What is the current concentration of PM10 in Montana, USA?

The current PM10 concentration at Montana, USA is 80.417 μg/m3.

What is the current concentration of sulfur dioxide (SO2) in Montana, USA?

The current sulfur dioxide (SO2) concentration at Montana, USA is 1.118 ppb.

What is the current concentration of ozone (O3) in Montana, USA?

The current ozone (O3) concentration at Montana, USA is 22.355 ppm.

What is the current concentration of nitrogen dioxide (NO2) in Montana, USA?

The current nitrogen dioxide (NO2) concentration at Montana, USA is 3.321 ppb.

Montana, USA live air quality index now

Name: Live air pollution levels in Montana, USA today
Creator: Ambee

Stay updated with real-time air quality in Montana, USA 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

Montana, USA

Last updated: ... (Local time)

Major air pollutants in Montana, USA

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

21.02 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

76.90 μg/m³

155

255

425

605+

Ozone (O₃)

34.61 ppb

201

201+

Sulfur Dioxide (SO₂)

2.69 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

1.81 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.21 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Moderate

Montana, USA

Get Live Pollen Counts

Montana, USA

Scroll To Air Quality Map

Track live Montana, USA air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-09-03T22:00:00.000Z	54 \| moderate	11.127 \| good	49.473 \| good	53.362 \| good	0.208 \| good	0.251 \| good	0.154 \| good
2025-09-03T23:00:00.000Z	56 \| moderate	11.706 \| good	51.661 \| good	52.599 \| good	0.209 \| good	0.297 \| good	0.157 \| good
2025-09-04T00:00:00.000Z	56 \| moderate	12.096 \| good	53.914 \| good	48.285 \| good	0.219 \| good	0.34 \| good	0.161 \| good
2025-09-04T01:00:00.000Z	58 \| moderate	13.106 \| fine	59.091 \| fine	41.561 \| good	0.205 \| good	1.063 \| good	0.167 \| good
2025-09-04T02:00:00.000Z	58 \| moderate	13.404 \| fine	60.739 \| fine	36.725 \| good	0.192 \| good	1.785 \| good	0.173 \| good
2025-09-04T03:00:00.000Z	62 \| moderate	14.715 \| fine	65.355 \| fine	33.375 \| good	0.179 \| good	2.508 \| good	0.179 \| good
2025-09-04T04:00:00.000Z	62 \| moderate	15.162 \| fine	68.666 \| fine	31.674 \| good	0.168 \| good	2.78 \| good	0.18 \| good
2025-09-04T05:00:00.000Z	60 \| moderate	14.424 \| fine	64.833 \| fine	29.532 \| good	0.157 \| good	3.052 \| good	0.181 \| good
2025-09-04T06:00:00.000Z	58 \| moderate	12.786 \| fine	57 \| fine	30.233 \| good	0.146 \| good	3.324 \| good	0.183 \| good
2025-09-04T07:00:00.000Z	58 \| moderate	13.08 \| fine	58.736 \| fine	31.772 \| good	0.141 \| good	3.16 \| good	0.178 \| good
2025-09-04T08:00:00.000Z	56 \| moderate	12.385 \| fine	56.402 \| fine	30.235 \| good	0.137 \| good	2.995 \| good	0.173 \| good
2025-09-04T09:00:00.000Z	62 \| moderate	14.858 \| fine	66.442 \| fine	31.61 \| good	0.133 \| good	2.83 \| good	0.168 \| good
2025-09-04T10:00:00.000Z	79 \| moderate	23.841 \| fine	103.79 \| fine	36.131 \| good	0.137 \| good	2.458 \| good	0.162 \| good
2025-09-04T11:00:00.000Z	110 \| sensitive	39.477 \| moderate	174.127 \| moderate	41.528 \| good	0.147 \| good	1.915 \| good	0.177 \| good
2025-09-04T12:00:00.000Z	54 \| moderate	11.483 \| good	50.833 \| good	31.594 \| good	0.155 \| good	1.764 \| good	0.175 \| good
2025-09-04T13:00:00.000Z	60 \| moderate	14.114 \| fine	62.724 \| fine	31.652 \| good	0.322 \| good	1.478 \| good	0.187 \| good
2025-09-04T14:00:00.000Z	77 \| moderate	22.973 \| fine	100.739 \| fine	31.321 \| good	0.487 \| good	1.185 \| good	0.198 \| good
2025-09-04T15:00:00.000Z	79 \| moderate	24.05 \| fine	105.091 \| fine	27.183 \| good	0.653 \| good	0.896 \| good	0.209 \| good
2025-09-04T16:00:00.000Z	75 \| moderate	22.269 \| fine	97.448 \| fine	28.019 \| good	0.517 \| good	0.685 \| good	0.215 \| good
2025-09-04T17:00:00.000Z	67 \| moderate	17.792 \| fine	79.258 \| fine	36.788 \| good	0.381 \| good	0.475 \| good	0.221 \| good
2025-09-04T18:00:00.000Z	62 \| moderate	15.371 \| fine	69.258 \| fine	35.184 \| good	0.244 \| good	0.264 \| good	0.226 \| good
2025-09-04T19:00:00.000Z	66 \| moderate	16.713 \| fine	73.522 \| fine	39.191 \| good	0.214 \| good	0.226 \| good	0.214 \| good
2025-09-04T20:00:00.000Z	64 \| moderate	15.719 \| fine	69.448 \| fine	41.395 \| good	0.183 \| good	0.188 \| good	0.201 \| good
2025-09-04T21:00:00.000Z	66 \| moderate	16.707 \| fine	73.522 \| fine	41.676 \| good	0.153 \| good	0.149 \| good	0.188 \| good
2025-09-04T22:00:00.000Z	64 \| moderate	16.277 \| fine	72.81 \| fine	40.745 \| good	0.162 \| good	0.176 \| good	0.182 \| good
2025-09-04T23:00:00.000Z	66 \| moderate	16.724 \| fine	74.736 \| fine	40.988 \| good	0.099 \| good	0.195 \| good	0.157 \| good
2025-09-05T00:00:00.000Z	62 \| moderate	15.377 \| fine	68.907 \| fine	43.224 \| good	0.091 \| good	0.22 \| good	0.151 \| good
2025-09-05T01:00:00.000Z	66 \| moderate	17.378 \| fine	76.833 \| fine	42.724 \| good	0.101 \| good	0.527 \| good	0.151 \| good
2025-09-05T02:00:00.000Z	64 \| moderate	16.327 \| fine	72.81 \| fine	37.372 \| good	0.111 \| good	0.835 \| good	0.152 \| good
2025-09-05T03:00:00.000Z	67 \| moderate	18.062 \| fine	79.355 \| fine	35.741 \| good	0.122 \| good	1.143 \| good	0.152 \| good
2025-09-05T04:00:00.000Z	67 \| moderate	17.561 \| fine	78.739 \| fine	32.287 \| good	0.146 \| good	1.495 \| good	0.154 \| good
2025-09-05T05:00:00.000Z	67 \| moderate	17.548 \| fine	78.666 \| fine	30.581 \| good	0.171 \| good	1.846 \| good	0.157 \| good
2025-09-05T06:00:00.000Z	67 \| moderate	17.92 \| fine	79 \| fine	30.633 \| good	0.195 \| good	2.198 \| good	0.159 \| good
2025-09-05T07:00:00.000Z	67 \| moderate	17.601 \| fine	79 \| fine	27.542 \| good	0.223 \| good	2.412 \| good	0.159 \| good
2025-09-05T08:00:00.000Z	66 \| moderate	16.64 \| fine	73 \| fine	26.912 \| good	0.25 \| good	2.625 \| good	0.16 \| good
2025-09-05T09:00:00.000Z	64 \| moderate	15.772 \| fine	70.288 \| fine	26.246 \| good	0.277 \| good	2.838 \| good	0.161 \| good
2025-09-05T10:00:00.000Z	64 \| moderate	16.218 \| fine	72.311 \| fine	26.969 \| good	0.295 \| good	2.957 \| good	0.16 \| good
2025-09-05T11:00:00.000Z	62 \| moderate	15.288 \| fine	68.759 \| fine	29.204 \| good	0.219 \| good	2.987 \| good	0.192 \| good
2025-09-05T12:00:00.000Z	60 \| moderate	14.288 \| fine	64.144 \| fine	27.473 \| good	0.245 \| good	3.052 \| good	0.192 \| good
2025-09-05T13:00:00.000Z	60 \| moderate	14.119 \| fine	62.856 \| fine	26.673 \| good	0.33 \| good	2.27 \| good	0.189 \| good
2025-09-05T14:00:00.000Z	60 \| moderate	13.71 \| fine	61.096 \| fine	29.274 \| good	0.414 \| good	1.488 \| good	0.187 \| good
2025-09-05T15:00:00.000Z	62 \| moderate	14.643 \| fine	64.929 \| fine	30.901 \| good	0.499 \| good	0.705 \| good	0.184 \| good
2025-09-05T16:00:00.000Z	64 \| moderate	15.711 \| fine	70.666 \| fine	35.877 \| good	0.477 \| good	0.542 \| good	0.18 \| good
2025-09-05T17:00:00.000Z	60 \| moderate	13.589 \| fine	60.833 \| fine	40.857 \| good	0.456 \| good	0.379 \| good	0.175 \| good
2025-09-05T18:00:00.000Z	58 \| moderate	12.706 \| fine	56.833 \| fine	42.582 \| good	0.434 \| good	0.216 \| good	0.171 \| good
2025-09-05T19:00:00.000Z	54 \| moderate	10.909 \| good	48.224 \| good	45.458 \| good	0.403 \| good	0.206 \| good	0.166 \| good
2025-09-05T20:00:00.000Z	54 \| moderate	10.836 \| good	47.953 \| good	47.524 \| good	0.372 \| good	0.197 \| good	0.162 \| good
2025-09-05T21:00:00.000Z	54 \| moderate	11.077 \| good	48.916 \| good	46.778 \| good	0.341 \| good	0.187 \| good	0.157 \| good
2025-09-05T21:00:00.000Z	73 \| moderate	21.018 \| fine	76.9 \| fine	34.614 \| good	2.695 \| good	1.808 \| good	0.212 \| good
2025-09-05T18:00:00.000Z	60 \| moderate	13.73 \| fine	61.21 \| fine	41.894 \| good	0.436 \| good	0.217 \| good	0.171 \| good
2025-09-05T19:00:00.000Z	56 \| moderate	11.596 \| good	51.13 \| good	45.951 \| good	0.405 \| good	0.207 \| good	0.166 \| good
2025-09-05T20:00:00.000Z	54 \| moderate	11.402 \| good	50.285 \| good	49.321 \| good	0.373 \| good	0.197 \| good	0.162 \| good
2025-09-05T21:00:00.000Z	54 \| moderate	11.163 \| good	49.223 \| good	48.357 \| good	0.342 \| good	0.187 \| good	0.157 \| good
2025-09-05T22:00:00.000Z	54 \| moderate	10.676 \| good	47.617 \| good	47.344 \| good	0.332 \| good	0.218 \| good	0.156 \| good
2025-09-05T23:00:00.000Z	54 \| moderate	11.28 \| good	50.059 \| good	47.639 \| good	0.322 \| good	0.248 \| good	0.155 \| good
2025-09-06T00:00:00.000Z	52 \| moderate	9.725 \| good	43.105 \| good	45.847 \| good	0.312 \| good	0.279 \| good	0.154 \| good
2025-09-06T01:00:00.000Z	49 \| good	9.01 \| good	40.785 \| good	42.235 \| good	0.294 \| good	0.919 \| good	0.158 \| good
2025-09-06T02:00:00.000Z	49 \| good	9.5 \| good	42.089 \| good	40.331 \| good	0.276 \| good	1.56 \| good	0.163 \| good
2025-09-06T03:00:00.000Z	54 \| moderate	10.79 \| good	47.956 \| good	39.121 \| good	0.258 \| good	2.2 \| good	0.167 \| good
2025-09-06T04:00:00.000Z	54 \| moderate	10.621 \| good	47.348 \| good	35.257 \| good	0.248 \| good	2.568 \| good	0.17 \| good
2025-09-06T05:00:00.000Z	54 \| moderate	11.324 \| good	50.018 \| good	31.864 \| good	0.238 \| good	2.936 \| good	0.174 \| good
2025-09-06T06:00:00.000Z	54 \| moderate	11.494 \| good	50.886 \| good	31.446 \| good	0.228 \| good	3.305 \| good	0.177 \| good
2025-09-06T07:00:00.000Z	56 \| moderate	12.183 \| fine	54.784 \| good	31.547 \| good	0.225 \| good	3.378 \| good	0.178 \| good
2025-09-06T08:00:00.000Z	58 \| moderate	12.588 \| fine	57.246 \| fine	32.76 \| good	0.223 \| good	3.451 \| good	0.179 \| good
2025-09-06T09:00:00.000Z	60 \| moderate	13.673 \| fine	61.336 \| fine	32.242 \| good	0.22 \| good	3.524 \| good	0.18 \| good
2025-09-06T10:00:00.000Z	64 \| moderate	16.282 \| fine	72.04 \| fine	33.688 \| good	0.218 \| good	3.52 \| good	0.179 \| good
2025-09-06T11:00:00.000Z	71 \| moderate	19.769 \| fine	87.19 \| fine	35.801 \| good	0.216 \| good	3.515 \| good	0.178 \| good
2025-09-06T12:00:00.000Z	73 \| moderate	21.334 \| fine	93.636 \| fine	33.931 \| good	0.213 \| good	3.511 \| good	0.177 \| good
2025-09-06T13:00:00.000Z	75 \| moderate	22.03 \| fine	97.036 \| fine	32.903 \| good	0.22 \| good	2.965 \| good	0.179 \| good
2025-09-06T14:00:00.000Z	77 \| moderate	23.164 \| fine	101.761 \| fine	30.807 \| good	0.226 \| good	2.419 \| good	0.181 \| good
2025-09-06T15:00:00.000Z	77 \| moderate	22.858 \| fine	100.499 \| fine	34.84 \| good	0.233 \| good	1.874 \| good	0.183 \| good
2025-09-06T16:00:00.000Z	84 \| moderate	27.096 \| fine	118.1 \| fine	37.441 \| good	0.222 \| good	1.346 \| good	0.17 \| good
2025-09-06T17:00:00.000Z	84 \| moderate	27.373 \| fine	118.616 \| fine	45.668 \| good	0.211 \| good	0.819 \| good	0.157 \| good
2025-09-06T18:00:00.000Z	84 \| moderate	27.248 \| fine	118.476 \| fine	48.466 \| good	0.2 \| good	0.291 \| good	0.144 \| good
2025-09-06T19:00:00.000Z	81 \| moderate	24.946 \| fine	108.792 \| fine	49.914 \| good	0.191 \| good	0.272 \| good	0.142 \| good
2025-09-06T20:00:00.000Z	82 \| moderate	26.044 \| fine	112.821 \| fine	50.285 \| good	0.182 \| good	0.252 \| good	0.14 \| good
2025-09-06T21:00:00.000Z	81 \| moderate	25.39 \| fine	110.641 \| fine	48.853 \| good	0.173 \| good	0.233 \| good	0.137 \| good
2025-09-06T22:00:00.000Z	77 \| moderate	23.405 \| fine	102.67 \| fine	47.819 \| good	0.176 \| good	0.269 \| good	0.136 \| good
2025-09-06T23:00:00.000Z	75 \| moderate	21.716 \| fine	95.169 \| fine	47.684 \| good	0.178 \| good	0.305 \| good	0.135 \| good
2025-09-07T00:00:00.000Z	71 \| moderate	20.288 \| fine	88.974 \| fine	47.505 \| good	0.18 \| good	0.34 \| good	0.134 \| good
2025-09-07T01:00:00.000Z	67 \| moderate	18.183 \| fine	80.31 \| fine	43.024 \| good	0.189 \| good	0.915 \| good	0.139 \| good
2025-09-07T02:00:00.000Z	67 \| moderate	17.838 \| fine	78.93 \| fine	42.07 \| good	0.197 \| good	1.489 \| good	0.143 \| good
2025-09-07T03:00:00.000Z	67 \| moderate	18.017 \| fine	79.579 \| fine	39.535 \| good	0.206 \| good	2.064 \| good	0.148 \| good
2025-09-07T04:00:00.000Z	64 \| moderate	15.772 \| fine	70.031 \| fine	41.416 \| good	0.221 \| good	2.205 \| good	0.148 \| good
2025-09-07T05:00:00.000Z	60 \| moderate	14.061 \| fine	62.769 \| fine	39.324 \| good	0.236 \| good	2.346 \| good	0.147 \| good
2025-09-07T06:00:00.000Z	58 \| moderate	12.573 \| fine	56.081 \| fine	39.257 \| good	0.25 \| good	2.487 \| good	0.147 \| good
2025-09-07T07:00:00.000Z	58 \| moderate	13.038 \| fine	58.545 \| fine	39.224 \| good	0.27 \| good	2.481 \| good	0.146 \| good
2025-09-07T08:00:00.000Z	64 \| moderate	15.615 \| fine	69.449 \| fine	41.721 \| good	0.289 \| good	2.476 \| good	0.144 \| good
2025-09-07T09:00:00.000Z	71 \| moderate	20.109 \| fine	88.453 \| fine	41.047 \| good	0.308 \| good	2.47 \| good	0.143 \| good
2025-09-07T10:00:00.000Z	84 \| moderate	26.611 \| fine	115.955 \| fine	42.058 \| good	0.302 \| good	2.435 \| good	0.141 \| good
2025-09-07T11:00:00.000Z	97 \| moderate	33.633 \| fine	145.705 \| fine	44.978 \| good	0.297 \| good	2.4 \| good	0.14 \| good
2025-09-07T12:00:00.000Z	94 \| moderate	32.186 \| fine	139.023 \| fine	43.201 \| good	0.292 \| good	2.365 \| good	0.138 \| good
2025-09-07T13:00:00.000Z	90 \| moderate	29.717 \| fine	129.038 \| fine	40.132 \| good	0.278 \| good	2.132 \| good	0.143 \| good
2025-09-07T14:00:00.000Z	86 \| moderate	27.579 \| fine	119.879 \| fine	34.521 \| good	0.263 \| good	1.899 \| good	0.148 \| good
2025-09-07T15:00:00.000Z	90 \| moderate	30.049 \| fine	129.985 \| fine	36.737 \| good	0.249 \| good	1.667 \| good	0.152 \| good
2025-09-07T16:00:00.000Z	102 \| sensitive	36.364 \| moderate	158.409 \| moderate	44.635 \| good	0.232 \| good	1.226 \| good	0.16 \| good
2025-09-07T17:00:00.000Z	112 \| sensitive	39.636 \| moderate	174.938 \| moderate	52.117 \| good	0.215 \| good	0.786 \| good	0.168 \| good

Montana

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Montana, USA air quality map: Track AQI near you

Air quality in cities of Montana, USA

City	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
Great Falls, Montana	90 Moderate	30.30μg/m³ Fine	131.00μg/m³ Fine	33.74ppb Good	3.21ppb Good	1.73ppb Good	0.25ppm Good
Helena, Montana	82 Moderate	25.64μg/m³ Fine	110.67μg/m³ Fine	30.87ppb Good	2.36ppb Good	1.39ppb Good	0.24ppm Good
ButteSilver Bow, Montana	79 Moderate	24.33μg/m³ Fine	40.72μg/m³ Good	33.77ppb Good	2.28ppb Good	1.31ppb Good	0.16ppm Good
Missoula, Montana	77 Moderate	23.26μg/m³ Fine	43.06μg/m³ Good	29.05ppb Good	2.46ppb Good	1.94ppb Good	0.27ppm Good
Belgrade, Montana	71 Moderate	19.70μg/m³ Fine	87.81μg/m³ Fine	39.57ppb Good	2.41ppb Good	1.27ppb Good	0.16ppm Good
Bozeman, Montana	71 Moderate	19.50μg/m³ Fine	87.00μg/m³ Fine	39.87ppb Good	2.41ppb Good	1.27ppb Good	0.16ppm Good
Billings, Montana	60 Moderate	14.39μg/m³ Fine	64.95μg/m³ Fine	38.44ppb Good	4.00ppb Good	1.31ppb Good	0.18ppm Good
Kalispell, Montana	54 Moderate	11.02μg/m³ Good	49.99μg/m³ Good	31.59ppb Good	2.43ppb Good	4.24ppb Good	0.27ppm Good

City	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
No results found

0.21ppm

How accurate is Montana, USA air quality data?

Air quality data and pollutant measurements for Montana, 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

Air quality levels in US

Check live rankings of places in the USA affected by air pollution.

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Frequently asked questions

How often is the air quality data for Montana, USA updated?

The air quality for Montana, USA is updated every hour.

When was the worst air quality at Montana, USA in the last 24 hrs?

The worst air quality in Montana, USA in the last 24 hours was observed at 07:00:00 on 2025-09-05.

When was the best air quality at Montana, USA in the last 24 hrs?

In the last 24 hrs, the best air quality in Montana, USA was observed at 02:00:00 on 2025-09-05.

What is the current air quality in Montana, USA?

The current air quality in Montana, USA is 75, categorized as Moderate based on real-time data.

What pollutant is the most common in Montana, USA?

The most common pollutant in Montana, USA is PM2.5.

What should I do if the air quality in Montana, USA is poor?

If the air quality in Montana, USA is poor, consider staying indoors and wearing a mask to protect yourself.

What is the current concentration of PM_2.5 in Montana, USA?

The current PM_2.5 concentration at Montana, USA is 21.671 μg/m³.

What is the current concentration of PM₁₀ in Montana, USA?

The current PM₁₀ concentration at Montana, USA is 80.417 μg/m³.

What is the current concentration of carbon monoxide (CO) in Montana, USA?

The current carbon monoxide (CO) concentration at Montana, USA is 0.28 ppm.

What is the current concentration of sulfur dioxide (SO₂) in Montana, USA?

The current sulfur dioxide (SO₂) concentration at Montana, USA is 1.118 ppb.

What is the current concentration of ozone (O₃) in Montana, USA?

The current ozone (O₃) concentration at Montana, USA is 22.355 ppm.

What is the current concentration of nitrogen dioxide (NO₂) in Montana, USA?

The current nitrogen dioxide (NO₂) concentration at Montana, USA is 3.321 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-09-03T22:00:00.000Z	54 \| moderate	11.127 \| good	49.473 \| good	53.362 \| good	0.208 \| good	0.251 \| good	0.154 \| good
2025-09-03T23:00:00.000Z	56 \| moderate	11.706 \| good	51.661 \| good	52.599 \| good	0.209 \| good	0.297 \| good	0.157 \| good
2025-09-04T00:00:00.000Z	56 \| moderate	12.096 \| good	53.914 \| good	48.285 \| good	0.219 \| good	0.34 \| good	0.161 \| good
2025-09-04T01:00:00.000Z	58 \| moderate	13.106 \| fine	59.091 \| fine	41.561 \| good	0.205 \| good	1.063 \| good	0.167 \| good
2025-09-04T02:00:00.000Z	58 \| moderate	13.404 \| fine	60.739 \| fine	36.725 \| good	0.192 \| good	1.785 \| good	0.173 \| good
2025-09-04T03:00:00.000Z	62 \| moderate	14.715 \| fine	65.355 \| fine	33.375 \| good	0.179 \| good	2.508 \| good	0.179 \| good
2025-09-04T04:00:00.000Z	62 \| moderate	15.162 \| fine	68.666 \| fine	31.674 \| good	0.168 \| good	2.78 \| good	0.18 \| good
2025-09-04T05:00:00.000Z	60 \| moderate	14.424 \| fine	64.833 \| fine	29.532 \| good	0.157 \| good	3.052 \| good	0.181 \| good
2025-09-04T06:00:00.000Z	58 \| moderate	12.786 \| fine	57 \| fine	30.233 \| good	0.146 \| good	3.324 \| good	0.183 \| good
2025-09-04T07:00:00.000Z	58 \| moderate	13.08 \| fine	58.736 \| fine	31.772 \| good	0.141 \| good	3.16 \| good	0.178 \| good
2025-09-04T08:00:00.000Z	56 \| moderate	12.385 \| fine	56.402 \| fine	30.235 \| good	0.137 \| good	2.995 \| good	0.173 \| good
2025-09-04T09:00:00.000Z	62 \| moderate	14.858 \| fine	66.442 \| fine	31.61 \| good	0.133 \| good	2.83 \| good	0.168 \| good
2025-09-04T10:00:00.000Z	79 \| moderate	23.841 \| fine	103.79 \| fine	36.131 \| good	0.137 \| good	2.458 \| good	0.162 \| good
2025-09-04T11:00:00.000Z	110 \| sensitive	39.477 \| moderate	174.127 \| moderate	41.528 \| good	0.147 \| good	1.915 \| good	0.177 \| good
2025-09-04T12:00:00.000Z	54 \| moderate	11.483 \| good	50.833 \| good	31.594 \| good	0.155 \| good	1.764 \| good	0.175 \| good
2025-09-04T13:00:00.000Z	60 \| moderate	14.114 \| fine	62.724 \| fine	31.652 \| good	0.322 \| good	1.478 \| good	0.187 \| good
2025-09-04T14:00:00.000Z	77 \| moderate	22.973 \| fine	100.739 \| fine	31.321 \| good	0.487 \| good	1.185 \| good	0.198 \| good
2025-09-04T15:00:00.000Z	79 \| moderate	24.05 \| fine	105.091 \| fine	27.183 \| good	0.653 \| good	0.896 \| good	0.209 \| good
2025-09-04T16:00:00.000Z	75 \| moderate	22.269 \| fine	97.448 \| fine	28.019 \| good	0.517 \| good	0.685 \| good	0.215 \| good
2025-09-04T17:00:00.000Z	67 \| moderate	17.792 \| fine	79.258 \| fine	36.788 \| good	0.381 \| good	0.475 \| good	0.221 \| good
2025-09-04T18:00:00.000Z	62 \| moderate	15.371 \| fine	69.258 \| fine	35.184 \| good	0.244 \| good	0.264 \| good	0.226 \| good
2025-09-04T19:00:00.000Z	66 \| moderate	16.713 \| fine	73.522 \| fine	39.191 \| good	0.214 \| good	0.226 \| good	0.214 \| good
2025-09-04T20:00:00.000Z	64 \| moderate	15.719 \| fine	69.448 \| fine	41.395 \| good	0.183 \| good	0.188 \| good	0.201 \| good
2025-09-04T21:00:00.000Z	66 \| moderate	16.707 \| fine	73.522 \| fine	41.676 \| good	0.153 \| good	0.149 \| good	0.188 \| good
2025-09-04T22:00:00.000Z	64 \| moderate	16.277 \| fine	72.81 \| fine	40.745 \| good	0.162 \| good	0.176 \| good	0.182 \| good
2025-09-04T23:00:00.000Z	66 \| moderate	16.724 \| fine	74.736 \| fine	40.988 \| good	0.099 \| good	0.195 \| good	0.157 \| good
2025-09-05T00:00:00.000Z	62 \| moderate	15.377 \| fine	68.907 \| fine	43.224 \| good	0.091 \| good	0.22 \| good	0.151 \| good
2025-09-05T01:00:00.000Z	66 \| moderate	17.378 \| fine	76.833 \| fine	42.724 \| good	0.101 \| good	0.527 \| good	0.151 \| good
2025-09-05T02:00:00.000Z	64 \| moderate	16.327 \| fine	72.81 \| fine	37.372 \| good	0.111 \| good	0.835 \| good	0.152 \| good
2025-09-05T03:00:00.000Z	67 \| moderate	18.062 \| fine	79.355 \| fine	35.741 \| good	0.122 \| good	1.143 \| good	0.152 \| good
2025-09-05T04:00:00.000Z	67 \| moderate	17.561 \| fine	78.739 \| fine	32.287 \| good	0.146 \| good	1.495 \| good	0.154 \| good
2025-09-05T05:00:00.000Z	67 \| moderate	17.548 \| fine	78.666 \| fine	30.581 \| good	0.171 \| good	1.846 \| good	0.157 \| good
2025-09-05T06:00:00.000Z	67 \| moderate	17.92 \| fine	79 \| fine	30.633 \| good	0.195 \| good	2.198 \| good	0.159 \| good
2025-09-05T07:00:00.000Z	67 \| moderate	17.601 \| fine	79 \| fine	27.542 \| good	0.223 \| good	2.412 \| good	0.159 \| good
2025-09-05T08:00:00.000Z	66 \| moderate	16.64 \| fine	73 \| fine	26.912 \| good	0.25 \| good	2.625 \| good	0.16 \| good
2025-09-05T09:00:00.000Z	64 \| moderate	15.772 \| fine	70.288 \| fine	26.246 \| good	0.277 \| good	2.838 \| good	0.161 \| good
2025-09-05T10:00:00.000Z	64 \| moderate	16.218 \| fine	72.311 \| fine	26.969 \| good	0.295 \| good	2.957 \| good	0.16 \| good
2025-09-05T11:00:00.000Z	62 \| moderate	15.288 \| fine	68.759 \| fine	29.204 \| good	0.219 \| good	2.987 \| good	0.192 \| good
2025-09-05T12:00:00.000Z	60 \| moderate	14.288 \| fine	64.144 \| fine	27.473 \| good	0.245 \| good	3.052 \| good	0.192 \| good
2025-09-05T13:00:00.000Z	60 \| moderate	14.119 \| fine	62.856 \| fine	26.673 \| good	0.33 \| good	2.27 \| good	0.189 \| good
2025-09-05T14:00:00.000Z	60 \| moderate	13.71 \| fine	61.096 \| fine	29.274 \| good	0.414 \| good	1.488 \| good	0.187 \| good
2025-09-05T15:00:00.000Z	62 \| moderate	14.643 \| fine	64.929 \| fine	30.901 \| good	0.499 \| good	0.705 \| good	0.184 \| good
2025-09-05T16:00:00.000Z	64 \| moderate	15.711 \| fine	70.666 \| fine	35.877 \| good	0.477 \| good	0.542 \| good	0.18 \| good
2025-09-05T17:00:00.000Z	60 \| moderate	13.589 \| fine	60.833 \| fine	40.857 \| good	0.456 \| good	0.379 \| good	0.175 \| good
2025-09-05T18:00:00.000Z	58 \| moderate	12.706 \| fine	56.833 \| fine	42.582 \| good	0.434 \| good	0.216 \| good	0.171 \| good
2025-09-05T19:00:00.000Z	54 \| moderate	10.909 \| good	48.224 \| good	45.458 \| good	0.403 \| good	0.206 \| good	0.166 \| good
2025-09-05T20:00:00.000Z	54 \| moderate	10.836 \| good	47.953 \| good	47.524 \| good	0.372 \| good	0.197 \| good	0.162 \| good
2025-09-05T21:00:00.000Z	54 \| moderate	11.077 \| good	48.916 \| good	46.778 \| good	0.341 \| good	0.187 \| good	0.157 \| good
2025-09-05T21:00:00.000Z	73 \| moderate	21.018 \| fine	76.9 \| fine	34.614 \| good	2.695 \| good	1.808 \| good	0.212 \| good
2025-09-05T18:00:00.000Z	60 \| moderate	13.73 \| fine	61.21 \| fine	41.894 \| good	0.436 \| good	0.217 \| good	0.171 \| good
2025-09-05T19:00:00.000Z	56 \| moderate	11.596 \| good	51.13 \| good	45.951 \| good	0.405 \| good	0.207 \| good	0.166 \| good
2025-09-05T20:00:00.000Z	54 \| moderate	11.402 \| good	50.285 \| good	49.321 \| good	0.373 \| good	0.197 \| good	0.162 \| good
2025-09-05T21:00:00.000Z	54 \| moderate	11.163 \| good	49.223 \| good	48.357 \| good	0.342 \| good	0.187 \| good	0.157 \| good
2025-09-05T22:00:00.000Z	54 \| moderate	10.676 \| good	47.617 \| good	47.344 \| good	0.332 \| good	0.218 \| good	0.156 \| good
2025-09-05T23:00:00.000Z	54 \| moderate	11.28 \| good	50.059 \| good	47.639 \| good	0.322 \| good	0.248 \| good	0.155 \| good
2025-09-06T00:00:00.000Z	52 \| moderate	9.725 \| good	43.105 \| good	45.847 \| good	0.312 \| good	0.279 \| good	0.154 \| good
2025-09-06T01:00:00.000Z	49 \| good	9.01 \| good	40.785 \| good	42.235 \| good	0.294 \| good	0.919 \| good	0.158 \| good
2025-09-06T02:00:00.000Z	49 \| good	9.5 \| good	42.089 \| good	40.331 \| good	0.276 \| good	1.56 \| good	0.163 \| good
2025-09-06T03:00:00.000Z	54 \| moderate	10.79 \| good	47.956 \| good	39.121 \| good	0.258 \| good	2.2 \| good	0.167 \| good
2025-09-06T04:00:00.000Z	54 \| moderate	10.621 \| good	47.348 \| good	35.257 \| good	0.248 \| good	2.568 \| good	0.17 \| good
2025-09-06T05:00:00.000Z	54 \| moderate	11.324 \| good	50.018 \| good	31.864 \| good	0.238 \| good	2.936 \| good	0.174 \| good
2025-09-06T06:00:00.000Z	54 \| moderate	11.494 \| good	50.886 \| good	31.446 \| good	0.228 \| good	3.305 \| good	0.177 \| good
2025-09-06T07:00:00.000Z	56 \| moderate	12.183 \| fine	54.784 \| good	31.547 \| good	0.225 \| good	3.378 \| good	0.178 \| good
2025-09-06T08:00:00.000Z	58 \| moderate	12.588 \| fine	57.246 \| fine	32.76 \| good	0.223 \| good	3.451 \| good	0.179 \| good
2025-09-06T09:00:00.000Z	60 \| moderate	13.673 \| fine	61.336 \| fine	32.242 \| good	0.22 \| good	3.524 \| good	0.18 \| good
2025-09-06T10:00:00.000Z	64 \| moderate	16.282 \| fine	72.04 \| fine	33.688 \| good	0.218 \| good	3.52 \| good	0.179 \| good
2025-09-06T11:00:00.000Z	71 \| moderate	19.769 \| fine	87.19 \| fine	35.801 \| good	0.216 \| good	3.515 \| good	0.178 \| good
2025-09-06T12:00:00.000Z	73 \| moderate	21.334 \| fine	93.636 \| fine	33.931 \| good	0.213 \| good	3.511 \| good	0.177 \| good
2025-09-06T13:00:00.000Z	75 \| moderate	22.03 \| fine	97.036 \| fine	32.903 \| good	0.22 \| good	2.965 \| good	0.179 \| good
2025-09-06T14:00:00.000Z	77 \| moderate	23.164 \| fine	101.761 \| fine	30.807 \| good	0.226 \| good	2.419 \| good	0.181 \| good
2025-09-06T15:00:00.000Z	77 \| moderate	22.858 \| fine	100.499 \| fine	34.84 \| good	0.233 \| good	1.874 \| good	0.183 \| good
2025-09-06T16:00:00.000Z	84 \| moderate	27.096 \| fine	118.1 \| fine	37.441 \| good	0.222 \| good	1.346 \| good	0.17 \| good
2025-09-06T17:00:00.000Z	84 \| moderate	27.373 \| fine	118.616 \| fine	45.668 \| good	0.211 \| good	0.819 \| good	0.157 \| good
2025-09-06T18:00:00.000Z	84 \| moderate	27.248 \| fine	118.476 \| fine	48.466 \| good	0.2 \| good	0.291 \| good	0.144 \| good
2025-09-06T19:00:00.000Z	81 \| moderate	24.946 \| fine	108.792 \| fine	49.914 \| good	0.191 \| good	0.272 \| good	0.142 \| good
2025-09-06T20:00:00.000Z	82 \| moderate	26.044 \| fine	112.821 \| fine	50.285 \| good	0.182 \| good	0.252 \| good	0.14 \| good
2025-09-06T21:00:00.000Z	81 \| moderate	25.39 \| fine	110.641 \| fine	48.853 \| good	0.173 \| good	0.233 \| good	0.137 \| good
2025-09-06T22:00:00.000Z	77 \| moderate	23.405 \| fine	102.67 \| fine	47.819 \| good	0.176 \| good	0.269 \| good	0.136 \| good
2025-09-06T23:00:00.000Z	75 \| moderate	21.716 \| fine	95.169 \| fine	47.684 \| good	0.178 \| good	0.305 \| good	0.135 \| good
2025-09-07T00:00:00.000Z	71 \| moderate	20.288 \| fine	88.974 \| fine	47.505 \| good	0.18 \| good	0.34 \| good	0.134 \| good
2025-09-07T01:00:00.000Z	67 \| moderate	18.183 \| fine	80.31 \| fine	43.024 \| good	0.189 \| good	0.915 \| good	0.139 \| good
2025-09-07T02:00:00.000Z	67 \| moderate	17.838 \| fine	78.93 \| fine	42.07 \| good	0.197 \| good	1.489 \| good	0.143 \| good
2025-09-07T03:00:00.000Z	67 \| moderate	18.017 \| fine	79.579 \| fine	39.535 \| good	0.206 \| good	2.064 \| good	0.148 \| good
2025-09-07T04:00:00.000Z	64 \| moderate	15.772 \| fine	70.031 \| fine	41.416 \| good	0.221 \| good	2.205 \| good	0.148 \| good
2025-09-07T05:00:00.000Z	60 \| moderate	14.061 \| fine	62.769 \| fine	39.324 \| good	0.236 \| good	2.346 \| good	0.147 \| good
2025-09-07T06:00:00.000Z	58 \| moderate	12.573 \| fine	56.081 \| fine	39.257 \| good	0.25 \| good	2.487 \| good	0.147 \| good
2025-09-07T07:00:00.000Z	58 \| moderate	13.038 \| fine	58.545 \| fine	39.224 \| good	0.27 \| good	2.481 \| good	0.146 \| good
2025-09-07T08:00:00.000Z	64 \| moderate	15.615 \| fine	69.449 \| fine	41.721 \| good	0.289 \| good	2.476 \| good	0.144 \| good
2025-09-07T09:00:00.000Z	71 \| moderate	20.109 \| fine	88.453 \| fine	41.047 \| good	0.308 \| good	2.47 \| good	0.143 \| good
2025-09-07T10:00:00.000Z	84 \| moderate	26.611 \| fine	115.955 \| fine	42.058 \| good	0.302 \| good	2.435 \| good	0.141 \| good
2025-09-07T11:00:00.000Z	97 \| moderate	33.633 \| fine	145.705 \| fine	44.978 \| good	0.297 \| good	2.4 \| good	0.14 \| good
2025-09-07T12:00:00.000Z	94 \| moderate	32.186 \| fine	139.023 \| fine	43.201 \| good	0.292 \| good	2.365 \| good	0.138 \| good
2025-09-07T13:00:00.000Z	90 \| moderate	29.717 \| fine	129.038 \| fine	40.132 \| good	0.278 \| good	2.132 \| good	0.143 \| good
2025-09-07T14:00:00.000Z	86 \| moderate	27.579 \| fine	119.879 \| fine	34.521 \| good	0.263 \| good	1.899 \| good	0.148 \| good
2025-09-07T15:00:00.000Z	90 \| moderate	30.049 \| fine	129.985 \| fine	36.737 \| good	0.249 \| good	1.667 \| good	0.152 \| good
2025-09-07T16:00:00.000Z	102 \| sensitive	36.364 \| moderate	158.409 \| moderate	44.635 \| good	0.232 \| good	1.226 \| good	0.16 \| good
2025-09-07T17:00:00.000Z	112 \| sensitive	39.636 \| moderate	174.938 \| moderate	52.117 \| good	0.215 \| good	0.786 \| good	0.168 \| good

Montana, USA live air quality index now

Major air pollutants in Montana, USA

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

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Air quality in cities of Montana, USA

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Frequently asked questions

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What is the current concentration of PM2.5 in Montana, USA?

What is the current concentration of PM10 in Montana, USA?

What is the current concentration of carbon monoxide (CO) in Montana, USA?

What is the current concentration of sulfur dioxide (SO2) in Montana, USA?

What is the current concentration of ozone (O3) in Montana, USA?

What is the current concentration of nitrogen dioxide (NO2) in Montana, USA?

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 Montana, USA?

What is the current concentration of PM₁₀ in Montana, USA?

What is the current concentration of sulfur dioxide (SO₂) in Montana, USA?

What is the current concentration of ozone (O₃) in Montana, USA?

What is the current concentration of nitrogen dioxide (NO₂) in Montana, USA?