What is the PM10 level in Helena, Montana at the moment?

The PM10 concentration in Helena, Montana is 47.997 μg/m3 at the moment.

What is the sulfur dioxide (SO2) level in Helena, Montana at the moment?

Currently, Helena, Montana has a sulfur dioxide (SO2) concentration of 0.651 ppb.

What is the ozone (O3) level in Helena, Montana at the moment?

The current ozone (O3) level in Helena, Montana at the moment is 41.538 ppm.

What is the nitrogen dioxide (NO2) level in Helena, Montana at the moment?

Nitrogen dioxide (NO2) level in Helena, Montana at the moment is 2.125 ppb.

Live air quality index in Helena, Montana today

Q: What is the PM2.5 level in Helena, Montana at the moment?

PM2.5 levels in Helena, Montana are currently 10.854 μg/m3.

Stay updated with real-time air quality in Helena, 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

Helena, Montana

Last updated: ... (Local time)

Major air pollutants in Helena, Montana

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

10.85 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

48.00 μg/m³

155

255

425

605+

Ozone (O₃)

41.54 ppb

201

201+

Sulfur Dioxide (SO₂)

0.65 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

2.13 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.19 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Looks like we don't have this data available right now

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Helena, Montana

Scroll To Air Quality Map

Track live Helena, Montana air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-07-21T22:00:00.000Z	62 \| moderate	11.193 \| good	77.33 \| fine	39.236 \| good	1.496 \| good	1.543 \| good	0.204 \| good
2026-07-21T23:00:00.000Z	67 \| moderate	18.137 \| fine	80.917 \| fine	40.342 \| good	3.123 \| good	1.946 \| good	0.204 \| good
2026-07-22T00:00:00.000Z	58 \| moderate	13.191 \| fine	59.234 \| fine	45.63 \| good	2.472 \| good	2.529 \| good	0.167 \| good
2026-07-22T01:00:00.000Z	56 \| moderate	11.553 \| good	50.632 \| good	45.739 \| good	1.88 \| good	2.255 \| good	0.167 \| good
2026-07-22T02:00:00.000Z	56 \| moderate	12.348 \| fine	54.706 \| good	41.554 \| good	3.042 \| good	2.22 \| good	0.181 \| good
2026-07-22T03:00:00.000Z	56 \| moderate	12.348 \| fine	54.706 \| good	40.938 \| good	3.387 \| good	2.606 \| good	0.167 \| good
2026-07-22T04:00:00.000Z	56 \| moderate	11.617 \| good	52.348 \| good	39.698 \| good	5.33 \| good	2.602 \| good	0.204 \| good
2026-07-22T05:00:00.000Z	56 \| moderate	11.97 \| good	53.195 \| good	40.636 \| good	3.538 \| good	3.824 \| good	0.221 \| good
2026-07-22T06:00:00.000Z	54 \| moderate	10.853 \| good	48.115 \| good	40.229 \| good	1.206 \| good	3.761 \| good	0.221 \| good
2026-07-22T07:00:00.000Z	54 \| moderate	10.853 \| good	48.115 \| good	37.701 \| good	0.951 \| good	3.743 \| good	0.221 \| good
2026-07-22T08:00:00.000Z	54 \| moderate	10.769 \| good	47.245 \| good	39.076 \| good	0.793 \| good	2.235 \| good	0.221 \| good
2026-07-22T09:00:00.000Z	54 \| moderate	11.301 \| good	50.352 \| good	38.089 \| good	1.376 \| good	2.038 \| good	0.221 \| good
2026-07-22T10:00:00.000Z	62 \| moderate	14.589 \| fine	64.432 \| fine	34.177 \| good	2.892 \| good	2.041 \| good	0.221 \| good
2026-07-22T11:00:00.000Z	54 \| moderate	11.303 \| good	49.474 \| good	32.048 \| good	8.16 \| good	1.852 \| good	0.221 \| good
2026-07-22T12:00:00.000Z	52 \| moderate	9.654 \| good	43.113 \| good	30.39 \| good	6.152 \| good	2.252 \| good	0.221 \| good
2026-07-22T13:00:00.000Z	52 \| moderate	9.654 \| good	43.113 \| good	29.408 \| good	5.323 \| good	2.42 \| good	0.221 \| good
2026-07-22T14:00:00.000Z	52 \| moderate	9.549 \| good	42.585 \| good	29.143 \| good	2.324 \| good	3.787 \| good	0.221 \| good
2026-07-22T15:00:00.000Z	49 \| good	8.849 \| good	40.025 \| good	28.474 \| good	1.531 \| good	3.242 \| good	0.251 \| good
2026-07-22T16:00:00.000Z	49 \| good	8.858 \| good	40.07 \| good	23.068 \| good	1.19 \| good	2.711 \| good	0.251 \| good
2026-07-22T17:00:00.000Z	44 \| good	7.568 \| good	33.526 \| good	31.901 \| good	1.687 \| good	2.679 \| good	0.239 \| good
2026-07-22T18:00:00.000Z	54 \| moderate	10.695 \| good	46.92 \| good	30.743 \| good	2.114 \| good	2.149 \| good	0.255 \| good
2026-07-22T19:00:00.000Z	54 \| moderate	10.845 \| good	48.089 \| good	34.757 \| good	1.744 \| good	3.001 \| good	0.239 \| good
2026-07-22T20:00:00.000Z	54 \| moderate	10.817 \| good	47.979 \| good	38.236 \| good	2.57 \| good	2.591 \| good	0.204 \| good
2026-07-22T21:00:00.000Z	60 \| moderate	13.583 \| fine	60.709 \| fine	42.025 \| good	1.14 \| good	2.144 \| good	0.204 \| good
2026-07-22T22:00:00.000Z	62 \| moderate	14.679 \| fine	66.19 \| fine	41.184 \| good	0.787 \| good	1.932 \| good	0.241 \| good
2026-07-22T23:00:00.000Z	62 \| moderate	14.701 \| fine	66.435 \| fine	46.045 \| good	0.99 \| good	1.792 \| good	0.241 \| good
2026-07-23T00:00:00.000Z	58 \| moderate	13.134 \| fine	59.436 \| fine	46.114 \| good	0.778 \| good	2.044 \| good	0.204 \| good
2026-07-23T01:00:00.000Z	56 \| moderate	12.427 \| fine	55.598 \| fine	47.245 \| good	0.899 \| good	2.892 \| good	0.241 \| good
2026-07-23T02:00:00.000Z	60 \| moderate	13.548 \| fine	59.982 \| fine	42.083 \| good	1.671 \| good	1.914 \| good	0.203 \| good
2026-07-23T03:00:00.000Z	52 \| moderate	9.673 \| good	42.812 \| good	34.501 \| good	0.116 \| good	1.696 \| good	0.155 \| good
2026-07-23T04:00:00.000Z	60 \| moderate	14.275 \| fine	63.736 \| fine	42.501 \| good	3.104 \| good	2.963 \| good	0.241 \| good
2026-07-23T05:00:00.000Z	60 \| moderate	14.275 \| fine	63.736 \| fine	41.595 \| good	2.144 \| good	4.463 \| good	0.25 \| good
2026-07-23T06:00:00.000Z	54 \| moderate	11.359 \| good	50.123 \| good	34.031 \| good	3.385 \| good	4.898 \| good	0.253 \| good
2026-07-23T07:00:00.000Z	54 \| moderate	11.359 \| good	50.123 \| good	30.452 \| good	4.502 \| good	4.451 \| good	0.256 \| good
2026-07-23T08:00:00.000Z	49 \| good	9.44 \| good	41.951 \| good	23.321 \| good	2.071 \| good	2.083 \| good	0.255 \| good
2026-07-23T09:00:00.000Z	49 \| good	8.815 \| good	38.297 \| good	19.216 \| good	3.006 \| good	1.785 \| good	0.239 \| good
2026-07-23T10:00:00.000Z	52 \| moderate	9.794 \| good	43.445 \| good	17.49 \| good	1.034 \| good	2.758 \| good	0.254 \| good
2026-07-23T11:00:00.000Z	52 \| moderate	9.784 \| good	43.427 \| good	19.671 \| good	0.654 \| good	7.361 \| good	0.254 \| good
2026-07-23T12:00:00.000Z	49 \| good	8.691 \| good	37.908 \| good	17.785 \| good	1.162 \| good	6.631 \| good	0.254 \| good
2026-07-23T13:00:00.000Z	49 \| good	8.691 \| good	37.908 \| good	22.83 \| good	2.705 \| good	6.631 \| good	0.254 \| good
2026-07-23T14:00:00.000Z	60 \| moderate	13.678 \| fine	61.919 \| fine	21.703 \| good	0.638 \| good	3.543 \| good	0.253 \| good
2026-07-23T15:00:00.000Z	54 \| moderate	11.432 \| good	51.564 \| good	21.383 \| good	1.03 \| good	2.898 \| good	0.236 \| good
2026-07-23T16:00:00.000Z	54 \| moderate	11.096 \| good	48.532 \| good	25.735 \| good	0.776 \| good	2.602 \| good	0.236 \| good
2026-07-23T17:00:00.000Z	54 \| moderate	11.088 \| good	48.433 \| good	27.821 \| good	0.583 \| good	2.555 \| good	0.236 \| good
2026-07-23T18:00:00.000Z	52 \| moderate	9.918 \| good	44.187 \| good	37.714 \| good	0.721 \| good	2.391 \| good	0.172 \| good
2026-07-23T19:00:00.000Z	52 \| moderate	10.284 \| good	44.969 \| good	39.828 \| good	0.716 \| good	1.958 \| good	0.187 \| good
2026-07-23T20:00:00.000Z	54 \| moderate	10.854 \| good	47.997 \| good	41.538 \| good	0.651 \| good	2.125 \| good	0.187 \| good
2026-07-23T21:00:00.000Z	54 \| moderate	10.854 \| good	47.997 \| good	44.895 \| good	0.6 \| good	1.626 \| good	0.233 \| good
2026-07-23T21:00:00.000Z	54 \| moderate	10.854 \| good	47.997 \| good	41.538 \| good	0.651 \| good	2.125 \| good	0.187 \| good
2026-07-23T22:00:00.000Z	52 \| moderate	9.922 \| good	44.087 \| good	48.469 \| good	0.1 \| good	0.218 \| good	0.145 \| good
2026-07-23T23:00:00.000Z	49 \| good	9.369 \| good	41.922 \| good	46.366 \| good	0.101 \| good	0.231 \| good	0.145 \| good
2026-07-24T00:00:00.000Z	52 \| moderate	9.559 \| good	42.868 \| good	42.249 \| good	0.104 \| good	0.259 \| good	0.146 \| good
2026-07-24T01:00:00.000Z	56 \| moderate	12.405 \| fine	55.518 \| fine	39.045 \| good	0.117 \| good	0.374 \| good	0.149 \| good
2026-07-24T02:00:00.000Z	54 \| moderate	10.956 \| good	48.292 \| good	41.22 \| good	0.131 \| good	0.898 \| good	0.155 \| good
2026-07-24T03:00:00.000Z	60 \| moderate	13.723 \| fine	61.26 \| fine	34.058 \| good	0.144 \| good	1.928 \| good	0.162 \| good
2026-07-24T04:00:00.000Z	54 \| moderate	11.04 \| good	48.975 \| good	37.205 \| good	0.155 \| good	2.814 \| good	0.168 \| good
2026-07-24T05:00:00.000Z	49 \| good	9.036 \| good	40.014 \| good	35.679 \| good	0.165 \| good	3.494 \| good	0.172 \| good
2026-07-24T06:00:00.000Z	44 \| good	8.073 \| good	35.391 \| good	30.911 \| good	0.173 \| good	4.255 \| good	0.177 \| good
2026-07-24T07:00:00.000Z	44 \| good	8.179 \| good	35.9 \| good	32.952 \| good	0.176 \| good	4.942 \| good	0.18 \| good
2026-07-24T08:00:00.000Z	54 \| moderate	10.939 \| good	48.568 \| good	30.001 \| good	0.175 \| good	5.434 \| good	0.183 \| good
2026-07-24T09:00:00.000Z	33 \| good	6.275 \| good	27.946 \| good	27.518 \| good	0.176 \| good	5.808 \| good	0.184 \| good
2026-07-24T10:00:00.000Z	44 \| good	8.133 \| good	35.732 \| good	20.481 \| good	0.179 \| good	6.143 \| good	0.186 \| good
2026-07-24T11:00:00.000Z	38 \| good	6.732 \| good	29.874 \| good	29.18 \| good	0.182 \| good	6.453 \| good	0.187 \| good
2026-07-24T12:00:00.000Z	27 \| good	4.972 \| good	21.27 \| good	20.294 \| good	0.183 \| good	6.588 \| good	0.189 \| good
2026-07-24T13:00:00.000Z	52 \| moderate	9.758 \| good	43.175 \| good	22.866 \| good	0.173 \| good	5.732 \| good	0.191 \| good
2026-07-24T14:00:00.000Z	38 \| good	6.931 \| good	30.653 \| good	30.26 \| good	0.172 \| good	3.851 \| good	0.192 \| good
2026-07-24T15:00:00.000Z	44 \| good	7.53 \| good	33.178 \| good	33.45 \| good	0.219 \| good	1.891 \| good	0.191 \| good
2026-07-24T16:00:00.000Z	49 \| good	8.573 \| good	37.722 \| good	41.501 \| good	0.26 \| good	0.695 \| good	0.196 \| good
2026-07-24T17:00:00.000Z	44 \| good	5.773 \| good	24.917 \| good	46.514 \| good	0.228 \| good	0.372 \| good	0.187 \| good
2026-07-24T18:00:00.000Z	49 \| good	8.251 \| good	36.216 \| good	53.063 \| good	0.188 \| good	0.261 \| good	0.165 \| good
2026-07-24T19:00:00.000Z	49 \| good	9.098 \| good	40.497 \| good	51.408 \| good	0.171 \| good	0.2 \| good	0.141 \| good
2026-07-24T20:00:00.000Z	54 \| moderate	11.211 \| good	49.619 \| good	50.091 \| good	0.174 \| good	0.173 \| good	0.127 \| good
2026-07-24T21:00:00.000Z	52 \| moderate	9.75 \| good	43.126 \| good	48.045 \| good	0.179 \| good	0.162 \| good	0.119 \| good
2026-07-24T22:00:00.000Z	44 \| good	7.424 \| good	32.655 \| good	47.729 \| good	0.181 \| good	0.164 \| good	0.114 \| good
2026-07-24T23:00:00.000Z	45 \| good	3.733 \| good	16.155 \| good	48.792 \| good	0.182 \| good	0.178 \| good	0.113 \| good
2026-07-25T00:00:00.000Z	40 \| good	4.925 \| good	21.204 \| good	42.866 \| good	0.181 \| good	0.21 \| good	0.112 \| good
2026-07-25T01:00:00.000Z	41 \| good	5.91 \| good	26.108 \| good	43.569 \| good	0.173 \| good	0.419 \| good	0.112 \| good
2026-07-25T02:00:00.000Z	41 \| good	7.22 \| good	31.699 \| good	44.424 \| good	0.163 \| good	1.169 \| good	0.117 \| good
2026-07-25T03:00:00.000Z	38 \| good	6.673 \| good	29.515 \| good	35.978 \| good	0.163 \| good	2.071 \| good	0.121 \| good
2026-07-25T04:00:00.000Z	31 \| good	5.466 \| good	23.558 \| good	33.112 \| good	0.172 \| good	3.124 \| good	0.126 \| good
2026-07-25T05:00:00.000Z	33 \| good	6.214 \| good	27.567 \| good	33.181 \| good	0.182 \| good	3.77 \| good	0.129 \| good
2026-07-25T06:00:00.000Z	33 \| good	6.299 \| good	28.167 \| good	27.113 \| good	0.189 \| good	4.228 \| good	0.132 \| good
2026-07-25T07:00:00.000Z	33 \| good	5.77 \| good	25.2 \| good	29.486 \| good	0.193 \| good	4.603 \| good	0.133 \| good
2026-07-25T08:00:00.000Z	33 \| good	6.495 \| good	29.157 \| good	28.11 \| good	0.191 \| good	4.924 \| good	0.132 \| good
2026-07-25T09:00:00.000Z	23 \| good	2.929 \| good	12.288 \| good	25.229 \| good	0.191 \| good	5.08 \| good	0.13 \| good
2026-07-25T10:00:00.000Z	33 \| good	6.085 \| good	27.023 \| good	18.547 \| good	0.195 \| good	5.122 \| good	0.128 \| good
2026-07-25T11:00:00.000Z	23 \| good	3.803 \| good	16.86 \| good	24.792 \| good	0.202 \| good	4.974 \| good	0.125 \| good
2026-07-25T12:00:00.000Z	20 \| good	1.04 \| good	4.236 \| good	21.864 \| good	0.207 \| good	4.71 \| good	0.122 \| good
2026-07-25T13:00:00.000Z	27 \| good	5.028 \| good	21.552 \| good	21.788 \| good	0.197 \| good	3.997 \| good	0.119 \| good
2026-07-25T14:00:00.000Z	27 \| good	4.799 \| good	20.756 \| good	28.435 \| good	0.184 \| good	2.747 \| good	0.116 \| good
2026-07-25T15:00:00.000Z	31 \| good	3.536 \| good	15.714 \| good	34.18 \| good	0.186 \| good	1.624 \| good	0.112 \| good
2026-07-25T16:00:00.000Z	34 \| good	6.009 \| good	26.764 \| good	37.451 \| good	0.17 \| good	0.841 \| good	0.105 \| good
2026-07-25T17:00:00.000Z	44 \| good	3.242 \| good	14.133 \| good	46.573 \| good	0.133 \| good	0.506 \| good	0.1 \| good
2026-07-25T18:00:00.000Z	48 \| good	4.377 \| good	19 \| good	52.378 \| good	0.104 \| good	0.338 \| good	0.097 \| good
2026-07-25T19:00:00.000Z	47 \| good	6.189 \| good	27.459 \| good	50.899 \| good	0.092 \| good	0.231 \| good	0.093 \| good
2026-07-25T20:00:00.000Z	52 \| moderate	9.896 \| good	44.012 \| good	48.206 \| good	0.087 \| good	0.188 \| good	0.09 \| good
2026-07-25T21:00:00.000Z	58 \| moderate	13.012 \| fine	58.96 \| fine	49.349 \| good	0.084 \| good	0.195 \| good	0.088 \| good

Helena

Get reliable air quality data to drive your business

Helena, Montana air quality map: Stay updated on AQI near you

0.46ppm

How accurate is Montana, USA air quality data?

Air quality and pollutant data for Montana, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.

Source: Ambee Data Sources

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Frequently asked questions

How often is air quality information updated for Helena, Montana?

The air quality information for Helena, Montana is updated every hour for accuracy.

What time in the last 24 hours was the air quality in Helena, Montana at its worst?

In the past 24 hours, the air quality in Helena, Montana was at its worst at 11:00:00 on 2026-07-22.

When did Helena, Montana experience the best air quality in the last 24 hours?

In the last 24 hours, the best air quality in Helena, Montana was observed at 01:00:00 on 2026-07-23.

What is the AQI in Helena, Montana right now?

As of now, the AQI in Helena, Montana is 54, indicating Moderate conditions.

What is the most common type of pollution in Helena, Montana?

Helena, Montana air has the highest levels of PM2.5.

What should I do in case of poor air quality in Helena, Montana?

Poor air quality in Helena, Montana means it's advisable to stay indoors and wear a mask for your protection.

What is the PM_2.5 level in Helena, Montana at the moment?

PM_2.5 levels in Helena, Montana are currently 10.854 μg/m³.

What is the PM₁₀ level in Helena, Montana at the moment?

The PM₁₀ concentration in Helena, Montana is 47.997 μg/m³ at the moment.

What is the carbon monoxide (CO) level in Helena, Montana at the moment?

The current carbon monoxide (CO) concentration in Helena, Montana is 0.187 ppm.

What is the sulfur dioxide (SO₂) level in Helena, Montana at the moment?

Currently, Helena, Montana has a sulfur dioxide (SO₂) concentration of 0.651 ppb.

What is the ozone (O₃) level in Helena, Montana at the moment?

The current ozone (O₃) level in Helena, Montana at the moment is 41.538 ppm.

What is the nitrogen dioxide (NO₂) level in Helena, Montana at the moment?

Nitrogen dioxide (NO₂) level in Helena, Montana at the moment is 2.125 ppb.

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