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

The PM10 concentration in Helena, Montana is 14.177 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 0.671 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 42.423 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 2.414 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 3.214 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)

Good

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)

3.21 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

14.18 μg/m³

155

255

425

605+

Ozone (O₃)

42.42 ppb

201

201+

Sulfur Dioxide (SO₂)

0.67 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

2.41 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.37 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

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

Please contact us for custom requests

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
2026-01-21T06:00:00.000Z	58 \| moderate	13.159 \| fine	59.195 \| fine	33.935 \| good	0.8 \| good	2.237 \| good	0.277 \| good
2026-01-21T07:00:00.000Z	56 \| moderate	12.154 \| fine	53.824 \| good	35.961 \| good	0.79 \| good	1.599 \| good	0.299 \| good
2026-01-21T08:00:00.000Z	58 \| moderate	13.428 \| fine	60.618 \| fine	34.252 \| good	0.726 \| good	1.24 \| good	0.312 \| good
2026-01-21T09:00:00.000Z	58 \| moderate	12.516 \| fine	56.56 \| fine	36.373 \| good	0.842 \| good	1.146 \| good	0.276 \| good
2026-01-21T10:00:00.000Z	58 \| moderate	12.673 \| fine	55.705 \| fine	31.861 \| good	1.04 \| good	1.324 \| good	0.344 \| good
2026-01-21T11:00:00.000Z	52 \| moderate	10.467 \| good	44.051 \| good	37.39 \| good	0.839 \| good	1.262 \| good	0.328 \| good
2026-01-21T12:00:00.000Z	49 \| good	9.206 \| good	40.645 \| good	37.084 \| good	0.709 \| good	1.367 \| good	0.262 \| good
2026-01-21T13:00:00.000Z	49 \| good	9.282 \| good	41.237 \| good	47.337 \| good	0.763 \| good	1.973 \| good	0.282 \| good
2026-01-21T14:00:00.000Z	44 \| good	8.192 \| good	36.334 \| good	38.959 \| good	0.861 \| good	4.247 \| good	0.359 \| good
2026-01-21T15:00:00.000Z	52 \| moderate	9.831 \| good	43.632 \| good	37.152 \| good	1.165 \| good	1.529 \| good	0.372 \| good
2026-01-21T16:00:00.000Z	56 \| moderate	12.319 \| fine	56.312 \| fine	39.126 \| good	1.356 \| good	1.335 \| good	0.418 \| good
2026-01-21T17:00:00.000Z	58 \| moderate	12.892 \| fine	58.293 \| fine	36.392 \| good	1.409 \| good	3.057 \| good	0.481 \| good
2026-01-21T18:00:00.000Z	62 \| moderate	15.185 \| fine	68.371 \| fine	33.18 \| good	1.107 \| good	3.228 \| good	0.362 \| good
2026-01-21T19:00:00.000Z	71 \| moderate	19.659 \| fine	87.483 \| fine	34.683 \| good	1.114 \| good	2.148 \| good	0.287 \| good
2026-01-21T20:00:00.000Z	44 \| good	8.173 \| good	36.066 \| good	36.469 \| good	1.242 \| good	1.893 \| good	0.297 \| good
2026-01-21T21:00:00.000Z	32 \| good	3.443 \| good	15.626 \| good	35.256 \| good	1.783 \| good	1.922 \| good	0.283 \| good
2026-01-21T22:00:00.000Z	34 \| good	2.825 \| good	12.074 \| good	36.863 \| good	1.516 \| good	3.526 \| good	0.329 \| good
2026-01-21T23:00:00.000Z	35 \| good	3.147 \| good	13.364 \| good	38.184 \| good	1.529 \| good	2.68 \| good	0.283 \| good
2026-01-22T00:00:00.000Z	36 \| good	5.302 \| good	22.495 \| good	39.041 \| good	1.267 \| good	2.948 \| good	0.269 \| good
2026-01-22T01:00:00.000Z	38 \| good	6.916 \| good	30.516 \| good	38.094 \| good	0.684 \| good	3.987 \| good	0.322 \| good
2026-01-22T02:00:00.000Z	56 \| moderate	11.831 \| good	53.858 \| good	31.117 \| good	0.401 \| good	5.475 \| good	0.284 \| good
2026-01-22T03:00:00.000Z	64 \| moderate	15.823 \| fine	70.135 \| fine	36.988 \| good	0.58 \| good	5.822 \| good	0.329 \| good
2026-01-22T04:00:00.000Z	64 \| moderate	15.59 \| fine	69.253 \| fine	35.551 \| good	0.675 \| good	5.311 \| good	0.344 \| good
2026-01-22T05:00:00.000Z	58 \| moderate	12.636 \| fine	56.508 \| fine	37.713 \| good	0.856 \| good	4.2 \| good	0.316 \| good
2026-01-22T06:00:00.000Z	58 \| moderate	12.648 \| fine	56.564 \| fine	37.08 \| good	0.888 \| good	3.053 \| good	0.329 \| good
2026-01-22T07:00:00.000Z	52 \| moderate	9.952 \| good	44.116 \| good	36.864 \| good	1.064 \| good	3.033 \| good	0.329 \| good
2026-01-22T08:00:00.000Z	54 \| moderate	10.949 \| good	48.405 \| good	39.106 \| good	1.068 \| good	3.313 \| good	0.328 \| good
2026-01-22T09:00:00.000Z	49 \| good	8.739 \| good	38.398 \| good	39.122 \| good	1.145 \| good	3.809 \| good	0.357 \| good
2026-01-22T10:00:00.000Z	49 \| good	8.739 \| good	38.398 \| good	27.858 \| good	1.422 \| good	4.248 \| good	0.356 \| good
2026-01-22T11:00:00.000Z	35 \| good	6.067 \| good	27.249 \| good	38.116 \| good	1.477 \| good	5.322 \| good	0.355 \| good
2026-01-22T12:00:00.000Z	38 \| good	6.645 \| good	29.212 \| good	38.205 \| good	1.291 \| good	4.502 \| good	0.318 \| good
2026-01-22T13:00:00.000Z	38 \| good	6.645 \| good	29.212 \| good	40.874 \| good	1.192 \| good	4.73 \| good	0.322 \| good
2026-01-22T14:00:00.000Z	39 \| good	6.808 \| good	30.019 \| good	42.449 \| good	1.898 \| good	4.852 \| good	0.365 \| good
2026-01-22T15:00:00.000Z	38 \| good	6.842 \| good	30.134 \| good	38.195 \| good	1.75 \| good	3.799 \| good	0.421 \| good
2026-01-22T16:00:00.000Z	38 \| good	6.787 \| good	30.327 \| good	39.601 \| good	1.409 \| good	3.951 \| good	0.551 \| good
2026-01-22T17:00:00.000Z	38 \| good	6.82 \| good	30.546 \| good	33.115 \| good	1.415 \| good	4.577 \| good	0.597 \| good
2026-01-22T18:00:00.000Z	38 \| good	7.025 \| good	31.556 \| good	16.897 \| good	1.151 \| good	4.68 \| good	0.634 \| good
2026-01-22T19:00:00.000Z	38 \| good	6.985 \| good	31.538 \| good	23.511 \| good	0.981 \| good	4.4 \| good	0.322 \| good
2026-01-22T20:00:00.000Z	33 \| good	2.875 \| good	24.489 \| good	35.823 \| good	1.184 \| good	3.34 \| good	0.322 \| good
2026-01-22T21:00:00.000Z	34 \| good	2.011 \| good	8.427 \| good	37.288 \| good	1.972 \| good	1.96 \| good	0.269 \| good
2026-01-22T22:00:00.000Z	35 \| good	2.016 \| good	8.464 \| good	38.317 \| good	1.862 \| good	2.756 \| good	0.237 \| good
2026-01-22T23:00:00.000Z	38 \| good	3.726 \| good	16.544 \| good	40.595 \| good	1.908 \| good	3.615 \| good	0.265 \| good
2026-01-23T00:00:00.000Z	42 \| good	3.616 \| good	16.065 \| good	44.941 \| good	1.525 \| good	4.804 \| good	0.265 \| good
2026-01-23T01:00:00.000Z	41 \| good	3.753 \| good	17.036 \| good	43.553 \| good	0.84 \| good	4.918 \| good	0.265 \| good
2026-01-23T02:00:00.000Z	39 \| good	3.831 \| good	16.665 \| good	41.879 \| good	0.545 \| good	3.999 \| good	0.312 \| good
2026-01-23T03:00:00.000Z	40 \| good	3.191 \| good	14.417 \| good	43.008 \| good	0.655 \| good	2.809 \| good	0.342 \| good
2026-01-23T04:00:00.000Z	39 \| good	3.214 \| good	14.177 \| good	42.423 \| good	0.671 \| good	2.414 \| good	0.374 \| good
2026-01-23T05:00:00.000Z	39 \| good	3.214 \| good	14.177 \| good	42.423 \| good	0.671 \| good	2.414 \| good	0.374 \| good
2026-01-23T06:00:00.000Z	49 \| good	8.555 \| good	37.461 \| good	40.735 \| good	0.536 \| good	1.339 \| good	0.138 \| good
2026-01-23T07:00:00.000Z	44 \| good	8.31 \| good	36.541 \| good	40.066 \| good	0.484 \| good	1.252 \| good	0.136 \| good
2026-01-23T08:00:00.000Z	56 \| moderate	11.851 \| good	53.064 \| good	38.991 \| good	0.432 \| good	1.165 \| good	0.135 \| good
2026-01-23T09:00:00.000Z	52 \| moderate	9.979 \| good	44.458 \| good	36.804 \| good	0.38 \| good	1.078 \| good	0.133 \| good
2026-01-23T10:00:00.000Z	49 \| good	9.426 \| good	42.052 \| good	32.598 \| good	0.325 \| good	0.953 \| good	0.132 \| good
2026-01-23T11:00:00.000Z	49 \| good	8.801 \| good	38.612 \| good	37.163 \| good	0.271 \| good	0.828 \| good	0.131 \| good
2026-01-23T12:00:00.000Z	49 \| good	8.577 \| good	37.674 \| good	36.184 \| good	0.216 \| good	0.703 \| good	0.13 \| good
2026-01-23T13:00:00.000Z	56 \| moderate	12.172 \| fine	54.885 \| good	39.906 \| good	0.184 \| good	0.718 \| good	0.131 \| good
2026-01-23T14:00:00.000Z	52 \| moderate	9.769 \| good	43.53 \| good	42.561 \| good	0.153 \| good	0.734 \| good	0.131 \| good
2026-01-23T15:00:00.000Z	62 \| moderate	14.766 \| fine	65.943 \| fine	40.253 \| good	0.121 \| good	0.75 \| good	0.131 \| good
2026-01-23T16:00:00.000Z	54 \| moderate	10.686 \| good	47.204 \| good	44.066 \| good	0.13 \| good	0.632 \| good	0.131 \| good
2026-01-23T17:00:00.000Z	52 \| moderate	9.967 \| good	44.401 \| good	33.739 \| good	0.139 \| good	0.514 \| good	0.13 \| good
2026-01-23T18:00:00.000Z	62 \| moderate	14.773 \| fine	66.128 \| fine	26.465 \| good	0.148 \| good	0.397 \| good	0.13 \| good
2026-01-23T19:00:00.000Z	26 \| good	3.221 \| good	14.123 \| good	28.327 \| good	0.17 \| good	0.364 \| good	0.13 \| good
2026-01-23T20:00:00.000Z	39 \| good	3.173 \| good	13.425 \| good	41.968 \| good	0.193 \| good	0.331 \| good	0.13 \| good
2026-01-23T21:00:00.000Z	43 \| good	3.262 \| good	14.47 \| good	46.085 \| good	0.215 \| good	0.298 \| good	0.129 \| good
2026-01-23T22:00:00.000Z	45 \| good	3.829 \| good	16.899 \| good	49.141 \| good	0.236 \| good	0.515 \| good	0.131 \| good
2026-01-23T23:00:00.000Z	46 \| good	5.085 \| good	21.828 \| good	49.564 \| good	0.257 \| good	0.732 \| good	0.133 \| good
2026-01-24T00:00:00.000Z	49 \| good	8.565 \| good	37.484 \| good	45.567 \| good	0.277 \| good	0.95 \| good	0.135 \| good
2026-01-24T01:00:00.000Z	54 \| moderate	10.85 \| good	47.802 \| good	41.415 \| good	0.308 \| good	2.566 \| good	0.153 \| good
2026-01-24T02:00:00.000Z	58 \| moderate	13.275 \| fine	59.943 \| fine	36.36 \| good	0.339 \| good	4.182 \| good	0.171 \| good
2026-01-24T03:00:00.000Z	54 \| moderate	11.055 \| good	48.794 \| good	36.382 \| good	0.37 \| good	5.798 \| good	0.189 \| good
2026-01-24T04:00:00.000Z	49 \| good	9.481 \| good	42.329 \| good	33.601 \| good	0.32 \| good	5.992 \| good	0.192 \| good
2026-01-24T05:00:00.000Z	54 \| moderate	10.53 \| good	46.66 \| good	32.414 \| good	0.269 \| good	6.187 \| good	0.195 \| good
2026-01-24T06:00:00.000Z	52 \| moderate	9.593 \| good	42.653 \| good	34.046 \| good	0.219 \| good	6.381 \| good	0.198 \| good
2026-01-24T07:00:00.000Z	52 \| moderate	9.608 \| good	42.653 \| good	35.667 \| good	0.185 \| good	5.791 \| good	0.191 \| good
2026-01-24T08:00:00.000Z	54 \| moderate	10.703 \| good	47.405 \| good	35.268 \| good	0.152 \| good	5.2 \| good	0.185 \| good
2026-01-24T09:00:00.000Z	38 \| good	6.921 \| good	30.678 \| good	37.066 \| good	0.118 \| good	4.61 \| good	0.178 \| good
2026-01-24T10:00:00.000Z	33 \| good	4.353 \| good	19.042 \| good	35.63 \| good	0.115 \| good	4.279 \| good	0.175 \| good
2026-01-24T11:00:00.000Z	36 \| good	4.001 \| good	17.697 \| good	38.799 \| good	0.113 \| good	3.948 \| good	0.171 \| good
2026-01-24T12:00:00.000Z	34 \| good	4.897 \| good	21.11 \| good	36.658 \| good	0.11 \| good	3.618 \| good	0.167 \| good
2026-01-24T13:00:00.000Z	33 \| good	6.262 \| good	27.869 \| good	35.723 \| good	0.116 \| good	3.838 \| good	0.17 \| good
2026-01-24T14:00:00.000Z	37 \| good	6.204 \| good	27.503 \| good	39.988 \| good	0.121 \| good	4.059 \| good	0.173 \| good
2026-01-24T15:00:00.000Z	58 \| moderate	12.652 \| fine	56.457 \| fine	34.695 \| good	0.127 \| good	4.28 \| good	0.176 \| good
2026-01-24T16:00:00.000Z	52 \| moderate	9.919 \| good	44.234 \| good	33.261 \| good	0.167 \| good	3.513 \| good	0.171 \| good
2026-01-24T17:00:00.000Z	38 \| good	7.127 \| good	31.596 \| good	27.516 \| good	0.208 \| good	2.746 \| good	0.166 \| good
2026-01-24T18:00:00.000Z	56 \| moderate	11.989 \| good	53.705 \| good	19.177 \| good	0.248 \| good	1.979 \| good	0.161 \| good
2026-01-24T19:00:00.000Z	26 \| good	2.914 \| good	12.04 \| good	27.652 \| good	0.272 \| good	1.57 \| good	0.154 \| good
2026-01-24T20:00:00.000Z	40 \| good	1.599 \| good	6.603 \| good	42.801 \| good	0.295 \| good	1.161 \| good	0.146 \| good
2026-01-24T21:00:00.000Z	38 \| good	0.584 \| good	2.259 \| good	40.691 \| good	0.319 \| good	0.752 \| good	0.139 \| good
2026-01-24T22:00:00.000Z	37 \| good	2.953 \| good	12.035 \| good	40.397 \| good	0.305 \| good	1.005 \| good	0.141 \| good
2026-01-24T23:00:00.000Z	39 \| good	4.457 \| good	19.504 \| good	42.276 \| good	0.292 \| good	1.258 \| good	0.144 \| good
2026-01-25T00:00:00.000Z	41 \| good	2.102 \| good	2.559 \| good	44.37 \| good	0.278 \| good	1.498 \| good	0.146 \| good
2026-01-25T01:00:00.000Z	35 \| good	4.521 \| good	19.696 \| good	37.655 \| good	0.253 \| good	2.195 \| good	0.154 \| good
2026-01-25T02:00:00.000Z	32 \| good	4.88 \| good	20.828 \| good	35.12 \| good	0.228 \| good	2.88 \| good	0.162 \| good
2026-01-25T03:00:00.000Z	33 \| good	6.248 \| good	27.683 \| good	36.433 \| good	0.203 \| good	3.564 \| good	0.17 \| good
2026-01-25T04:00:00.000Z	36 \| good	5.072 \| good	21.899 \| good	38.537 \| good	0.182 \| good	3.427 \| good	0.168 \| good
2026-01-25T05:00:00.000Z	44 \| good	7.813 \| good	34.012 \| good	40.449 \| good	0.161 \| good	3.29 \| good	0.166 \| good

Helena

Get reliable air quality data to drive your business

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

0.39ppm

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

Air quality levels in US

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

View Polluted Cities

Check live rankings of places in the USA with the cleanest air.

View Clean Cities

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 06:00:00 on 2026-01-22.

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 08:00:00 on 2026-01-22.

What is the AQI in Helena, Montana right now?

As of now, the AQI in Helena, Montana is 39, indicating Good conditions.

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

Helena, Montana air has the highest levels of O3.

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 3.214 μg/m³.

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

The PM₁₀ concentration in Helena, Montana is 14.177 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 0.374 ppm.

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

Currently, Helena, Montana has a sulfur dioxide (SO₂) concentration of 0.671 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 42.423 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 2.414 ppb.

Certified

APIs

Refund Policy

Historical Climate Data

Terms & Conditions