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

The current PM10 levels in Great Falls, Montana are 58.998 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 2.36 ppb.

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

The current ozone (O3) levels at Great Falls, Montana is 39.697 ppm.

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

The current nitrogen dioxide (NO2) levels at Great Falls, Montana is 2.57 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 13.2 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)

Moderate

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)

13.20 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

59.00 μg/m³

155

255

425

605+

Ozone (O₃)

39.70 ppb

201

201+

Sulfur Dioxide (SO₂)

2.36 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

2.57 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.18 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
2026-08-11T10:00:00.000Z	102 \| sensitive	36.099 \| moderate	156.996 \| moderate	37.093 \| good	0.805 \| good	2.44 \| good	0.239 \| good
2026-08-11T11:00:00.000Z	113 \| sensitive	40.498 \| moderate	178.992 \| moderate	37.814 \| good	0.704 \| good	3.278 \| good	0.27 \| good
2026-08-11T12:00:00.000Z	120 \| sensitive	43.398 \| moderate	192.989 \| moderate	33.632 \| good	0.73 \| good	3.884 \| good	0.254 \| good
2026-08-11T13:00:00.000Z	120 \| sensitive	43.398 \| moderate	192.989 \| moderate	38.008 \| good	0.661 \| good	4.1 \| good	0.256 \| good
2026-08-11T14:00:00.000Z	116 \| sensitive	41.498 \| moderate	184.99 \| moderate	36.725 \| good	0.705 \| good	7.698 \| good	0.322 \| good
2026-08-11T15:00:00.000Z	105 \| sensitive	36.898 \| moderate	160.993 \| moderate	34.81 \| good	0.863 \| good	6.308 \| good	0.322 \| good
2026-08-11T16:00:00.000Z	96 \| moderate	33.199 \| fine	142.996 \| fine	35.054 \| good	0.899 \| good	6.556 \| good	0.322 \| good
2026-08-11T17:00:00.000Z	96 \| moderate	32.999 \| fine	142.996 \| fine	36.787 \| good	1.528 \| good	4.229 \| good	0.322 \| good
2026-08-11T18:00:00.000Z	119 \| sensitive	42.898 \| moderate	190.99 \| moderate	44.334 \| good	2.437 \| good	3.523 \| good	0.293 \| good
2026-08-11T19:00:00.000Z	137 \| sensitive	49.697 \| moderate	224.984 \| moderate	41.803 \| good	1.902 \| good	3.09 \| good	0.287 \| good
2026-08-11T20:00:00.000Z	124 \| sensitive	44.997 \| moderate	200.988 \| moderate	44.955 \| good	0.773 \| good	2.539 \| good	0.225 \| good
2026-08-11T21:00:00.000Z	115 \| sensitive	41.198 \| moderate	182.989 \| moderate	54.904 \| good	0.841 \| good	1.676 \| good	0.225 \| good
2026-08-11T22:00:00.000Z	107 \| sensitive	37.898 \| moderate	166.99 \| moderate	51.843 \| good	0.851 \| good	1.43 \| good	0.208 \| good
2026-08-11T23:00:00.000Z	99 \| moderate	34.799 \| fine	150.994 \| fine	57.343 \| fine	3.734 \| good	1.688 \| good	0.229 \| good
2026-08-12T00:00:00.000Z	90 \| moderate	29.6 \| fine	128.998 \| fine	56.674 \| fine	1.128 \| good	2.168 \| good	0.257 \| good
2026-08-12T01:00:00.000Z	81 \| moderate	25.2 \| fine	111.001 \| fine	59.146 \| fine	0.911 \| good	2.176 \| good	0.257 \| good
2026-08-12T02:00:00.000Z	75 \| moderate	21.901 \| fine	97.003 \| fine	60.326 \| fine	5.368 \| good	2.229 \| good	0.257 \| good
2026-08-12T03:00:00.000Z	110 \| sensitive	38.716 \| moderate	169.83 \| moderate	56.85 \| fine	0.257 \| good	1.391 \| good	0.182 \| good
2026-08-12T04:00:00.000Z	73 \| moderate	21.302 \| fine	93.009 \| fine	51.272 \| good	2.766 \| good	4.492 \| good	0.272 \| good
2026-08-12T05:00:00.000Z	81 \| moderate	24.502 \| fine	107.007 \| fine	45.926 \| good	2.277 \| good	3.496 \| good	0.266 \| good
2026-08-12T06:00:00.000Z	81 \| moderate	24.502 \| fine	107.007 \| fine	49.857 \| good	1.373 \| good	3.52 \| good	0.251 \| good
2026-08-12T07:00:00.000Z	84 \| moderate	26.501 \| fine	115.006 \| fine	36.855 \| good	1.679 \| good	3.948 \| good	0.203 \| good
2026-08-12T08:00:00.000Z	71 \| moderate	19.902 \| fine	87.009 \| fine	37.06 \| good	1.456 \| good	3.249 \| good	0.232 \| good
2026-08-12T09:00:00.000Z	77 \| moderate	22.601 \| fine	99.005 \| fine	37.996 \| good	1.666 \| good	5.009 \| good	0.232 \| good
2026-08-12T10:00:00.000Z	90 \| moderate	30.2 \| fine	131.001 \| fine	45.238 \| good	1.296 \| good	3.164 \| good	0.2 \| good
2026-08-12T11:00:00.000Z	90 \| moderate	30.2 \| fine	131 \| fine	47.741 \| good	1.131 \| good	1.866 \| good	0.2 \| good
2026-08-12T12:00:00.000Z	82 \| moderate	25.5 \| fine	111.001 \| fine	50.132 \| good	1.619 \| good	2.292 \| good	0.199 \| good
2026-08-12T13:00:00.000Z	82 \| moderate	25.5 \| fine	111.001 \| fine	47.767 \| good	1.631 \| good	3.291 \| good	0.232 \| good
2026-08-12T14:00:00.000Z	75 \| moderate	22 \| fine	97.001 \| fine	51.304 \| good	0.943 \| good	2.686 \| good	0.232 \| good
2026-08-12T15:00:00.000Z	71 \| moderate	20.4 \| fine	89.001 \| fine	50.101 \| good	1.098 \| good	3.585 \| good	0.232 \| good
2026-08-12T16:00:00.000Z	71 \| moderate	20.4 \| fine	89.001 \| fine	46.262 \| good	1.777 \| good	4.878 \| good	0.232 \| good
2026-08-12T17:00:00.000Z	73 \| moderate	20.6 \| fine	90.998 \| fine	42.583 \| good	2.684 \| good	3.734 \| good	0.265 \| good
2026-08-12T18:00:00.000Z	77 \| moderate	22.699 \| fine	98.997 \| fine	46.65 \| good	3.718 \| good	2.455 \| good	0.232 \| good
2026-08-12T19:00:00.000Z	102 \| sensitive	35.798 \| moderate	156.989 \| moderate	46.814 \| good	6.041 \| good	2.031 \| good	0.247 \| good
2026-08-12T20:00:00.000Z	90 \| moderate	30.398 \| fine	130.993 \| fine	46.686 \| good	7.728 \| good	2.927 \| good	0.247 \| good
2026-08-12T21:00:00.000Z	84 \| moderate	27.499 \| fine	118.994 \| fine	47.848 \| good	9.498 \| good	2.34 \| good	0.154 \| good
2026-08-12T22:00:00.000Z	84 \| moderate	27.498 \| fine	118.994 \| fine	46.752 \| good	6.27 \| good	2.64 \| good	0.203 \| good
2026-08-12T23:00:00.000Z	94 \| moderate	31.598 \| fine	136.991 \| fine	49.203 \| good	3.307 \| good	2.586 \| good	0.183 \| good
2026-08-13T00:00:00.000Z	86 \| moderate	27.698 \| fine	120.993 \| fine	50.29 \| good	2.318 \| good	2.683 \| good	0.23 \| good
2026-08-13T01:00:00.000Z	69 \| moderate	19.399 \| fine	84.997 \| fine	51.493 \| good	2.544 \| good	3.406 \| good	0.186 \| good
2026-08-13T02:00:00.000Z	56 \| moderate	12 \| good	54.001 \| good	49.878 \| good	1.779 \| good	3.184 \| good	0.216 \| good
2026-08-13T03:00:00.000Z	44 \| good	4.301 \| good	19.006 \| good	46.879 \| good	2.045 \| good	3.299 \| good	0.216 \| good
2026-08-13T04:00:00.000Z	52 \| moderate	10 \| good	45.001 \| good	47.511 \| good	2.353 \| good	3.321 \| good	0.216 \| good
2026-08-13T05:00:00.000Z	60 \| moderate	14 \| fine	62.998 \| fine	47.305 \| good	1.581 \| good	3.168 \| good	0.253 \| good
2026-08-13T06:00:00.000Z	54 \| moderate	10.5 \| good	47 \| good	42.366 \| good	1.533 \| good	2.902 \| good	0.22 \| good
2026-08-13T07:00:00.000Z	54 \| moderate	10.5 \| good	47 \| good	40.551 \| good	1.894 \| good	2.963 \| good	0.183 \| good
2026-08-13T08:00:00.000Z	58 \| moderate	13.2 \| fine	58.998 \| fine	39.697 \| good	2.36 \| good	2.57 \| good	0.183 \| good
2026-08-13T09:00:00.000Z	58 \| moderate	13.2 \| fine	58.998 \| fine	39.697 \| good	2.36 \| good	2.57 \| good	0.183 \| good
2026-08-13T10:00:00.000Z	69 \| moderate	19.181 \| fine	84.958 \| fine	42.628 \| good	0.246 \| good	2.188 \| good	0.229 \| good
2026-08-13T11:00:00.000Z	60 \| moderate	14.15 \| fine	63 \| fine	40.199 \| good	0.238 \| good	2.361 \| good	0.229 \| good
2026-08-13T12:00:00.000Z	67 \| moderate	18.22 \| fine	80.958 \| fine	37.13 \| good	0.234 \| good	2.422 \| good	0.229 \| good
2026-08-13T13:00:00.000Z	62 \| moderate	14.958 \| fine	67 \| fine	35.217 \| good	0.221 \| good	2.54 \| good	0.229 \| good
2026-08-13T14:00:00.000Z	71 \| moderate	19.95 \| fine	87.083 \| fine	36.001 \| good	0.243 \| good	1.878 \| good	0.228 \| good
2026-08-13T15:00:00.000Z	69 \| moderate	19.38 \| fine	85 \| fine	35.965 \| good	0.282 \| good	1.373 \| good	0.226 \| good
2026-08-13T16:00:00.000Z	58 \| moderate	13.268 \| fine	59.083 \| fine	37.208 \| good	0.345 \| good	0.928 \| good	0.218 \| good
2026-08-13T17:00:00.000Z	67 \| moderate	18.462 \| fine	81 \| fine	36.945 \| good	0.386 \| good	0.715 \| good	0.211 \| good
2026-08-13T18:00:00.000Z	86 \| moderate	28.053 \| fine	121.398 \| fine	36.378 \| good	0.396 \| good	0.592 \| good	0.208 \| good
2026-08-13T19:00:00.000Z	64 \| moderate	16.124 \| fine	71.411 \| fine	37.123 \| good	0.39 \| good	0.52 \| good	0.206 \| good
2026-08-13T20:00:00.000Z	75 \| moderate	22.119 \| fine	97.144 \| fine	39.527 \| good	0.379 \| good	0.464 \| good	0.206 \| good
2026-08-13T21:00:00.000Z	71 \| moderate	19.594 \| fine	86.774 \| fine	43.472 \| good	0.366 \| good	0.423 \| good	0.206 \| good
2026-08-13T22:00:00.000Z	69 \| moderate	18.889 \| fine	83.109 \| fine	43.374 \| good	0.354 \| good	0.408 \| good	0.206 \| good
2026-08-13T23:00:00.000Z	67 \| moderate	18.01 \| fine	79.113 \| fine	45.046 \| good	0.342 \| good	0.436 \| good	0.206 \| good
2026-08-14T00:00:00.000Z	88 \| moderate	29.013 \| fine	126.396 \| fine	45.039 \| good	0.327 \| good	0.491 \| good	0.205 \| good
2026-08-14T01:00:00.000Z	84 \| moderate	26.604 \| fine	116.168 \| fine	45.524 \| good	0.29 \| good	0.677 \| good	0.203 \| good
2026-08-14T02:00:00.000Z	88 \| moderate	29.097 \| fine	126.33 \| fine	42.546 \| good	0.255 \| good	0.933 \| good	0.201 \| good
2026-08-14T03:00:00.000Z	82 \| moderate	25.883 \| fine	112.658 \| fine	43.614 \| good	0.216 \| good	1.201 \| good	0.196 \| good
2026-08-14T04:00:00.000Z	82 \| moderate	25.819 \| fine	112.683 \| fine	41.443 \| good	0.174 \| good	1.449 \| good	0.188 \| good
2026-08-14T05:00:00.000Z	71 \| moderate	20.196 \| fine	88.806 \| fine	40.686 \| good	0.133 \| good	1.414 \| good	0.176 \| good
2026-08-14T06:00:00.000Z	60 \| moderate	13.514 \| fine	60.852 \| fine	40.212 \| good	0.097 \| good	1.431 \| good	0.164 \| good
2026-08-14T07:00:00.000Z	62 \| moderate	15.359 \| fine	68.77 \| fine	38.905 \| good	0.076 \| good	1.415 \| good	0.156 \| good
2026-08-14T08:00:00.000Z	75 \| moderate	22.231 \| fine	97.121 \| fine	36.848 \| good	0.065 \| good	1.363 \| good	0.151 \| good
2026-08-14T09:00:00.000Z	66 \| moderate	17.161 \| fine	76.804 \| fine	34.624 \| good	0.059 \| good	1.269 \| good	0.147 \| good
2026-08-14T10:00:00.000Z	67 \| moderate	18.17 \| fine	80.958 \| fine	33.63 \| good	0.058 \| good	1.155 \| good	0.144 \| good
2026-08-14T11:00:00.000Z	67 \| moderate	17.699 \| fine	79 \| fine	29.033 \| good	0.055 \| good	1.062 \| good	0.142 \| good
2026-08-14T12:00:00.000Z	75 \| moderate	21.725 \| fine	95.037 \| fine	29.167 \| good	0.049 \| good	1.022 \| good	0.14 \| good
2026-08-14T13:00:00.000Z	67 \| moderate	18.087 \| fine	79.398 \| fine	27.916 \| good	0.042 \| good	0.992 \| good	0.139 \| good
2026-08-14T14:00:00.000Z	69 \| moderate	18.965 \| fine	83.392 \| fine	24.246 \| good	0.035 \| good	0.966 \| good	0.139 \| good
2026-08-14T15:00:00.000Z	71 \| moderate	19.631 \| fine	86.922 \| fine	21.695 \| good	0.03 \| good	0.931 \| good	0.139 \| good
2026-08-14T16:00:00.000Z	60 \| moderate	14.031 \| fine	62.958 \| fine	21.05 \| good	0.029 \| good	0.861 \| good	0.139 \| good
2026-08-14T17:00:00.000Z	71 \| moderate	19.58 \| fine	86.639 \| fine	19.881 \| good	0.033 \| good	0.768 \| good	0.139 \| good
2026-08-14T18:00:00.000Z	88 \| moderate	29.07 \| fine	126.597 \| fine	22.364 \| good	0.043 \| good	0.659 \| good	0.14 \| good
2026-08-14T19:00:00.000Z	77 \| moderate	23.075 \| fine	101.042 \| fine	22.741 \| good	0.057 \| good	0.552 \| good	0.142 \| good
2026-08-14T20:00:00.000Z	94 \| moderate	31.937 \| fine	138.508 \| fine	29.115 \| good	0.068 \| good	0.478 \| good	0.144 \| good
2026-08-14T21:00:00.000Z	88 \| moderate	28.993 \| fine	126.39 \| fine	39.106 \| good	0.075 \| good	0.451 \| good	0.148 \| good
2026-08-14T22:00:00.000Z	81 \| moderate	24.728 \| fine	107.12 \| fine	40.826 \| good	0.079 \| good	0.441 \| good	0.151 \| good
2026-08-14T23:00:00.000Z	69 \| moderate	18.982 \| fine	83.322 \| fine	41.841 \| good	0.084 \| good	0.433 \| good	0.154 \| good
2026-08-15T00:00:00.000Z	75 \| moderate	21.944 \| fine	96.711 \| fine	43.115 \| good	0.088 \| good	0.449 \| good	0.156 \| good
2026-08-15T01:00:00.000Z	73 \| moderate	21.282 \| fine	93.082 \| fine	43.704 \| good	0.09 \| good	0.507 \| good	0.157 \| good
2026-08-15T02:00:00.000Z	77 \| moderate	23.037 \| fine	100.679 \| fine	42.932 \| good	0.09 \| good	0.634 \| good	0.157 \| good
2026-08-15T03:00:00.000Z	82 \| moderate	26.277 \| fine	114.477 \| fine	41.681 \| good	0.088 \| good	0.959 \| good	0.157 \| good
2026-08-15T04:00:00.000Z	86 \| moderate	28.06 \| fine	122.297 \| fine	40.74 \| good	0.088 \| good	1.696 \| good	0.159 \| good
2026-08-15T05:00:00.000Z	84 \| moderate	26.756 \| fine	116.619 \| fine	40.294 \| good	0.093 \| good	2.446 \| good	0.16 \| good
2026-08-15T06:00:00.000Z	24 \| good	3.804 \| good	3.908 \| good	25.958 \| good	0.098 \| good	3.13 \| good	0.161 \| good
2026-08-15T07:00:00.000Z	71 \| moderate	19.732 \| fine	87.189 \| fine	37.986 \| good	0.102 \| good	3.614 \| good	0.161 \| good
2026-08-15T08:00:00.000Z	110 \| sensitive	39.258 \| moderate	173.152 \| moderate	35.382 \| good	0.105 \| good	3.703 \| good	0.16 \| good
2026-08-15T09:00:00.000Z	96 \| moderate	33.136 \| fine	143.146 \| fine	34.385 \| good	0.107 \| good	3.595 \| good	0.159 \| good

Great Falls

Empower business decisions with accurate air quality data

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

0.20ppm

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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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 07:00:00 on 2026-08-12.

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 2026-08-13.

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

The real-time air quality index in Great Falls, Montana is 58, currently categorized as Moderate.

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 13.2 μg/m³.

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

The current PM₁₀ levels in Great Falls, Montana are 58.998 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 0.183 ppm.

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

The current sulfur dioxide (SO₂) levels in Great Falls, Montana are 2.36 ppb.

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

The current ozone (O₃) levels at Great Falls, Montana is 39.697 ppm.

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

The current nitrogen dioxide (NO₂) levels at Great Falls, Montana is 2.57 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-08-11T10:00:00.000Z	102 \| sensitive	36.099 \| moderate	156.996 \| moderate	37.093 \| good	0.805 \| good	2.44 \| good	0.239 \| good
2026-08-11T11:00:00.000Z	113 \| sensitive	40.498 \| moderate	178.992 \| moderate	37.814 \| good	0.704 \| good	3.278 \| good	0.27 \| good
2026-08-11T12:00:00.000Z	120 \| sensitive	43.398 \| moderate	192.989 \| moderate	33.632 \| good	0.73 \| good	3.884 \| good	0.254 \| good
2026-08-11T13:00:00.000Z	120 \| sensitive	43.398 \| moderate	192.989 \| moderate	38.008 \| good	0.661 \| good	4.1 \| good	0.256 \| good
2026-08-11T14:00:00.000Z	116 \| sensitive	41.498 \| moderate	184.99 \| moderate	36.725 \| good	0.705 \| good	7.698 \| good	0.322 \| good
2026-08-11T15:00:00.000Z	105 \| sensitive	36.898 \| moderate	160.993 \| moderate	34.81 \| good	0.863 \| good	6.308 \| good	0.322 \| good
2026-08-11T16:00:00.000Z	96 \| moderate	33.199 \| fine	142.996 \| fine	35.054 \| good	0.899 \| good	6.556 \| good	0.322 \| good
2026-08-11T17:00:00.000Z	96 \| moderate	32.999 \| fine	142.996 \| fine	36.787 \| good	1.528 \| good	4.229 \| good	0.322 \| good
2026-08-11T18:00:00.000Z	119 \| sensitive	42.898 \| moderate	190.99 \| moderate	44.334 \| good	2.437 \| good	3.523 \| good	0.293 \| good
2026-08-11T19:00:00.000Z	137 \| sensitive	49.697 \| moderate	224.984 \| moderate	41.803 \| good	1.902 \| good	3.09 \| good	0.287 \| good
2026-08-11T20:00:00.000Z	124 \| sensitive	44.997 \| moderate	200.988 \| moderate	44.955 \| good	0.773 \| good	2.539 \| good	0.225 \| good
2026-08-11T21:00:00.000Z	115 \| sensitive	41.198 \| moderate	182.989 \| moderate	54.904 \| good	0.841 \| good	1.676 \| good	0.225 \| good
2026-08-11T22:00:00.000Z	107 \| sensitive	37.898 \| moderate	166.99 \| moderate	51.843 \| good	0.851 \| good	1.43 \| good	0.208 \| good
2026-08-11T23:00:00.000Z	99 \| moderate	34.799 \| fine	150.994 \| fine	57.343 \| fine	3.734 \| good	1.688 \| good	0.229 \| good
2026-08-12T00:00:00.000Z	90 \| moderate	29.6 \| fine	128.998 \| fine	56.674 \| fine	1.128 \| good	2.168 \| good	0.257 \| good
2026-08-12T01:00:00.000Z	81 \| moderate	25.2 \| fine	111.001 \| fine	59.146 \| fine	0.911 \| good	2.176 \| good	0.257 \| good
2026-08-12T02:00:00.000Z	75 \| moderate	21.901 \| fine	97.003 \| fine	60.326 \| fine	5.368 \| good	2.229 \| good	0.257 \| good
2026-08-12T03:00:00.000Z	110 \| sensitive	38.716 \| moderate	169.83 \| moderate	56.85 \| fine	0.257 \| good	1.391 \| good	0.182 \| good
2026-08-12T04:00:00.000Z	73 \| moderate	21.302 \| fine	93.009 \| fine	51.272 \| good	2.766 \| good	4.492 \| good	0.272 \| good
2026-08-12T05:00:00.000Z	81 \| moderate	24.502 \| fine	107.007 \| fine	45.926 \| good	2.277 \| good	3.496 \| good	0.266 \| good
2026-08-12T06:00:00.000Z	81 \| moderate	24.502 \| fine	107.007 \| fine	49.857 \| good	1.373 \| good	3.52 \| good	0.251 \| good
2026-08-12T07:00:00.000Z	84 \| moderate	26.501 \| fine	115.006 \| fine	36.855 \| good	1.679 \| good	3.948 \| good	0.203 \| good
2026-08-12T08:00:00.000Z	71 \| moderate	19.902 \| fine	87.009 \| fine	37.06 \| good	1.456 \| good	3.249 \| good	0.232 \| good
2026-08-12T09:00:00.000Z	77 \| moderate	22.601 \| fine	99.005 \| fine	37.996 \| good	1.666 \| good	5.009 \| good	0.232 \| good
2026-08-12T10:00:00.000Z	90 \| moderate	30.2 \| fine	131.001 \| fine	45.238 \| good	1.296 \| good	3.164 \| good	0.2 \| good
2026-08-12T11:00:00.000Z	90 \| moderate	30.2 \| fine	131 \| fine	47.741 \| good	1.131 \| good	1.866 \| good	0.2 \| good
2026-08-12T12:00:00.000Z	82 \| moderate	25.5 \| fine	111.001 \| fine	50.132 \| good	1.619 \| good	2.292 \| good	0.199 \| good
2026-08-12T13:00:00.000Z	82 \| moderate	25.5 \| fine	111.001 \| fine	47.767 \| good	1.631 \| good	3.291 \| good	0.232 \| good
2026-08-12T14:00:00.000Z	75 \| moderate	22 \| fine	97.001 \| fine	51.304 \| good	0.943 \| good	2.686 \| good	0.232 \| good
2026-08-12T15:00:00.000Z	71 \| moderate	20.4 \| fine	89.001 \| fine	50.101 \| good	1.098 \| good	3.585 \| good	0.232 \| good
2026-08-12T16:00:00.000Z	71 \| moderate	20.4 \| fine	89.001 \| fine	46.262 \| good	1.777 \| good	4.878 \| good	0.232 \| good
2026-08-12T17:00:00.000Z	73 \| moderate	20.6 \| fine	90.998 \| fine	42.583 \| good	2.684 \| good	3.734 \| good	0.265 \| good
2026-08-12T18:00:00.000Z	77 \| moderate	22.699 \| fine	98.997 \| fine	46.65 \| good	3.718 \| good	2.455 \| good	0.232 \| good
2026-08-12T19:00:00.000Z	102 \| sensitive	35.798 \| moderate	156.989 \| moderate	46.814 \| good	6.041 \| good	2.031 \| good	0.247 \| good
2026-08-12T20:00:00.000Z	90 \| moderate	30.398 \| fine	130.993 \| fine	46.686 \| good	7.728 \| good	2.927 \| good	0.247 \| good
2026-08-12T21:00:00.000Z	84 \| moderate	27.499 \| fine	118.994 \| fine	47.848 \| good	9.498 \| good	2.34 \| good	0.154 \| good
2026-08-12T22:00:00.000Z	84 \| moderate	27.498 \| fine	118.994 \| fine	46.752 \| good	6.27 \| good	2.64 \| good	0.203 \| good
2026-08-12T23:00:00.000Z	94 \| moderate	31.598 \| fine	136.991 \| fine	49.203 \| good	3.307 \| good	2.586 \| good	0.183 \| good
2026-08-13T00:00:00.000Z	86 \| moderate	27.698 \| fine	120.993 \| fine	50.29 \| good	2.318 \| good	2.683 \| good	0.23 \| good
2026-08-13T01:00:00.000Z	69 \| moderate	19.399 \| fine	84.997 \| fine	51.493 \| good	2.544 \| good	3.406 \| good	0.186 \| good
2026-08-13T02:00:00.000Z	56 \| moderate	12 \| good	54.001 \| good	49.878 \| good	1.779 \| good	3.184 \| good	0.216 \| good
2026-08-13T03:00:00.000Z	44 \| good	4.301 \| good	19.006 \| good	46.879 \| good	2.045 \| good	3.299 \| good	0.216 \| good
2026-08-13T04:00:00.000Z	52 \| moderate	10 \| good	45.001 \| good	47.511 \| good	2.353 \| good	3.321 \| good	0.216 \| good
2026-08-13T05:00:00.000Z	60 \| moderate	14 \| fine	62.998 \| fine	47.305 \| good	1.581 \| good	3.168 \| good	0.253 \| good
2026-08-13T06:00:00.000Z	54 \| moderate	10.5 \| good	47 \| good	42.366 \| good	1.533 \| good	2.902 \| good	0.22 \| good
2026-08-13T07:00:00.000Z	54 \| moderate	10.5 \| good	47 \| good	40.551 \| good	1.894 \| good	2.963 \| good	0.183 \| good
2026-08-13T08:00:00.000Z	58 \| moderate	13.2 \| fine	58.998 \| fine	39.697 \| good	2.36 \| good	2.57 \| good	0.183 \| good
2026-08-13T09:00:00.000Z	58 \| moderate	13.2 \| fine	58.998 \| fine	39.697 \| good	2.36 \| good	2.57 \| good	0.183 \| good
2026-08-13T10:00:00.000Z	69 \| moderate	19.181 \| fine	84.958 \| fine	42.628 \| good	0.246 \| good	2.188 \| good	0.229 \| good
2026-08-13T11:00:00.000Z	60 \| moderate	14.15 \| fine	63 \| fine	40.199 \| good	0.238 \| good	2.361 \| good	0.229 \| good
2026-08-13T12:00:00.000Z	67 \| moderate	18.22 \| fine	80.958 \| fine	37.13 \| good	0.234 \| good	2.422 \| good	0.229 \| good
2026-08-13T13:00:00.000Z	62 \| moderate	14.958 \| fine	67 \| fine	35.217 \| good	0.221 \| good	2.54 \| good	0.229 \| good
2026-08-13T14:00:00.000Z	71 \| moderate	19.95 \| fine	87.083 \| fine	36.001 \| good	0.243 \| good	1.878 \| good	0.228 \| good
2026-08-13T15:00:00.000Z	69 \| moderate	19.38 \| fine	85 \| fine	35.965 \| good	0.282 \| good	1.373 \| good	0.226 \| good
2026-08-13T16:00:00.000Z	58 \| moderate	13.268 \| fine	59.083 \| fine	37.208 \| good	0.345 \| good	0.928 \| good	0.218 \| good
2026-08-13T17:00:00.000Z	67 \| moderate	18.462 \| fine	81 \| fine	36.945 \| good	0.386 \| good	0.715 \| good	0.211 \| good
2026-08-13T18:00:00.000Z	86 \| moderate	28.053 \| fine	121.398 \| fine	36.378 \| good	0.396 \| good	0.592 \| good	0.208 \| good
2026-08-13T19:00:00.000Z	64 \| moderate	16.124 \| fine	71.411 \| fine	37.123 \| good	0.39 \| good	0.52 \| good	0.206 \| good
2026-08-13T20:00:00.000Z	75 \| moderate	22.119 \| fine	97.144 \| fine	39.527 \| good	0.379 \| good	0.464 \| good	0.206 \| good
2026-08-13T21:00:00.000Z	71 \| moderate	19.594 \| fine	86.774 \| fine	43.472 \| good	0.366 \| good	0.423 \| good	0.206 \| good
2026-08-13T22:00:00.000Z	69 \| moderate	18.889 \| fine	83.109 \| fine	43.374 \| good	0.354 \| good	0.408 \| good	0.206 \| good
2026-08-13T23:00:00.000Z	67 \| moderate	18.01 \| fine	79.113 \| fine	45.046 \| good	0.342 \| good	0.436 \| good	0.206 \| good
2026-08-14T00:00:00.000Z	88 \| moderate	29.013 \| fine	126.396 \| fine	45.039 \| good	0.327 \| good	0.491 \| good	0.205 \| good
2026-08-14T01:00:00.000Z	84 \| moderate	26.604 \| fine	116.168 \| fine	45.524 \| good	0.29 \| good	0.677 \| good	0.203 \| good
2026-08-14T02:00:00.000Z	88 \| moderate	29.097 \| fine	126.33 \| fine	42.546 \| good	0.255 \| good	0.933 \| good	0.201 \| good
2026-08-14T03:00:00.000Z	82 \| moderate	25.883 \| fine	112.658 \| fine	43.614 \| good	0.216 \| good	1.201 \| good	0.196 \| good
2026-08-14T04:00:00.000Z	82 \| moderate	25.819 \| fine	112.683 \| fine	41.443 \| good	0.174 \| good	1.449 \| good	0.188 \| good
2026-08-14T05:00:00.000Z	71 \| moderate	20.196 \| fine	88.806 \| fine	40.686 \| good	0.133 \| good	1.414 \| good	0.176 \| good
2026-08-14T06:00:00.000Z	60 \| moderate	13.514 \| fine	60.852 \| fine	40.212 \| good	0.097 \| good	1.431 \| good	0.164 \| good
2026-08-14T07:00:00.000Z	62 \| moderate	15.359 \| fine	68.77 \| fine	38.905 \| good	0.076 \| good	1.415 \| good	0.156 \| good
2026-08-14T08:00:00.000Z	75 \| moderate	22.231 \| fine	97.121 \| fine	36.848 \| good	0.065 \| good	1.363 \| good	0.151 \| good
2026-08-14T09:00:00.000Z	66 \| moderate	17.161 \| fine	76.804 \| fine	34.624 \| good	0.059 \| good	1.269 \| good	0.147 \| good
2026-08-14T10:00:00.000Z	67 \| moderate	18.17 \| fine	80.958 \| fine	33.63 \| good	0.058 \| good	1.155 \| good	0.144 \| good
2026-08-14T11:00:00.000Z	67 \| moderate	17.699 \| fine	79 \| fine	29.033 \| good	0.055 \| good	1.062 \| good	0.142 \| good
2026-08-14T12:00:00.000Z	75 \| moderate	21.725 \| fine	95.037 \| fine	29.167 \| good	0.049 \| good	1.022 \| good	0.14 \| good
2026-08-14T13:00:00.000Z	67 \| moderate	18.087 \| fine	79.398 \| fine	27.916 \| good	0.042 \| good	0.992 \| good	0.139 \| good
2026-08-14T14:00:00.000Z	69 \| moderate	18.965 \| fine	83.392 \| fine	24.246 \| good	0.035 \| good	0.966 \| good	0.139 \| good
2026-08-14T15:00:00.000Z	71 \| moderate	19.631 \| fine	86.922 \| fine	21.695 \| good	0.03 \| good	0.931 \| good	0.139 \| good
2026-08-14T16:00:00.000Z	60 \| moderate	14.031 \| fine	62.958 \| fine	21.05 \| good	0.029 \| good	0.861 \| good	0.139 \| good
2026-08-14T17:00:00.000Z	71 \| moderate	19.58 \| fine	86.639 \| fine	19.881 \| good	0.033 \| good	0.768 \| good	0.139 \| good
2026-08-14T18:00:00.000Z	88 \| moderate	29.07 \| fine	126.597 \| fine	22.364 \| good	0.043 \| good	0.659 \| good	0.14 \| good
2026-08-14T19:00:00.000Z	77 \| moderate	23.075 \| fine	101.042 \| fine	22.741 \| good	0.057 \| good	0.552 \| good	0.142 \| good
2026-08-14T20:00:00.000Z	94 \| moderate	31.937 \| fine	138.508 \| fine	29.115 \| good	0.068 \| good	0.478 \| good	0.144 \| good
2026-08-14T21:00:00.000Z	88 \| moderate	28.993 \| fine	126.39 \| fine	39.106 \| good	0.075 \| good	0.451 \| good	0.148 \| good
2026-08-14T22:00:00.000Z	81 \| moderate	24.728 \| fine	107.12 \| fine	40.826 \| good	0.079 \| good	0.441 \| good	0.151 \| good
2026-08-14T23:00:00.000Z	69 \| moderate	18.982 \| fine	83.322 \| fine	41.841 \| good	0.084 \| good	0.433 \| good	0.154 \| good
2026-08-15T00:00:00.000Z	75 \| moderate	21.944 \| fine	96.711 \| fine	43.115 \| good	0.088 \| good	0.449 \| good	0.156 \| good
2026-08-15T01:00:00.000Z	73 \| moderate	21.282 \| fine	93.082 \| fine	43.704 \| good	0.09 \| good	0.507 \| good	0.157 \| good
2026-08-15T02:00:00.000Z	77 \| moderate	23.037 \| fine	100.679 \| fine	42.932 \| good	0.09 \| good	0.634 \| good	0.157 \| good
2026-08-15T03:00:00.000Z	82 \| moderate	26.277 \| fine	114.477 \| fine	41.681 \| good	0.088 \| good	0.959 \| good	0.157 \| good
2026-08-15T04:00:00.000Z	86 \| moderate	28.06 \| fine	122.297 \| fine	40.74 \| good	0.088 \| good	1.696 \| good	0.159 \| good
2026-08-15T05:00:00.000Z	84 \| moderate	26.756 \| fine	116.619 \| fine	40.294 \| good	0.093 \| good	2.446 \| good	0.16 \| good
2026-08-15T06:00:00.000Z	24 \| good	3.804 \| good	3.908 \| good	25.958 \| good	0.098 \| good	3.13 \| good	0.161 \| good
2026-08-15T07:00:00.000Z	71 \| moderate	19.732 \| fine	87.189 \| fine	37.986 \| good	0.102 \| good	3.614 \| good	0.161 \| good
2026-08-15T08:00:00.000Z	110 \| sensitive	39.258 \| moderate	173.152 \| moderate	35.382 \| good	0.105 \| good	3.703 \| good	0.16 \| good
2026-08-15T09:00:00.000Z	96 \| moderate	33.136 \| fine	143.146 \| fine	34.385 \| good	0.107 \| good	3.595 \| good	0.159 \| 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?