What is the current level of PM10 in Fort Collins, Colorado?

Fort Collins, Colorado currently has a PM10 concentration of 5.035 μg/m3.

What is the current level of sulfur dioxide (SO2) in Fort Collins, Colorado?

The current sulfur dioxide (SO2) concentration in Fort Collins, Colorado is 0.652 ppb.

What is the current level of ozone (O3) in Fort Collins, Colorado?

Fort Collins, Colorado currently has an ozone (O3) concentration of 38.087 ppm.

What is the current level of nitrogen dioxide (NO2) in Fort Collins, Colorado?

The current level of nitrogen dioxide (NO2) in Fort Collins, Colorado is 3.105 ppb.

Current air quality index in Fort Collins, Colorado today

Q: What is the PM2.5 concentration in Fort Collins, Colorado right now?

Fort Collins, Colorado currently has a PM2.5 concentration of 1.297 μg/m3.

Stay updated with real-time air quality in Fort Collins, Colorado 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

Fort Collins, Colorado

Last updated: ... (Local time)

Common air pollutants in Fort Collins, Colorado

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

2.38 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

7.98 μg/m³

155

255

425

605+

Ozone (O₃)

25.48 ppb

201

201+

Sulfur Dioxide (SO₂)

0.60 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

5.12 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.50 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Moderate

Fort Collins, Colorado

Get Live Pollen Counts

Fort Collins, Colorado

Scroll To Air Quality Map

Track live Fort Collins, Colorado air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-04-22T07:00:00.000Z	44 \| good	8.053 \| good	31.199 \| good	31.503 \| good	0.689 \| good	8.668 \| good	0.2 \| good
2026-04-22T08:00:00.000Z	44 \| good	7.751 \| good	29.951 \| good	35.338 \| good	0.741 \| good	10.261 \| good	0.199 \| good
2026-04-22T09:00:00.000Z	38 \| good	7.422 \| good	29.717 \| good	36.304 \| good	0.81 \| good	8.884 \| good	0.199 \| good
2026-04-22T10:00:00.000Z	38 \| good	7.462 \| good	28.977 \| good	34.208 \| good	0.719 \| good	9.782 \| good	0.2 \| good
2026-04-22T11:00:00.000Z	38 \| good	7.375 \| good	28.057 \| good	32.201 \| good	0.884 \| good	16.853 \| good	0.2 \| good
2026-04-22T12:00:00.000Z	44 \| good	7.833 \| good	30.853 \| good	33.141 \| good	0.931 \| good	23.66 \| good	0.201 \| good
2026-04-22T13:00:00.000Z	44 \| good	8.238 \| good	35.918 \| good	30.258 \| good	0.89 \| good	27.427 \| good	0.201 \| good
2026-04-22T14:00:00.000Z	44 \| good	8.285 \| good	37.038 \| good	34.042 \| good	0.863 \| good	14.392 \| good	0.299 \| good
2026-04-22T15:00:00.000Z	44 \| good	8.479 \| good	43.93 \| good	31.138 \| good	0.959 \| good	14.506 \| good	0.3 \| good
2026-04-22T16:00:00.000Z	49 \| good	8.555 \| good	42.702 \| good	34.022 \| good	0.731 \| good	14.549 \| good	0.3 \| good
2026-04-22T17:00:00.000Z	52 \| moderate	9.548 \| good	52.445 \| good	29.186 \| good	0.63 \| good	11.205 \| good	0.299 \| good
2026-04-22T18:00:00.000Z	39 \| good	7.464 \| good	41.743 \| good	40.179 \| good	0.535 \| good	3.182 \| good	0.2 \| good
2026-04-22T19:00:00.000Z	44 \| good	4.602 \| good	24.083 \| good	48.084 \| good	0.587 \| good	0.859 \| good	0.1 \| good
2026-04-22T20:00:00.000Z	44 \| good	3.501 \| good	20.022 \| good	48.185 \| good	0.51 \| good	0.953 \| good	0.2 \| good
2026-04-22T21:00:00.000Z	58 \| moderate	3.004 \| good	19.023 \| good	57.045 \| fine	0.486 \| good	1.057 \| good	0.2 \| good
2026-04-22T22:00:00.000Z	77 \| moderate	2.805 \| good	16.101 \| good	62.934 \| fine	0.532 \| good	1.392 \| good	0.2 \| good
2026-04-22T23:00:00.000Z	58 \| moderate	2.414 \| good	16.044 \| good	57.117 \| fine	0.469 \| good	2.269 \| good	0.199 \| good
2026-04-23T00:00:00.000Z	47 \| good	2.13 \| good	14.299 \| good	51.213 \| good	0.488 \| good	1.539 \| good	0.199 \| good
2026-04-23T01:00:00.000Z	51 \| moderate	2.107 \| good	12.077 \| good	55.057 \| fine	0.394 \| good	1.522 \| good	0.1 \| good
2026-04-23T02:00:00.000Z	51 \| moderate	2.306 \| good	13.079 \| good	55.045 \| fine	0.467 \| good	1.877 \| good	0.1 \| good
2026-04-23T03:00:00.000Z	51 \| moderate	2.551 \| good	12.28 \| good	55.022 \| fine	0.665 \| good	1.919 \| good	0.199 \| good
2026-04-23T04:00:00.000Z	50 \| good	3.483 \| good	21.043 \| good	54.016 \| good	0.341 \| good	1.581 \| good	0.2 \| good
2026-04-23T05:00:00.000Z	58 \| moderate	5.366 \| good	35.666 \| good	56.88 \| fine	0.369 \| good	0.743 \| good	0.101 \| good
2026-04-23T06:00:00.000Z	47 \| good	5.362 \| good	39.679 \| good	51.021 \| good	0.455 \| good	0.512 \| good	0.1 \| good
2026-04-23T07:00:00.000Z	49 \| good	4.499 \| good	34.352 \| good	52.955 \| good	0.704 \| good	0.579 \| good	0.1 \| good
2026-04-23T08:00:00.000Z	47 \| good	3.923 \| good	29.19 \| good	50.988 \| good	0.693 \| good	0.455 \| good	0.1 \| good
2026-04-23T09:00:00.000Z	47 \| good	3.601 \| good	25.929 \| good	50.97 \| good	0.447 \| good	0.524 \| good	0.1 \| good
2026-04-23T10:00:00.000Z	45 \| good	3.312 \| good	24.974 \| good	49.121 \| good	0.608 \| good	0.499 \| good	0.1 \| good
2026-04-23T11:00:00.000Z	44 \| good	3.316 \| good	23.233 \| good	48.135 \| good	0.777 \| good	0.444 \| good	0.101 \| good
2026-04-23T12:00:00.000Z	46 \| good	3.011 \| good	20.122 \| good	50.12 \| good	0.59 \| good	0.86 \| good	0.101 \| good
2026-04-23T13:00:00.000Z	74 \| moderate	2.224 \| good	14.171 \| good	61.848 \| fine	0.562 \| good	0.596 \| good	0.101 \| good
2026-04-23T14:00:00.000Z	74 \| moderate	2.501 \| good	18.004 \| good	61.938 \| fine	0.589 \| good	1.403 \| good	0.101 \| good
2026-04-23T15:00:00.000Z	71 \| moderate	2.595 \| good	16.965 \| good	60.956 \| fine	0.795 \| good	4.445 \| good	0.101 \| good
2026-04-23T16:00:00.000Z	50 \| good	2.203 \| good	16.123 \| good	54.14 \| good	0.596 \| good	2.039 \| good	0.1 \| good
2026-04-23T17:00:00.000Z	47 \| good	2.794 \| good	21.919 \| good	51.162 \| good	0.444 \| good	1.638 \| good	0.1 \| good
2026-04-23T18:00:00.000Z	45 \| good	2.295 \| good	17.012 \| good	49.11 \| good	0.66 \| good	1.4 \| good	0.1 \| good
2026-04-23T19:00:00.000Z	44 \| good	1.793 \| good	12.997 \| good	48.079 \| good	0.51 \| good	1.53 \| good	0.2 \| good
2026-04-23T20:00:00.000Z	46 \| good	1.593 \| good	12.967 \| good	49.977 \| good	0.511 \| good	1.828 \| good	0.1 \| good
2026-04-23T21:00:00.000Z	48 \| good	1.89 \| good	13.952 \| good	51.92 \| good	0.629 \| good	1.761 \| good	0.101 \| good
2026-04-23T22:00:00.000Z	43 \| good	2.089 \| good	13.95 \| good	46.07 \| good	0.515 \| good	1.505 \| good	0.101 \| good
2026-04-23T23:00:00.000Z	40 \| good	1.688 \| good	9.968 \| good	43.177 \| good	0.654 \| good	1.428 \| good	0.2 \| good
2026-04-24T00:00:00.000Z	36 \| good	1.195 \| good	6.013 \| good	39.267 \| good	0.627 \| good	0.87 \| good	0.101 \| good
2026-04-24T01:00:00.000Z	41 \| good	0.9 \| good	5.044 \| good	44.039 \| good	0.547 \| good	1.904 \| good	0.101 \| good
2026-04-24T02:00:00.000Z	44 \| good	0.802 \| good	4.034 \| good	47.901 \| good	0.966 \| good	2.287 \| good	0.101 \| good
2026-04-24T03:00:00.000Z	35 \| good	4.636 \| good	19.962 \| good	38.039 \| good	0.135 \| good	2.789 \| good	0.143 \| good
2026-04-24T04:00:00.000Z	35 \| good	1.297 \| good	5.035 \| good	38.087 \| good	0.652 \| good	3.105 \| good	0.299 \| good
2026-04-24T05:00:00.000Z	23 \| good	2.382 \| good	7.98 \| good	25.482 \| good	0.605 \| good	5.116 \| good	0.497 \| good
2026-04-24T06:00:00.000Z	23 \| good	2.382 \| good	7.98 \| good	25.482 \| good	0.605 \| good	5.116 \| good	0.497 \| good
2026-04-24T05:00:00.000Z	44 \| good	7.813 \| good	33.923 \| good	37.527 \| good	0.224 \| good	5.958 \| good	0.164 \| good
2026-04-24T06:00:00.000Z	38 \| good	7.077 \| good	31.756 \| good	36.16 \| good	0.262 \| good	7.227 \| good	0.172 \| good
2026-04-24T07:00:00.000Z	36 \| good	5.26 \| good	22.812 \| good	39.257 \| good	0.239 \| good	6.521 \| good	0.166 \| good
2026-04-24T08:00:00.000Z	35 \| good	4.243 \| good	18.86 \| good	37.753 \| good	0.215 \| good	5.815 \| good	0.16 \| good
2026-04-24T09:00:00.000Z	33 \| good	4.586 \| good	19.94 \| good	36.436 \| good	0.192 \| good	5.109 \| good	0.154 \| good
2026-04-24T10:00:00.000Z	29 \| good	4.095 \| good	17.917 \| good	31.474 \| good	0.173 \| good	4.554 \| good	0.149 \| good
2026-04-24T11:00:00.000Z	27 \| good	5.362 \| good	22.901 \| good	22.921 \| good	0.155 \| good	4 \| good	0.145 \| good
2026-04-24T12:00:00.000Z	38 \| good	7.03 \| good	30.881 \| good	20.053 \| good	0.136 \| good	3.445 \| good	0.14 \| good
2026-04-24T13:00:00.000Z	33 \| good	5.742 \| good	24.804 \| good	24.146 \| good	0.151 \| good	2.904 \| good	0.139 \| good
2026-04-24T14:00:00.000Z	33 \| good	6.488 \| good	28.981 \| good	29.555 \| good	0.166 \| good	2.363 \| good	0.138 \| good
2026-04-24T15:00:00.000Z	34 \| good	3.093 \| good	12.258 \| good	36.814 \| good	0.182 \| good	1.823 \| good	0.136 \| good
2026-04-24T16:00:00.000Z	34 \| good	5.242 \| good	22.912 \| good	36.879 \| good	0.192 \| good	1.546 \| good	0.131 \| good
2026-04-24T17:00:00.000Z	38 \| good	4.555 \| good	19.899 \| good	40.753 \| good	0.203 \| good	1.27 \| good	0.125 \| good
2026-04-24T18:00:00.000Z	45 \| good	6.943 \| good	30.841 \| good	49.279 \| good	0.214 \| good	0.994 \| good	0.119 \| good
2026-04-24T19:00:00.000Z	56 \| moderate	11.586 \| good	50.977 \| good	52.365 \| good	0.183 \| good	0.778 \| good	0.116 \| good
2026-04-24T20:00:00.000Z	81 \| moderate	24.885 \| fine	109.484 \| fine	55.029 \| fine	0.152 \| good	0.563 \| good	0.113 \| good
2026-04-24T21:00:00.000Z	77 \| moderate	22.805 \| fine	99.347 \| fine	57.922 \| fine	0.121 \| good	0.348 \| good	0.11 \| good
2026-04-24T22:00:00.000Z	96 \| moderate	32.676 \| fine	141.34 \| fine	59.313 \| fine	0.123 \| good	0.367 \| good	0.11 \| good
2026-04-24T23:00:00.000Z	152 \| unhealthy	56.896 \| poor	247.729 \| moderate	58.242 \| fine	0.125 \| good	0.386 \| good	0.111 \| good
2026-04-25T00:00:00.000Z	174 \| unhealthy	87.732 \| poor	287.046 \| poor	55.307 \| fine	0.127 \| good	0.406 \| good	0.111 \| good
2026-04-25T01:00:00.000Z	163 \| unhealthy	71.841 \| poor	266.334 \| poor	54.387 \| good	0.164 \| good	1.613 \| good	0.121 \| good
2026-04-25T02:00:00.000Z	171 \| unhealthy	84.205 \| poor	283.054 \| poor	45.404 \| good	0.201 \| good	2.821 \| good	0.131 \| good
2026-04-25T03:00:00.000Z	155 \| unhealthy	61.385 \| poor	254.651 \| moderate	47.392 \| good	0.239 \| good	4.029 \| good	0.141 \| good
2026-04-25T04:00:00.000Z	99 \| moderate	34.764 \| fine	150.52 \| fine	49.429 \| good	0.214 \| good	3.374 \| good	0.14 \| good
2026-04-25T05:00:00.000Z	49 \| good	9.382 \| good	41.454 \| good	45.251 \| good	0.19 \| good	2.719 \| good	0.139 \| good
2026-04-25T06:00:00.000Z	40 \| good	6.806 \| good	30.02 \| good	42.886 \| good	0.165 \| good	2.065 \| good	0.138 \| good
2026-04-25T07:00:00.000Z	41 \| good	6.61 \| good	29.845 \| good	44.112 \| good	0.155 \| good	1.988 \| good	0.137 \| good
2026-04-25T08:00:00.000Z	38 \| good	6.856 \| good	30.072 \| good	37.751 \| good	0.144 \| good	1.912 \| good	0.136 \| good
2026-04-25T09:00:00.000Z	33 \| good	5.715 \| good	24.879 \| good	36.132 \| good	0.134 \| good	1.836 \| good	0.135 \| good
2026-04-25T10:00:00.000Z	33 \| good	5.733 \| good	24.868 \| good	31.936 \| good	0.15 \| good	1.887 \| good	0.135 \| good
2026-04-25T11:00:00.000Z	33 \| good	6.034 \| good	26.955 \| good	33.709 \| good	0.165 \| good	1.938 \| good	0.135 \| good
2026-04-25T12:00:00.000Z	28 \| good	5.268 \| good	22.989 \| good	29.722 \| good	0.181 \| good	1.989 \| good	0.135 \| good
2026-04-25T13:00:00.000Z	28 \| good	2.477 \| good	10 \| good	29.857 \| good	0.214 \| good	1.825 \| good	0.136 \| good
2026-04-25T14:00:00.000Z	49 \| good	9.483 \| good	42.817 \| good	31.658 \| good	0.248 \| good	1.661 \| good	0.136 \| good
2026-04-25T15:00:00.000Z	58 \| moderate	13.257 \| fine	59.064 \| fine	38.112 \| good	0.281 \| good	1.497 \| good	0.137 \| good
2026-04-25T16:00:00.000Z	58 \| moderate	13.421 \| fine	60.774 \| fine	38.259 \| good	0.289 \| good	1.361 \| good	0.136 \| good
2026-04-25T17:00:00.000Z	38 \| good	7.249 \| good	31.999 \| good	40.084 \| good	0.297 \| good	1.226 \| good	0.135 \| good
2026-04-25T18:00:00.000Z	40 \| good	3.671 \| good	16.004 \| good	43.343 \| good	0.305 \| good	1.091 \| good	0.135 \| good
2026-04-25T19:00:00.000Z	42 \| good	3.149 \| good	13.814 \| good	44.946 \| good	0.294 \| good	1.051 \| good	0.132 \| good
2026-04-25T20:00:00.000Z	43 \| good	1.797 \| good	7.102 \| good	46.013 \| good	0.284 \| good	1.011 \| good	0.13 \| good
2026-04-25T21:00:00.000Z	47 \| good	1.29 \| good	5.048 \| good	50.948 \| good	0.273 \| good	0.971 \| good	0.128 \| good
2026-04-25T22:00:00.000Z	50 \| good	0.158 \| good	0.081 \| good	53.793 \| good	0.279 \| good	1.176 \| good	0.129 \| good
2026-04-25T23:00:00.000Z	50 \| good	0.614 \| good	2.023 \| good	53.732 \| good	0.285 \| good	1.38 \| good	0.131 \| good
2026-04-26T00:00:00.000Z	58 \| moderate	5.137 \| good	8.271 \| good	56.613 \| fine	0.292 \| good	1.59 \| good	0.132 \| good
2026-04-26T01:00:00.000Z	43 \| good	4.801 \| good	20.975 \| good	46.389 \| good	0.332 \| good	2.503 \| good	0.141 \| good
2026-04-26T02:00:00.000Z	34 \| good	5.683 \| good	24.058 \| good	36.999 \| good	0.373 \| good	3.422 \| good	0.149 \| good
2026-04-26T03:00:00.000Z	39 \| good	4.321 \| good	19.008 \| good	41.517 \| good	0.414 \| good	4.34 \| good	0.157 \| good
2026-04-26T04:00:00.000Z	39 \| good	5.951 \| good	26.772 \| good	41.754 \| good	0.395 \| good	4.412 \| good	0.157 \| good

Fort Collins

Empower business decisions with accurate air quality data

Real-time air quality map: Monitor AQI near Fort Collins, Colorado

0.15ppm

How accurate is Colorado, USA air quality data?

The air quality data for Colorado, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.

Source: Ambee Data Sources

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Frequently asked questions

How frequently does the air quality data for Fort Collins, Colorado get updated?

Air quality updates for Fort Collins, Colorado are available every hour.

What time in the past 24 hours saw the poorest air quality in Fort Collins, Colorado?

Fort Collins, Colorado experienced its worst air quality at 02:00:00, 2026-04-23.

When was air quality in Fort Collins, Colorado the best over the past 24 hours?

The best air quality in Fort Collins, Colorado was observed at 03:00:00 on 2026-04-24.

What is the air quality in Fort Collins, Colorado right now?

The air quality in Fort Collins, Colorado right now is Good, with an AQI of 35.

What pollutant is most frequently found in Fort Collins, Colorado?

In Fort Collins, Colorado, O3 is the most frequently found pollutant.

What can I do if the air quality in Fort Collins, Colorado is poor?

When air quality in Fort Collins, Colorado is compromised, staying indoors and wearing a mask can reduce health risks.

What is the PM_2.5 concentration in Fort Collins, Colorado right now?

Fort Collins, Colorado currently has a PM_2.5 concentration of 1.297 μg/m³.

What is the current level of PM₁₀ in Fort Collins, Colorado?

Fort Collins, Colorado currently has a PM₁₀ concentration of 5.035 μg/m³.

What is the current level of carbon monoxide (CO) in Fort Collins, Colorado?

The current carbon monoxide (CO) level in Fort Collins, Colorado is 0.299 ppm.

What is the current level of sulfur dioxide (SO₂) in Fort Collins, Colorado?

The current sulfur dioxide (SO₂) concentration in Fort Collins, Colorado is 0.652 ppb.

What is the current level of ozone (O₃) in Fort Collins, Colorado?

Fort Collins, Colorado currently has an ozone (O₃) concentration of 38.087 ppm.

What is the current level of nitrogen dioxide (NO₂) in Fort Collins, Colorado?

The current level of nitrogen dioxide (NO₂) in Fort Collins, Colorado is 3.105 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-04-22T07:00:00.000Z	44 \| good	8.053 \| good	31.199 \| good	31.503 \| good	0.689 \| good	8.668 \| good	0.2 \| good
2026-04-22T08:00:00.000Z	44 \| good	7.751 \| good	29.951 \| good	35.338 \| good	0.741 \| good	10.261 \| good	0.199 \| good
2026-04-22T09:00:00.000Z	38 \| good	7.422 \| good	29.717 \| good	36.304 \| good	0.81 \| good	8.884 \| good	0.199 \| good
2026-04-22T10:00:00.000Z	38 \| good	7.462 \| good	28.977 \| good	34.208 \| good	0.719 \| good	9.782 \| good	0.2 \| good
2026-04-22T11:00:00.000Z	38 \| good	7.375 \| good	28.057 \| good	32.201 \| good	0.884 \| good	16.853 \| good	0.2 \| good
2026-04-22T12:00:00.000Z	44 \| good	7.833 \| good	30.853 \| good	33.141 \| good	0.931 \| good	23.66 \| good	0.201 \| good
2026-04-22T13:00:00.000Z	44 \| good	8.238 \| good	35.918 \| good	30.258 \| good	0.89 \| good	27.427 \| good	0.201 \| good
2026-04-22T14:00:00.000Z	44 \| good	8.285 \| good	37.038 \| good	34.042 \| good	0.863 \| good	14.392 \| good	0.299 \| good
2026-04-22T15:00:00.000Z	44 \| good	8.479 \| good	43.93 \| good	31.138 \| good	0.959 \| good	14.506 \| good	0.3 \| good
2026-04-22T16:00:00.000Z	49 \| good	8.555 \| good	42.702 \| good	34.022 \| good	0.731 \| good	14.549 \| good	0.3 \| good
2026-04-22T17:00:00.000Z	52 \| moderate	9.548 \| good	52.445 \| good	29.186 \| good	0.63 \| good	11.205 \| good	0.299 \| good
2026-04-22T18:00:00.000Z	39 \| good	7.464 \| good	41.743 \| good	40.179 \| good	0.535 \| good	3.182 \| good	0.2 \| good
2026-04-22T19:00:00.000Z	44 \| good	4.602 \| good	24.083 \| good	48.084 \| good	0.587 \| good	0.859 \| good	0.1 \| good
2026-04-22T20:00:00.000Z	44 \| good	3.501 \| good	20.022 \| good	48.185 \| good	0.51 \| good	0.953 \| good	0.2 \| good
2026-04-22T21:00:00.000Z	58 \| moderate	3.004 \| good	19.023 \| good	57.045 \| fine	0.486 \| good	1.057 \| good	0.2 \| good
2026-04-22T22:00:00.000Z	77 \| moderate	2.805 \| good	16.101 \| good	62.934 \| fine	0.532 \| good	1.392 \| good	0.2 \| good
2026-04-22T23:00:00.000Z	58 \| moderate	2.414 \| good	16.044 \| good	57.117 \| fine	0.469 \| good	2.269 \| good	0.199 \| good
2026-04-23T00:00:00.000Z	47 \| good	2.13 \| good	14.299 \| good	51.213 \| good	0.488 \| good	1.539 \| good	0.199 \| good
2026-04-23T01:00:00.000Z	51 \| moderate	2.107 \| good	12.077 \| good	55.057 \| fine	0.394 \| good	1.522 \| good	0.1 \| good
2026-04-23T02:00:00.000Z	51 \| moderate	2.306 \| good	13.079 \| good	55.045 \| fine	0.467 \| good	1.877 \| good	0.1 \| good
2026-04-23T03:00:00.000Z	51 \| moderate	2.551 \| good	12.28 \| good	55.022 \| fine	0.665 \| good	1.919 \| good	0.199 \| good
2026-04-23T04:00:00.000Z	50 \| good	3.483 \| good	21.043 \| good	54.016 \| good	0.341 \| good	1.581 \| good	0.2 \| good
2026-04-23T05:00:00.000Z	58 \| moderate	5.366 \| good	35.666 \| good	56.88 \| fine	0.369 \| good	0.743 \| good	0.101 \| good
2026-04-23T06:00:00.000Z	47 \| good	5.362 \| good	39.679 \| good	51.021 \| good	0.455 \| good	0.512 \| good	0.1 \| good
2026-04-23T07:00:00.000Z	49 \| good	4.499 \| good	34.352 \| good	52.955 \| good	0.704 \| good	0.579 \| good	0.1 \| good
2026-04-23T08:00:00.000Z	47 \| good	3.923 \| good	29.19 \| good	50.988 \| good	0.693 \| good	0.455 \| good	0.1 \| good
2026-04-23T09:00:00.000Z	47 \| good	3.601 \| good	25.929 \| good	50.97 \| good	0.447 \| good	0.524 \| good	0.1 \| good
2026-04-23T10:00:00.000Z	45 \| good	3.312 \| good	24.974 \| good	49.121 \| good	0.608 \| good	0.499 \| good	0.1 \| good
2026-04-23T11:00:00.000Z	44 \| good	3.316 \| good	23.233 \| good	48.135 \| good	0.777 \| good	0.444 \| good	0.101 \| good
2026-04-23T12:00:00.000Z	46 \| good	3.011 \| good	20.122 \| good	50.12 \| good	0.59 \| good	0.86 \| good	0.101 \| good
2026-04-23T13:00:00.000Z	74 \| moderate	2.224 \| good	14.171 \| good	61.848 \| fine	0.562 \| good	0.596 \| good	0.101 \| good
2026-04-23T14:00:00.000Z	74 \| moderate	2.501 \| good	18.004 \| good	61.938 \| fine	0.589 \| good	1.403 \| good	0.101 \| good
2026-04-23T15:00:00.000Z	71 \| moderate	2.595 \| good	16.965 \| good	60.956 \| fine	0.795 \| good	4.445 \| good	0.101 \| good
2026-04-23T16:00:00.000Z	50 \| good	2.203 \| good	16.123 \| good	54.14 \| good	0.596 \| good	2.039 \| good	0.1 \| good
2026-04-23T17:00:00.000Z	47 \| good	2.794 \| good	21.919 \| good	51.162 \| good	0.444 \| good	1.638 \| good	0.1 \| good
2026-04-23T18:00:00.000Z	45 \| good	2.295 \| good	17.012 \| good	49.11 \| good	0.66 \| good	1.4 \| good	0.1 \| good
2026-04-23T19:00:00.000Z	44 \| good	1.793 \| good	12.997 \| good	48.079 \| good	0.51 \| good	1.53 \| good	0.2 \| good
2026-04-23T20:00:00.000Z	46 \| good	1.593 \| good	12.967 \| good	49.977 \| good	0.511 \| good	1.828 \| good	0.1 \| good
2026-04-23T21:00:00.000Z	48 \| good	1.89 \| good	13.952 \| good	51.92 \| good	0.629 \| good	1.761 \| good	0.101 \| good
2026-04-23T22:00:00.000Z	43 \| good	2.089 \| good	13.95 \| good	46.07 \| good	0.515 \| good	1.505 \| good	0.101 \| good
2026-04-23T23:00:00.000Z	40 \| good	1.688 \| good	9.968 \| good	43.177 \| good	0.654 \| good	1.428 \| good	0.2 \| good
2026-04-24T00:00:00.000Z	36 \| good	1.195 \| good	6.013 \| good	39.267 \| good	0.627 \| good	0.87 \| good	0.101 \| good
2026-04-24T01:00:00.000Z	41 \| good	0.9 \| good	5.044 \| good	44.039 \| good	0.547 \| good	1.904 \| good	0.101 \| good
2026-04-24T02:00:00.000Z	44 \| good	0.802 \| good	4.034 \| good	47.901 \| good	0.966 \| good	2.287 \| good	0.101 \| good
2026-04-24T03:00:00.000Z	35 \| good	4.636 \| good	19.962 \| good	38.039 \| good	0.135 \| good	2.789 \| good	0.143 \| good
2026-04-24T04:00:00.000Z	35 \| good	1.297 \| good	5.035 \| good	38.087 \| good	0.652 \| good	3.105 \| good	0.299 \| good
2026-04-24T05:00:00.000Z	23 \| good	2.382 \| good	7.98 \| good	25.482 \| good	0.605 \| good	5.116 \| good	0.497 \| good
2026-04-24T06:00:00.000Z	23 \| good	2.382 \| good	7.98 \| good	25.482 \| good	0.605 \| good	5.116 \| good	0.497 \| good
2026-04-24T05:00:00.000Z	44 \| good	7.813 \| good	33.923 \| good	37.527 \| good	0.224 \| good	5.958 \| good	0.164 \| good
2026-04-24T06:00:00.000Z	38 \| good	7.077 \| good	31.756 \| good	36.16 \| good	0.262 \| good	7.227 \| good	0.172 \| good
2026-04-24T07:00:00.000Z	36 \| good	5.26 \| good	22.812 \| good	39.257 \| good	0.239 \| good	6.521 \| good	0.166 \| good
2026-04-24T08:00:00.000Z	35 \| good	4.243 \| good	18.86 \| good	37.753 \| good	0.215 \| good	5.815 \| good	0.16 \| good
2026-04-24T09:00:00.000Z	33 \| good	4.586 \| good	19.94 \| good	36.436 \| good	0.192 \| good	5.109 \| good	0.154 \| good
2026-04-24T10:00:00.000Z	29 \| good	4.095 \| good	17.917 \| good	31.474 \| good	0.173 \| good	4.554 \| good	0.149 \| good
2026-04-24T11:00:00.000Z	27 \| good	5.362 \| good	22.901 \| good	22.921 \| good	0.155 \| good	4 \| good	0.145 \| good
2026-04-24T12:00:00.000Z	38 \| good	7.03 \| good	30.881 \| good	20.053 \| good	0.136 \| good	3.445 \| good	0.14 \| good
2026-04-24T13:00:00.000Z	33 \| good	5.742 \| good	24.804 \| good	24.146 \| good	0.151 \| good	2.904 \| good	0.139 \| good
2026-04-24T14:00:00.000Z	33 \| good	6.488 \| good	28.981 \| good	29.555 \| good	0.166 \| good	2.363 \| good	0.138 \| good
2026-04-24T15:00:00.000Z	34 \| good	3.093 \| good	12.258 \| good	36.814 \| good	0.182 \| good	1.823 \| good	0.136 \| good
2026-04-24T16:00:00.000Z	34 \| good	5.242 \| good	22.912 \| good	36.879 \| good	0.192 \| good	1.546 \| good	0.131 \| good
2026-04-24T17:00:00.000Z	38 \| good	4.555 \| good	19.899 \| good	40.753 \| good	0.203 \| good	1.27 \| good	0.125 \| good
2026-04-24T18:00:00.000Z	45 \| good	6.943 \| good	30.841 \| good	49.279 \| good	0.214 \| good	0.994 \| good	0.119 \| good
2026-04-24T19:00:00.000Z	56 \| moderate	11.586 \| good	50.977 \| good	52.365 \| good	0.183 \| good	0.778 \| good	0.116 \| good
2026-04-24T20:00:00.000Z	81 \| moderate	24.885 \| fine	109.484 \| fine	55.029 \| fine	0.152 \| good	0.563 \| good	0.113 \| good
2026-04-24T21:00:00.000Z	77 \| moderate	22.805 \| fine	99.347 \| fine	57.922 \| fine	0.121 \| good	0.348 \| good	0.11 \| good
2026-04-24T22:00:00.000Z	96 \| moderate	32.676 \| fine	141.34 \| fine	59.313 \| fine	0.123 \| good	0.367 \| good	0.11 \| good
2026-04-24T23:00:00.000Z	152 \| unhealthy	56.896 \| poor	247.729 \| moderate	58.242 \| fine	0.125 \| good	0.386 \| good	0.111 \| good
2026-04-25T00:00:00.000Z	174 \| unhealthy	87.732 \| poor	287.046 \| poor	55.307 \| fine	0.127 \| good	0.406 \| good	0.111 \| good
2026-04-25T01:00:00.000Z	163 \| unhealthy	71.841 \| poor	266.334 \| poor	54.387 \| good	0.164 \| good	1.613 \| good	0.121 \| good
2026-04-25T02:00:00.000Z	171 \| unhealthy	84.205 \| poor	283.054 \| poor	45.404 \| good	0.201 \| good	2.821 \| good	0.131 \| good
2026-04-25T03:00:00.000Z	155 \| unhealthy	61.385 \| poor	254.651 \| moderate	47.392 \| good	0.239 \| good	4.029 \| good	0.141 \| good
2026-04-25T04:00:00.000Z	99 \| moderate	34.764 \| fine	150.52 \| fine	49.429 \| good	0.214 \| good	3.374 \| good	0.14 \| good
2026-04-25T05:00:00.000Z	49 \| good	9.382 \| good	41.454 \| good	45.251 \| good	0.19 \| good	2.719 \| good	0.139 \| good
2026-04-25T06:00:00.000Z	40 \| good	6.806 \| good	30.02 \| good	42.886 \| good	0.165 \| good	2.065 \| good	0.138 \| good
2026-04-25T07:00:00.000Z	41 \| good	6.61 \| good	29.845 \| good	44.112 \| good	0.155 \| good	1.988 \| good	0.137 \| good
2026-04-25T08:00:00.000Z	38 \| good	6.856 \| good	30.072 \| good	37.751 \| good	0.144 \| good	1.912 \| good	0.136 \| good
2026-04-25T09:00:00.000Z	33 \| good	5.715 \| good	24.879 \| good	36.132 \| good	0.134 \| good	1.836 \| good	0.135 \| good
2026-04-25T10:00:00.000Z	33 \| good	5.733 \| good	24.868 \| good	31.936 \| good	0.15 \| good	1.887 \| good	0.135 \| good
2026-04-25T11:00:00.000Z	33 \| good	6.034 \| good	26.955 \| good	33.709 \| good	0.165 \| good	1.938 \| good	0.135 \| good
2026-04-25T12:00:00.000Z	28 \| good	5.268 \| good	22.989 \| good	29.722 \| good	0.181 \| good	1.989 \| good	0.135 \| good
2026-04-25T13:00:00.000Z	28 \| good	2.477 \| good	10 \| good	29.857 \| good	0.214 \| good	1.825 \| good	0.136 \| good
2026-04-25T14:00:00.000Z	49 \| good	9.483 \| good	42.817 \| good	31.658 \| good	0.248 \| good	1.661 \| good	0.136 \| good
2026-04-25T15:00:00.000Z	58 \| moderate	13.257 \| fine	59.064 \| fine	38.112 \| good	0.281 \| good	1.497 \| good	0.137 \| good
2026-04-25T16:00:00.000Z	58 \| moderate	13.421 \| fine	60.774 \| fine	38.259 \| good	0.289 \| good	1.361 \| good	0.136 \| good
2026-04-25T17:00:00.000Z	38 \| good	7.249 \| good	31.999 \| good	40.084 \| good	0.297 \| good	1.226 \| good	0.135 \| good
2026-04-25T18:00:00.000Z	40 \| good	3.671 \| good	16.004 \| good	43.343 \| good	0.305 \| good	1.091 \| good	0.135 \| good
2026-04-25T19:00:00.000Z	42 \| good	3.149 \| good	13.814 \| good	44.946 \| good	0.294 \| good	1.051 \| good	0.132 \| good
2026-04-25T20:00:00.000Z	43 \| good	1.797 \| good	7.102 \| good	46.013 \| good	0.284 \| good	1.011 \| good	0.13 \| good
2026-04-25T21:00:00.000Z	47 \| good	1.29 \| good	5.048 \| good	50.948 \| good	0.273 \| good	0.971 \| good	0.128 \| good
2026-04-25T22:00:00.000Z	50 \| good	0.158 \| good	0.081 \| good	53.793 \| good	0.279 \| good	1.176 \| good	0.129 \| good
2026-04-25T23:00:00.000Z	50 \| good	0.614 \| good	2.023 \| good	53.732 \| good	0.285 \| good	1.38 \| good	0.131 \| good
2026-04-26T00:00:00.000Z	58 \| moderate	5.137 \| good	8.271 \| good	56.613 \| fine	0.292 \| good	1.59 \| good	0.132 \| good
2026-04-26T01:00:00.000Z	43 \| good	4.801 \| good	20.975 \| good	46.389 \| good	0.332 \| good	2.503 \| good	0.141 \| good
2026-04-26T02:00:00.000Z	34 \| good	5.683 \| good	24.058 \| good	36.999 \| good	0.373 \| good	3.422 \| good	0.149 \| good
2026-04-26T03:00:00.000Z	39 \| good	4.321 \| good	19.008 \| good	41.517 \| good	0.414 \| good	4.34 \| good	0.157 \| good
2026-04-26T04:00:00.000Z	39 \| good	5.951 \| good	26.772 \| good	41.754 \| good	0.395 \| good	4.412 \| good	0.157 \| good

Current air quality index in Fort Collins, Colorado today

Common air pollutants in Fort Collins, Colorado

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live Fort Collins, Colorado air quality forecast and history

Empower business decisions with accurate air quality data

Real-time air quality map: Monitor AQI near Fort Collins, Colorado

Air quality in nearby cities

Wellington, Colorado

Windsor, Colorado

Severance, Colorado

Loveland, Colorado

Berthoud, Colorado

Johnstown, Colorado

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Air quality levels in US

Frequently asked questions

How frequently does the air quality data for Fort Collins, Colorado get updated?

What time in the past 24 hours saw the poorest air quality in Fort Collins, Colorado?

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What is the air quality in Fort Collins, Colorado right now?

What pollutant is most frequently found in Fort Collins, Colorado?

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What is the PM2.5 concentration in Fort Collins, Colorado right now?

What is the current level of PM10 in Fort Collins, Colorado?

What is the current level of carbon monoxide (CO) in Fort Collins, Colorado?

What is the current level of sulfur dioxide (SO2) in Fort Collins, Colorado?

What is the current level of ozone (O3) in Fort Collins, Colorado?

What is the current level of nitrogen dioxide (NO2) in Fort Collins, Colorado?

Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

What is the PM_2.5 concentration in Fort Collins, Colorado right now?

What is the current level of PM₁₀ in Fort Collins, Colorado?

What is the current level of sulfur dioxide (SO₂) in Fort Collins, Colorado?

What is the current level of ozone (O₃) in Fort Collins, Colorado?

What is the current level of nitrogen dioxide (NO₂) in Fort Collins, Colorado?