What is the current concentration of PM10 in Williston, North Dakota?

The current PM10 concentration at Williston, North Dakota is 10 μg/m3.

What is the current concentration of sulfur dioxide (SO2) in Williston, North Dakota?

The current sulfur dioxide (SO2) concentration at Williston, North Dakota is 0.326 ppb.

What is the current concentration of ozone (O3) in Williston, North Dakota?

The current ozone (O3) concentration at Williston, North Dakota is 28.877 ppm.

What is the current concentration of nitrogen dioxide (NO2) in Williston, North Dakota?

The current nitrogen dioxide (NO2) concentration at Williston, North Dakota is 0.602 ppb.

Williston, North Dakota live air quality index now

Q: What is the current concentration of PM2.5 in Williston, North Dakota?

The current PM2.5 concentration at Williston, North Dakota is 2.466 μg/m3.

Stay updated with real-time air quality in Williston, North 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

Williston, North Dakota

Last updated: ... (Local time)

Major air pollutants in Williston, North Dakota

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

2.47 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

10.00 μg/m³

155

255

425

605+

Ozone (O₃)

28.88 ppb

201

201+

Sulfur Dioxide (SO₂)

0.33 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

0.60 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.15 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

Williston, North Dakota

Get Live Pollen Counts

Williston, North Dakota

Scroll To Air Quality Map

Track live Williston, North Dakota air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-04-22T05:00:00.000Z	27 \| good	2.692 \| good	11.119 \| good	28.817 \| good	0.444 \| good	4.991 \| good	0.165 \| good
2026-04-22T06:00:00.000Z	24 \| good	2.678 \| good	10.818 \| good	26.03 \| good	0.478 \| good	4.506 \| good	0.16 \| good
2026-04-22T07:00:00.000Z	23 \| good	2.922 \| good	12.018 \| good	24.61 \| good	0.499 \| good	4.241 \| good	0.155 \| good
2026-04-22T08:00:00.000Z	22 \| good	3.568 \| good	15.537 \| good	23.96 \| good	0.527 \| good	3.7 \| good	0.152 \| good
2026-04-22T09:00:00.000Z	22 \| good	3.611 \| good	15.748 \| good	23.591 \| good	0.528 \| good	3.424 \| good	0.15 \| good
2026-04-22T10:00:00.000Z	22 \| good	3.761 \| good	17.279 \| good	22 \| good	0.468 \| good	3.375 \| good	0.15 \| good
2026-04-22T11:00:00.000Z	22 \| good	3.937 \| good	16.881 \| good	20.489 \| good	0.409 \| good	3.231 \| good	0.151 \| good
2026-04-22T12:00:00.000Z	22 \| good	3.683 \| good	16.451 \| good	18.863 \| good	0.36 \| good	3.138 \| good	0.154 \| good
2026-04-22T13:00:00.000Z	20 \| good	3.423 \| good	15.287 \| good	21.548 \| good	0.313 \| good	2.497 \| good	0.143 \| good
2026-04-22T14:00:00.000Z	22 \| good	3.098 \| good	12.575 \| good	23.727 \| good	0.289 \| good	2.434 \| good	0.143 \| good
2026-04-22T15:00:00.000Z	26 \| good	3.324 \| good	14.386 \| good	28.416 \| good	0.255 \| good	2.335 \| good	0.143 \| good
2026-04-22T16:00:00.000Z	31 \| good	3.504 \| good	15.391 \| good	32.688 \| good	0.259 \| good	1.893 \| good	0.142 \| good
2026-04-22T17:00:00.000Z	36 \| good	3.419 \| good	15.357 \| good	38.917 \| good	0.287 \| good	1.418 \| good	0.14 \| good
2026-04-22T18:00:00.000Z	37 \| good	3.78 \| good	16.577 \| good	40.057 \| good	0.247 \| good	1.041 \| good	0.138 \| good
2026-04-22T19:00:00.000Z	41 \| good	3.652 \| good	17.082 \| good	43.8 \| good	0.318 \| good	0.924 \| good	0.138 \| good
2026-04-22T20:00:00.000Z	45 \| good	3.767 \| good	17.62 \| good	48.968 \| good	0.415 \| good	0.765 \| good	0.141 \| good
2026-04-22T21:00:00.000Z	49 \| good	3.904 \| good	19.141 \| good	53.328 \| good	0.481 \| good	0.646 \| good	0.142 \| good
2026-04-22T22:00:00.000Z	54 \| moderate	4.021 \| good	19.64 \| good	56.414 \| fine	0.464 \| good	0.727 \| good	0.144 \| good
2026-04-22T23:00:00.000Z	51 \| moderate	4.044 \| good	18.7 \| good	55.439 \| fine	0.449 \| good	0.826 \| good	0.148 \| good
2026-04-23T00:00:00.000Z	45 \| good	4.139 \| good	18.448 \| good	49.114 \| good	0.436 \| good	0.951 \| good	0.151 \| good
2026-04-23T01:00:00.000Z	46 \| good	7.565 \| good	32.826 \| good	49.649 \| good	0.379 \| good	1.091 \| good	0.14 \| good
2026-04-23T02:00:00.000Z	44 \| good	4.787 \| good	20.833 \| good	47.664 \| good	0.337 \| good	1.259 \| good	0.137 \| good
2026-04-23T03:00:00.000Z	39 \| good	5.072 \| good	21.626 \| good	41.627 \| good	0.299 \| good	1.595 \| good	0.136 \| good
2026-04-23T04:00:00.000Z	34 \| good	6.24 \| good	27.629 \| good	36.893 \| good	0.269 \| good	1.433 \| good	0.134 \| good
2026-04-23T05:00:00.000Z	38 \| good	6.889 \| good	26.868 \| good	34.953 \| good	0.246 \| good	1.36 \| good	0.129 \| good
2026-04-23T06:00:00.000Z	33 \| good	4.668 \| good	20.758 \| good	35.599 \| good	0.221 \| good	1.334 \| good	0.125 \| good
2026-04-23T07:00:00.000Z	33 \| good	4.03 \| good	20.56 \| good	36.399 \| good	0.234 \| good	1.127 \| good	0.121 \| good
2026-04-23T08:00:00.000Z	31 \| good	4.026 \| good	17.487 \| good	34.026 \| good	0.225 \| good	0.87 \| good	0.117 \| good
2026-04-23T09:00:00.000Z	29 \| good	3.253 \| good	14.285 \| good	30.926 \| good	0.228 \| good	0.696 \| good	0.113 \| good
2026-04-23T10:00:00.000Z	31 \| good	2.752 \| good	11.442 \| good	32.56 \| good	0.214 \| good	0.742 \| good	0.115 \| good
2026-04-23T11:00:00.000Z	32 \| good	2.689 \| good	11.461 \| good	34.797 \| good	0.201 \| good	1.091 \| good	0.117 \| good
2026-04-23T12:00:00.000Z	33 \| good	2.888 \| good	12.265 \| good	36.181 \| good	0.213 \| good	1.023 \| good	0.113 \| good
2026-04-23T13:00:00.000Z	33 \| good	3.622 \| good	15.921 \| good	36.466 \| good	0.22 \| good	0.854 \| good	0.124 \| good
2026-04-23T14:00:00.000Z	35 \| good	4.242 \| good	19.092 \| good	38.191 \| good	0.23 \| good	0.78 \| good	0.136 \| good
2026-04-23T15:00:00.000Z	34 \| good	4.322 \| good	19.197 \| good	37.457 \| good	0.224 \| good	0.756 \| good	0.146 \| good
2026-04-23T16:00:00.000Z	31 \| good	3.198 \| good	14.3 \| good	33.309 \| good	0.233 \| good	0.666 \| good	0.147 \| good
2026-04-23T17:00:00.000Z	26 \| good	2.399 \| good	9.798 \| good	28.229 \| good	0.253 \| good	0.597 \| good	0.148 \| good
2026-04-23T18:00:00.000Z	26 \| good	2.034 \| good	7.725 \| good	27.515 \| good	0.273 \| good	0.523 \| good	0.148 \| good
2026-04-23T19:00:00.000Z	26 \| good	1.99 \| good	7.903 \| good	27.595 \| good	0.238 \| good	0.448 \| good	0.15 \| good
2026-04-23T20:00:00.000Z	27 \| good	2.288 \| good	9.666 \| good	28.53 \| good	0.204 \| good	0.403 \| good	0.149 \| good
2026-04-23T21:00:00.000Z	26 \| good	2.467 \| good	9.652 \| good	28.304 \| good	0.169 \| good	0.364 \| good	0.149 \| good
2026-04-23T22:00:00.000Z	28 \| good	2.638 \| good	10.523 \| good	29.909 \| good	0.165 \| good	0.388 \| good	0.149 \| good
2026-04-23T23:00:00.000Z	30 \| good	3.076 \| good	13.313 \| good	32.187 \| good	0.167 \| good	0.416 \| good	0.15 \| good
2026-04-24T00:00:00.000Z	34 \| good	2.628 \| good	10.759 \| good	36.964 \| good	0.172 \| good	0.397 \| good	0.148 \| good
2026-04-24T01:00:00.000Z	31 \| good	2.872 \| good	11.607 \| good	34.086 \| good	0.255 \| good	0.481 \| good	0.147 \| good
2026-04-24T02:00:00.000Z	28 \| good	2.311 \| good	9.83 \| good	30.139 \| good	0.333 \| good	0.604 \| good	0.146 \| good
2026-04-24T03:00:00.000Z	27 \| good	2.466 \| good	10 \| good	28.877 \| good	0.326 \| good	0.602 \| good	0.149 \| good
2026-04-24T04:00:00.000Z	27 \| good	2.228 \| good	9.23 \| good	28.53 \| good	0.436 \| good	0.79 \| good	0.148 \| good
2026-04-24T04:00:00.000Z	27 \| good	2.466 \| good	10 \| good	28.877 \| good	0.326 \| good	0.602 \| good	0.149 \| good
2026-04-24T05:00:00.000Z	25 \| good	2.527 \| good	10 \| good	26.934 \| good	0.353 \| good	0.59 \| good	0.152 \| good
2026-04-24T06:00:00.000Z	23 \| good	2.659 \| good	11 \| good	25.43 \| good	0.376 \| good	0.636 \| good	0.152 \| good
2026-04-24T07:00:00.000Z	24 \| good	2.547 \| good	10 \| good	26.419 \| good	0.32 \| good	0.619 \| good	0.152 \| good
2026-04-24T08:00:00.000Z	24 \| good	2.382 \| good	10 \| good	26.092 \| good	0.265 \| good	0.602 \| good	0.151 \| good
2026-04-24T09:00:00.000Z	25 \| good	1.905 \| good	8 \| good	26.669 \| good	0.21 \| good	0.585 \| good	0.151 \| good
2026-04-24T10:00:00.000Z	26 \| good	1.842 \| good	7.967 \| good	27.571 \| good	0.156 \| good	0.618 \| good	0.151 \| good
2026-04-24T11:00:00.000Z	26 \| good	1.966 \| good	8 \| good	28.461 \| good	0.102 \| good	0.65 \| good	0.151 \| good
2026-04-24T12:00:00.000Z	27 \| good	2.199 \| good	9 \| good	29.174 \| good	0.048 \| good	0.683 \| good	0.151 \| good
2026-04-24T13:00:00.000Z	29 \| good	1.742 \| good	7 \| good	31.31 \| good	0.052 \| good	0.578 \| good	0.149 \| good
2026-04-24T14:00:00.000Z	31 \| good	1.416 \| good	6 \| good	33.58 \| good	0.055 \| good	0.473 \| good	0.147 \| good
2026-04-24T15:00:00.000Z	32 \| good	1.65 \| good	7 \| good	35.083 \| good	0.059 \| good	0.368 \| good	0.145 \| good
2026-04-24T16:00:00.000Z	32 \| good	1.569 \| good	6 \| good	34.889 \| good	0.062 \| good	0.315 \| good	0.142 \| good
2026-04-24T17:00:00.000Z	32 \| good	1.728 \| good	7 \| good	35.424 \| good	0.064 \| good	0.262 \| good	0.139 \| good
2026-04-24T18:00:00.000Z	33 \| good	1.816 \| good	7.928 \| good	36.127 \| good	0.066 \| good	0.208 \| good	0.136 \| good
2026-04-24T19:00:00.000Z	34 \| good	2.01 \| good	8 \| good	37.465 \| good	0.061 \| good	0.2 \| good	0.136 \| good
2026-04-24T20:00:00.000Z	33 \| good	2.015 \| good	8 \| good	36.417 \| good	0.055 \| good	0.192 \| good	0.135 \| good
2026-04-24T21:00:00.000Z	34 \| good	2.087 \| good	8 \| good	36.836 \| good	0.05 \| good	0.183 \| good	0.134 \| good
2026-04-24T22:00:00.000Z	34 \| good	1.847 \| good	7.892 \| good	36.713 \| good	0.049 \| good	0.213 \| good	0.134 \| good
2026-04-24T23:00:00.000Z	35 \| good	2.163 \| good	9 \| good	37.801 \| good	0.048 \| good	0.243 \| good	0.134 \| good
2026-04-25T00:00:00.000Z	32 \| good	2.285 \| good	9.546 \| good	35.168 \| good	0.047 \| good	0.272 \| good	0.134 \| good
2026-04-25T01:00:00.000Z	32 \| good	1.898 \| good	8 \| good	34.931 \| good	0.056 \| good	0.345 \| good	0.135 \| good
2026-04-25T02:00:00.000Z	31 \| good	1.907 \| good	8 \| good	34.39 \| good	0.065 \| good	0.417 \| good	0.135 \| good
2026-04-25T03:00:00.000Z	29 \| good	2.048 \| good	8.039 \| good	31.237 \| good	0.074 \| good	0.49 \| good	0.136 \| good
2026-04-25T04:00:00.000Z	28 \| good	1.932 \| good	8 \| good	29.888 \| good	0.086 \| good	0.51 \| good	0.136 \| good
2026-04-25T05:00:00.000Z	27 \| good	2.158 \| good	9 \| good	29.034 \| good	0.099 \| good	0.53 \| good	0.136 \| good
2026-04-25T06:00:00.000Z	27 \| good	1.977 \| good	8 \| good	28.579 \| good	0.111 \| good	0.55 \| good	0.136 \| good
2026-04-25T07:00:00.000Z	28 \| good	2.156 \| good	9 \| good	29.62 \| good	0.088 \| good	0.555 \| good	0.135 \| good
2026-04-25T08:00:00.000Z	28 \| good	2.233 \| good	9 \| good	29.609 \| good	0.064 \| good	0.56 \| good	0.135 \| good
2026-04-25T09:00:00.000Z	28 \| good	2.1 \| good	8.618 \| good	29.662 \| good	0.04 \| good	0.565 \| good	0.135 \| good
2026-04-25T10:00:00.000Z	28 \| good	2.25 \| good	9.108 \| good	29.703 \| good	0.035 \| good	0.57 \| good	0.135 \| good
2026-04-25T11:00:00.000Z	29 \| good	1.438 \| good	6 \| good	30.64 \| good	0.03 \| good	0.575 \| good	0.135 \| good
2026-04-25T12:00:00.000Z	29 \| good	1.69 \| good	7 \| good	31.344 \| good	0.025 \| good	0.58 \| good	0.135 \| good
2026-04-25T13:00:00.000Z	29 \| good	1.961 \| good	8 \| good	31.415 \| good	0.024 \| good	0.502 \| good	0.136 \| good
2026-04-25T14:00:00.000Z	30 \| good	1.958 \| good	8 \| good	32.23 \| good	0.023 \| good	0.424 \| good	0.137 \| good
2026-04-25T15:00:00.000Z	31 \| good	1.957 \| good	8 \| good	33.069 \| good	0.022 \| good	0.346 \| good	0.138 \| good
2026-04-25T16:00:00.000Z	31 \| good	1.983 \| good	8 \| good	32.591 \| good	0.02 \| good	0.301 \| good	0.138 \| good
2026-04-25T17:00:00.000Z	30 \| good	2.103 \| good	8.427 \| good	31.879 \| good	0.017 \| good	0.257 \| good	0.138 \| good
2026-04-25T18:00:00.000Z	30 \| good	2.245 \| good	9 \| good	32.352 \| good	0.015 \| good	0.212 \| good	0.138 \| good
2026-04-25T19:00:00.000Z	31 \| good	2.495 \| good	10.072 \| good	34.007 \| good	0.012 \| good	0.226 \| good	0.138 \| good
2026-04-25T20:00:00.000Z	30 \| good	2.24 \| good	9.033 \| good	31.907 \| good	0.009 \| good	0.24 \| good	0.138 \| good
2026-04-25T21:00:00.000Z	31 \| good	2.543 \| good	10 \| good	34.447 \| good	0.006 \| good	0.255 \| good	0.137 \| good
2026-04-25T22:00:00.000Z	33 \| good	2.409 \| good	10 \| good	36.008 \| good	0.006 \| good	0.297 \| good	0.136 \| good
2026-04-25T23:00:00.000Z	35 \| good	2.386 \| good	10 \| good	37.755 \| good	0.006 \| good	0.338 \| good	0.135 \| good
2026-04-26T00:00:00.000Z	44 \| good	1.287 \| good	1.501 \| good	46.595 \| good	0.005 \| good	0.38 \| good	0.134 \| good
2026-04-26T01:00:00.000Z	35 \| good	2.26 \| good	9.139 \| good	38.261 \| good	0.012 \| good	0.711 \| good	0.137 \| good
2026-04-26T02:00:00.000Z	31 \| good	2.29 \| good	9.546 \| good	33.623 \| good	0.017 \| good	1.042 \| good	0.14 \| good
2026-04-26T03:00:00.000Z	29 \| good	2.757 \| good	11.108 \| good	30.915 \| good	0.022 \| good	1.373 \| good	0.143 \| good
2026-04-26T04:00:00.000Z	28 \| good	2.517 \| good	10 \| good	29.804 \| good	0.033 \| good	2.03 \| good	0.149 \| good

Williston

Get reliable air quality data to drive your business

Williston, North Dakota air quality map: Track AQI near you

0.14ppm

How accurate is North Dakota, USA air quality data?

Air quality data and pollutant measurements for North Dakota, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.

Source: Ambee Data Sources

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Frequently asked questions

How often is the air quality data for Williston, North Dakota updated?

The air quality for Williston, North Dakota is updated every hour.

When was the worst air quality at Williston, North Dakota in the last 24 hrs?

The worst air quality in Williston, North Dakota in the last 24 hours was observed at 05:00:00 on 2026-04-23.

When was the best air quality at Williston, North Dakota in the last 24 hrs?

In the last 24 hrs, the best air quality in Williston, North Dakota was observed at 09:00:00 on 2026-04-23.

What is the current air quality in Williston, North Dakota?

The current air quality in Williston, North Dakota is 27, categorized as Good based on real-time data.

What pollutant is the most common in Williston, North Dakota?

The most common pollutant in Williston, North Dakota is O3.

What should I do if the air quality in Williston, North Dakota is poor?

If the air quality in Williston, North Dakota is poor, consider staying indoors and wearing a mask to protect yourself.

What is the current concentration of PM_2.5 in Williston, North Dakota?

The current PM_2.5 concentration at Williston, North Dakota is 2.466 μg/m³.

What is the current concentration of PM₁₀ in Williston, North Dakota?

The current PM₁₀ concentration at Williston, North Dakota is 10 μg/m³.

What is the current concentration of carbon monoxide (CO) in Williston, North Dakota?

The current carbon monoxide (CO) concentration at Williston, North Dakota is 0.149 ppm.

What is the current concentration of sulfur dioxide (SO₂) in Williston, North Dakota?

The current sulfur dioxide (SO₂) concentration at Williston, North Dakota is 0.326 ppb.

What is the current concentration of ozone (O₃) in Williston, North Dakota?

The current ozone (O₃) concentration at Williston, North Dakota is 28.877 ppm.

What is the current concentration of nitrogen dioxide (NO₂) in Williston, North Dakota?

The current nitrogen dioxide (NO₂) concentration at Williston, North Dakota is 0.602 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-04-22T05:00:00.000Z	27 \| good	2.692 \| good	11.119 \| good	28.817 \| good	0.444 \| good	4.991 \| good	0.165 \| good
2026-04-22T06:00:00.000Z	24 \| good	2.678 \| good	10.818 \| good	26.03 \| good	0.478 \| good	4.506 \| good	0.16 \| good
2026-04-22T07:00:00.000Z	23 \| good	2.922 \| good	12.018 \| good	24.61 \| good	0.499 \| good	4.241 \| good	0.155 \| good
2026-04-22T08:00:00.000Z	22 \| good	3.568 \| good	15.537 \| good	23.96 \| good	0.527 \| good	3.7 \| good	0.152 \| good
2026-04-22T09:00:00.000Z	22 \| good	3.611 \| good	15.748 \| good	23.591 \| good	0.528 \| good	3.424 \| good	0.15 \| good
2026-04-22T10:00:00.000Z	22 \| good	3.761 \| good	17.279 \| good	22 \| good	0.468 \| good	3.375 \| good	0.15 \| good
2026-04-22T11:00:00.000Z	22 \| good	3.937 \| good	16.881 \| good	20.489 \| good	0.409 \| good	3.231 \| good	0.151 \| good
2026-04-22T12:00:00.000Z	22 \| good	3.683 \| good	16.451 \| good	18.863 \| good	0.36 \| good	3.138 \| good	0.154 \| good
2026-04-22T13:00:00.000Z	20 \| good	3.423 \| good	15.287 \| good	21.548 \| good	0.313 \| good	2.497 \| good	0.143 \| good
2026-04-22T14:00:00.000Z	22 \| good	3.098 \| good	12.575 \| good	23.727 \| good	0.289 \| good	2.434 \| good	0.143 \| good
2026-04-22T15:00:00.000Z	26 \| good	3.324 \| good	14.386 \| good	28.416 \| good	0.255 \| good	2.335 \| good	0.143 \| good
2026-04-22T16:00:00.000Z	31 \| good	3.504 \| good	15.391 \| good	32.688 \| good	0.259 \| good	1.893 \| good	0.142 \| good
2026-04-22T17:00:00.000Z	36 \| good	3.419 \| good	15.357 \| good	38.917 \| good	0.287 \| good	1.418 \| good	0.14 \| good
2026-04-22T18:00:00.000Z	37 \| good	3.78 \| good	16.577 \| good	40.057 \| good	0.247 \| good	1.041 \| good	0.138 \| good
2026-04-22T19:00:00.000Z	41 \| good	3.652 \| good	17.082 \| good	43.8 \| good	0.318 \| good	0.924 \| good	0.138 \| good
2026-04-22T20:00:00.000Z	45 \| good	3.767 \| good	17.62 \| good	48.968 \| good	0.415 \| good	0.765 \| good	0.141 \| good
2026-04-22T21:00:00.000Z	49 \| good	3.904 \| good	19.141 \| good	53.328 \| good	0.481 \| good	0.646 \| good	0.142 \| good
2026-04-22T22:00:00.000Z	54 \| moderate	4.021 \| good	19.64 \| good	56.414 \| fine	0.464 \| good	0.727 \| good	0.144 \| good
2026-04-22T23:00:00.000Z	51 \| moderate	4.044 \| good	18.7 \| good	55.439 \| fine	0.449 \| good	0.826 \| good	0.148 \| good
2026-04-23T00:00:00.000Z	45 \| good	4.139 \| good	18.448 \| good	49.114 \| good	0.436 \| good	0.951 \| good	0.151 \| good
2026-04-23T01:00:00.000Z	46 \| good	7.565 \| good	32.826 \| good	49.649 \| good	0.379 \| good	1.091 \| good	0.14 \| good
2026-04-23T02:00:00.000Z	44 \| good	4.787 \| good	20.833 \| good	47.664 \| good	0.337 \| good	1.259 \| good	0.137 \| good
2026-04-23T03:00:00.000Z	39 \| good	5.072 \| good	21.626 \| good	41.627 \| good	0.299 \| good	1.595 \| good	0.136 \| good
2026-04-23T04:00:00.000Z	34 \| good	6.24 \| good	27.629 \| good	36.893 \| good	0.269 \| good	1.433 \| good	0.134 \| good
2026-04-23T05:00:00.000Z	38 \| good	6.889 \| good	26.868 \| good	34.953 \| good	0.246 \| good	1.36 \| good	0.129 \| good
2026-04-23T06:00:00.000Z	33 \| good	4.668 \| good	20.758 \| good	35.599 \| good	0.221 \| good	1.334 \| good	0.125 \| good
2026-04-23T07:00:00.000Z	33 \| good	4.03 \| good	20.56 \| good	36.399 \| good	0.234 \| good	1.127 \| good	0.121 \| good
2026-04-23T08:00:00.000Z	31 \| good	4.026 \| good	17.487 \| good	34.026 \| good	0.225 \| good	0.87 \| good	0.117 \| good
2026-04-23T09:00:00.000Z	29 \| good	3.253 \| good	14.285 \| good	30.926 \| good	0.228 \| good	0.696 \| good	0.113 \| good
2026-04-23T10:00:00.000Z	31 \| good	2.752 \| good	11.442 \| good	32.56 \| good	0.214 \| good	0.742 \| good	0.115 \| good
2026-04-23T11:00:00.000Z	32 \| good	2.689 \| good	11.461 \| good	34.797 \| good	0.201 \| good	1.091 \| good	0.117 \| good
2026-04-23T12:00:00.000Z	33 \| good	2.888 \| good	12.265 \| good	36.181 \| good	0.213 \| good	1.023 \| good	0.113 \| good
2026-04-23T13:00:00.000Z	33 \| good	3.622 \| good	15.921 \| good	36.466 \| good	0.22 \| good	0.854 \| good	0.124 \| good
2026-04-23T14:00:00.000Z	35 \| good	4.242 \| good	19.092 \| good	38.191 \| good	0.23 \| good	0.78 \| good	0.136 \| good
2026-04-23T15:00:00.000Z	34 \| good	4.322 \| good	19.197 \| good	37.457 \| good	0.224 \| good	0.756 \| good	0.146 \| good
2026-04-23T16:00:00.000Z	31 \| good	3.198 \| good	14.3 \| good	33.309 \| good	0.233 \| good	0.666 \| good	0.147 \| good
2026-04-23T17:00:00.000Z	26 \| good	2.399 \| good	9.798 \| good	28.229 \| good	0.253 \| good	0.597 \| good	0.148 \| good
2026-04-23T18:00:00.000Z	26 \| good	2.034 \| good	7.725 \| good	27.515 \| good	0.273 \| good	0.523 \| good	0.148 \| good
2026-04-23T19:00:00.000Z	26 \| good	1.99 \| good	7.903 \| good	27.595 \| good	0.238 \| good	0.448 \| good	0.15 \| good
2026-04-23T20:00:00.000Z	27 \| good	2.288 \| good	9.666 \| good	28.53 \| good	0.204 \| good	0.403 \| good	0.149 \| good
2026-04-23T21:00:00.000Z	26 \| good	2.467 \| good	9.652 \| good	28.304 \| good	0.169 \| good	0.364 \| good	0.149 \| good
2026-04-23T22:00:00.000Z	28 \| good	2.638 \| good	10.523 \| good	29.909 \| good	0.165 \| good	0.388 \| good	0.149 \| good
2026-04-23T23:00:00.000Z	30 \| good	3.076 \| good	13.313 \| good	32.187 \| good	0.167 \| good	0.416 \| good	0.15 \| good
2026-04-24T00:00:00.000Z	34 \| good	2.628 \| good	10.759 \| good	36.964 \| good	0.172 \| good	0.397 \| good	0.148 \| good
2026-04-24T01:00:00.000Z	31 \| good	2.872 \| good	11.607 \| good	34.086 \| good	0.255 \| good	0.481 \| good	0.147 \| good
2026-04-24T02:00:00.000Z	28 \| good	2.311 \| good	9.83 \| good	30.139 \| good	0.333 \| good	0.604 \| good	0.146 \| good
2026-04-24T03:00:00.000Z	27 \| good	2.466 \| good	10 \| good	28.877 \| good	0.326 \| good	0.602 \| good	0.149 \| good
2026-04-24T04:00:00.000Z	27 \| good	2.228 \| good	9.23 \| good	28.53 \| good	0.436 \| good	0.79 \| good	0.148 \| good
2026-04-24T04:00:00.000Z	27 \| good	2.466 \| good	10 \| good	28.877 \| good	0.326 \| good	0.602 \| good	0.149 \| good
2026-04-24T05:00:00.000Z	25 \| good	2.527 \| good	10 \| good	26.934 \| good	0.353 \| good	0.59 \| good	0.152 \| good
2026-04-24T06:00:00.000Z	23 \| good	2.659 \| good	11 \| good	25.43 \| good	0.376 \| good	0.636 \| good	0.152 \| good
2026-04-24T07:00:00.000Z	24 \| good	2.547 \| good	10 \| good	26.419 \| good	0.32 \| good	0.619 \| good	0.152 \| good
2026-04-24T08:00:00.000Z	24 \| good	2.382 \| good	10 \| good	26.092 \| good	0.265 \| good	0.602 \| good	0.151 \| good
2026-04-24T09:00:00.000Z	25 \| good	1.905 \| good	8 \| good	26.669 \| good	0.21 \| good	0.585 \| good	0.151 \| good
2026-04-24T10:00:00.000Z	26 \| good	1.842 \| good	7.967 \| good	27.571 \| good	0.156 \| good	0.618 \| good	0.151 \| good
2026-04-24T11:00:00.000Z	26 \| good	1.966 \| good	8 \| good	28.461 \| good	0.102 \| good	0.65 \| good	0.151 \| good
2026-04-24T12:00:00.000Z	27 \| good	2.199 \| good	9 \| good	29.174 \| good	0.048 \| good	0.683 \| good	0.151 \| good
2026-04-24T13:00:00.000Z	29 \| good	1.742 \| good	7 \| good	31.31 \| good	0.052 \| good	0.578 \| good	0.149 \| good
2026-04-24T14:00:00.000Z	31 \| good	1.416 \| good	6 \| good	33.58 \| good	0.055 \| good	0.473 \| good	0.147 \| good
2026-04-24T15:00:00.000Z	32 \| good	1.65 \| good	7 \| good	35.083 \| good	0.059 \| good	0.368 \| good	0.145 \| good
2026-04-24T16:00:00.000Z	32 \| good	1.569 \| good	6 \| good	34.889 \| good	0.062 \| good	0.315 \| good	0.142 \| good
2026-04-24T17:00:00.000Z	32 \| good	1.728 \| good	7 \| good	35.424 \| good	0.064 \| good	0.262 \| good	0.139 \| good
2026-04-24T18:00:00.000Z	33 \| good	1.816 \| good	7.928 \| good	36.127 \| good	0.066 \| good	0.208 \| good	0.136 \| good
2026-04-24T19:00:00.000Z	34 \| good	2.01 \| good	8 \| good	37.465 \| good	0.061 \| good	0.2 \| good	0.136 \| good
2026-04-24T20:00:00.000Z	33 \| good	2.015 \| good	8 \| good	36.417 \| good	0.055 \| good	0.192 \| good	0.135 \| good
2026-04-24T21:00:00.000Z	34 \| good	2.087 \| good	8 \| good	36.836 \| good	0.05 \| good	0.183 \| good	0.134 \| good
2026-04-24T22:00:00.000Z	34 \| good	1.847 \| good	7.892 \| good	36.713 \| good	0.049 \| good	0.213 \| good	0.134 \| good
2026-04-24T23:00:00.000Z	35 \| good	2.163 \| good	9 \| good	37.801 \| good	0.048 \| good	0.243 \| good	0.134 \| good
2026-04-25T00:00:00.000Z	32 \| good	2.285 \| good	9.546 \| good	35.168 \| good	0.047 \| good	0.272 \| good	0.134 \| good
2026-04-25T01:00:00.000Z	32 \| good	1.898 \| good	8 \| good	34.931 \| good	0.056 \| good	0.345 \| good	0.135 \| good
2026-04-25T02:00:00.000Z	31 \| good	1.907 \| good	8 \| good	34.39 \| good	0.065 \| good	0.417 \| good	0.135 \| good
2026-04-25T03:00:00.000Z	29 \| good	2.048 \| good	8.039 \| good	31.237 \| good	0.074 \| good	0.49 \| good	0.136 \| good
2026-04-25T04:00:00.000Z	28 \| good	1.932 \| good	8 \| good	29.888 \| good	0.086 \| good	0.51 \| good	0.136 \| good
2026-04-25T05:00:00.000Z	27 \| good	2.158 \| good	9 \| good	29.034 \| good	0.099 \| good	0.53 \| good	0.136 \| good
2026-04-25T06:00:00.000Z	27 \| good	1.977 \| good	8 \| good	28.579 \| good	0.111 \| good	0.55 \| good	0.136 \| good
2026-04-25T07:00:00.000Z	28 \| good	2.156 \| good	9 \| good	29.62 \| good	0.088 \| good	0.555 \| good	0.135 \| good
2026-04-25T08:00:00.000Z	28 \| good	2.233 \| good	9 \| good	29.609 \| good	0.064 \| good	0.56 \| good	0.135 \| good
2026-04-25T09:00:00.000Z	28 \| good	2.1 \| good	8.618 \| good	29.662 \| good	0.04 \| good	0.565 \| good	0.135 \| good
2026-04-25T10:00:00.000Z	28 \| good	2.25 \| good	9.108 \| good	29.703 \| good	0.035 \| good	0.57 \| good	0.135 \| good
2026-04-25T11:00:00.000Z	29 \| good	1.438 \| good	6 \| good	30.64 \| good	0.03 \| good	0.575 \| good	0.135 \| good
2026-04-25T12:00:00.000Z	29 \| good	1.69 \| good	7 \| good	31.344 \| good	0.025 \| good	0.58 \| good	0.135 \| good
2026-04-25T13:00:00.000Z	29 \| good	1.961 \| good	8 \| good	31.415 \| good	0.024 \| good	0.502 \| good	0.136 \| good
2026-04-25T14:00:00.000Z	30 \| good	1.958 \| good	8 \| good	32.23 \| good	0.023 \| good	0.424 \| good	0.137 \| good
2026-04-25T15:00:00.000Z	31 \| good	1.957 \| good	8 \| good	33.069 \| good	0.022 \| good	0.346 \| good	0.138 \| good
2026-04-25T16:00:00.000Z	31 \| good	1.983 \| good	8 \| good	32.591 \| good	0.02 \| good	0.301 \| good	0.138 \| good
2026-04-25T17:00:00.000Z	30 \| good	2.103 \| good	8.427 \| good	31.879 \| good	0.017 \| good	0.257 \| good	0.138 \| good
2026-04-25T18:00:00.000Z	30 \| good	2.245 \| good	9 \| good	32.352 \| good	0.015 \| good	0.212 \| good	0.138 \| good
2026-04-25T19:00:00.000Z	31 \| good	2.495 \| good	10.072 \| good	34.007 \| good	0.012 \| good	0.226 \| good	0.138 \| good
2026-04-25T20:00:00.000Z	30 \| good	2.24 \| good	9.033 \| good	31.907 \| good	0.009 \| good	0.24 \| good	0.138 \| good
2026-04-25T21:00:00.000Z	31 \| good	2.543 \| good	10 \| good	34.447 \| good	0.006 \| good	0.255 \| good	0.137 \| good
2026-04-25T22:00:00.000Z	33 \| good	2.409 \| good	10 \| good	36.008 \| good	0.006 \| good	0.297 \| good	0.136 \| good
2026-04-25T23:00:00.000Z	35 \| good	2.386 \| good	10 \| good	37.755 \| good	0.006 \| good	0.338 \| good	0.135 \| good
2026-04-26T00:00:00.000Z	44 \| good	1.287 \| good	1.501 \| good	46.595 \| good	0.005 \| good	0.38 \| good	0.134 \| good
2026-04-26T01:00:00.000Z	35 \| good	2.26 \| good	9.139 \| good	38.261 \| good	0.012 \| good	0.711 \| good	0.137 \| good
2026-04-26T02:00:00.000Z	31 \| good	2.29 \| good	9.546 \| good	33.623 \| good	0.017 \| good	1.042 \| good	0.14 \| good
2026-04-26T03:00:00.000Z	29 \| good	2.757 \| good	11.108 \| good	30.915 \| good	0.022 \| good	1.373 \| good	0.143 \| good
2026-04-26T04:00:00.000Z	28 \| good	2.517 \| good	10 \| good	29.804 \| good	0.033 \| good	2.03 \| good	0.149 \| good

Williston, North Dakota live air quality index now

Major air pollutants in Williston, North Dakota

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live Williston, North Dakota air quality forecast and history

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Williston, North Dakota air quality map: Track AQI near you

Air quality in nearby cities

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Frequently asked questions

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What is the current concentration of PM2.5 in Williston, North Dakota?

What is the current concentration of PM10 in Williston, North Dakota?

What is the current concentration of carbon monoxide (CO) in Williston, North Dakota?

What is the current concentration of sulfur dioxide (SO2) in Williston, North Dakota?

What is the current concentration of ozone (O3) in Williston, North Dakota?

What is the current concentration of nitrogen dioxide (NO2) in Williston, North Dakota?

Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

What is the current concentration of PM_2.5 in Williston, North Dakota?

What is the current concentration of PM₁₀ in Williston, North Dakota?

What is the current concentration of sulfur dioxide (SO₂) in Williston, North Dakota?

What is the current concentration of ozone (O₃) in Williston, North Dakota?

What is the current concentration of nitrogen dioxide (NO₂) in Williston, North Dakota?