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

The PM10 concentration in Helena, Montana is 2.947 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 0.55 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 21.938 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 4.985 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 0.693 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)

0.69 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

2.95 μg/m³

155

255

425

605+

Ozone (O₃)

21.94 ppb

201

201+

Sulfur Dioxide (SO₂)

0.55 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

4.99 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.24 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
2025-10-20T13:00:00.000Z	33 \| good	2.097 \| good	9.343 \| good	35.545 \| good	0.755 \| good	3.652 \| good	0.189 \| good
2025-10-20T14:00:00.000Z	32 \| good	2.132 \| good	8.78 \| good	34.828 \| good	1.394 \| good	6.262 \| good	0.213 \| good
2025-10-20T15:00:00.000Z	32 \| good	1.646 \| good	9.52 \| good	34.835 \| good	2.431 \| good	4.156 \| good	0.321 \| good
2025-10-20T16:00:00.000Z	24 \| good	4.404 \| good	12.732 \| good	25.806 \| good	4.609 \| good	7.191 \| good	0.399 \| good
2025-10-20T17:00:00.000Z	22 \| good	4.394 \| good	22.682 \| good	23.755 \| good	5.427 \| good	2.728 \| good	0.309 \| good
2025-10-20T18:00:00.000Z	31 \| good	2.188 \| good	12.894 \| good	34.286 \| good	3.606 \| good	1.417 \| good	0.221 \| good
2025-10-20T19:00:00.000Z	31 \| good	2.014 \| good	7.171 \| good	34.188 \| good	3.11 \| good	0.781 \| good	0.184 \| good
2025-10-20T20:00:00.000Z	31 \| good	4.935 \| good	21.711 \| good	34.058 \| good	2.36 \| good	0.71 \| good	0.204 \| good
2025-10-20T21:00:00.000Z	33 \| good	5.753 \| good	25.859 \| good	33.752 \| good	1.208 \| good	0.935 \| good	0.203 \| good
2025-10-20T22:00:00.000Z	31 \| good	1.571 \| good	6.832 \| good	34.19 \| good	0.651 \| good	0.65 \| good	0.188 \| good
2025-10-20T23:00:00.000Z	31 \| good	2.452 \| good	10.708 \| good	33.634 \| good	0.827 \| good	0.662 \| good	0.188 \| good
2025-10-21T00:00:00.000Z	31 \| good	1.807 \| good	7.94 \| good	32.837 \| good	0.799 \| good	0.78 \| good	0.188 \| good
2025-10-21T01:00:00.000Z	29 \| good	1.805 \| good	7.938 \| good	30.938 \| good	1.342 \| good	1.007 \| good	0.188 \| good
2025-10-21T02:00:00.000Z	31 \| good	1.001 \| good	4.258 \| good	32.92 \| good	1.354 \| good	1.146 \| good	0.203 \| good
2025-10-21T03:00:00.000Z	25 \| good	0.617 \| good	2.204 \| good	27.192 \| good	0.31 \| good	1.836 \| good	0.12 \| good
2025-10-21T04:00:00.000Z	31 \| good	3.333 \| good	14.883 \| good	34.278 \| good	0.559 \| good	0.692 \| good	0.197 \| good
2025-10-21T05:00:00.000Z	29 \| good	3.333 \| good	14.883 \| good	31.366 \| good	0.502 \| good	0.897 \| good	0.218 \| good
2025-10-21T06:00:00.000Z	28 \| good	2.371 \| good	9.379 \| good	29.74 \| good	0.393 \| good	1.391 \| good	0.252 \| good
2025-10-21T07:00:00.000Z	31 \| good	2.371 \| good	9.379 \| good	33.163 \| good	0.35 \| good	4.77 \| good	0.235 \| good
2025-10-21T08:00:00.000Z	28 \| good	1.243 \| good	5.166 \| good	29.64 \| good	0.36 \| good	3.409 \| good	0.235 \| good
2025-10-21T09:00:00.000Z	27 \| good	1.243 \| good	5.166 \| good	29.167 \| good	0.385 \| good	4.66 \| good	0.221 \| good
2025-10-21T10:00:00.000Z	19 \| good	1.704 \| good	7.097 \| good	20.446 \| good	0.306 \| good	5.017 \| good	0.22 \| good
2025-10-21T11:00:00.000Z	23 \| good	2.209 \| good	8.735 \| good	24.714 \| good	0.307 \| good	5.891 \| good	0.221 \| good
2025-10-21T12:00:00.000Z	21 \| good	2.897 \| good	11.746 \| good	22.737 \| good	0.342 \| good	1.686 \| good	0.221 \| good
2025-10-21T13:00:00.000Z	23 \| good	3.537 \| good	15.388 \| good	24.715 \| good	0.358 \| good	1.59 \| good	0.237 \| good
2025-10-21T14:00:00.000Z	23 \| good	2.086 \| good	9.067 \| good	24.746 \| good	1.033 \| good	1.79 \| good	0.356 \| good
2025-10-21T15:00:00.000Z	20 \| good	1.126 \| good	4.976 \| good	22.147 \| good	0.772 \| good	2.306 \| good	0.463 \| good
2025-10-21T16:00:00.000Z	22 \| good	4.403 \| good	19.396 \| good	17.855 \| good	1.241 \| good	2.433 \| good	0.393 \| good
2025-10-21T17:00:00.000Z	29 \| good	4.403 \| good	19.396 \| good	30.969 \| good	0.974 \| good	2.81 \| good	0.339 \| good
2025-10-21T18:00:00.000Z	29 \| good	5.338 \| good	22.981 \| good	30.882 \| good	1.225 \| good	1.643 \| good	0.256 \| good
2025-10-21T19:00:00.000Z	33 \| good	6.204 \| good	28.015 \| good	29.94 \| good	1.091 \| good	1.092 \| good	0.236 \| good
2025-10-21T20:00:00.000Z	33 \| good	6.204 \| good	28.015 \| good	33.394 \| good	1.945 \| good	0.804 \| good	0.202 \| good
2025-10-21T21:00:00.000Z	34 \| good	0.704 \| good	2.802 \| good	37.441 \| good	1.283 \| good	1.399 \| good	0.188 \| good
2025-10-21T22:00:00.000Z	34 \| good	0.714 \| good	2.784 \| good	37.453 \| good	1.068 \| good	1.324 \| good	0.188 \| good
2025-10-21T23:00:00.000Z	34 \| good	4.31 \| good	9.902 \| good	36.771 \| good	0.863 \| good	1.087 \| good	0.188 \| good
2025-10-22T00:00:00.000Z	34 \| good	1.055 \| good	3.687 \| good	37.383 \| good	0.675 \| good	0.902 \| good	0.188 \| good
2025-10-22T01:00:00.000Z	35 \| good	1.193 \| good	4.102 \| good	37.874 \| good	0.622 \| good	1.861 \| good	0.188 \| good
2025-10-22T02:00:00.000Z	35 \| good	4.973 \| good	21.299 \| good	37.738 \| good	0.627 \| good	2.3 \| good	0.188 \| good
2025-10-22T03:00:00.000Z	22 \| good	3.577 \| good	15.918 \| good	19.51 \| good	0.296 \| good	5.442 \| good	0.155 \| good
2025-10-22T04:00:00.000Z	31 \| good	4.412 \| good	18.978 \| good	34.182 \| good	0.519 \| good	2.1 \| good	0.234 \| good
2025-10-22T05:00:00.000Z	30 \| good	3.59 \| good	16.26 \| good	32.08 \| good	0.527 \| good	3.55 \| good	0.233 \| good
2025-10-22T06:00:00.000Z	29 \| good	2.472 \| good	10.735 \| good	30.953 \| good	0.446 \| good	2.924 \| good	0.253 \| good
2025-10-22T07:00:00.000Z	27 \| good	1.397 \| good	6.065 \| good	29.434 \| good	0.442 \| good	1.277 \| good	0.224 \| good
2025-10-22T08:00:00.000Z	49 \| good	8.565 \| good	21.101 \| good	28.272 \| good	0.406 \| good	2.423 \| good	0.256 \| good
2025-10-22T09:00:00.000Z	25 \| good	1.324 \| good	5.985 \| good	27.121 \| good	0.393 \| good	2.983 \| good	0.24 \| good
2025-10-22T10:00:00.000Z	22 \| good	2.064 \| good	8.419 \| good	24.453 \| good	0.544 \| good	4.814 \| good	0.226 \| good
2025-10-22T11:00:00.000Z	23 \| good	1.554 \| good	6.18 \| good	25.395 \| good	0.589 \| good	4.49 \| good	0.241 \| good
2025-10-22T12:00:00.000Z	20 \| good	0.693 \| good	2.947 \| good	21.938 \| good	0.55 \| good	4.985 \| good	0.242 \| good
2025-10-22T12:00:00.000Z	20 \| good	0.693 \| good	2.947 \| good	21.938 \| good	0.55 \| good	4.985 \| good	0.242 \| good
2025-10-22T13:00:00.000Z	17 \| good	2.428 \| good	10.11 \| good	17.875 \| good	0.201 \| good	4.236 \| good	0.15 \| good
2025-10-22T14:00:00.000Z	13 \| good	2.21 \| good	9.16 \| good	13.976 \| good	0.21 \| good	4.156 \| good	0.154 \| good
2025-10-22T15:00:00.000Z	33 \| good	6.378 \| good	28.083 \| good	13.137 \| good	0.218 \| good	4.076 \| good	0.158 \| good
2025-10-22T16:00:00.000Z	38 \| good	6.751 \| good	29.651 \| good	22.052 \| good	0.24 \| good	3.118 \| good	0.147 \| good
2025-10-22T17:00:00.000Z	38 \| good	7.173 \| good	31.74 \| good	21.91 \| good	0.263 \| good	2.16 \| good	0.137 \| good
2025-10-22T18:00:00.000Z	54 \| moderate	10.556 \| good	46.908 \| good	26.416 \| good	0.285 \| good	1.202 \| good	0.127 \| good
2025-10-22T19:00:00.000Z	38 \| good	6.838 \| good	30.12 \| good	30.619 \| good	0.262 \| good	0.975 \| good	0.122 \| good
2025-10-22T20:00:00.000Z	31 \| good	4.149 \| good	18.302 \| good	33.641 \| good	0.24 \| good	0.749 \| good	0.117 \| good
2025-10-22T21:00:00.000Z	31 \| good	5.294 \| good	23.033 \| good	34.031 \| good	0.218 \| good	0.523 \| good	0.112 \| good
2025-10-22T22:00:00.000Z	30 \| good	4.992 \| good	21.425 \| good	31.95 \| good	0.208 \| good	1.028 \| good	0.116 \| good
2025-10-22T23:00:00.000Z	26 \| good	4.202 \| good	18.29 \| good	28.151 \| good	0.199 \| good	1.533 \| good	0.12 \| good
2025-10-23T00:00:00.000Z	18 \| good	3.382 \| good	14.576 \| good	19.096 \| good	0.19 \| good	2.038 \| good	0.124 \| good
2025-10-23T01:00:00.000Z	27 \| good	4.822 \| good	20.914 \| good	18.261 \| good	0.206 \| good	3.41 \| good	0.139 \| good
2025-10-23T02:00:00.000Z	27 \| good	5.073 \| good	22.193 \| good	16.488 \| good	0.223 \| good	4.782 \| good	0.154 \| good
2025-10-23T03:00:00.000Z	19 \| good	2.375 \| good	9.802 \| good	20.09 \| good	0.24 \| good	6.155 \| good	0.169 \| good
2025-10-23T04:00:00.000Z	20 \| good	2.011 \| good	8.147 \| good	21.581 \| good	0.236 \| good	6.294 \| good	0.17 \| good
2025-10-23T05:00:00.000Z	18 \| good	2.708 \| good	11.087 \| good	19.2 \| good	0.232 \| good	6.433 \| good	0.171 \| good
2025-10-23T06:00:00.000Z	16 \| good	2.123 \| good	8.589 \| good	16.85 \| good	0.229 \| good	6.572 \| good	0.172 \| good
2025-10-23T07:00:00.000Z	15 \| good	1.304 \| good	5.136 \| good	16.429 \| good	0.205 \| good	6.143 \| good	0.165 \| good
2025-10-23T08:00:00.000Z	16 \| good	2.657 \| good	11.106 \| good	14.565 \| good	0.181 \| good	5.713 \| good	0.159 \| good
2025-10-23T09:00:00.000Z	16 \| good	3.353 \| good	14.887 \| good	16.964 \| good	0.158 \| good	5.283 \| good	0.152 \| good
2025-10-23T10:00:00.000Z	22 \| good	3.69 \| good	16.075 \| good	13.001 \| good	0.153 \| good	4.913 \| good	0.148 \| good
2025-10-23T11:00:00.000Z	22 \| good	4.412 \| good	19.32 \| good	17.478 \| good	0.148 \| good	4.543 \| good	0.143 \| good
2025-10-23T12:00:00.000Z	20 \| good	2.232 \| good	9.035 \| good	22.208 \| good	0.143 \| good	4.173 \| good	0.138 \| good
2025-10-23T13:00:00.000Z	22 \| good	2.904 \| good	12.233 \| good	24.192 \| good	0.153 \| good	4.301 \| good	0.145 \| good
2025-10-23T14:00:00.000Z	18 \| good	0.941 \| good	3.915 \| good	19.076 \| good	0.163 \| good	4.429 \| good	0.152 \| good
2025-10-23T15:00:00.000Z	22 \| good	3.865 \| good	16.908 \| good	10.611 \| good	0.173 \| good	4.557 \| good	0.16 \| good
2025-10-23T16:00:00.000Z	23 \| good	3.973 \| good	17.57 \| good	24.844 \| good	0.206 \| good	3.208 \| good	0.144 \| good
2025-10-23T17:00:00.000Z	26 \| good	4.335 \| good	18.806 \| good	27.639 \| good	0.24 \| good	1.858 \| good	0.129 \| good
2025-10-23T18:00:00.000Z	33 \| good	6.157 \| good	27.306 \| good	32.251 \| good	0.274 \| good	0.509 \| good	0.113 \| good
2025-10-23T19:00:00.000Z	31 \| good	4.13 \| good	17.995 \| good	32.894 \| good	0.27 \| good	0.431 \| good	0.111 \| good
2025-10-23T20:00:00.000Z	31 \| good	3.504 \| good	15.323 \| good	32.745 \| good	0.266 \| good	0.353 \| good	0.109 \| good
2025-10-23T21:00:00.000Z	31 \| good	3.111 \| good	12.865 \| good	33.538 \| good	0.262 \| good	0.275 \| good	0.106 \| good
2025-10-23T22:00:00.000Z	29 \| good	2.794 \| good	11.464 \| good	31.474 \| good	0.26 \| good	0.548 \| good	0.109 \| good
2025-10-23T23:00:00.000Z	28 \| good	1.991 \| good	8.035 \| good	30.344 \| good	0.257 \| good	0.822 \| good	0.111 \| good
2025-10-24T00:00:00.000Z	27 \| good	2.775 \| good	11.555 \| good	28.556 \| good	0.255 \| good	1.096 \| good	0.114 \| good
2025-10-24T01:00:00.000Z	33 \| good	6.146 \| good	26.998 \| good	23.091 \| good	0.268 \| good	2.472 \| good	0.129 \| good
2025-10-24T02:00:00.000Z	38 \| good	6.727 \| good	29.766 \| good	22.474 \| good	0.281 \| good	3.849 \| good	0.143 \| good
2025-10-24T03:00:00.000Z	23 \| good	4.459 \| good	19.372 \| good	25.085 \| good	0.294 \| good	5.225 \| good	0.158 \| good
2025-10-24T04:00:00.000Z	38 \| good	6.669 \| good	29.681 \| good	26.269 \| good	0.286 \| good	5.617 \| good	0.162 \| good
2025-10-24T05:00:00.000Z	27 \| good	5.043 \| good	21.546 \| good	27.689 \| good	0.278 \| good	6.01 \| good	0.167 \| good
2025-10-24T06:00:00.000Z	22 \| good	3.558 \| good	3.736 \| good	23.468 \| good	0.271 \| good	6.398 \| good	0.171 \| good
2025-10-24T07:00:00.000Z	25 \| good	1.98 \| good	8.141 \| good	26.566 \| good	0.251 \| good	5.801 \| good	0.164 \| good
2025-10-24T08:00:00.000Z	25 \| good	2.295 \| good	9.133 \| good	27.344 \| good	0.232 \| good	5.199 \| good	0.157 \| good
2025-10-24T09:00:00.000Z	25 \| good	2.71 \| good	11.101 \| good	26.53 \| good	0.213 \| good	4.598 \| good	0.151 \| good
2025-10-24T10:00:00.000Z	18 \| good	2.662 \| good	10.936 \| good	18.966 \| good	0.211 \| good	4.211 \| good	0.147 \| good
2025-10-24T11:00:00.000Z	22 \| good	3.943 \| good	17.203 \| good	24.406 \| good	0.208 \| good	3.824 \| good	0.143 \| good
2025-10-24T12:00:00.000Z	24 \| good	3.94 \| good	4.108 \| good	26.32 \| good	0.207 \| good	3.422 \| good	0.139 \| good

Helena

Get reliable air quality data to drive your business

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

0.28ppm

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 08:00:00 on 2025-10-22.

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 03:00:00 on 2025-10-21.

What is the AQI in Helena, Montana right now?

As of now, the AQI in Helena, Montana is 20, 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 0.693 μg/m³.

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

The PM₁₀ concentration in Helena, Montana is 2.947 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 0.242 ppm.

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

Currently, Helena, Montana has a sulfur dioxide (SO₂) concentration of 0.55 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 21.938 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 4.985 ppb.

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