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

Fort Collins, Colorado currently has a PM10 concentration of 28.745 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 0.711 ppb.

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

Fort Collins, Colorado currently has an ozone (O3) concentration of 34.278 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 10.512 ppb.

Current air quality index in Fort Collins, Colorado today

Name: Live air pollution levels in Fort Collins, Colorado today
Creator: Ambee

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)

3.98 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

28.75 μg/m³

155

255

425

605+

Ozone (O₃)

34.28 ppb

201

201+

Sulfur Dioxide (SO₂)

0.71 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

10.51 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.30 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
2025-10-20T02:00:00.000Z	38 \| good	6.107 \| good	26.89 \| good	22.466 \| good	0.923 \| good	40.179 \| good	0.4 \| good
2025-10-20T03:00:00.000Z	34 \| good	5.237 \| good	24.094 \| good	13.678 \| good	0.806 \| good	35.772 \| good	0.697 \| good
2025-10-20T04:00:00.000Z	62 \| moderate	14.728 \| fine	17.784 \| good	12.869 \| good	0.725 \| good	26.007 \| good	0.696 \| good
2025-10-20T05:00:00.000Z	54 \| moderate	10.664 \| good	17.117 \| good	12.812 \| good	0.637 \| good	33.107 \| good	0.4 \| good
2025-10-20T06:00:00.000Z	49 \| good	9.336 \| good	16.906 \| good	9.924 \| good	0.667 \| good	26.236 \| good	0.398 \| good
2025-10-20T07:00:00.000Z	52 \| moderate	9.609 \| good	17.696 \| good	10.96 \| good	0.795 \| good	16.717 \| good	0.299 \| good
2025-10-20T08:00:00.000Z	49 \| good	9.491 \| good	17.074 \| good	21.685 \| good	0.924 \| good	13.765 \| good	0.2 \| good
2025-10-20T09:00:00.000Z	22 \| good	3.566 \| good	9.002 \| good	21.689 \| good	0.672 \| good	11.587 \| good	0.199 \| good
2025-10-20T10:00:00.000Z	31 \| good	3.575 \| good	9.019 \| good	33.252 \| good	0.617 \| good	11.345 \| good	0.1 \| good
2025-10-20T11:00:00.000Z	35 \| good	2.211 \| good	16.95 \| good	38.2 \| good	0.677 \| good	14.298 \| good	0.1 \| good
2025-10-20T12:00:00.000Z	39 \| good	3.596 \| good	17.988 \| good	42.064 \| good	0.649 \| good	0.942 \| good	0.1 \| good
2025-10-20T13:00:00.000Z	42 \| good	2.494 \| good	12.995 \| good	45.021 \| good	0.459 \| good	1.755 \| good	0.1 \| good
2025-10-20T14:00:00.000Z	44 \| good	1.797 \| good	9.003 \| good	47.883 \| good	0.427 \| good	0.893 \| good	0.101 \| good
2025-10-20T15:00:00.000Z	43 \| good	1.902 \| good	10.974 \| good	45.974 \| good	0.427 \| good	0.778 \| good	0.1 \| good
2025-10-20T16:00:00.000Z	41 \| good	1.905 \| good	10.997 \| good	44.086 \| good	0.566 \| good	0.521 \| good	0.1 \| good
2025-10-20T17:00:00.000Z	38 \| good	2.094 \| good	11.927 \| good	41.158 \| good	0.383 \| good	1.28 \| good	0.1 \| good
2025-10-20T18:00:00.000Z	38 \| good	1.802 \| good	10.937 \| good	41.09 \| good	0.345 \| good	2.154 \| good	0.1 \| good
2025-10-20T19:00:00.000Z	39 \| good	1.499 \| good	7 \| good	42.008 \| good	0.341 \| good	2.099 \| good	0.1 \| good
2025-10-20T20:00:00.000Z	41 \| good	1.399 \| good	7.997 \| good	43.974 \| good	0.334 \| good	2.503 \| good	0.1 \| good
2025-10-20T21:00:00.000Z	42 \| good	1.595 \| good	8.886 \| good	45.026 \| good	0.329 \| good	2.837 \| good	0.1 \| good
2025-10-20T22:00:00.000Z	38 \| good	1.398 \| good	6.953 \| good	41.138 \| good	0.361 \| good	1.625 \| good	0.101 \| good
2025-10-20T23:00:00.000Z	40 \| good	1.199 \| good	5.013 \| good	43.051 \| good	0.361 \| good	1.61 \| good	0.101 \| good
2025-10-21T00:00:00.000Z	44 \| good	1.105 \| good	3.039 \| good	46.993 \| good	0.323 \| good	1.843 \| good	0.101 \| good
2025-10-21T01:00:00.000Z	44 \| good	1.108 \| good	3.073 \| good	46.991 \| good	0.319 \| good	0.703 \| good	0.101 \| good
2025-10-21T02:00:00.000Z	41 \| good	1.206 \| good	3.053 \| good	43.999 \| good	0.538 \| good	1.057 \| good	0.199 \| good
2025-10-21T03:00:00.000Z	33 \| good	6.497 \| good	28.925 \| good	28.589 \| good	0.273 \| good	2.578 \| good	0.113 \| good
2025-10-21T04:00:00.000Z	34 \| good	1.31 \| good	3.151 \| good	37.146 \| good	0.332 \| good	2.613 \| good	0.101 \| good
2025-10-21T05:00:00.000Z	33 \| good	1.313 \| good	3.206 \| good	36.132 \| good	0.923 \| good	2.863 \| good	0.2 \| good
2025-10-21T06:00:00.000Z	31 \| good	2.606 \| good	5.261 \| good	33.147 \| good	0.539 \| good	2.72 \| good	0.2 \| good
2025-10-21T07:00:00.000Z	27 \| good	2.614 \| good	7.169 \| good	29.169 \| good	0.328 \| good	5.355 \| good	0.199 \| good
2025-10-21T08:00:00.000Z	19 \| good	2.61 \| good	7.244 \| good	21.335 \| good	0.861 \| good	4.884 \| good	0.2 \| good
2025-10-21T09:00:00.000Z	19 \| good	2.991 \| good	11.059 \| good	21.307 \| good	0.782 \| good	6.175 \| good	0.2 \| good
2025-10-21T10:00:00.000Z	16 \| good	3.296 \| good	12.04 \| good	14.459 \| good	0.577 \| good	15.536 \| good	0.2 \| good
2025-10-21T11:00:00.000Z	17 \| good	3.301 \| good	11.959 \| good	14.393 \| good	0.689 \| good	17.627 \| good	0.2 \| good
2025-10-21T12:00:00.000Z	20 \| good	3.108 \| good	11.948 \| good	14.367 \| good	0.737 \| good	21.333 \| good	0.2 \| good
2025-10-21T13:00:00.000Z	25 \| good	3.1 \| good	11.955 \| good	15.313 \| good	0.907 \| good	27.315 \| good	0.201 \| good
2025-10-21T14:00:00.000Z	30 \| good	3.488 \| good	13.962 \| good	17.195 \| good	0.884 \| good	31.879 \| good	0.301 \| good
2025-10-21T15:00:00.000Z	22 \| good	3.977 \| good	19.876 \| good	23.072 \| good	1.18 \| good	18.547 \| good	0.202 \| good
2025-10-21T16:00:00.000Z	23 \| good	3.984 \| good	21.901 \| good	25.129 \| good	0.974 \| good	19.798 \| good	0.201 \| good
2025-10-21T17:00:00.000Z	28 \| good	4.769 \| good	29.889 \| good	26.174 \| good	0.829 \| good	21.638 \| good	0.2 \| good
2025-10-21T18:00:00.000Z	29 \| good	4.374 \| good	26.718 \| good	31.049 \| good	0.743 \| good	19.806 \| good	0.2 \| good
2025-10-21T19:00:00.000Z	31 \| good	4.472 \| good	29.703 \| good	33.105 \| good	0.656 \| good	16.984 \| good	0.199 \| good
2025-10-21T20:00:00.000Z	30 \| good	4.795 \| good	28.911 \| good	32.206 \| good	1.044 \| good	15.639 \| good	0.2 \| good
2025-10-21T21:00:00.000Z	31 \| good	4.767 \| good	26.785 \| good	33.278 \| good	0.782 \| good	14.963 \| good	0.2 \| good
2025-10-21T22:00:00.000Z	32 \| good	4.377 \| good	25.951 \| good	35.308 \| good	0.71 \| good	12.702 \| good	0.2 \| good
2025-10-21T23:00:00.000Z	37 \| good	3.891 \| good	23.838 \| good	40.134 \| good	0.625 \| good	8.123 \| good	0.2 \| good
2025-10-22T00:00:00.000Z	31 \| good	3.979 \| good	28.745 \| good	34.278 \| good	0.711 \| good	10.512 \| good	0.299 \| good
2025-10-22T01:00:00.000Z	31 \| good	3.979 \| good	28.745 \| good	34.278 \| good	0.711 \| good	10.512 \| good	0.299 \| good
2025-10-22T02:00:00.000Z	56 \| moderate	12.037 \| good	54.398 \| good	14.729 \| good	0.495 \| good	8.65 \| good	0.17 \| good
2025-10-22T03:00:00.000Z	33 \| good	5.958 \| good	26.498 \| good	13.951 \| good	0.499 \| good	10.423 \| good	0.189 \| good
2025-10-22T04:00:00.000Z	22 \| good	4.487 \| good	19.614 \| good	13.964 \| good	0.444 \| good	10.481 \| good	0.191 \| good
2025-10-22T05:00:00.000Z	38 \| good	6.66 \| good	29.591 \| good	14.258 \| good	0.389 \| good	10.539 \| good	0.194 \| good
2025-10-22T06:00:00.000Z	22 \| good	3.608 \| good	15.728 \| good	14.442 \| good	0.335 \| good	10.597 \| good	0.196 \| good
2025-10-22T07:00:00.000Z	17 \| good	0.654 \| good	2.091 \| good	18.003 \| good	0.293 \| good	9.702 \| good	0.188 \| good
2025-10-22T08:00:00.000Z	19 \| good	0.588 \| good	2.011 \| good	21.289 \| good	0.252 \| good	8.807 \| good	0.179 \| good
2025-10-22T09:00:00.000Z	20 \| good	2.712 \| good	10.955 \| good	21.72 \| good	0.21 \| good	7.911 \| good	0.17 \| good
2025-10-22T10:00:00.000Z	23 \| good	2.096 \| good	8.881 \| good	24.501 \| good	0.199 \| good	7.602 \| good	0.165 \| good
2025-10-22T11:00:00.000Z	21 \| good	2.511 \| good	10.031 \| good	23.184 \| good	0.188 \| good	7.294 \| good	0.159 \| good
2025-10-22T12:00:00.000Z	21 \| good	1.916 \| good	7.902 \| good	22.754 \| good	0.177 \| good	6.985 \| good	0.154 \| good
2025-10-22T13:00:00.000Z	15 \| good	2.374 \| good	9.843 \| good	15.763 \| good	0.207 \| good	6.668 \| good	0.175 \| good
2025-10-22T14:00:00.000Z	22 \| good	3.927 \| good	16.794 \| good	15.523 \| good	0.236 \| good	6.351 \| good	0.196 \| good
2025-10-22T15:00:00.000Z	27 \| good	5.116 \| good	21.915 \| good	18.871 \| good	0.266 \| good	6.034 \| good	0.218 \| good
2025-10-22T16:00:00.000Z	27 \| good	5.43 \| good	23.014 \| good	25.585 \| good	0.348 \| good	4.768 \| good	0.185 \| good
2025-10-22T17:00:00.000Z	28 \| good	4.446 \| good	19.019 \| good	29.783 \| good	0.43 \| good	3.502 \| good	0.152 \| good
2025-10-22T18:00:00.000Z	31 \| good	4.791 \| good	20.94 \| good	33.01 \| good	0.512 \| good	2.236 \| good	0.12 \| good
2025-10-22T19:00:00.000Z	34 \| good	5.789 \| good	25.019 \| good	36.643 \| good	0.528 \| good	2.104 \| good	0.119 \| good
2025-10-22T20:00:00.000Z	37 \| good	5.625 \| good	24.012 \| good	40.19 \| good	0.545 \| good	1.971 \| good	0.117 \| good
2025-10-22T21:00:00.000Z	40 \| good	4.977 \| good	21.042 \| good	42.768 \| good	0.561 \| good	1.839 \| good	0.116 \| good
2025-10-22T22:00:00.000Z	41 \| good	3.173 \| good	13.85 \| good	44.423 \| good	0.542 \| good	2.864 \| good	0.125 \| good
2025-10-22T23:00:00.000Z	38 \| good	6.991 \| good	30.748 \| good	38.757 \| good	0.524 \| good	3.889 \| good	0.134 \| good
2025-10-23T00:00:00.000Z	44 \| good	8.257 \| good	36.644 \| good	29.15 \| good	0.505 \| good	4.914 \| good	0.144 \| good
2025-10-23T01:00:00.000Z	44 \| good	8.181 \| good	35.78 \| good	28.045 \| good	0.584 \| good	6.528 \| good	0.159 \| good
2025-10-23T02:00:00.000Z	66 \| moderate	16.623 \| fine	74.27 \| fine	20.149 \| good	0.664 \| good	8.142 \| good	0.175 \| good
2025-10-23T03:00:00.000Z	49 \| good	9.383 \| good	41.56 \| good	19.416 \| good	0.743 \| good	9.756 \| good	0.19 \| good
2025-10-23T04:00:00.000Z	52 \| moderate	9.828 \| good	43.609 \| good	18.004 \| good	0.661 \| good	9.819 \| good	0.192 \| good
2025-10-23T05:00:00.000Z	49 \| good	8.876 \| good	38.818 \| good	17.014 \| good	0.579 \| good	9.881 \| good	0.194 \| good
2025-10-23T06:00:00.000Z	49 \| good	8.62 \| good	37.836 \| good	15.343 \| good	0.496 \| good	9.944 \| good	0.196 \| good
2025-10-23T07:00:00.000Z	44 \| good	8.159 \| good	35.878 \| good	21.688 \| good	0.436 \| good	9.259 \| good	0.189 \| good
2025-10-23T08:00:00.000Z	21 \| good	1.379 \| good	5.167 \| good	22.529 \| good	0.376 \| good	8.575 \| good	0.182 \| good
2025-10-23T09:00:00.000Z	18 \| good	1.207 \| good	5.01 \| good	18.604 \| good	0.316 \| good	7.891 \| good	0.175 \| good
2025-10-23T10:00:00.000Z	18 \| good	3.41 \| good	14.87 \| good	19.373 \| good	0.286 \| good	7.359 \| good	0.168 \| good
2025-10-23T11:00:00.000Z	33 \| good	5.633 \| good	24.006 \| good	19.262 \| good	0.257 \| good	6.828 \| good	0.161 \| good
2025-10-23T12:00:00.000Z	22 \| good	3.647 \| good	15.758 \| good	16.339 \| good	0.227 \| good	6.296 \| good	0.155 \| good
2025-10-23T13:00:00.000Z	16 \| good	2.783 \| good	11.773 \| good	12.639 \| good	0.24 \| good	6.17 \| good	0.172 \| good
2025-10-23T14:00:00.000Z	22 \| good	4.174 \| good	18.512 \| good	11.806 \| good	0.254 \| good	6.045 \| good	0.188 \| good
2025-10-23T15:00:00.000Z	27 \| good	5.375 \| good	22.858 \| good	17.259 \| good	0.267 \| good	5.919 \| good	0.205 \| good
2025-10-23T16:00:00.000Z	28 \| good	4.913 \| good	20.876 \| good	29.678 \| good	0.351 \| good	4.662 \| good	0.177 \| good
2025-10-23T17:00:00.000Z	31 \| good	2.161 \| good	8.935 \| good	32.871 \| good	0.435 \| good	3.404 \| good	0.15 \| good
2025-10-23T18:00:00.000Z	31 \| good	2.103 \| good	8.872 \| good	32.595 \| good	0.518 \| good	2.146 \| good	0.122 \| good
2025-10-23T19:00:00.000Z	32 \| good	2.815 \| good	11.851 \| good	35.142 \| good	0.484 \| good	1.949 \| good	0.118 \| good
2025-10-23T20:00:00.000Z	32 \| good	4.527 \| good	19.776 \| good	34.759 \| good	0.451 \| good	1.753 \| good	0.113 \| good
2025-10-23T21:00:00.000Z	34 \| good	5.564 \| good	23.908 \| good	36.701 \| good	0.417 \| good	1.556 \| good	0.109 \| good
2025-10-23T22:00:00.000Z	35 \| good	3.73 \| good	15.934 \| good	38.203 \| good	0.43 \| good	2.977 \| good	0.124 \| good
2025-10-23T23:00:00.000Z	33 \| good	3.697 \| good	15.824 \| good	35.861 \| good	0.443 \| good	4.397 \| good	0.138 \| good
2025-10-24T00:00:00.000Z	36 \| good	4.043 \| good	4.482 \| good	39.295 \| good	0.454 \| good	5.781 \| good	0.152 \| good
2025-10-24T01:00:00.000Z	30 \| good	1.501 \| good	5.937 \| good	32.357 \| good	0.479 \| good	6.111 \| 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

0.23ppm

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 01:00:00, 2025-10-21.

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

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 31.

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 3.979 μg/m³.

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

Fort Collins, Colorado currently has a PM₁₀ concentration of 28.745 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 0.711 ppb.

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

Fort Collins, Colorado currently has an ozone (O₃) concentration of 34.278 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 10.512 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-10-20T02:00:00.000Z	38 \| good	6.107 \| good	26.89 \| good	22.466 \| good	0.923 \| good	40.179 \| good	0.4 \| good
2025-10-20T03:00:00.000Z	34 \| good	5.237 \| good	24.094 \| good	13.678 \| good	0.806 \| good	35.772 \| good	0.697 \| good
2025-10-20T04:00:00.000Z	62 \| moderate	14.728 \| fine	17.784 \| good	12.869 \| good	0.725 \| good	26.007 \| good	0.696 \| good
2025-10-20T05:00:00.000Z	54 \| moderate	10.664 \| good	17.117 \| good	12.812 \| good	0.637 \| good	33.107 \| good	0.4 \| good
2025-10-20T06:00:00.000Z	49 \| good	9.336 \| good	16.906 \| good	9.924 \| good	0.667 \| good	26.236 \| good	0.398 \| good
2025-10-20T07:00:00.000Z	52 \| moderate	9.609 \| good	17.696 \| good	10.96 \| good	0.795 \| good	16.717 \| good	0.299 \| good
2025-10-20T08:00:00.000Z	49 \| good	9.491 \| good	17.074 \| good	21.685 \| good	0.924 \| good	13.765 \| good	0.2 \| good
2025-10-20T09:00:00.000Z	22 \| good	3.566 \| good	9.002 \| good	21.689 \| good	0.672 \| good	11.587 \| good	0.199 \| good
2025-10-20T10:00:00.000Z	31 \| good	3.575 \| good	9.019 \| good	33.252 \| good	0.617 \| good	11.345 \| good	0.1 \| good
2025-10-20T11:00:00.000Z	35 \| good	2.211 \| good	16.95 \| good	38.2 \| good	0.677 \| good	14.298 \| good	0.1 \| good
2025-10-20T12:00:00.000Z	39 \| good	3.596 \| good	17.988 \| good	42.064 \| good	0.649 \| good	0.942 \| good	0.1 \| good
2025-10-20T13:00:00.000Z	42 \| good	2.494 \| good	12.995 \| good	45.021 \| good	0.459 \| good	1.755 \| good	0.1 \| good
2025-10-20T14:00:00.000Z	44 \| good	1.797 \| good	9.003 \| good	47.883 \| good	0.427 \| good	0.893 \| good	0.101 \| good
2025-10-20T15:00:00.000Z	43 \| good	1.902 \| good	10.974 \| good	45.974 \| good	0.427 \| good	0.778 \| good	0.1 \| good
2025-10-20T16:00:00.000Z	41 \| good	1.905 \| good	10.997 \| good	44.086 \| good	0.566 \| good	0.521 \| good	0.1 \| good
2025-10-20T17:00:00.000Z	38 \| good	2.094 \| good	11.927 \| good	41.158 \| good	0.383 \| good	1.28 \| good	0.1 \| good
2025-10-20T18:00:00.000Z	38 \| good	1.802 \| good	10.937 \| good	41.09 \| good	0.345 \| good	2.154 \| good	0.1 \| good
2025-10-20T19:00:00.000Z	39 \| good	1.499 \| good	7 \| good	42.008 \| good	0.341 \| good	2.099 \| good	0.1 \| good
2025-10-20T20:00:00.000Z	41 \| good	1.399 \| good	7.997 \| good	43.974 \| good	0.334 \| good	2.503 \| good	0.1 \| good
2025-10-20T21:00:00.000Z	42 \| good	1.595 \| good	8.886 \| good	45.026 \| good	0.329 \| good	2.837 \| good	0.1 \| good
2025-10-20T22:00:00.000Z	38 \| good	1.398 \| good	6.953 \| good	41.138 \| good	0.361 \| good	1.625 \| good	0.101 \| good
2025-10-20T23:00:00.000Z	40 \| good	1.199 \| good	5.013 \| good	43.051 \| good	0.361 \| good	1.61 \| good	0.101 \| good
2025-10-21T00:00:00.000Z	44 \| good	1.105 \| good	3.039 \| good	46.993 \| good	0.323 \| good	1.843 \| good	0.101 \| good
2025-10-21T01:00:00.000Z	44 \| good	1.108 \| good	3.073 \| good	46.991 \| good	0.319 \| good	0.703 \| good	0.101 \| good
2025-10-21T02:00:00.000Z	41 \| good	1.206 \| good	3.053 \| good	43.999 \| good	0.538 \| good	1.057 \| good	0.199 \| good
2025-10-21T03:00:00.000Z	33 \| good	6.497 \| good	28.925 \| good	28.589 \| good	0.273 \| good	2.578 \| good	0.113 \| good
2025-10-21T04:00:00.000Z	34 \| good	1.31 \| good	3.151 \| good	37.146 \| good	0.332 \| good	2.613 \| good	0.101 \| good
2025-10-21T05:00:00.000Z	33 \| good	1.313 \| good	3.206 \| good	36.132 \| good	0.923 \| good	2.863 \| good	0.2 \| good
2025-10-21T06:00:00.000Z	31 \| good	2.606 \| good	5.261 \| good	33.147 \| good	0.539 \| good	2.72 \| good	0.2 \| good
2025-10-21T07:00:00.000Z	27 \| good	2.614 \| good	7.169 \| good	29.169 \| good	0.328 \| good	5.355 \| good	0.199 \| good
2025-10-21T08:00:00.000Z	19 \| good	2.61 \| good	7.244 \| good	21.335 \| good	0.861 \| good	4.884 \| good	0.2 \| good
2025-10-21T09:00:00.000Z	19 \| good	2.991 \| good	11.059 \| good	21.307 \| good	0.782 \| good	6.175 \| good	0.2 \| good
2025-10-21T10:00:00.000Z	16 \| good	3.296 \| good	12.04 \| good	14.459 \| good	0.577 \| good	15.536 \| good	0.2 \| good
2025-10-21T11:00:00.000Z	17 \| good	3.301 \| good	11.959 \| good	14.393 \| good	0.689 \| good	17.627 \| good	0.2 \| good
2025-10-21T12:00:00.000Z	20 \| good	3.108 \| good	11.948 \| good	14.367 \| good	0.737 \| good	21.333 \| good	0.2 \| good
2025-10-21T13:00:00.000Z	25 \| good	3.1 \| good	11.955 \| good	15.313 \| good	0.907 \| good	27.315 \| good	0.201 \| good
2025-10-21T14:00:00.000Z	30 \| good	3.488 \| good	13.962 \| good	17.195 \| good	0.884 \| good	31.879 \| good	0.301 \| good
2025-10-21T15:00:00.000Z	22 \| good	3.977 \| good	19.876 \| good	23.072 \| good	1.18 \| good	18.547 \| good	0.202 \| good
2025-10-21T16:00:00.000Z	23 \| good	3.984 \| good	21.901 \| good	25.129 \| good	0.974 \| good	19.798 \| good	0.201 \| good
2025-10-21T17:00:00.000Z	28 \| good	4.769 \| good	29.889 \| good	26.174 \| good	0.829 \| good	21.638 \| good	0.2 \| good
2025-10-21T18:00:00.000Z	29 \| good	4.374 \| good	26.718 \| good	31.049 \| good	0.743 \| good	19.806 \| good	0.2 \| good
2025-10-21T19:00:00.000Z	31 \| good	4.472 \| good	29.703 \| good	33.105 \| good	0.656 \| good	16.984 \| good	0.199 \| good
2025-10-21T20:00:00.000Z	30 \| good	4.795 \| good	28.911 \| good	32.206 \| good	1.044 \| good	15.639 \| good	0.2 \| good
2025-10-21T21:00:00.000Z	31 \| good	4.767 \| good	26.785 \| good	33.278 \| good	0.782 \| good	14.963 \| good	0.2 \| good
2025-10-21T22:00:00.000Z	32 \| good	4.377 \| good	25.951 \| good	35.308 \| good	0.71 \| good	12.702 \| good	0.2 \| good
2025-10-21T23:00:00.000Z	37 \| good	3.891 \| good	23.838 \| good	40.134 \| good	0.625 \| good	8.123 \| good	0.2 \| good
2025-10-22T00:00:00.000Z	31 \| good	3.979 \| good	28.745 \| good	34.278 \| good	0.711 \| good	10.512 \| good	0.299 \| good
2025-10-22T01:00:00.000Z	31 \| good	3.979 \| good	28.745 \| good	34.278 \| good	0.711 \| good	10.512 \| good	0.299 \| good
2025-10-22T02:00:00.000Z	56 \| moderate	12.037 \| good	54.398 \| good	14.729 \| good	0.495 \| good	8.65 \| good	0.17 \| good
2025-10-22T03:00:00.000Z	33 \| good	5.958 \| good	26.498 \| good	13.951 \| good	0.499 \| good	10.423 \| good	0.189 \| good
2025-10-22T04:00:00.000Z	22 \| good	4.487 \| good	19.614 \| good	13.964 \| good	0.444 \| good	10.481 \| good	0.191 \| good
2025-10-22T05:00:00.000Z	38 \| good	6.66 \| good	29.591 \| good	14.258 \| good	0.389 \| good	10.539 \| good	0.194 \| good
2025-10-22T06:00:00.000Z	22 \| good	3.608 \| good	15.728 \| good	14.442 \| good	0.335 \| good	10.597 \| good	0.196 \| good
2025-10-22T07:00:00.000Z	17 \| good	0.654 \| good	2.091 \| good	18.003 \| good	0.293 \| good	9.702 \| good	0.188 \| good
2025-10-22T08:00:00.000Z	19 \| good	0.588 \| good	2.011 \| good	21.289 \| good	0.252 \| good	8.807 \| good	0.179 \| good
2025-10-22T09:00:00.000Z	20 \| good	2.712 \| good	10.955 \| good	21.72 \| good	0.21 \| good	7.911 \| good	0.17 \| good
2025-10-22T10:00:00.000Z	23 \| good	2.096 \| good	8.881 \| good	24.501 \| good	0.199 \| good	7.602 \| good	0.165 \| good
2025-10-22T11:00:00.000Z	21 \| good	2.511 \| good	10.031 \| good	23.184 \| good	0.188 \| good	7.294 \| good	0.159 \| good
2025-10-22T12:00:00.000Z	21 \| good	1.916 \| good	7.902 \| good	22.754 \| good	0.177 \| good	6.985 \| good	0.154 \| good
2025-10-22T13:00:00.000Z	15 \| good	2.374 \| good	9.843 \| good	15.763 \| good	0.207 \| good	6.668 \| good	0.175 \| good
2025-10-22T14:00:00.000Z	22 \| good	3.927 \| good	16.794 \| good	15.523 \| good	0.236 \| good	6.351 \| good	0.196 \| good
2025-10-22T15:00:00.000Z	27 \| good	5.116 \| good	21.915 \| good	18.871 \| good	0.266 \| good	6.034 \| good	0.218 \| good
2025-10-22T16:00:00.000Z	27 \| good	5.43 \| good	23.014 \| good	25.585 \| good	0.348 \| good	4.768 \| good	0.185 \| good
2025-10-22T17:00:00.000Z	28 \| good	4.446 \| good	19.019 \| good	29.783 \| good	0.43 \| good	3.502 \| good	0.152 \| good
2025-10-22T18:00:00.000Z	31 \| good	4.791 \| good	20.94 \| good	33.01 \| good	0.512 \| good	2.236 \| good	0.12 \| good
2025-10-22T19:00:00.000Z	34 \| good	5.789 \| good	25.019 \| good	36.643 \| good	0.528 \| good	2.104 \| good	0.119 \| good
2025-10-22T20:00:00.000Z	37 \| good	5.625 \| good	24.012 \| good	40.19 \| good	0.545 \| good	1.971 \| good	0.117 \| good
2025-10-22T21:00:00.000Z	40 \| good	4.977 \| good	21.042 \| good	42.768 \| good	0.561 \| good	1.839 \| good	0.116 \| good
2025-10-22T22:00:00.000Z	41 \| good	3.173 \| good	13.85 \| good	44.423 \| good	0.542 \| good	2.864 \| good	0.125 \| good
2025-10-22T23:00:00.000Z	38 \| good	6.991 \| good	30.748 \| good	38.757 \| good	0.524 \| good	3.889 \| good	0.134 \| good
2025-10-23T00:00:00.000Z	44 \| good	8.257 \| good	36.644 \| good	29.15 \| good	0.505 \| good	4.914 \| good	0.144 \| good
2025-10-23T01:00:00.000Z	44 \| good	8.181 \| good	35.78 \| good	28.045 \| good	0.584 \| good	6.528 \| good	0.159 \| good
2025-10-23T02:00:00.000Z	66 \| moderate	16.623 \| fine	74.27 \| fine	20.149 \| good	0.664 \| good	8.142 \| good	0.175 \| good
2025-10-23T03:00:00.000Z	49 \| good	9.383 \| good	41.56 \| good	19.416 \| good	0.743 \| good	9.756 \| good	0.19 \| good
2025-10-23T04:00:00.000Z	52 \| moderate	9.828 \| good	43.609 \| good	18.004 \| good	0.661 \| good	9.819 \| good	0.192 \| good
2025-10-23T05:00:00.000Z	49 \| good	8.876 \| good	38.818 \| good	17.014 \| good	0.579 \| good	9.881 \| good	0.194 \| good
2025-10-23T06:00:00.000Z	49 \| good	8.62 \| good	37.836 \| good	15.343 \| good	0.496 \| good	9.944 \| good	0.196 \| good
2025-10-23T07:00:00.000Z	44 \| good	8.159 \| good	35.878 \| good	21.688 \| good	0.436 \| good	9.259 \| good	0.189 \| good
2025-10-23T08:00:00.000Z	21 \| good	1.379 \| good	5.167 \| good	22.529 \| good	0.376 \| good	8.575 \| good	0.182 \| good
2025-10-23T09:00:00.000Z	18 \| good	1.207 \| good	5.01 \| good	18.604 \| good	0.316 \| good	7.891 \| good	0.175 \| good
2025-10-23T10:00:00.000Z	18 \| good	3.41 \| good	14.87 \| good	19.373 \| good	0.286 \| good	7.359 \| good	0.168 \| good
2025-10-23T11:00:00.000Z	33 \| good	5.633 \| good	24.006 \| good	19.262 \| good	0.257 \| good	6.828 \| good	0.161 \| good
2025-10-23T12:00:00.000Z	22 \| good	3.647 \| good	15.758 \| good	16.339 \| good	0.227 \| good	6.296 \| good	0.155 \| good
2025-10-23T13:00:00.000Z	16 \| good	2.783 \| good	11.773 \| good	12.639 \| good	0.24 \| good	6.17 \| good	0.172 \| good
2025-10-23T14:00:00.000Z	22 \| good	4.174 \| good	18.512 \| good	11.806 \| good	0.254 \| good	6.045 \| good	0.188 \| good
2025-10-23T15:00:00.000Z	27 \| good	5.375 \| good	22.858 \| good	17.259 \| good	0.267 \| good	5.919 \| good	0.205 \| good
2025-10-23T16:00:00.000Z	28 \| good	4.913 \| good	20.876 \| good	29.678 \| good	0.351 \| good	4.662 \| good	0.177 \| good
2025-10-23T17:00:00.000Z	31 \| good	2.161 \| good	8.935 \| good	32.871 \| good	0.435 \| good	3.404 \| good	0.15 \| good
2025-10-23T18:00:00.000Z	31 \| good	2.103 \| good	8.872 \| good	32.595 \| good	0.518 \| good	2.146 \| good	0.122 \| good
2025-10-23T19:00:00.000Z	32 \| good	2.815 \| good	11.851 \| good	35.142 \| good	0.484 \| good	1.949 \| good	0.118 \| good
2025-10-23T20:00:00.000Z	32 \| good	4.527 \| good	19.776 \| good	34.759 \| good	0.451 \| good	1.753 \| good	0.113 \| good
2025-10-23T21:00:00.000Z	34 \| good	5.564 \| good	23.908 \| good	36.701 \| good	0.417 \| good	1.556 \| good	0.109 \| good
2025-10-23T22:00:00.000Z	35 \| good	3.73 \| good	15.934 \| good	38.203 \| good	0.43 \| good	2.977 \| good	0.124 \| good
2025-10-23T23:00:00.000Z	33 \| good	3.697 \| good	15.824 \| good	35.861 \| good	0.443 \| good	4.397 \| good	0.138 \| good
2025-10-24T00:00:00.000Z	36 \| good	4.043 \| good	4.482 \| good	39.295 \| good	0.454 \| good	5.781 \| good	0.152 \| good
2025-10-24T01:00:00.000Z	30 \| good	1.501 \| good	5.937 \| good	32.357 \| good	0.479 \| good	6.111 \| 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

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?

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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?