What are the current PM10 levels at Great Falls, Montana?

The current PM10 levels in Great Falls, Montana are 38.996 μg/m3.

What are the current sulfur dioxide (SO2) levels at Great Falls, Montana?

The current sulfur dioxide (SO2) levels in Great Falls, Montana are 0.518 ppb.

What are the current ozone (O3) levels at Great Falls, Montana?

The current ozone (O3) levels at Great Falls, Montana is 21.12 ppm.

What are the current nitrogen dioxide (NO2) levels at Great Falls, Montana?

The current nitrogen dioxide (NO2) levels at Great Falls, Montana is 6.721 ppb.

Real-time air quality index in Great Falls, Montana today

Q: What are the current PM2.5 levels in Great Falls, Montana?

The measured PM2.5 levels in Great Falls, Montana at present are 8.799 μg/m3.

Stay updated with real-time air quality in Great Falls, Montana 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

Great Falls, Montana

Last updated: ... (Local time)

Common air pollutants in Great Falls, Montana

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

8.80 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

39.00 μg/m³

155

255

425

605+

Ozone (O₃)

21.12 ppb

201

201+

Sulfur Dioxide (SO₂)

0.52 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

6.72 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.25 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

Great Falls, Montana

Get Live Pollen Counts

Great Falls, Montana

Scroll To Air Quality Map

Track live Great Falls, Montana air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-10-20T13:00:00.000Z	44 \| good	8.3 \| good	36.998 \| good	32.113 \| good	0.908 \| good	5.277 \| good	0.234 \| good
2025-10-20T14:00:00.000Z	44 \| good	7.6 \| good	33.998 \| good	30.819 \| good	1.278 \| good	6.717 \| good	0.217 \| good
2025-10-20T15:00:00.000Z	49 \| good	8.899 \| good	38.996 \| good	24.621 \| good	2.214 \| good	5.429 \| good	0.253 \| good
2025-10-20T16:00:00.000Z	44 \| good	8.399 \| good	36.997 \| good	25.467 \| good	4.328 \| good	4.634 \| good	0.29 \| good
2025-10-20T17:00:00.000Z	44 \| good	8.399 \| good	36.998 \| good	23.212 \| good	4.925 \| good	1.882 \| good	0.272 \| good
2025-10-20T18:00:00.000Z	44 \| good	7.999 \| good	34.998 \| good	26.531 \| good	4.642 \| good	1.614 \| good	0.242 \| good
2025-10-20T19:00:00.000Z	44 \| good	8.099 \| good	35.996 \| good	29.734 \| good	4.543 \| good	1.079 \| good	0.209 \| good
2025-10-20T20:00:00.000Z	44 \| good	8.099 \| good	35.997 \| good	32.239 \| good	3.697 \| good	1.066 \| good	0.221 \| good
2025-10-20T21:00:00.000Z	44 \| good	7.599 \| good	33.997 \| good	33.189 \| good	2.968 \| good	1.311 \| good	0.221 \| good
2025-10-20T22:00:00.000Z	44 \| good	7.599 \| good	33.997 \| good	33.628 \| good	3.537 \| good	1.699 \| good	0.206 \| good
2025-10-20T23:00:00.000Z	33 \| good	6.5 \| good	28.998 \| good	31.559 \| good	4.344 \| good	0.95 \| good	0.206 \| good
2025-10-21T00:00:00.000Z	31 \| good	5.2 \| good	22.998 \| good	32.762 \| good	4.131 \| good	1.106 \| good	0.206 \| good
2025-10-21T01:00:00.000Z	30 \| good	5.2 \| good	22.998 \| good	32.213 \| good	4.5 \| good	1.147 \| good	0.206 \| good
2025-10-21T02:00:00.000Z	31 \| good	5.3 \| good	22.998 \| good	32.641 \| good	4.815 \| good	1.253 \| good	0.221 \| good
2025-10-21T03:00:00.000Z	27 \| good	4.571 \| good	20.036 \| good	27.662 \| good	0.273 \| good	1.064 \| good	0.114 \| good
2025-10-21T04:00:00.000Z	49 \| good	9.499 \| good	42.995 \| good	32.813 \| good	1.54 \| good	3.434 \| good	0.209 \| good
2025-10-21T05:00:00.000Z	49 \| good	9.499 \| good	42.995 \| good	26.495 \| good	1.062 \| good	3.908 \| good	0.221 \| good
2025-10-21T06:00:00.000Z	49 \| good	9.199 \| good	40.995 \| good	23.939 \| good	1.159 \| good	3.271 \| good	0.262 \| good
2025-10-21T07:00:00.000Z	49 \| good	9.199 \| good	40.995 \| good	19.251 \| good	1.136 \| good	2.239 \| good	0.242 \| good
2025-10-21T08:00:00.000Z	49 \| good	8.799 \| good	38.996 \| good	19.726 \| good	2.504 \| good	4.739 \| good	0.242 \| good
2025-10-21T09:00:00.000Z	49 \| good	8.799 \| good	38.996 \| good	17.447 \| good	0.537 \| good	5.547 \| good	0.242 \| good
2025-10-21T10:00:00.000Z	44 \| good	7.799 \| good	33.997 \| good	14.199 \| good	0.427 \| good	5.799 \| good	0.225 \| good
2025-10-21T11:00:00.000Z	38 \| good	7.3 \| good	31.997 \| good	22.134 \| good	1.29 \| good	6.954 \| good	0.242 \| good
2025-10-21T12:00:00.000Z	44 \| good	7.699 \| good	33.997 \| good	24.163 \| good	1.565 \| good	7.304 \| good	0.242 \| good
2025-10-21T13:00:00.000Z	44 \| good	7.599 \| good	33.997 \| good	26.374 \| good	1.565 \| good	7.816 \| good	0.257 \| good
2025-10-21T14:00:00.000Z	38 \| good	7.199 \| good	31.997 \| good	19.357 \| good	1.149 \| good	7.324 \| good	0.31 \| good
2025-10-21T15:00:00.000Z	38 \| good	7.499 \| good	32.998 \| good	19.556 \| good	0.584 \| good	7.515 \| good	0.367 \| good
2025-10-21T16:00:00.000Z	38 \| good	7.499 \| good	32.998 \| good	23.03 \| good	1.163 \| good	9.839 \| good	0.367 \| good
2025-10-21T17:00:00.000Z	38 \| good	7.499 \| good	32.998 \| good	26.385 \| good	1.393 \| good	10.456 \| good	0.388 \| good
2025-10-21T18:00:00.000Z	44 \| good	8 \| good	34.999 \| good	26.48 \| good	1.821 \| good	8.271 \| good	0.282 \| good
2025-10-21T19:00:00.000Z	44 \| good	7.8 \| good	33.998 \| good	28.609 \| good	1.444 \| good	2.185 \| good	0.24 \| good
2025-10-21T20:00:00.000Z	44 \| good	7.8 \| good	33.998 \| good	30.484 \| good	1.739 \| good	1.538 \| good	0.204 \| good
2025-10-21T21:00:00.000Z	44 \| good	7.699 \| good	33.997 \| good	36.864 \| good	1.156 \| good	1.53 \| good	0.204 \| good
2025-10-21T22:00:00.000Z	44 \| good	7.799 \| good	33.997 \| good	37.734 \| good	0.949 \| good	1.437 \| good	0.204 \| good
2025-10-21T23:00:00.000Z	44 \| good	7.699 \| good	33.997 \| good	38.28 \| good	1.462 \| good	1.822 \| good	0.204 \| good
2025-10-22T00:00:00.000Z	38 \| good	7.499 \| good	32.996 \| good	37.641 \| good	1.044 \| good	1.418 \| good	0.204 \| good
2025-10-22T01:00:00.000Z	38 \| good	7.499 \| good	32.997 \| good	37.413 \| good	0.732 \| good	1.944 \| good	0.204 \| good
2025-10-22T02:00:00.000Z	44 \| good	7.599 \| good	33.997 \| good	37.379 \| good	0.48 \| good	5.703 \| good	0.219 \| good
2025-10-22T03:00:00.000Z	27 \| good	5.152 \| good	22.3 \| good	18.255 \| good	0.292 \| good	4.206 \| good	0.135 \| good
2025-10-22T04:00:00.000Z	49 \| good	9.099 \| good	40.996 \| good	30.092 \| good	0.612 \| good	4.481 \| good	0.278 \| good
2025-10-22T05:00:00.000Z	54 \| moderate	10.799 \| good	47.995 \| good	27.542 \| good	0.686 \| good	5 \| good	0.234 \| good
2025-10-22T06:00:00.000Z	54 \| moderate	10.899 \| good	47.995 \| good	26.972 \| good	0.562 \| good	2.283 \| good	0.218 \| good
2025-10-22T07:00:00.000Z	52 \| moderate	10.399 \| good	45.995 \| good	26.49 \| good	0.586 \| good	1.882 \| good	0.203 \| good
2025-10-22T08:00:00.000Z	52 \| moderate	10.499 \| good	46.996 \| good	27.269 \| good	0.348 \| good	3.271 \| good	0.224 \| good
2025-10-22T09:00:00.000Z	54 \| moderate	10.599 \| good	46.995 \| good	25.427 \| good	0.662 \| good	3.641 \| good	0.209 \| good
2025-10-22T10:00:00.000Z	58 \| moderate	13.098 \| fine	58.993 \| fine	22.827 \| good	0.539 \| good	6.648 \| good	0.239 \| good
2025-10-22T11:00:00.000Z	33 \| good	6.499 \| good	28.997 \| good	24.126 \| good	0.673 \| good	7.861 \| good	0.239 \| good
2025-10-22T12:00:00.000Z	49 \| good	8.799 \| good	38.996 \| good	21.12 \| good	0.518 \| good	6.721 \| good	0.254 \| good
2025-10-22T12:00:00.000Z	49 \| good	8.799 \| good	38.996 \| good	21.12 \| good	0.518 \| good	6.721 \| good	0.254 \| good
2025-10-22T13:00:00.000Z	38 \| good	7.037 \| good	31.061 \| good	12.463 \| good	0.181 \| good	4.839 \| good	0.14 \| good
2025-10-22T14:00:00.000Z	44 \| good	8.115 \| good	35.831 \| good	9.721 \| good	0.176 \| good	4.81 \| good	0.146 \| good
2025-10-22T15:00:00.000Z	49 \| good	8.81 \| good	38.857 \| good	11.371 \| good	0.171 \| good	4.781 \| good	0.152 \| good
2025-10-22T16:00:00.000Z	44 \| good	7.586 \| good	33.179 \| good	18.531 \| good	0.193 \| good	3.771 \| good	0.144 \| good
2025-10-22T17:00:00.000Z	52 \| moderate	9.667 \| good	43.076 \| good	21.895 \| good	0.215 \| good	2.761 \| good	0.136 \| good
2025-10-22T18:00:00.000Z	54 \| moderate	11.062 \| good	48.971 \| good	27.33 \| good	0.237 \| good	1.751 \| good	0.128 \| good
2025-10-22T19:00:00.000Z	52 \| moderate	10.302 \| good	45.293 \| good	32.871 \| good	0.235 \| good	1.436 \| good	0.123 \| good
2025-10-22T20:00:00.000Z	33 \| good	5.972 \| good	26.773 \| good	35.708 \| good	0.234 \| good	1.122 \| good	0.118 \| good
2025-10-22T21:00:00.000Z	33 \| good	6.242 \| good	27.919 \| good	35.841 \| good	0.232 \| good	0.807 \| good	0.113 \| good
2025-10-22T22:00:00.000Z	38 \| good	6.949 \| good	30.919 \| good	35.036 \| good	0.22 \| good	1.382 \| good	0.118 \| good
2025-10-22T23:00:00.000Z	38 \| good	7.337 \| good	32.136 \| good	32.2 \| good	0.207 \| good	1.956 \| good	0.122 \| good
2025-10-23T00:00:00.000Z	33 \| good	5.867 \| good	25.387 \| good	26.081 \| good	0.195 \| good	2.53 \| good	0.126 \| good
2025-10-23T01:00:00.000Z	38 \| good	7.024 \| good	31.145 \| good	23.73 \| good	0.187 \| good	3.865 \| good	0.139 \| good
2025-10-23T02:00:00.000Z	33 \| good	6.36 \| good	28.165 \| good	21.466 \| good	0.179 \| good	5.2 \| good	0.152 \| good
2025-10-23T03:00:00.000Z	33 \| good	6.14 \| good	27.088 \| good	21.129 \| good	0.171 \| good	6.534 \| good	0.164 \| good
2025-10-23T04:00:00.000Z	44 \| good	8.015 \| good	35.095 \| good	21.476 \| good	0.154 \| good	5.791 \| good	0.157 \| good
2025-10-23T05:00:00.000Z	49 \| good	9.204 \| good	41.013 \| good	20.345 \| good	0.137 \| good	5.048 \| good	0.149 \| good
2025-10-23T06:00:00.000Z	49 \| good	9.456 \| good	42.094 \| good	18.9 \| good	0.12 \| good	4.305 \| good	0.142 \| good
2025-10-23T07:00:00.000Z	49 \| good	9.426 \| good	42.094 \| good	19.09 \| good	0.114 \| good	3.782 \| good	0.136 \| good
2025-10-23T08:00:00.000Z	54 \| moderate	11.402 \| good	50.812 \| good	18.143 \| good	0.107 \| good	3.259 \| good	0.13 \| good
2025-10-23T09:00:00.000Z	49 \| good	8.731 \| good	38.094 \| good	20.314 \| good	0.101 \| good	2.736 \| good	0.124 \| good
2025-10-23T10:00:00.000Z	38 \| good	7.017 \| good	31.059 \| good	18.698 \| good	0.105 \| good	2.634 \| good	0.122 \| good
2025-10-23T11:00:00.000Z	44 \| good	8.304 \| good	36.795 \| good	20.559 \| good	0.109 \| good	2.533 \| good	0.12 \| good
2025-10-23T12:00:00.000Z	49 \| good	8.825 \| good	39.122 \| good	23.023 \| good	0.112 \| good	2.431 \| good	0.119 \| good
2025-10-23T13:00:00.000Z	44 \| good	8.039 \| good	35.086 \| good	23.754 \| good	0.124 \| good	2.644 \| good	0.124 \| good
2025-10-23T14:00:00.000Z	54 \| moderate	10.583 \| good	47.049 \| good	22.471 \| good	0.136 \| good	2.858 \| good	0.129 \| good
2025-10-23T15:00:00.000Z	54 \| moderate	10.608 \| good	47.049 \| good	21.236 \| good	0.147 \| good	3.072 \| good	0.134 \| good
2025-10-23T16:00:00.000Z	52 \| moderate	10.135 \| good	45.013 \| good	29.055 \| good	0.181 \| good	2.389 \| good	0.129 \| good
2025-10-23T17:00:00.000Z	49 \| good	9.098 \| good	40.82 \| good	30.714 \| good	0.215 \| good	1.706 \| good	0.124 \| good
2025-10-23T18:00:00.000Z	52 \| moderate	9.511 \| good	42.895 \| good	33.749 \| good	0.249 \| good	1.022 \| good	0.119 \| good
2025-10-23T19:00:00.000Z	38 \| good	7.497 \| good	32.983 \| good	33.886 \| good	0.248 \| good	0.793 \| good	0.116 \| good
2025-10-23T20:00:00.000Z	33 \| good	6.326 \| good	28 \| good	33.627 \| good	0.246 \| good	0.564 \| good	0.112 \| good
2025-10-23T21:00:00.000Z	38 \| good	6.752 \| good	30 \| good	34.331 \| good	0.244 \| good	0.335 \| good	0.109 \| good
2025-10-23T22:00:00.000Z	38 \| good	6.771 \| good	30 \| good	33.192 \| good	0.235 \| good	0.693 \| good	0.112 \| good
2025-10-23T23:00:00.000Z	44 \| good	8.236 \| good	36.059 \| good	31.709 \| good	0.225 \| good	1.052 \| good	0.115 \| good
2025-10-24T00:00:00.000Z	38 \| good	7.01 \| good	31.028 \| good	30.339 \| good	0.216 \| good	1.411 \| good	0.118 \| good
2025-10-24T01:00:00.000Z	33 \| good	5.939 \| good	26.804 \| good	28.781 \| good	0.211 \| good	2.16 \| good	0.125 \| good
2025-10-24T02:00:00.000Z	33 \| good	6.46 \| good	28.989 \| good	28.115 \| good	0.206 \| good	2.908 \| good	0.132 \| good
2025-10-24T03:00:00.000Z	38 \| good	6.502 \| good	28.989 \| good	27.618 \| good	0.201 \| good	3.657 \| good	0.139 \| good
2025-10-24T04:00:00.000Z	44 \| good	7.627 \| good	33.813 \| good	27.555 \| good	0.204 \| good	3.247 \| good	0.135 \| good
2025-10-24T05:00:00.000Z	44 \| good	8.038 \| good	35.094 \| good	28.146 \| good	0.207 \| good	2.837 \| good	0.131 \| good
2025-10-24T06:00:00.000Z	30 \| good	2.206 \| good	2.357 \| good	31.776 \| good	0.211 \| good	2.43 \| good	0.127 \| good
2025-10-24T07:00:00.000Z	44 \| good	7.584 \| good	33.178 \| good	26.005 \| good	0.221 \| good	2.036 \| good	0.123 \| good
2025-10-24T08:00:00.000Z	44 \| good	7.818 \| good	34 \| good	25.532 \| good	0.232 \| good	1.644 \| good	0.12 \| good
2025-10-24T09:00:00.000Z	38 \| good	7.171 \| good	31.963 \| good	24.836 \| good	0.244 \| good	1.253 \| good	0.116 \| good
2025-10-24T10:00:00.000Z	44 \| good	7.94 \| good	34.919 \| good	20.994 \| good	0.252 \| good	1.25 \| good	0.116 \| good
2025-10-24T11:00:00.000Z	44 \| good	8.472 \| good	36.983 \| good	24.503 \| good	0.261 \| good	1.248 \| good	0.116 \| good
2025-10-24T12:00:00.000Z	32 \| good	1.996 \| good	2.168 \| good	35.456 \| good	0.271 \| good	1.234 \| good	0.116 \| good

Great Falls

Empower business decisions with accurate air quality data

Great Falls, Montana air quality map: Real-time AQI near you

0.28ppm

How accurate is Montana, USA air quality data?

Air quality measurements for Montana, 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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Check live rankings of places in the USA affected by air pollution.

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Frequently asked questions

How frequently is the air quality data for Great Falls, Montana updated?

Air quality data for Great Falls, Montana is updated on an hourly basis.

When did Great Falls, Montana experience the worst air quality in the last 24 hours?

The worst air quality in Great Falls, Montana was recorded at 10:00:00 on 2025-10-22.

When did Great Falls, Montana have its best air quality in the last 24 hours?

The best air quality in Great Falls, Montana was recorded at 03:00:00 on 2025-10-22.

What is the real-time air quality index for Great Falls, Montana?

The real-time air quality index in Great Falls, Montana is 49, currently categorized as Good.

Which pollutant is found most often in Great Falls, Montana?

The most common pollutant in Great Falls, Montana is PM2.5.

What can I do if the air quality in Great Falls, Montana is poor?

If the air quality in Great Falls, Montana is poor, limit outdoor activities and use a mask to safeguard your health.

What are the current PM_2.5 levels in Great Falls, Montana?

The measured PM_2.5 levels in Great Falls, Montana at present are 8.799 μg/m³.

What are the current PM₁₀ levels at Great Falls, Montana?

The current PM₁₀ levels in Great Falls, Montana are 38.996 μg/m³.

What are the current carbon monoxide (CO) levels at Great Falls, Montana?

The current carbon monoxide (CO) level in Great Falls, Montana is 0.254 ppm.

What are the current sulfur dioxide (SO₂) levels at Great Falls, Montana?

The current sulfur dioxide (SO₂) levels in Great Falls, Montana are 0.518 ppb.

What are the current ozone (O₃) levels at Great Falls, Montana?

The current ozone (O₃) levels at Great Falls, Montana is 21.12 ppm.

What are the current nitrogen dioxide (NO₂) levels at Great Falls, Montana?

The current nitrogen dioxide (NO₂) levels at Great Falls, Montana is 6.721 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-10-20T13:00:00.000Z	44 \| good	8.3 \| good	36.998 \| good	32.113 \| good	0.908 \| good	5.277 \| good	0.234 \| good
2025-10-20T14:00:00.000Z	44 \| good	7.6 \| good	33.998 \| good	30.819 \| good	1.278 \| good	6.717 \| good	0.217 \| good
2025-10-20T15:00:00.000Z	49 \| good	8.899 \| good	38.996 \| good	24.621 \| good	2.214 \| good	5.429 \| good	0.253 \| good
2025-10-20T16:00:00.000Z	44 \| good	8.399 \| good	36.997 \| good	25.467 \| good	4.328 \| good	4.634 \| good	0.29 \| good
2025-10-20T17:00:00.000Z	44 \| good	8.399 \| good	36.998 \| good	23.212 \| good	4.925 \| good	1.882 \| good	0.272 \| good
2025-10-20T18:00:00.000Z	44 \| good	7.999 \| good	34.998 \| good	26.531 \| good	4.642 \| good	1.614 \| good	0.242 \| good
2025-10-20T19:00:00.000Z	44 \| good	8.099 \| good	35.996 \| good	29.734 \| good	4.543 \| good	1.079 \| good	0.209 \| good
2025-10-20T20:00:00.000Z	44 \| good	8.099 \| good	35.997 \| good	32.239 \| good	3.697 \| good	1.066 \| good	0.221 \| good
2025-10-20T21:00:00.000Z	44 \| good	7.599 \| good	33.997 \| good	33.189 \| good	2.968 \| good	1.311 \| good	0.221 \| good
2025-10-20T22:00:00.000Z	44 \| good	7.599 \| good	33.997 \| good	33.628 \| good	3.537 \| good	1.699 \| good	0.206 \| good
2025-10-20T23:00:00.000Z	33 \| good	6.5 \| good	28.998 \| good	31.559 \| good	4.344 \| good	0.95 \| good	0.206 \| good
2025-10-21T00:00:00.000Z	31 \| good	5.2 \| good	22.998 \| good	32.762 \| good	4.131 \| good	1.106 \| good	0.206 \| good
2025-10-21T01:00:00.000Z	30 \| good	5.2 \| good	22.998 \| good	32.213 \| good	4.5 \| good	1.147 \| good	0.206 \| good
2025-10-21T02:00:00.000Z	31 \| good	5.3 \| good	22.998 \| good	32.641 \| good	4.815 \| good	1.253 \| good	0.221 \| good
2025-10-21T03:00:00.000Z	27 \| good	4.571 \| good	20.036 \| good	27.662 \| good	0.273 \| good	1.064 \| good	0.114 \| good
2025-10-21T04:00:00.000Z	49 \| good	9.499 \| good	42.995 \| good	32.813 \| good	1.54 \| good	3.434 \| good	0.209 \| good
2025-10-21T05:00:00.000Z	49 \| good	9.499 \| good	42.995 \| good	26.495 \| good	1.062 \| good	3.908 \| good	0.221 \| good
2025-10-21T06:00:00.000Z	49 \| good	9.199 \| good	40.995 \| good	23.939 \| good	1.159 \| good	3.271 \| good	0.262 \| good
2025-10-21T07:00:00.000Z	49 \| good	9.199 \| good	40.995 \| good	19.251 \| good	1.136 \| good	2.239 \| good	0.242 \| good
2025-10-21T08:00:00.000Z	49 \| good	8.799 \| good	38.996 \| good	19.726 \| good	2.504 \| good	4.739 \| good	0.242 \| good
2025-10-21T09:00:00.000Z	49 \| good	8.799 \| good	38.996 \| good	17.447 \| good	0.537 \| good	5.547 \| good	0.242 \| good
2025-10-21T10:00:00.000Z	44 \| good	7.799 \| good	33.997 \| good	14.199 \| good	0.427 \| good	5.799 \| good	0.225 \| good
2025-10-21T11:00:00.000Z	38 \| good	7.3 \| good	31.997 \| good	22.134 \| good	1.29 \| good	6.954 \| good	0.242 \| good
2025-10-21T12:00:00.000Z	44 \| good	7.699 \| good	33.997 \| good	24.163 \| good	1.565 \| good	7.304 \| good	0.242 \| good
2025-10-21T13:00:00.000Z	44 \| good	7.599 \| good	33.997 \| good	26.374 \| good	1.565 \| good	7.816 \| good	0.257 \| good
2025-10-21T14:00:00.000Z	38 \| good	7.199 \| good	31.997 \| good	19.357 \| good	1.149 \| good	7.324 \| good	0.31 \| good
2025-10-21T15:00:00.000Z	38 \| good	7.499 \| good	32.998 \| good	19.556 \| good	0.584 \| good	7.515 \| good	0.367 \| good
2025-10-21T16:00:00.000Z	38 \| good	7.499 \| good	32.998 \| good	23.03 \| good	1.163 \| good	9.839 \| good	0.367 \| good
2025-10-21T17:00:00.000Z	38 \| good	7.499 \| good	32.998 \| good	26.385 \| good	1.393 \| good	10.456 \| good	0.388 \| good
2025-10-21T18:00:00.000Z	44 \| good	8 \| good	34.999 \| good	26.48 \| good	1.821 \| good	8.271 \| good	0.282 \| good
2025-10-21T19:00:00.000Z	44 \| good	7.8 \| good	33.998 \| good	28.609 \| good	1.444 \| good	2.185 \| good	0.24 \| good
2025-10-21T20:00:00.000Z	44 \| good	7.8 \| good	33.998 \| good	30.484 \| good	1.739 \| good	1.538 \| good	0.204 \| good
2025-10-21T21:00:00.000Z	44 \| good	7.699 \| good	33.997 \| good	36.864 \| good	1.156 \| good	1.53 \| good	0.204 \| good
2025-10-21T22:00:00.000Z	44 \| good	7.799 \| good	33.997 \| good	37.734 \| good	0.949 \| good	1.437 \| good	0.204 \| good
2025-10-21T23:00:00.000Z	44 \| good	7.699 \| good	33.997 \| good	38.28 \| good	1.462 \| good	1.822 \| good	0.204 \| good
2025-10-22T00:00:00.000Z	38 \| good	7.499 \| good	32.996 \| good	37.641 \| good	1.044 \| good	1.418 \| good	0.204 \| good
2025-10-22T01:00:00.000Z	38 \| good	7.499 \| good	32.997 \| good	37.413 \| good	0.732 \| good	1.944 \| good	0.204 \| good
2025-10-22T02:00:00.000Z	44 \| good	7.599 \| good	33.997 \| good	37.379 \| good	0.48 \| good	5.703 \| good	0.219 \| good
2025-10-22T03:00:00.000Z	27 \| good	5.152 \| good	22.3 \| good	18.255 \| good	0.292 \| good	4.206 \| good	0.135 \| good
2025-10-22T04:00:00.000Z	49 \| good	9.099 \| good	40.996 \| good	30.092 \| good	0.612 \| good	4.481 \| good	0.278 \| good
2025-10-22T05:00:00.000Z	54 \| moderate	10.799 \| good	47.995 \| good	27.542 \| good	0.686 \| good	5 \| good	0.234 \| good
2025-10-22T06:00:00.000Z	54 \| moderate	10.899 \| good	47.995 \| good	26.972 \| good	0.562 \| good	2.283 \| good	0.218 \| good
2025-10-22T07:00:00.000Z	52 \| moderate	10.399 \| good	45.995 \| good	26.49 \| good	0.586 \| good	1.882 \| good	0.203 \| good
2025-10-22T08:00:00.000Z	52 \| moderate	10.499 \| good	46.996 \| good	27.269 \| good	0.348 \| good	3.271 \| good	0.224 \| good
2025-10-22T09:00:00.000Z	54 \| moderate	10.599 \| good	46.995 \| good	25.427 \| good	0.662 \| good	3.641 \| good	0.209 \| good
2025-10-22T10:00:00.000Z	58 \| moderate	13.098 \| fine	58.993 \| fine	22.827 \| good	0.539 \| good	6.648 \| good	0.239 \| good
2025-10-22T11:00:00.000Z	33 \| good	6.499 \| good	28.997 \| good	24.126 \| good	0.673 \| good	7.861 \| good	0.239 \| good
2025-10-22T12:00:00.000Z	49 \| good	8.799 \| good	38.996 \| good	21.12 \| good	0.518 \| good	6.721 \| good	0.254 \| good
2025-10-22T12:00:00.000Z	49 \| good	8.799 \| good	38.996 \| good	21.12 \| good	0.518 \| good	6.721 \| good	0.254 \| good
2025-10-22T13:00:00.000Z	38 \| good	7.037 \| good	31.061 \| good	12.463 \| good	0.181 \| good	4.839 \| good	0.14 \| good
2025-10-22T14:00:00.000Z	44 \| good	8.115 \| good	35.831 \| good	9.721 \| good	0.176 \| good	4.81 \| good	0.146 \| good
2025-10-22T15:00:00.000Z	49 \| good	8.81 \| good	38.857 \| good	11.371 \| good	0.171 \| good	4.781 \| good	0.152 \| good
2025-10-22T16:00:00.000Z	44 \| good	7.586 \| good	33.179 \| good	18.531 \| good	0.193 \| good	3.771 \| good	0.144 \| good
2025-10-22T17:00:00.000Z	52 \| moderate	9.667 \| good	43.076 \| good	21.895 \| good	0.215 \| good	2.761 \| good	0.136 \| good
2025-10-22T18:00:00.000Z	54 \| moderate	11.062 \| good	48.971 \| good	27.33 \| good	0.237 \| good	1.751 \| good	0.128 \| good
2025-10-22T19:00:00.000Z	52 \| moderate	10.302 \| good	45.293 \| good	32.871 \| good	0.235 \| good	1.436 \| good	0.123 \| good
2025-10-22T20:00:00.000Z	33 \| good	5.972 \| good	26.773 \| good	35.708 \| good	0.234 \| good	1.122 \| good	0.118 \| good
2025-10-22T21:00:00.000Z	33 \| good	6.242 \| good	27.919 \| good	35.841 \| good	0.232 \| good	0.807 \| good	0.113 \| good
2025-10-22T22:00:00.000Z	38 \| good	6.949 \| good	30.919 \| good	35.036 \| good	0.22 \| good	1.382 \| good	0.118 \| good
2025-10-22T23:00:00.000Z	38 \| good	7.337 \| good	32.136 \| good	32.2 \| good	0.207 \| good	1.956 \| good	0.122 \| good
2025-10-23T00:00:00.000Z	33 \| good	5.867 \| good	25.387 \| good	26.081 \| good	0.195 \| good	2.53 \| good	0.126 \| good
2025-10-23T01:00:00.000Z	38 \| good	7.024 \| good	31.145 \| good	23.73 \| good	0.187 \| good	3.865 \| good	0.139 \| good
2025-10-23T02:00:00.000Z	33 \| good	6.36 \| good	28.165 \| good	21.466 \| good	0.179 \| good	5.2 \| good	0.152 \| good
2025-10-23T03:00:00.000Z	33 \| good	6.14 \| good	27.088 \| good	21.129 \| good	0.171 \| good	6.534 \| good	0.164 \| good
2025-10-23T04:00:00.000Z	44 \| good	8.015 \| good	35.095 \| good	21.476 \| good	0.154 \| good	5.791 \| good	0.157 \| good
2025-10-23T05:00:00.000Z	49 \| good	9.204 \| good	41.013 \| good	20.345 \| good	0.137 \| good	5.048 \| good	0.149 \| good
2025-10-23T06:00:00.000Z	49 \| good	9.456 \| good	42.094 \| good	18.9 \| good	0.12 \| good	4.305 \| good	0.142 \| good
2025-10-23T07:00:00.000Z	49 \| good	9.426 \| good	42.094 \| good	19.09 \| good	0.114 \| good	3.782 \| good	0.136 \| good
2025-10-23T08:00:00.000Z	54 \| moderate	11.402 \| good	50.812 \| good	18.143 \| good	0.107 \| good	3.259 \| good	0.13 \| good
2025-10-23T09:00:00.000Z	49 \| good	8.731 \| good	38.094 \| good	20.314 \| good	0.101 \| good	2.736 \| good	0.124 \| good
2025-10-23T10:00:00.000Z	38 \| good	7.017 \| good	31.059 \| good	18.698 \| good	0.105 \| good	2.634 \| good	0.122 \| good
2025-10-23T11:00:00.000Z	44 \| good	8.304 \| good	36.795 \| good	20.559 \| good	0.109 \| good	2.533 \| good	0.12 \| good
2025-10-23T12:00:00.000Z	49 \| good	8.825 \| good	39.122 \| good	23.023 \| good	0.112 \| good	2.431 \| good	0.119 \| good
2025-10-23T13:00:00.000Z	44 \| good	8.039 \| good	35.086 \| good	23.754 \| good	0.124 \| good	2.644 \| good	0.124 \| good
2025-10-23T14:00:00.000Z	54 \| moderate	10.583 \| good	47.049 \| good	22.471 \| good	0.136 \| good	2.858 \| good	0.129 \| good
2025-10-23T15:00:00.000Z	54 \| moderate	10.608 \| good	47.049 \| good	21.236 \| good	0.147 \| good	3.072 \| good	0.134 \| good
2025-10-23T16:00:00.000Z	52 \| moderate	10.135 \| good	45.013 \| good	29.055 \| good	0.181 \| good	2.389 \| good	0.129 \| good
2025-10-23T17:00:00.000Z	49 \| good	9.098 \| good	40.82 \| good	30.714 \| good	0.215 \| good	1.706 \| good	0.124 \| good
2025-10-23T18:00:00.000Z	52 \| moderate	9.511 \| good	42.895 \| good	33.749 \| good	0.249 \| good	1.022 \| good	0.119 \| good
2025-10-23T19:00:00.000Z	38 \| good	7.497 \| good	32.983 \| good	33.886 \| good	0.248 \| good	0.793 \| good	0.116 \| good
2025-10-23T20:00:00.000Z	33 \| good	6.326 \| good	28 \| good	33.627 \| good	0.246 \| good	0.564 \| good	0.112 \| good
2025-10-23T21:00:00.000Z	38 \| good	6.752 \| good	30 \| good	34.331 \| good	0.244 \| good	0.335 \| good	0.109 \| good
2025-10-23T22:00:00.000Z	38 \| good	6.771 \| good	30 \| good	33.192 \| good	0.235 \| good	0.693 \| good	0.112 \| good
2025-10-23T23:00:00.000Z	44 \| good	8.236 \| good	36.059 \| good	31.709 \| good	0.225 \| good	1.052 \| good	0.115 \| good
2025-10-24T00:00:00.000Z	38 \| good	7.01 \| good	31.028 \| good	30.339 \| good	0.216 \| good	1.411 \| good	0.118 \| good
2025-10-24T01:00:00.000Z	33 \| good	5.939 \| good	26.804 \| good	28.781 \| good	0.211 \| good	2.16 \| good	0.125 \| good
2025-10-24T02:00:00.000Z	33 \| good	6.46 \| good	28.989 \| good	28.115 \| good	0.206 \| good	2.908 \| good	0.132 \| good
2025-10-24T03:00:00.000Z	38 \| good	6.502 \| good	28.989 \| good	27.618 \| good	0.201 \| good	3.657 \| good	0.139 \| good
2025-10-24T04:00:00.000Z	44 \| good	7.627 \| good	33.813 \| good	27.555 \| good	0.204 \| good	3.247 \| good	0.135 \| good
2025-10-24T05:00:00.000Z	44 \| good	8.038 \| good	35.094 \| good	28.146 \| good	0.207 \| good	2.837 \| good	0.131 \| good
2025-10-24T06:00:00.000Z	30 \| good	2.206 \| good	2.357 \| good	31.776 \| good	0.211 \| good	2.43 \| good	0.127 \| good
2025-10-24T07:00:00.000Z	44 \| good	7.584 \| good	33.178 \| good	26.005 \| good	0.221 \| good	2.036 \| good	0.123 \| good
2025-10-24T08:00:00.000Z	44 \| good	7.818 \| good	34 \| good	25.532 \| good	0.232 \| good	1.644 \| good	0.12 \| good
2025-10-24T09:00:00.000Z	38 \| good	7.171 \| good	31.963 \| good	24.836 \| good	0.244 \| good	1.253 \| good	0.116 \| good
2025-10-24T10:00:00.000Z	44 \| good	7.94 \| good	34.919 \| good	20.994 \| good	0.252 \| good	1.25 \| good	0.116 \| good
2025-10-24T11:00:00.000Z	44 \| good	8.472 \| good	36.983 \| good	24.503 \| good	0.261 \| good	1.248 \| good	0.116 \| good
2025-10-24T12:00:00.000Z	32 \| good	1.996 \| good	2.168 \| good	35.456 \| good	0.271 \| good	1.234 \| good	0.116 \| good

Real-time air quality index in Great Falls, Montana today

Common air pollutants in Great Falls, Montana

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live Great Falls, Montana air quality forecast and history

Empower business decisions with accurate air quality data

Great Falls, Montana air quality map: Real-time AQI near you

Air quality in nearby cities

Helena, Montana

ButteSilver Bow, Montana

Belgrade, Montana

Bozeman, Montana

Missoula, Montana

Kalispell, Montana

How accurate is Montana, USA air quality data?

Air quality levels in US

Frequently asked questions

How frequently is the air quality data for Great Falls, Montana updated?

When did Great Falls, Montana experience the worst air quality in the last 24 hours?

When did Great Falls, Montana have its best air quality in the last 24 hours?

What is the real-time air quality index for Great Falls, Montana?

Which pollutant is found most often in Great Falls, Montana?

What can I do if the air quality in Great Falls, Montana is poor?

What are the current PM2.5 levels in Great Falls, Montana?

What are the current PM10 levels at Great Falls, Montana?

What are the current carbon monoxide (CO) levels at Great Falls, Montana?

What are the current sulfur dioxide (SO2) levels at Great Falls, Montana?

What are the current ozone (O3) levels at Great Falls, Montana?

What are the current nitrogen dioxide (NO2) levels at Great Falls, Montana?

Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

What are the current PM_2.5 levels in Great Falls, Montana?

What are the current PM₁₀ levels at Great Falls, Montana?

What are the current sulfur dioxide (SO₂) levels at Great Falls, Montana?

What are the current ozone (O₃) levels at Great Falls, Montana?

What are the current nitrogen dioxide (NO₂) levels at Great Falls, Montana?