	0.661 \| good	3.675 \| good	0.261 \| good
2025-09-06T02:00:00.000Z	18 \| good	3.3 \| good	7.002 \| good	19.001 \| good	0.661 \| good	4.645 \| good	0.281 \| good
2025-09-06T03:00:00.000Z	18 \| good	3.3 \| good	7.002 \| good	19.001 \| good	0.661 \| good	4.645 \| good	0.281 \| good
2025-09-06T04:00:00.000Z	54 \| moderate	10.622 \| good	46.913 \| good	6.989 \| good	0.034 \| good	2.752 \| good	0.15 \| good
2025-09-06T05:00:00.000Z	56 \| moderate	12.13 \| fine	53.91 \| good	10.968 \| good	0.037 \| good	2.985 \| good	0.151 \| good
2025-09-06T06:00:00.000Z	58 \| moderate	13.078 \| fine	58.442 \| fine	9.445 \| good	0.04 \| good	3.219 \| good	0.151 \| good
2025-09-06T07:00:00.000Z	60 \| moderate	13.789 \| fine	61.959 \| fine	7.895 \| good	0.046 \| good	3.389 \| good	0.151 \| good
2025-09-06T08:00:00.000Z	58 \| moderate	12.736 \| fine	57.155 \| fine	6.832 \| good	0.051 \| good	3.559 \| good	0.151 \| good
2025-09-06T09:00:00.000Z	69 \| moderate	18.724 \| fine	82.803 \| fine	5.365 \| good	0.057 \| good	3.729 \| good	0.152 \| good
2025-09-06T10:00:00.000Z	60 \| moderate	14.328 \| fine	64.087 \| fine	4.967 \| good	0.066 \| good	3.718 \| good	0.154 \| good
2025-09-06T11:00:00.000Z	54 \| moderate	11.029 \| good	48.929 \| good	8.431 \| good	0.074 \| good	3.707 \| good	0.157 \| good
2025-09-06T12:00:00.000Z	49 \| good	8.994 \| good	39.374 \| good	10.968 \| good	0.083 \| good	3.696 \| good	0.159 \| good
2025-09-06T13:00:00.000Z	66 \| moderate	16.714 \| fine	73.868 \| fine	16.365 \| good	0.102 \| good	3.183 \| good	0.166 \| good
2025-09-06T14:00:00.000Z	69 \| moderate	18.777 \| fine	82.845 \| fine	17.422 \| good	0.121 \| good	2.669 \| good	0.173 \| good
2025-09-06T15:00:00.000Z	81 \| moderate	25.283 \| fine	110.137 \| fine	19.625 \| good	0.14 \| good	2.156 \| good	0.18 \| good
2025-09-06T16:00:00.000Z	102 \| sensitive	35.628 \| moderate	155.037 \| moderate	19.556 \| good	0.12 \| good	1.61 \| good	0.201 \| good
2025-09-06T17:00:00.000Z	102 \| sensitive	35.871 \| moderate	155.998 \| moderate	21.12 \| good	0.1 \| good	1.064 \| good	0.221 \| good
2025-09-06T18:00:00.000Z	94 \| moderate	32.257 \| fine	139.887 \| fine	22.673 \| good	0.08 \| good	0.518 \| good	0.241 \| good
2025-09-06T19:00:00.000Z	99 \| moderate	34.519 \| fine	149.169 \| fine	23.519 \| good	0.076 \| good	0.511 \| good	0.244 \| good
2025-09-06T20:00:00.000Z	102 \| sensitive	35.862 \| moderate	156.795 \| moderate	24.781 \| good	0.071 \| good	0.503 \| good	0.246 \| good
2025-09-06T21:00:00.000Z	88 \| moderate	28.89 \| fine	125.226 \| fine	27.191 \| good	0.067 \| good	0.496 \| good	0.249 \| good
2025-09-06T22:00:00.000Z	82 \| moderate	25.509 \| fine	111.156 \| fine	30.279 \| good	0.055 \| good	0.683 \| good	0.249 \| good
2025-09-06T23:00:00.000Z	71 \| moderate	20.159 \| fine	88.958 \| fine	29.085 \| good	0.043 \| good	0.87 \| good	0.249 \| good
2025-09-07T00:00:00.000Z	75 \| moderate	22.142 \| fine	97.085 \| fine	25.419 \| good	0.031 \| good	1.056 \| good	0.249 \| good
2025-09-07T01:00:00.000Z	73 \| moderate	20.723 \| fine	91.007 \| fine	18.416 \| good	0.033 \| good	2.127 \| good	0.256 \| good
2025-09-07T02:00:00.000Z	69 \| moderate	19.274 \| fine	85.133 \| fine	13.65 \| good	0.034 \| good	3.197 \| good	0.262 \| good
2025-09-07T03:00:00.000Z	66 \| moderate	17.357 \| fine	77.084 \| fine	10.556 \| good	0.036 \| good	4.267 \| good	0.269 \| good
2025-09-07T04:00:00.000Z	58 \| moderate	13.471 \| fine	60.292 \| fine	8.29 \| good	0.049 \| good	5.067 \| good	0.273 \| good
2025-09-07T05:00:00.000Z	64 \| moderate	16.171 \| fine	71.235 \| fine	9.374 \| good	0.062 \| good	5.866 \| good	0.276 \| good
2025-09-07T06:00:00.000Z	71 \| moderate	19.997 \| fine	88.844 \| fine	6.942 \| good	0.074 \| good	6.666 \| good	0.279 \| good
2025-09-07T07:00:00.000Z	67 \| moderate	17.992 \| fine	79.08 \| fine	5.705 \| good	0.091 \| good	7.308 \| good	0.28 \| good
2025-09-07T08:00:00.000Z	73 \| moderate	20.935 \| fine	91.876 \| fine	5.543 \| good	0.108 \| good	7.95 \| good	0.282 \| good
2025-09-07T09:00:00.000Z	81 \| moderate	24.77 \| fine	108.041 \| fine	4.115 \| good	0.124 \| good	8.592 \| good	0.283 \| good
2025-09-07T10:00:00.000Z	71 \| moderate	20.432 \| fine	89.873 \| fine	5.019 \| good	0.134 \| good	8.851 \| good	0.284 \| good
2025-09-07T11:00:00.000Z	73 \| moderate	21.327 \| fine	93.859 \| fine	5.642 \| good	0.143 \| good	9.111 \| good	0.285 \| good
2025-09-07T12:00:00.000Z	75 \| moderate	22.13 \| fine	97.607 \| fine	3.795 \| good	0.152 \| good	9.37 \| good	0.286 \| good
2025-09-07T13:00:00.000Z	71 \| moderate	20.365 \| fine	89.645 \| fine	8.811 \| good	0.131 \| good	6.831 \| good	0.274 \| good
2025-09-07T14:00:00.000Z	69 \| moderate	18.665 \| fine	81.984 \| fine	13.349 \| good	0.11 \| good	4.292 \| good	0.262 \| good
2025-09-07T15:00:00.000Z	73 \| moderate	20.59 \| fine	90.753 \| fine	19.059 \| good	0.089 \| good	1.752 \| good	0.25 \| good
2025-09-07T16:00:00.000Z	77 \| moderate	22.923 \| fine	100.753 \| fine	23.823 \| good	0.077 \| good	1.297 \| good	0.236 \| good
2025-09-07T17:00:00.000Z	82 \| moderate	25.678 \| fine	111.866 \| fine	30.252 \| good	0.064 \| good	0.842 \| good	0.222 \| good
2025-09-07T18:00:00.000Z	75 \| moderate	21.806 \| fine	95.222 \| fine	34.67 \| good	0.052 \| good	0.387 \| good	0.208 \| good
2025-09-07T19:00:00.000Z	73 \| moderate	21.023 \| fine	92.716 \| fine	36.053 \| good	0.072 \| good	0.391 \| good	0.207 \| good
2025-09-07T20:00:00.000Z	67 \| moderate	18.494 \| fine	81.864 \| fine	35.842 \| good	0.092 \| good	0.395 \| good	0.206 \| good
2025-09-07T21:00:00.000Z	62 \| moderate	15.495 \| fine	69.047 \| fine	37.663 \| good	0.111 \| good	0.399 \| good	0.205 \| good
2025-09-07T22:00:00.000Z	62 \| moderate	15.042 \| fine	67.096 \| fine	33.787 \| good	0.125 \| good	0.732 \| good	0.207 \| good
2025-09-07T23:00:00.000Z	54 \| moderate	11.298 \| good	50.067 \| good	32.827 \| good	0.14 \| good	1.065 \| good	0.209 \| good
2025-09-08T00:00:00.000Z	38 \| good	3.623 \| good	3.69 \| good	40.777 \| good	0.154 \| good	1.398 \| good	0.211 \| good
2025-09-08T01:00:00.000Z	56 \| moderate	11.945 \| good	53.113 \| good	18.982 \| good	0.166 \| good	2.037 \| good	0.214 \| good
2025-09-08T02:00:00.000Z	64 \| moderate	15.726 \| fine	70.018 \| fine	17.973 \| good	0.178 \| good	2.676 \| good	0.217 \| good
2025-09-08T03:00:00.000Z	60 \| moderate	14.496 \| fine	65 \| fine	18.44 \| good	0.19 \| good	3.314 \| good	0.22 \| good

Watertown

Empower business decisions with accurate air quality data

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

0.30ppm

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 03:00:00 on 2025-09-05.

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 12:00:00 on 2025-09-05.

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

The real-time air quality index in Watertown, South Dakota is 18, currently categorized as Good.

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

The most common pollutant in Watertown, South Dakota is O3.

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 3.3 μg/m³.

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

The current PM₁₀ levels in Watertown, South Dakota are 7.002 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 0.281 ppm.

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

The current sulfur dioxide (SO₂) levels in Watertown, South Dakota are 0.661 ppb.

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

The current ozone (O₃) levels at Watertown, South Dakota is 19.001 ppm.

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

The current nitrogen dioxide (NO₂) levels at Watertown, South Dakota is 4.645 ppb.

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