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

Fort Collins, Colorado currently has a PM10 concentration of 13.043 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 0.356 ppb.

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

Fort Collins, Colorado currently has an ozone (O3) concentration of 30.112 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 2.143 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 4.003 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)

4.00 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

13.04 μg/m³

155

255

425

605+

Ozone (O₃)

30.11 ppb

201

201+

Sulfur Dioxide (SO₂)

0.36 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

2.14 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.10 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

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
2026-01-21T11:00:00.000Z	22 \| good	3.798 \| good	8.091 \| good	20.172 \| good	0.565 \| good	16.605 \| good	0.101 \| good
2026-01-21T12:00:00.000Z	22 \| good	3.909 \| good	7.319 \| good	20.151 \| good	0.629 \| good	19.02 \| good	0.2 \| good
2026-01-21T13:00:00.000Z	20 \| good	1.461 \| good	6.253 \| good	20.138 \| good	0.777 \| good	21.44 \| good	0.201 \| good
2026-01-21T14:00:00.000Z	19 \| good	1.467 \| good	7.382 \| good	17.201 \| good	1.138 \| good	19.601 \| good	0.3 \| good
2026-01-21T15:00:00.000Z	52 \| moderate	9.711 \| good	10.186 \| good	14.202 \| good	1.319 \| good	15.188 \| good	0.501 \| good
2026-01-21T16:00:00.000Z	49 \| good	8.766 \| good	14.532 \| good	14.169 \| good	1.899 \| good	23.038 \| good	0.403 \| good
2026-01-21T17:00:00.000Z	49 \| good	8.57 \| good	19.389 \| good	17.109 \| good	1.962 \| good	26.224 \| good	0.4 \| good
2026-01-21T18:00:00.000Z	44 \| good	8.353 \| good	24.436 \| good	19.105 \| good	1.483 \| good	26.202 \| good	0.301 \| good
2026-01-21T19:00:00.000Z	38 \| good	7.086 \| good	23.264 \| good	23.175 \| good	1.584 \| good	23.544 \| good	0.299 \| good
2026-01-21T20:00:00.000Z	33 \| good	6.284 \| good	23.1 \| good	23.223 \| good	0.728 \| good	15.765 \| good	0.299 \| good
2026-01-21T21:00:00.000Z	33 \| good	5.781 \| good	21.95 \| good	24.243 \| good	0.509 \| good	13.523 \| good	0.299 \| good
2026-01-21T22:00:00.000Z	27 \| good	5.477 \| good	22.914 \| good	29.108 \| good	0.573 \| good	7.653 \| good	0.199 \| good
2026-01-21T23:00:00.000Z	29 \| good	4.363 \| good	19.837 \| good	31.095 \| good	0.84 \| good	3.711 \| good	0.2 \| good
2026-01-22T00:00:00.000Z	31 \| good	3.877 \| good	18.954 \| good	33.044 \| good	0.747 \| good	3.334 \| good	0.2 \| good
2026-01-22T01:00:00.000Z	30 \| good	3.883 \| good	18.898 \| good	32.131 \| good	0.81 \| good	3.557 \| good	0.3 \| good
2026-01-22T02:00:00.000Z	31 \| good	3.983 \| good	20.166 \| good	33.113 \| good	0.722 \| good	4.144 \| good	0.2 \| good
2026-01-22T03:00:00.000Z	30 \| good	4.284 \| good	21.954 \| good	32.11 \| good	0.785 \| good	4.955 \| good	0.2 \| good
2026-01-22T04:00:00.000Z	27 \| good	5.277 \| good	21.062 \| good	26.182 \| good	0.452 \| good	9.484 \| good	0.299 \| good
2026-01-22T05:00:00.000Z	38 \| good	6.582 \| good	21.013 \| good	24.242 \| good	0.635 \| good	10.804 \| good	0.299 \| good
2026-01-22T06:00:00.000Z	38 \| good	6.555 \| good	20.982 \| good	25.194 \| good	0.526 \| good	7.222 \| good	0.299 \| good
2026-01-22T07:00:00.000Z	27 \| good	4.571 \| good	15.953 \| good	24.165 \| good	0.563 \| good	6.626 \| good	0.2 \| good
2026-01-22T08:00:00.000Z	22 \| good	4.085 \| good	16.131 \| good	19.29 \| good	0.778 \| good	7.462 \| good	0.299 \| good
2026-01-22T09:00:00.000Z	22 \| good	4.087 \| good	14.961 \| good	19.245 \| good	0.821 \| good	10.418 \| good	0.299 \| good
2026-01-22T10:00:00.000Z	22 \| good	4.383 \| good	14.014 \| good	17.179 \| good	0.832 \| good	11.497 \| good	0.2 \| good
2026-01-22T11:00:00.000Z	22 \| good	4.293 \| good	14.413 \| good	17.18 \| good	0.588 \| good	14.098 \| good	0.201 \| good
2026-01-22T12:00:00.000Z	27 \| good	4.591 \| good	14.359 \| good	16.192 \| good	0.762 \| good	13.783 \| good	0.201 \| good
2026-01-22T13:00:00.000Z	27 \| good	4.994 \| good	14.182 \| good	9.31 \| good	0.977 \| good	14.945 \| good	0.3 \| good
2026-01-22T14:00:00.000Z	27 \| good	5.389 \| good	15.011 \| good	14.121 \| good	1.294 \| good	15.706 \| good	0.302 \| good
2026-01-22T15:00:00.000Z	33 \| good	5.59 \| good	16.163 \| good	12.16 \| good	1.902 \| good	14.071 \| good	0.302 \| good
2026-01-22T16:00:00.000Z	33 \| good	5.77 \| good	20.926 \| good	14.109 \| good	2.135 \| good	13.721 \| good	0.302 \| good
2026-01-22T17:00:00.000Z	27 \| good	5.406 \| good	20.193 \| good	17.147 \| good	1.709 \| good	10.997 \| good	0.301 \| good
2026-01-22T18:00:00.000Z	27 \| good	4.984 \| good	19.01 \| good	22.141 \| good	0.728 \| good	6.17 \| good	0.3 \| good
2026-01-22T19:00:00.000Z	27 \| good	4.687 \| good	18.012 \| good	26.151 \| good	0.707 \| good	3.898 \| good	0.2 \| good
2026-01-22T20:00:00.000Z	28 \| good	4.586 \| good	18.982 \| good	30.112 \| good	0.703 \| good	3.453 \| good	0.2 \| good
2026-01-22T21:00:00.000Z	31 \| good	4.584 \| good	19.953 \| good	34.036 \| good	0.712 \| good	3.099 \| good	0.2 \| good
2026-01-22T22:00:00.000Z	31 \| good	4.484 \| good	20.872 \| good	34.068 \| good	0.64 \| good	2.478 \| good	0.101 \| good
2026-01-22T23:00:00.000Z	31 \| good	4.482 \| good	20.957 \| good	34.068 \| good	0.701 \| good	2.252 \| good	0.101 \| good
2026-01-23T00:00:00.000Z	29 \| good	4.485 \| good	20.913 \| good	31.122 \| good	0.568 \| good	3.061 \| good	0.299 \| good
2026-01-23T01:00:00.000Z	27 \| good	4.779 \| good	21.999 \| good	28.206 \| good	0.668 \| good	5.549 \| good	0.299 \| good
2026-01-23T02:00:00.000Z	27 \| good	4.79 \| good	22.131 \| good	28.181 \| good	0.797 \| good	6.544 \| good	0.2 \| good
2026-01-23T03:00:00.000Z	27 \| good	4.987 \| good	21.972 \| good	28.137 \| good	0.807 \| good	7.967 \| good	0.299 \| good
2026-01-23T04:00:00.000Z	27 \| good	5.389 \| good	22.074 \| good	25.082 \| good	0.807 \| good	6.217 \| good	0.201 \| good
2026-01-23T05:00:00.000Z	27 \| good	5.321 \| good	22.157 \| good	26.015 \| good	0.573 \| good	5.404 \| good	0.201 \| good
2026-01-23T06:00:00.000Z	27 \| good	5.017 \| good	19.163 \| good	24.137 \| good	0.606 \| good	3.388 \| good	0.201 \| good
2026-01-23T07:00:00.000Z	28 \| good	4.995 \| good	19.076 \| good	30.072 \| good	0.778 \| good	3.126 \| good	0.101 \| good
2026-01-23T08:00:00.000Z	28 \| good	5 \| good	18.994 \| good	30.103 \| good	0.356 \| good	2.457 \| good	0.101 \| good
2026-01-23T09:00:00.000Z	28 \| good	4.003 \| good	13.043 \| good	30.112 \| good	0.356 \| good	2.143 \| good	0.1 \| good
2026-01-23T10:00:00.000Z	28 \| good	4.003 \| good	13.043 \| good	30.112 \| good	0.356 \| good	2.143 \| good	0.1 \| good
2026-01-23T11:00:00.000Z	31 \| good	4.606 \| good	20.006 \| good	32.513 \| good	0.345 \| good	3.196 \| good	0.167 \| good
2026-01-23T12:00:00.000Z	54 \| moderate	11.289 \| good	49.898 \| good	35.38 \| good	0.33 \| good	2.654 \| good	0.163 \| good
2026-01-23T13:00:00.000Z	31 \| good	4.045 \| good	17.909 \| good	32.53 \| good	0.344 \| good	2.626 \| good	0.165 \| good
2026-01-23T14:00:00.000Z	28 \| good	5.412 \| good	23.036 \| good	29.527 \| good	0.358 \| good	2.598 \| good	0.167 \| good
2026-01-23T15:00:00.000Z	27 \| good	5.301 \| good	22.897 \| good	27.413 \| good	0.371 \| good	2.57 \| good	0.168 \| good
2026-01-23T16:00:00.000Z	27 \| good	4.283 \| good	18.897 \| good	28.791 \| good	0.366 \| good	2.171 \| good	0.167 \| good
2026-01-23T17:00:00.000Z	33 \| good	6.331 \| good	27.947 \| good	27.817 \| good	0.361 \| good	1.772 \| good	0.166 \| good
2026-01-23T18:00:00.000Z	33 \| good	6.062 \| good	26.904 \| good	28.873 \| good	0.356 \| good	1.373 \| good	0.166 \| good
2026-01-23T19:00:00.000Z	33 \| good	6.153 \| good	27.044 \| good	28.424 \| good	0.367 \| good	1.344 \| good	0.165 \| good
2026-01-23T20:00:00.000Z	38 \| good	6.773 \| good	29.934 \| good	26.472 \| good	0.379 \| good	1.316 \| good	0.165 \| good
2026-01-23T21:00:00.000Z	33 \| good	6.36 \| good	28.642 \| good	27.489 \| good	0.39 \| good	1.288 \| good	0.164 \| good
2026-01-23T22:00:00.000Z	33 \| good	5.519 \| good	23.893 \| good	30.004 \| good	0.384 \| good	1.692 \| good	0.164 \| good
2026-01-23T23:00:00.000Z	33 \| good	5.621 \| good	24.011 \| good	29.106 \| good	0.378 \| good	2.095 \| good	0.164 \| good
2026-01-24T00:00:00.000Z	27 \| good	4.484 \| good	19.129 \| good	28.708 \| good	0.372 \| good	2.499 \| good	0.164 \| good
2026-01-24T01:00:00.000Z	28 \| good	4.596 \| good	19.969 \| good	29.554 \| good	0.358 \| good	2.629 \| good	0.163 \| good
2026-01-24T02:00:00.000Z	33 \| good	5.599 \| good	23.958 \| good	27.927 \| good	0.344 \| good	2.759 \| good	0.162 \| good
2026-01-24T03:00:00.000Z	27 \| good	5.032 \| good	21.958 \| good	25.792 \| good	0.33 \| good	2.89 \| good	0.161 \| good
2026-01-24T04:00:00.000Z	38 \| good	6.641 \| good	29.886 \| good	24.315 \| good	0.312 \| good	2.828 \| good	0.16 \| good
2026-01-24T05:00:00.000Z	49 \| good	8.774 \| good	38.01 \| good	22.434 \| good	0.294 \| good	2.767 \| good	0.158 \| good
2026-01-24T06:00:00.000Z	38 \| good	7.416 \| good	32.879 \| good	22.184 \| good	0.276 \| good	2.706 \| good	0.157 \| good
2026-01-24T07:00:00.000Z	38 \| good	7.319 \| good	32.054 \| good	26.356 \| good	0.267 \| good	2.666 \| good	0.157 \| good
2026-01-24T08:00:00.000Z	38 \| good	6.981 \| good	30.897 \| good	25.643 \| good	0.259 \| good	2.625 \| good	0.156 \| good
2026-01-24T09:00:00.000Z	33 \| good	5.953 \| good	26.805 \| good	28.353 \| good	0.251 \| good	2.585 \| good	0.156 \| good
2026-01-24T10:00:00.000Z	27 \| good	4.693 \| good	20.879 \| good	27.395 \| good	0.252 \| good	2.677 \| good	0.157 \| good
2026-01-24T11:00:00.000Z	24 \| good	3.729 \| good	16.05 \| good	26.368 \| good	0.254 \| good	2.768 \| good	0.157 \| good
2026-01-24T12:00:00.000Z	52 \| moderate	10.15 \| good	44.937 \| good	26.382 \| good	0.255 \| good	2.86 \| good	0.157 \| good
2026-01-24T13:00:00.000Z	27 \| good	4.844 \| good	20.966 \| good	25.823 \| good	0.284 \| good	3.429 \| good	0.163 \| good
2026-01-24T14:00:00.000Z	38 \| good	6.848 \| good	30.058 \| good	22.128 \| good	0.312 \| good	3.997 \| good	0.169 \| good
2026-01-24T15:00:00.000Z	38 \| good	6.709 \| good	29.94 \| good	20.77 \| good	0.341 \| good	4.566 \| good	0.175 \| good
2026-01-24T16:00:00.000Z	38 \| good	7.104 \| good	31.866 \| good	22.27 \| good	0.405 \| good	3.848 \| good	0.173 \| good
2026-01-24T17:00:00.000Z	49 \| good	9.274 \| good	41.072 \| good	23.728 \| good	0.469 \| good	3.129 \| good	0.171 \| good
2026-01-24T18:00:00.000Z	49 \| good	8.948 \| good	39.179 \| good	25.734 \| good	0.533 \| good	2.411 \| good	0.17 \| good
2026-01-24T19:00:00.000Z	52 \| moderate	10.178 \| good	44.997 \| good	25.003 \| good	0.553 \| good	2.356 \| good	0.168 \| good
2026-01-24T20:00:00.000Z	52 \| moderate	9.749 \| good	43.091 \| good	23.447 \| good	0.572 \| good	2.302 \| good	0.166 \| good
2026-01-24T21:00:00.000Z	44 \| good	7.816 \| good	34.041 \| good	24.019 \| good	0.591 \| good	2.247 \| good	0.164 \| good
2026-01-24T22:00:00.000Z	38 \| good	7.278 \| good	32.027 \| good	25.736 \| good	0.586 \| good	3.162 \| good	0.165 \| good
2026-01-24T23:00:00.000Z	49 \| good	9.395 \| good	42.005 \| good	24.928 \| good	0.58 \| good	4.077 \| good	0.167 \| good
2026-01-25T00:00:00.000Z	33 \| good	6.286 \| good	28.025 \| good	27.408 \| good	0.575 \| good	4.992 \| good	0.169 \| good
2026-01-25T01:00:00.000Z	38 \| good	6.957 \| good	30.996 \| good	24.43 \| good	0.652 \| good	7.681 \| good	0.193 \| good
2026-01-25T02:00:00.000Z	38 \| good	7.34 \| good	32.14 \| good	22.091 \| good	0.73 \| good	10.371 \| good	0.217 \| good
2026-01-25T03:00:00.000Z	52 \| moderate	9.564 \| good	42.962 \| good	19.405 \| good	0.808 \| good	13.061 \| good	0.241 \| good
2026-01-25T04:00:00.000Z	58 \| moderate	13.327 \| fine	60.709 \| fine	17.288 \| good	0.759 \| good	14.122 \| good	0.25 \| good
2026-01-25T05:00:00.000Z	66 \| moderate	17.055 \| fine	74.986 \| fine	13.773 \| good	0.709 \| good	15.183 \| good	0.26 \| good
2026-01-25T06:00:00.000Z	54 \| moderate	10.87 \| good	11.256 \| good	17.783 \| good	0.649 \| good	16.136 \| good	0.269 \| good
2026-01-25T07:00:00.000Z	60 \| moderate	13.751 \| fine	62.644 \| fine	13.783 \| good	0.598 \| good	15.056 \| good	0.257 \| good
2026-01-25T08:00:00.000Z	54 \| moderate	11.264 \| good	49.84 \| good	20.237 \| good	0.537 \| good	13.868 \| good	0.245 \| good
2026-01-25T09:00:00.000Z	49 \| good	9.258 \| good	40.83 \| good	21.621 \| good	0.476 \| good	12.681 \| good	0.233 \| good
2026-01-25T10:00:00.000Z	44 \| good	7.784 \| good	33.981 \| good	18.307 \| good	0.463 \| good	11.901 \| good	0.223 \| good

Fort Collins

Empower business decisions with accurate air quality data

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

0.11ppm

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

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 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 04:00:00, 2026-01-22.

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 11:00:00 on 2026-01-22.

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 28.

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 4.003 μg/m³.

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

Fort Collins, Colorado currently has a PM₁₀ concentration of 13.043 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 0.1 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 0.356 ppb.

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

Fort Collins, Colorado currently has an ozone (O₃) concentration of 30.112 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 2.143 ppb.

Certified

APIs

Refund Policy

Historical Climate Data

Terms & Conditions

Refund Policy

Terms & Conditions

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-01-21T11:00:00.000Z	22 \| good	3.798 \| good	8.091 \| good	20.172 \| good	0.565 \| good	16.605 \| good	0.101 \| good
2026-01-21T12:00:00.000Z	22 \| good	3.909 \| good	7.319 \| good	20.151 \| good	0.629 \| good	19.02 \| good	0.2 \| good
2026-01-21T13:00:00.000Z	20 \| good	1.461 \| good	6.253 \| good	20.138 \| good	0.777 \| good	21.44 \| good	0.201 \| good
2026-01-21T14:00:00.000Z	19 \| good	1.467 \| good	7.382 \| good	17.201 \| good	1.138 \| good	19.601 \| good	0.3 \| good
2026-01-21T15:00:00.000Z	52 \| moderate	9.711 \| good	10.186 \| good	14.202 \| good	1.319 \| good	15.188 \| good	0.501 \| good
2026-01-21T16:00:00.000Z	49 \| good	8.766 \| good	14.532 \| good	14.169 \| good	1.899 \| good	23.038 \| good	0.403 \| good
2026-01-21T17:00:00.000Z	49 \| good	8.57 \| good	19.389 \| good	17.109 \| good	1.962 \| good	26.224 \| good	0.4 \| good
2026-01-21T18:00:00.000Z	44 \| good	8.353 \| good	24.436 \| good	19.105 \| good	1.483 \| good	26.202 \| good	0.301 \| good
2026-01-21T19:00:00.000Z	38 \| good	7.086 \| good	23.264 \| good	23.175 \| good	1.584 \| good	23.544 \| good	0.299 \| good
2026-01-21T20:00:00.000Z	33 \| good	6.284 \| good	23.1 \| good	23.223 \| good	0.728 \| good	15.765 \| good	0.299 \| good
2026-01-21T21:00:00.000Z	33 \| good	5.781 \| good	21.95 \| good	24.243 \| good	0.509 \| good	13.523 \| good	0.299 \| good
2026-01-21T22:00:00.000Z	27 \| good	5.477 \| good	22.914 \| good	29.108 \| good	0.573 \| good	7.653 \| good	0.199 \| good
2026-01-21T23:00:00.000Z	29 \| good	4.363 \| good	19.837 \| good	31.095 \| good	0.84 \| good	3.711 \| good	0.2 \| good
2026-01-22T00:00:00.000Z	31 \| good	3.877 \| good	18.954 \| good	33.044 \| good	0.747 \| good	3.334 \| good	0.2 \| good
2026-01-22T01:00:00.000Z	30 \| good	3.883 \| good	18.898 \| good	32.131 \| good	0.81 \| good	3.557 \| good	0.3 \| good
2026-01-22T02:00:00.000Z	31 \| good	3.983 \| good	20.166 \| good	33.113 \| good	0.722 \| good	4.144 \| good	0.2 \| good
2026-01-22T03:00:00.000Z	30 \| good	4.284 \| good	21.954 \| good	32.11 \| good	0.785 \| good	4.955 \| good	0.2 \| good
2026-01-22T04:00:00.000Z	27 \| good	5.277 \| good	21.062 \| good	26.182 \| good	0.452 \| good	9.484 \| good	0.299 \| good
2026-01-22T05:00:00.000Z	38 \| good	6.582 \| good	21.013 \| good	24.242 \| good	0.635 \| good	10.804 \| good	0.299 \| good
2026-01-22T06:00:00.000Z	38 \| good	6.555 \| good	20.982 \| good	25.194 \| good	0.526 \| good	7.222 \| good	0.299 \| good
2026-01-22T07:00:00.000Z	27 \| good	4.571 \| good	15.953 \| good	24.165 \| good	0.563 \| good	6.626 \| good	0.2 \| good
2026-01-22T08:00:00.000Z	22 \| good	4.085 \| good	16.131 \| good	19.29 \| good	0.778 \| good	7.462 \| good	0.299 \| good
2026-01-22T09:00:00.000Z	22 \| good	4.087 \| good	14.961 \| good	19.245 \| good	0.821 \| good	10.418 \| good	0.299 \| good
2026-01-22T10:00:00.000Z	22 \| good	4.383 \| good	14.014 \| good	17.179 \| good	0.832 \| good	11.497 \| good	0.2 \| good
2026-01-22T11:00:00.000Z	22 \| good	4.293 \| good	14.413 \| good	17.18 \| good	0.588 \| good	14.098 \| good	0.201 \| good
2026-01-22T12:00:00.000Z	27 \| good	4.591 \| good	14.359 \| good	16.192 \| good	0.762 \| good	13.783 \| good	0.201 \| good
2026-01-22T13:00:00.000Z	27 \| good	4.994 \| good	14.182 \| good	9.31 \| good	0.977 \| good	14.945 \| good	0.3 \| good
2026-01-22T14:00:00.000Z	27 \| good	5.389 \| good	15.011 \| good	14.121 \| good	1.294 \| good	15.706 \| good	0.302 \| good
2026-01-22T15:00:00.000Z	33 \| good	5.59 \| good	16.163 \| good	12.16 \| good	1.902 \| good	14.071 \| good	0.302 \| good
2026-01-22T16:00:00.000Z	33 \| good	5.77 \| good	20.926 \| good	14.109 \| good	2.135 \| good	13.721 \| good	0.302 \| good
2026-01-22T17:00:00.000Z	27 \| good	5.406 \| good	20.193 \| good	17.147 \| good	1.709 \| good	10.997 \| good	0.301 \| good
2026-01-22T18:00:00.000Z	27 \| good	4.984 \| good	19.01 \| good	22.141 \| good	0.728 \| good	6.17 \| good	0.3 \| good
2026-01-22T19:00:00.000Z	27 \| good	4.687 \| good	18.012 \| good	26.151 \| good	0.707 \| good	3.898 \| good	0.2 \| good
2026-01-22T20:00:00.000Z	28 \| good	4.586 \| good	18.982 \| good	30.112 \| good	0.703 \| good	3.453 \| good	0.2 \| good
2026-01-22T21:00:00.000Z	31 \| good	4.584 \| good	19.953 \| good	34.036 \| good	0.712 \| good	3.099 \| good	0.2 \| good
2026-01-22T22:00:00.000Z	31 \| good	4.484 \| good	20.872 \| good	34.068 \| good	0.64 \| good	2.478 \| good	0.101 \| good
2026-01-22T23:00:00.000Z	31 \| good	4.482 \| good	20.957 \| good	34.068 \| good	0.701 \| good	2.252 \| good	0.101 \| good
2026-01-23T00:00:00.000Z	29 \| good	4.485 \| good	20.913 \| good	31.122 \| good	0.568 \| good	3.061 \| good	0.299 \| good
2026-01-23T01:00:00.000Z	27 \| good	4.779 \| good	21.999 \| good	28.206 \| good	0.668 \| good	5.549 \| good	0.299 \| good
2026-01-23T02:00:00.000Z	27 \| good	4.79 \| good	22.131 \| good	28.181 \| good	0.797 \| good	6.544 \| good	0.2 \| good
2026-01-23T03:00:00.000Z	27 \| good	4.987 \| good	21.972 \| good	28.137 \| good	0.807 \| good	7.967 \| good	0.299 \| good
2026-01-23T04:00:00.000Z	27 \| good	5.389 \| good	22.074 \| good	25.082 \| good	0.807 \| good	6.217 \| good	0.201 \| good
2026-01-23T05:00:00.000Z	27 \| good	5.321 \| good	22.157 \| good	26.015 \| good	0.573 \| good	5.404 \| good	0.201 \| good
2026-01-23T06:00:00.000Z	27 \| good	5.017 \| good	19.163 \| good	24.137 \| good	0.606 \| good	3.388 \| good	0.201 \| good
2026-01-23T07:00:00.000Z	28 \| good	4.995 \| good	19.076 \| good	30.072 \| good	0.778 \| good	3.126 \| good	0.101 \| good
2026-01-23T08:00:00.000Z	28 \| good	5 \| good	18.994 \| good	30.103 \| good	0.356 \| good	2.457 \| good	0.101 \| good
2026-01-23T09:00:00.000Z	28 \| good	4.003 \| good	13.043 \| good	30.112 \| good	0.356 \| good	2.143 \| good	0.1 \| good
2026-01-23T10:00:00.000Z	28 \| good	4.003 \| good	13.043 \| good	30.112 \| good	0.356 \| good	2.143 \| good	0.1 \| good
2026-01-23T11:00:00.000Z	31 \| good	4.606 \| good	20.006 \| good	32.513 \| good	0.345 \| good	3.196 \| good	0.167 \| good
2026-01-23T12:00:00.000Z	54 \| moderate	11.289 \| good	49.898 \| good	35.38 \| good	0.33 \| good	2.654 \| good	0.163 \| good
2026-01-23T13:00:00.000Z	31 \| good	4.045 \| good	17.909 \| good	32.53 \| good	0.344 \| good	2.626 \| good	0.165 \| good
2026-01-23T14:00:00.000Z	28 \| good	5.412 \| good	23.036 \| good	29.527 \| good	0.358 \| good	2.598 \| good	0.167 \| good
2026-01-23T15:00:00.000Z	27 \| good	5.301 \| good	22.897 \| good	27.413 \| good	0.371 \| good	2.57 \| good	0.168 \| good
2026-01-23T16:00:00.000Z	27 \| good	4.283 \| good	18.897 \| good	28.791 \| good	0.366 \| good	2.171 \| good	0.167 \| good
2026-01-23T17:00:00.000Z	33 \| good	6.331 \| good	27.947 \| good	27.817 \| good	0.361 \| good	1.772 \| good	0.166 \| good
2026-01-23T18:00:00.000Z	33 \| good	6.062 \| good	26.904 \| good	28.873 \| good	0.356 \| good	1.373 \| good	0.166 \| good
2026-01-23T19:00:00.000Z	33 \| good	6.153 \| good	27.044 \| good	28.424 \| good	0.367 \| good	1.344 \| good	0.165 \| good
2026-01-23T20:00:00.000Z	38 \| good	6.773 \| good	29.934 \| good	26.472 \| good	0.379 \| good	1.316 \| good	0.165 \| good
2026-01-23T21:00:00.000Z	33 \| good	6.36 \| good	28.642 \| good	27.489 \| good	0.39 \| good	1.288 \| good	0.164 \| good
2026-01-23T22:00:00.000Z	33 \| good	5.519 \| good	23.893 \| good	30.004 \| good	0.384 \| good	1.692 \| good	0.164 \| good
2026-01-23T23:00:00.000Z	33 \| good	5.621 \| good	24.011 \| good	29.106 \| good	0.378 \| good	2.095 \| good	0.164 \| good
2026-01-24T00:00:00.000Z	27 \| good	4.484 \| good	19.129 \| good	28.708 \| good	0.372 \| good	2.499 \| good	0.164 \| good
2026-01-24T01:00:00.000Z	28 \| good	4.596 \| good	19.969 \| good	29.554 \| good	0.358 \| good	2.629 \| good	0.163 \| good
2026-01-24T02:00:00.000Z	33 \| good	5.599 \| good	23.958 \| good	27.927 \| good	0.344 \| good	2.759 \| good	0.162 \| good
2026-01-24T03:00:00.000Z	27 \| good	5.032 \| good	21.958 \| good	25.792 \| good	0.33 \| good	2.89 \| good	0.161 \| good
2026-01-24T04:00:00.000Z	38 \| good	6.641 \| good	29.886 \| good	24.315 \| good	0.312 \| good	2.828 \| good	0.16 \| good
2026-01-24T05:00:00.000Z	49 \| good	8.774 \| good	38.01 \| good	22.434 \| good	0.294 \| good	2.767 \| good	0.158 \| good
2026-01-24T06:00:00.000Z	38 \| good	7.416 \| good	32.879 \| good	22.184 \| good	0.276 \| good	2.706 \| good	0.157 \| good
2026-01-24T07:00:00.000Z	38 \| good	7.319 \| good	32.054 \| good	26.356 \| good	0.267 \| good	2.666 \| good	0.157 \| good
2026-01-24T08:00:00.000Z	38 \| good	6.981 \| good	30.897 \| good	25.643 \| good	0.259 \| good	2.625 \| good	0.156 \| good
2026-01-24T09:00:00.000Z	33 \| good	5.953 \| good	26.805 \| good	28.353 \| good	0.251 \| good	2.585 \| good	0.156 \| good
2026-01-24T10:00:00.000Z	27 \| good	4.693 \| good	20.879 \| good	27.395 \| good	0.252 \| good	2.677 \| good	0.157 \| good
2026-01-24T11:00:00.000Z	24 \| good	3.729 \| good	16.05 \| good	26.368 \| good	0.254 \| good	2.768 \| good	0.157 \| good
2026-01-24T12:00:00.000Z	52 \| moderate	10.15 \| good	44.937 \| good	26.382 \| good	0.255 \| good	2.86 \| good	0.157 \| good
2026-01-24T13:00:00.000Z	27 \| good	4.844 \| good	20.966 \| good	25.823 \| good	0.284 \| good	3.429 \| good	0.163 \| good
2026-01-24T14:00:00.000Z	38 \| good	6.848 \| good	30.058 \| good	22.128 \| good	0.312 \| good	3.997 \| good	0.169 \| good
2026-01-24T15:00:00.000Z	38 \| good	6.709 \| good	29.94 \| good	20.77 \| good	0.341 \| good	4.566 \| good	0.175 \| good
2026-01-24T16:00:00.000Z	38 \| good	7.104 \| good	31.866 \| good	22.27 \| good	0.405 \| good	3.848 \| good	0.173 \| good
2026-01-24T17:00:00.000Z	49 \| good	9.274 \| good	41.072 \| good	23.728 \| good	0.469 \| good	3.129 \| good	0.171 \| good
2026-01-24T18:00:00.000Z	49 \| good	8.948 \| good	39.179 \| good	25.734 \| good	0.533 \| good	2.411 \| good	0.17 \| good
2026-01-24T19:00:00.000Z	52 \| moderate	10.178 \| good	44.997 \| good	25.003 \| good	0.553 \| good	2.356 \| good	0.168 \| good
2026-01-24T20:00:00.000Z	52 \| moderate	9.749 \| good	43.091 \| good	23.447 \| good	0.572 \| good	2.302 \| good	0.166 \| good
2026-01-24T21:00:00.000Z	44 \| good	7.816 \| good	34.041 \| good	24.019 \| good	0.591 \| good	2.247 \| good	0.164 \| good
2026-01-24T22:00:00.000Z	38 \| good	7.278 \| good	32.027 \| good	25.736 \| good	0.586 \| good	3.162 \| good	0.165 \| good
2026-01-24T23:00:00.000Z	49 \| good	9.395 \| good	42.005 \| good	24.928 \| good	0.58 \| good	4.077 \| good	0.167 \| good
2026-01-25T00:00:00.000Z	33 \| good	6.286 \| good	28.025 \| good	27.408 \| good	0.575 \| good	4.992 \| good	0.169 \| good
2026-01-25T01:00:00.000Z	38 \| good	6.957 \| good	30.996 \| good	24.43 \| good	0.652 \| good	7.681 \| good	0.193 \| good
2026-01-25T02:00:00.000Z	38 \| good	7.34 \| good	32.14 \| good	22.091 \| good	0.73 \| good	10.371 \| good	0.217 \| good
2026-01-25T03:00:00.000Z	52 \| moderate	9.564 \| good	42.962 \| good	19.405 \| good	0.808 \| good	13.061 \| good	0.241 \| good
2026-01-25T04:00:00.000Z	58 \| moderate	13.327 \| fine	60.709 \| fine	17.288 \| good	0.759 \| good	14.122 \| good	0.25 \| good
2026-01-25T05:00:00.000Z	66 \| moderate	17.055 \| fine	74.986 \| fine	13.773 \| good	0.709 \| good	15.183 \| good	0.26 \| good
2026-01-25T06:00:00.000Z	54 \| moderate	10.87 \| good	11.256 \| good	17.783 \| good	0.649 \| good	16.136 \| good	0.269 \| good
2026-01-25T07:00:00.000Z	60 \| moderate	13.751 \| fine	62.644 \| fine	13.783 \| good	0.598 \| good	15.056 \| good	0.257 \| good
2026-01-25T08:00:00.000Z	54 \| moderate	11.264 \| good	49.84 \| good	20.237 \| good	0.537 \| good	13.868 \| good	0.245 \| good
2026-01-25T09:00:00.000Z	49 \| good	9.258 \| good	40.83 \| good	21.621 \| good	0.476 \| good	12.681 \| good	0.233 \| good
2026-01-25T10:00:00.000Z	44 \| good	7.784 \| good	33.981 \| good	18.307 \| good	0.463 \| good	11.901 \| good	0.223 \| 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

How accurate is Colorado, USA air quality data?

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?

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

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

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

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

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?