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

Fort Collins, Colorado currently has a PM10 concentration of 14.089 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 0.72 ppb.

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

Fort Collins, Colorado currently has an ozone (O3) concentration of 43.928 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 5.479 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 3.601 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)

4.49 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

20.99 μg/m³

155

255

425

605+

Ozone (O₃)

39.02 ppb

201

201+

Sulfur Dioxide (SO₂)

0.74 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

9.28 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.20 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
2026-06-06T14:00:00.000Z	49 \| good	8.953 \| good	21.206 \| good	36.994 \| good	0.729 \| good	8.073 \| good	0.101 \| good
2026-06-06T15:00:00.000Z	49 \| good	9.229 \| good	21.967 \| good	42.892 \| good	0.997 \| good	8.132 \| good	0.101 \| good
2026-06-06T16:00:00.000Z	49 \| good	8.617 \| good	22.328 \| good	46.904 \| good	1.082 \| good	6.838 \| good	0.101 \| good
2026-06-06T17:00:00.000Z	49 \| good	7.739 \| good	23.53 \| good	52.864 \| good	0.952 \| good	5.652 \| good	0.2 \| good
2026-06-06T18:00:00.000Z	54 \| moderate	7.813 \| good	24.127 \| good	55.985 \| fine	1.058 \| good	2.962 \| good	0.2 \| good
2026-06-06T19:00:00.000Z	67 \| moderate	7.402 \| good	25.029 \| good	60.003 \| fine	0.841 \| good	2.727 \| good	0.2 \| good
2026-06-06T20:00:00.000Z	77 \| moderate	6.221 \| good	25.034 \| good	63.009 \| fine	0.703 \| good	2.095 \| good	0.2 \| good
2026-06-06T21:00:00.000Z	77 \| moderate	4.819 \| good	22.005 \| good	63.019 \| fine	0.681 \| good	1.327 \| good	0.1 \| good
2026-06-06T22:00:00.000Z	84 \| moderate	4.015 \| good	19.045 \| good	64.958 \| fine	0.678 \| good	0.952 \| good	0.1 \| good
2026-06-06T23:00:00.000Z	80 \| moderate	3.218 \| good	15.076 \| good	64.001 \| fine	0.748 \| good	0.869 \| good	0.1 \| good
2026-06-07T00:00:00.000Z	80 \| moderate	2.921 \| good	14.144 \| good	63.97 \| fine	0.703 \| good	1.096 \| good	0.1 \| good
2026-06-07T01:00:00.000Z	74 \| moderate	3.013 \| good	16.985 \| good	61.994 \| fine	0.679 \| good	1.488 \| good	0.101 \| good
2026-06-07T02:00:00.000Z	61 \| moderate	3.008 \| good	16.011 \| good	57.994 \| fine	0.722 \| good	2.177 \| good	0.2 \| good
2026-06-07T03:00:00.000Z	51 \| moderate	4.221 \| good	26.107 \| good	55.048 \| fine	0.634 \| good	1.592 \| good	0.199 \| good
2026-06-07T04:00:00.000Z	51 \| moderate	6.086 \| good	44.032 \| good	54.962 \| good	0.731 \| good	1.785 \| good	0.1 \| good
2026-06-07T05:00:00.000Z	48 \| good	6.087 \| good	43.996 \| good	51.982 \| good	0.942 \| good	2.363 \| good	0.1 \| good
2026-06-07T06:00:00.000Z	44 \| good	6.182 \| good	45.822 \| good	47.036 \| good	0.99 \| good	3.579 \| good	0.101 \| good
2026-06-07T07:00:00.000Z	41 \| good	4.883 \| good	31.78 \| good	43.976 \| good	0.754 \| good	4.171 \| good	0.101 \| good
2026-06-07T08:00:00.000Z	38 \| good	4.973 \| good	28.901 \| good	40.94 \| good	0.695 \| good	4.782 \| good	0.1 \| good
2026-06-07T09:00:00.000Z	38 \| good	5.075 \| good	27.996 \| good	40.926 \| good	0.7 \| good	5.111 \| good	0.101 \| good
2026-06-07T10:00:00.000Z	31 \| good	4.671 \| good	24.035 \| good	33.001 \| good	0.699 \| good	8.349 \| good	0.1 \| good
2026-06-07T11:00:00.000Z	29 \| good	4.378 \| good	20.189 \| good	30.985 \| good	0.977 \| good	6.773 \| good	0.1 \| good
2026-06-07T12:00:00.000Z	29 \| good	4.573 \| good	19.066 \| good	30.974 \| good	0.656 \| good	15.172 \| good	0.1 \| good
2026-06-07T13:00:00.000Z	31 \| good	4.792 \| good	19.006 \| good	33.971 \| good	0.701 \| good	14.013 \| good	0.101 \| good
2026-06-07T14:00:00.000Z	32 \| good	4.601 \| good	18.072 \| good	34.989 \| good	0.82 \| good	6.698 \| good	0.2 \| good
2026-06-07T15:00:00.000Z	34 \| good	4.396 \| good	18.154 \| good	36.998 \| good	0.747 \| good	5.936 \| good	0.1 \| good
2026-06-07T16:00:00.000Z	37 \| good	4.204 \| good	17.044 \| good	40.004 \| good	1.077 \| good	5.799 \| good	0.199 \| good
2026-06-07T17:00:00.000Z	43 \| good	3.913 \| good	18.025 \| good	46 \| good	0.725 \| good	3.489 \| good	0.1 \| good
2026-06-07T18:00:00.000Z	46 \| good	3.607 \| good	17.068 \| good	50.045 \| good	0.704 \| good	1.88 \| good	0.1 \| good
2026-06-07T19:00:00.000Z	48 \| good	3.319 \| good	17.137 \| good	52.078 \| good	0.724 \| good	1.375 \| good	0.1 \| good
2026-06-07T20:00:00.000Z	51 \| moderate	3.218 \| good	17.17 \| good	55.05 \| fine	0.702 \| good	0.977 \| good	0.1 \| good
2026-06-07T21:00:00.000Z	54 \| moderate	3.109 \| good	17.044 \| good	56.04 \| fine	0.705 \| good	0.859 \| good	0.1 \| good
2026-06-07T22:00:00.000Z	64 \| moderate	2.927 \| good	17.217 \| good	58.983 \| fine	0.636 \| good	1.053 \| good	0.1 \| good
2026-06-07T23:00:00.000Z	61 \| moderate	3.121 \| good	20.017 \| good	57.979 \| fine	0.678 \| good	2.91 \| good	0.2 \| good
2026-06-08T00:00:00.000Z	50 \| good	3.104 \| good	20.465 \| good	54.015 \| good	0.658 \| good	1.812 \| good	0.2 \| good
2026-06-08T01:00:00.000Z	47 \| good	3.039 \| good	18.254 \| good	51.04 \| good	0.634 \| good	3.658 \| good	0.2 \| good
2026-06-08T02:00:00.000Z	45 \| good	2.731 \| good	14.11 \| good	49.036 \| good	0.675 \| good	1.946 \| good	0.2 \| good
2026-06-08T03:00:00.000Z	137 \| sensitive	49.953 \| moderate	223.64 \| moderate	44.186 \| good	0.114 \| good	4.527 \| good	0.133 \| good
2026-06-08T04:00:00.000Z	44 \| good	2.515 \| good	12.161 \| good	46.96 \| good	0.744 \| good	3.915 \| good	0.2 \| good
2026-06-08T05:00:00.000Z	44 \| good	2.422 \| good	11.188 \| good	46.973 \| good	0.745 \| good	3.333 \| good	0.2 \| good
2026-06-08T06:00:00.000Z	42 \| good	2.734 \| good	12.366 \| good	44.999 \| good	0.748 \| good	1.139 \| good	0.245 \| good
2026-06-08T07:00:00.000Z	40 \| good	2.625 \| good	12.294 \| good	43.011 \| good	0.72 \| good	3.505 \| good	0.226 \| good
2026-06-08T08:00:00.000Z	41 \| good	2.612 \| good	12.161 \| good	43.922 \| good	0.72 \| good	3.631 \| good	0.19 \| good
2026-06-08T09:00:00.000Z	41 \| good	3.299 \| good	17.087 \| good	43.931 \| good	0.743 \| good	6.874 \| good	0.173 \| good
2026-06-08T10:00:00.000Z	43 \| good	3.396 \| good	15.175 \| good	45.885 \| good	0.989 \| good	1.817 \| good	0.154 \| good
2026-06-08T11:00:00.000Z	43 \| good	3.499 \| good	14.327 \| good	45.897 \| good	0.859 \| good	2.936 \| good	0.1 \| good
2026-06-08T12:00:00.000Z	41 \| good	3.601 \| good	14.089 \| good	43.928 \| good	0.72 \| good	5.479 \| good	0.101 \| good
2026-06-08T13:00:00.000Z	36 \| good	4.487 \| good	20.993 \| good	39.016 \| good	0.742 \| good	9.284 \| good	0.2 \| good
2026-06-08T13:00:00.000Z	36 \| good	4.487 \| good	20.993 \| good	39.016 \| good	0.742 \| good	9.284 \| good	0.2 \| good
2026-06-08T13:00:00.000Z	58 \| moderate	13.127 \| fine	59.091 \| fine	31.201 \| good	0.136 \| good	3.353 \| good	0.117 \| good
2026-06-08T14:00:00.000Z	62 \| moderate	15.162 \| fine	67.147 \| fine	34.65 \| good	0.199 \| good	1.682 \| good	0.106 \| good
2026-06-08T15:00:00.000Z	64 \| moderate	15.984 \| fine	71.092 \| fine	38.488 \| good	0.265 \| good	0.986 \| good	0.101 \| good
2026-06-08T16:00:00.000Z	56 \| moderate	12.486 \| fine	56.96 \| fine	44.974 \| good	0.275 \| good	0.709 \| good	0.101 \| good
2026-06-08T17:00:00.000Z	49 \| good	8.787 \| good	38.298 \| good	51.47 \| good	0.261 \| good	0.606 \| good	0.1 \| good
2026-06-08T18:00:00.000Z	54 \| moderate	6.18 \| good	27.111 \| good	55.785 \| fine	0.239 \| good	0.502 \| good	0.101 \| good
2026-06-08T19:00:00.000Z	61 \| moderate	5.133 \| good	21.996 \| good	58.151 \| fine	0.203 \| good	0.466 \| good	0.101 \| good
2026-06-08T20:00:00.000Z	71 \| moderate	4.647 \| good	20.029 \| good	60.671 \| fine	0.173 \| good	0.47 \| good	0.1 \| good
2026-06-08T21:00:00.000Z	67 \| moderate	3.918 \| good	17.106 \| good	59.775 \| fine	0.161 \| good	0.476 \| good	0.101 \| good
2026-06-08T22:00:00.000Z	61 \| moderate	6.835 \| good	30.072 \| good	58.058 \| fine	0.162 \| good	0.539 \| good	0.101 \| good
2026-06-08T23:00:00.000Z	48 \| good	4.136 \| good	18.038 \| good	52.237 \| good	0.179 \| good	0.645 \| good	0.103 \| good
2026-06-09T00:00:00.000Z	49 \| good	2.888 \| good	12.033 \| good	53.387 \| good	0.182 \| good	0.766 \| good	0.105 \| good
2026-06-09T01:00:00.000Z	50 \| good	0.733 \| good	3.029 \| good	54.245 \| good	0.182 \| good	1.064 \| good	0.107 \| good
2026-06-09T02:00:00.000Z	48 \| good	2.022 \| good	8.108 \| good	52.054 \| good	0.198 \| good	1.656 \| good	0.111 \| good
2026-06-09T03:00:00.000Z	39 \| good	2.58 \| good	10.158 \| good	42.292 \| good	0.215 \| good	2.72 \| good	0.119 \| good
2026-06-09T04:00:00.000Z	39 \| good	4.036 \| good	17.936 \| good	41.623 \| good	0.244 \| good	3.464 \| good	0.124 \| good
2026-06-09T05:00:00.000Z	54 \| moderate	10.738 \| good	47.704 \| good	39.232 \| good	0.288 \| good	3.999 \| good	0.128 \| good
2026-06-09T06:00:00.000Z	71 \| moderate	20.255 \| fine	88.637 \| fine	32.344 \| good	0.322 \| good	4.582 \| good	0.133 \| good
2026-06-09T07:00:00.000Z	54 \| moderate	11.135 \| good	49.583 \| good	27.592 \| good	0.329 \| good	5.051 \| good	0.136 \| good
2026-06-09T08:00:00.000Z	54 \| moderate	10.876 \| good	48.338 \| good	26.407 \| good	0.325 \| good	5.479 \| good	0.139 \| good
2026-06-09T09:00:00.000Z	58 \| moderate	13.269 \| fine	59.788 \| fine	26.599 \| good	0.313 \| good	5.932 \| good	0.143 \| good
2026-06-09T10:00:00.000Z	56 \| moderate	11.5 \| good	50.702 \| good	26.732 \| good	0.295 \| good	6.47 \| good	0.144 \| good
2026-06-09T11:00:00.000Z	64 \| moderate	15.61 \| fine	69.205 \| fine	27.138 \| good	0.262 \| good	6.709 \| good	0.144 \| good
2026-06-09T12:00:00.000Z	58 \| moderate	12.527 \| fine	56.71 \| fine	22.899 \| good	0.23 \| good	6.363 \| good	0.144 \| good
2026-06-09T13:00:00.000Z	56 \| moderate	11.946 \| good	53.538 \| good	19.878 \| good	0.198 \| good	4.54 \| good	0.139 \| good
2026-06-09T14:00:00.000Z	52 \| moderate	10.217 \| good	45.53 \| good	28.631 \| good	0.192 \| good	3.068 \| good	0.129 \| good
2026-06-09T15:00:00.000Z	44 \| good	7.66 \| good	33.719 \| good	34.579 \| good	0.192 \| good	2.288 \| good	0.119 \| good
2026-06-09T16:00:00.000Z	44 \| good	4.667 \| good	20.109 \| good	48.494 \| good	0.18 \| good	1.699 \| good	0.111 \| good
2026-06-09T17:00:00.000Z	64 \| moderate	4.552 \| good	19.582 \| good	58.785 \| fine	0.126 \| good	0.727 \| good	0.096 \| good
2026-06-09T18:00:00.000Z	64 \| moderate	5.02 \| good	21.709 \| good	58.878 \| fine	0.088 \| good	0.36 \| good	0.089 \| good
2026-06-09T19:00:00.000Z	71 \| moderate	3.06 \| good	12.173 \| good	61.128 \| fine	0.071 \| good	0.259 \| good	0.086 \| good
2026-06-09T20:00:00.000Z	51 \| moderate	4.47 \| good	19.252 \| good	55.195 \| fine	0.059 \| good	0.215 \| good	0.085 \| good
2026-06-09T21:00:00.000Z	71 \| moderate	20.069 \| fine	88.333 \| fine	53.51 \| good	0.053 \| good	0.203 \| good	0.085 \| good
2026-06-09T22:00:00.000Z	112 \| sensitive	39.639 \| moderate	173.118 \| moderate	53.107 \| good	0.053 \| good	0.212 \| good	0.086 \| good
2026-06-09T23:00:00.000Z	173 \| unhealthy	86.812 \| poor	287.833 \| poor	51.5 \| good	0.056 \| good	0.234 \| good	0.087 \| good
2026-06-10T00:00:00.000Z	191 \| unhealthy	111.986 \| poor	314.049 \| poor	49.506 \| good	0.061 \| good	0.295 \| good	0.088 \| good
2026-06-10T01:00:00.000Z	249 \| vUnhealthy	173.823 \| poor	371.097 \| poor	49.788 \| good	0.068 \| good	0.425 \| good	0.089 \| good
2026-06-10T02:00:00.000Z	165 \| unhealthy	76.112 \| poor	276.338 \| poor	46.693 \| good	0.078 \| good	0.764 \| good	0.091 \| good
2026-06-10T03:00:00.000Z	42 \| good	6.233 \| good	27.779 \| good	45.355 \| good	0.089 \| good	1.384 \| good	0.096 \| good
2026-06-10T04:00:00.000Z	58 \| moderate	13.332 \| fine	59.92 \| fine	46.801 \| good	0.104 \| good	1.993 \| good	0.1 \| good
2026-06-10T05:00:00.000Z	52 \| moderate	9.718 \| good	43.391 \| good	45.561 \| good	0.129 \| good	2.493 \| good	0.105 \| good
2026-06-10T06:00:00.000Z	34 \| good	4.362 \| good	7.174 \| good	37.361 \| good	0.142 \| good	2.628 \| good	0.107 \| good
2026-06-10T07:00:00.000Z	36 \| good	6.163 \| good	27.638 \| good	39.104 \| good	0.141 \| good	2.357 \| good	0.105 \| good
2026-06-10T08:00:00.000Z	33 \| good	5.963 \| good	26.704 \| good	35.627 \| good	0.139 \| good	2.274 \| good	0.105 \| good
2026-06-10T09:00:00.000Z	31 \| good	4.515 \| good	19.812 \| good	34.339 \| good	0.14 \| good	2.248 \| good	0.105 \| good
2026-06-10T10:00:00.000Z	38 \| good	6.916 \| good	30.592 \| good	29.248 \| good	0.142 \| good	2.288 \| good	0.106 \| good
2026-06-10T11:00:00.000Z	52 \| moderate	10.28 \| good	45.331 \| good	30.116 \| good	0.145 \| good	2.511 \| good	0.107 \| good
2026-06-10T12:00:00.000Z	31 \| good	3.913 \| good	6.83 \| good	33.149 \| good	0.144 \| good	2.732 \| good	0.109 \| good

Fort Collins

Empower business decisions with accurate air quality data

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

0.13ppm

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 03:00:00, 2026-06-08.

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 12:00:00 on 2026-06-07.

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 41.

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 3.601 μg/m³.

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

Fort Collins, Colorado currently has a PM₁₀ concentration of 14.089 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 0.101 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 0.72 ppb.

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

Fort Collins, Colorado currently has an ozone (O₃) concentration of 43.928 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 5.479 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-06-06T14:00:00.000Z	49 \| good	8.953 \| good	21.206 \| good	36.994 \| good	0.729 \| good	8.073 \| good	0.101 \| good
2026-06-06T15:00:00.000Z	49 \| good	9.229 \| good	21.967 \| good	42.892 \| good	0.997 \| good	8.132 \| good	0.101 \| good
2026-06-06T16:00:00.000Z	49 \| good	8.617 \| good	22.328 \| good	46.904 \| good	1.082 \| good	6.838 \| good	0.101 \| good
2026-06-06T17:00:00.000Z	49 \| good	7.739 \| good	23.53 \| good	52.864 \| good	0.952 \| good	5.652 \| good	0.2 \| good
2026-06-06T18:00:00.000Z	54 \| moderate	7.813 \| good	24.127 \| good	55.985 \| fine	1.058 \| good	2.962 \| good	0.2 \| good
2026-06-06T19:00:00.000Z	67 \| moderate	7.402 \| good	25.029 \| good	60.003 \| fine	0.841 \| good	2.727 \| good	0.2 \| good
2026-06-06T20:00:00.000Z	77 \| moderate	6.221 \| good	25.034 \| good	63.009 \| fine	0.703 \| good	2.095 \| good	0.2 \| good
2026-06-06T21:00:00.000Z	77 \| moderate	4.819 \| good	22.005 \| good	63.019 \| fine	0.681 \| good	1.327 \| good	0.1 \| good
2026-06-06T22:00:00.000Z	84 \| moderate	4.015 \| good	19.045 \| good	64.958 \| fine	0.678 \| good	0.952 \| good	0.1 \| good
2026-06-06T23:00:00.000Z	80 \| moderate	3.218 \| good	15.076 \| good	64.001 \| fine	0.748 \| good	0.869 \| good	0.1 \| good
2026-06-07T00:00:00.000Z	80 \| moderate	2.921 \| good	14.144 \| good	63.97 \| fine	0.703 \| good	1.096 \| good	0.1 \| good
2026-06-07T01:00:00.000Z	74 \| moderate	3.013 \| good	16.985 \| good	61.994 \| fine	0.679 \| good	1.488 \| good	0.101 \| good
2026-06-07T02:00:00.000Z	61 \| moderate	3.008 \| good	16.011 \| good	57.994 \| fine	0.722 \| good	2.177 \| good	0.2 \| good
2026-06-07T03:00:00.000Z	51 \| moderate	4.221 \| good	26.107 \| good	55.048 \| fine	0.634 \| good	1.592 \| good	0.199 \| good
2026-06-07T04:00:00.000Z	51 \| moderate	6.086 \| good	44.032 \| good	54.962 \| good	0.731 \| good	1.785 \| good	0.1 \| good
2026-06-07T05:00:00.000Z	48 \| good	6.087 \| good	43.996 \| good	51.982 \| good	0.942 \| good	2.363 \| good	0.1 \| good
2026-06-07T06:00:00.000Z	44 \| good	6.182 \| good	45.822 \| good	47.036 \| good	0.99 \| good	3.579 \| good	0.101 \| good
2026-06-07T07:00:00.000Z	41 \| good	4.883 \| good	31.78 \| good	43.976 \| good	0.754 \| good	4.171 \| good	0.101 \| good
2026-06-07T08:00:00.000Z	38 \| good	4.973 \| good	28.901 \| good	40.94 \| good	0.695 \| good	4.782 \| good	0.1 \| good
2026-06-07T09:00:00.000Z	38 \| good	5.075 \| good	27.996 \| good	40.926 \| good	0.7 \| good	5.111 \| good	0.101 \| good
2026-06-07T10:00:00.000Z	31 \| good	4.671 \| good	24.035 \| good	33.001 \| good	0.699 \| good	8.349 \| good	0.1 \| good
2026-06-07T11:00:00.000Z	29 \| good	4.378 \| good	20.189 \| good	30.985 \| good	0.977 \| good	6.773 \| good	0.1 \| good
2026-06-07T12:00:00.000Z	29 \| good	4.573 \| good	19.066 \| good	30.974 \| good	0.656 \| good	15.172 \| good	0.1 \| good
2026-06-07T13:00:00.000Z	31 \| good	4.792 \| good	19.006 \| good	33.971 \| good	0.701 \| good	14.013 \| good	0.101 \| good
2026-06-07T14:00:00.000Z	32 \| good	4.601 \| good	18.072 \| good	34.989 \| good	0.82 \| good	6.698 \| good	0.2 \| good
2026-06-07T15:00:00.000Z	34 \| good	4.396 \| good	18.154 \| good	36.998 \| good	0.747 \| good	5.936 \| good	0.1 \| good
2026-06-07T16:00:00.000Z	37 \| good	4.204 \| good	17.044 \| good	40.004 \| good	1.077 \| good	5.799 \| good	0.199 \| good
2026-06-07T17:00:00.000Z	43 \| good	3.913 \| good	18.025 \| good	46 \| good	0.725 \| good	3.489 \| good	0.1 \| good
2026-06-07T18:00:00.000Z	46 \| good	3.607 \| good	17.068 \| good	50.045 \| good	0.704 \| good	1.88 \| good	0.1 \| good
2026-06-07T19:00:00.000Z	48 \| good	3.319 \| good	17.137 \| good	52.078 \| good	0.724 \| good	1.375 \| good	0.1 \| good
2026-06-07T20:00:00.000Z	51 \| moderate	3.218 \| good	17.17 \| good	55.05 \| fine	0.702 \| good	0.977 \| good	0.1 \| good
2026-06-07T21:00:00.000Z	54 \| moderate	3.109 \| good	17.044 \| good	56.04 \| fine	0.705 \| good	0.859 \| good	0.1 \| good
2026-06-07T22:00:00.000Z	64 \| moderate	2.927 \| good	17.217 \| good	58.983 \| fine	0.636 \| good	1.053 \| good	0.1 \| good
2026-06-07T23:00:00.000Z	61 \| moderate	3.121 \| good	20.017 \| good	57.979 \| fine	0.678 \| good	2.91 \| good	0.2 \| good
2026-06-08T00:00:00.000Z	50 \| good	3.104 \| good	20.465 \| good	54.015 \| good	0.658 \| good	1.812 \| good	0.2 \| good
2026-06-08T01:00:00.000Z	47 \| good	3.039 \| good	18.254 \| good	51.04 \| good	0.634 \| good	3.658 \| good	0.2 \| good
2026-06-08T02:00:00.000Z	45 \| good	2.731 \| good	14.11 \| good	49.036 \| good	0.675 \| good	1.946 \| good	0.2 \| good
2026-06-08T03:00:00.000Z	137 \| sensitive	49.953 \| moderate	223.64 \| moderate	44.186 \| good	0.114 \| good	4.527 \| good	0.133 \| good
2026-06-08T04:00:00.000Z	44 \| good	2.515 \| good	12.161 \| good	46.96 \| good	0.744 \| good	3.915 \| good	0.2 \| good
2026-06-08T05:00:00.000Z	44 \| good	2.422 \| good	11.188 \| good	46.973 \| good	0.745 \| good	3.333 \| good	0.2 \| good
2026-06-08T06:00:00.000Z	42 \| good	2.734 \| good	12.366 \| good	44.999 \| good	0.748 \| good	1.139 \| good	0.245 \| good
2026-06-08T07:00:00.000Z	40 \| good	2.625 \| good	12.294 \| good	43.011 \| good	0.72 \| good	3.505 \| good	0.226 \| good
2026-06-08T08:00:00.000Z	41 \| good	2.612 \| good	12.161 \| good	43.922 \| good	0.72 \| good	3.631 \| good	0.19 \| good
2026-06-08T09:00:00.000Z	41 \| good	3.299 \| good	17.087 \| good	43.931 \| good	0.743 \| good	6.874 \| good	0.173 \| good
2026-06-08T10:00:00.000Z	43 \| good	3.396 \| good	15.175 \| good	45.885 \| good	0.989 \| good	1.817 \| good	0.154 \| good
2026-06-08T11:00:00.000Z	43 \| good	3.499 \| good	14.327 \| good	45.897 \| good	0.859 \| good	2.936 \| good	0.1 \| good
2026-06-08T12:00:00.000Z	41 \| good	3.601 \| good	14.089 \| good	43.928 \| good	0.72 \| good	5.479 \| good	0.101 \| good
2026-06-08T13:00:00.000Z	36 \| good	4.487 \| good	20.993 \| good	39.016 \| good	0.742 \| good	9.284 \| good	0.2 \| good
2026-06-08T13:00:00.000Z	36 \| good	4.487 \| good	20.993 \| good	39.016 \| good	0.742 \| good	9.284 \| good	0.2 \| good
2026-06-08T13:00:00.000Z	58 \| moderate	13.127 \| fine	59.091 \| fine	31.201 \| good	0.136 \| good	3.353 \| good	0.117 \| good
2026-06-08T14:00:00.000Z	62 \| moderate	15.162 \| fine	67.147 \| fine	34.65 \| good	0.199 \| good	1.682 \| good	0.106 \| good
2026-06-08T15:00:00.000Z	64 \| moderate	15.984 \| fine	71.092 \| fine	38.488 \| good	0.265 \| good	0.986 \| good	0.101 \| good
2026-06-08T16:00:00.000Z	56 \| moderate	12.486 \| fine	56.96 \| fine	44.974 \| good	0.275 \| good	0.709 \| good	0.101 \| good
2026-06-08T17:00:00.000Z	49 \| good	8.787 \| good	38.298 \| good	51.47 \| good	0.261 \| good	0.606 \| good	0.1 \| good
2026-06-08T18:00:00.000Z	54 \| moderate	6.18 \| good	27.111 \| good	55.785 \| fine	0.239 \| good	0.502 \| good	0.101 \| good
2026-06-08T19:00:00.000Z	61 \| moderate	5.133 \| good	21.996 \| good	58.151 \| fine	0.203 \| good	0.466 \| good	0.101 \| good
2026-06-08T20:00:00.000Z	71 \| moderate	4.647 \| good	20.029 \| good	60.671 \| fine	0.173 \| good	0.47 \| good	0.1 \| good
2026-06-08T21:00:00.000Z	67 \| moderate	3.918 \| good	17.106 \| good	59.775 \| fine	0.161 \| good	0.476 \| good	0.101 \| good
2026-06-08T22:00:00.000Z	61 \| moderate	6.835 \| good	30.072 \| good	58.058 \| fine	0.162 \| good	0.539 \| good	0.101 \| good
2026-06-08T23:00:00.000Z	48 \| good	4.136 \| good	18.038 \| good	52.237 \| good	0.179 \| good	0.645 \| good	0.103 \| good
2026-06-09T00:00:00.000Z	49 \| good	2.888 \| good	12.033 \| good	53.387 \| good	0.182 \| good	0.766 \| good	0.105 \| good
2026-06-09T01:00:00.000Z	50 \| good	0.733 \| good	3.029 \| good	54.245 \| good	0.182 \| good	1.064 \| good	0.107 \| good
2026-06-09T02:00:00.000Z	48 \| good	2.022 \| good	8.108 \| good	52.054 \| good	0.198 \| good	1.656 \| good	0.111 \| good
2026-06-09T03:00:00.000Z	39 \| good	2.58 \| good	10.158 \| good	42.292 \| good	0.215 \| good	2.72 \| good	0.119 \| good
2026-06-09T04:00:00.000Z	39 \| good	4.036 \| good	17.936 \| good	41.623 \| good	0.244 \| good	3.464 \| good	0.124 \| good
2026-06-09T05:00:00.000Z	54 \| moderate	10.738 \| good	47.704 \| good	39.232 \| good	0.288 \| good	3.999 \| good	0.128 \| good
2026-06-09T06:00:00.000Z	71 \| moderate	20.255 \| fine	88.637 \| fine	32.344 \| good	0.322 \| good	4.582 \| good	0.133 \| good
2026-06-09T07:00:00.000Z	54 \| moderate	11.135 \| good	49.583 \| good	27.592 \| good	0.329 \| good	5.051 \| good	0.136 \| good
2026-06-09T08:00:00.000Z	54 \| moderate	10.876 \| good	48.338 \| good	26.407 \| good	0.325 \| good	5.479 \| good	0.139 \| good
2026-06-09T09:00:00.000Z	58 \| moderate	13.269 \| fine	59.788 \| fine	26.599 \| good	0.313 \| good	5.932 \| good	0.143 \| good
2026-06-09T10:00:00.000Z	56 \| moderate	11.5 \| good	50.702 \| good	26.732 \| good	0.295 \| good	6.47 \| good	0.144 \| good
2026-06-09T11:00:00.000Z	64 \| moderate	15.61 \| fine	69.205 \| fine	27.138 \| good	0.262 \| good	6.709 \| good	0.144 \| good
2026-06-09T12:00:00.000Z	58 \| moderate	12.527 \| fine	56.71 \| fine	22.899 \| good	0.23 \| good	6.363 \| good	0.144 \| good
2026-06-09T13:00:00.000Z	56 \| moderate	11.946 \| good	53.538 \| good	19.878 \| good	0.198 \| good	4.54 \| good	0.139 \| good
2026-06-09T14:00:00.000Z	52 \| moderate	10.217 \| good	45.53 \| good	28.631 \| good	0.192 \| good	3.068 \| good	0.129 \| good
2026-06-09T15:00:00.000Z	44 \| good	7.66 \| good	33.719 \| good	34.579 \| good	0.192 \| good	2.288 \| good	0.119 \| good
2026-06-09T16:00:00.000Z	44 \| good	4.667 \| good	20.109 \| good	48.494 \| good	0.18 \| good	1.699 \| good	0.111 \| good
2026-06-09T17:00:00.000Z	64 \| moderate	4.552 \| good	19.582 \| good	58.785 \| fine	0.126 \| good	0.727 \| good	0.096 \| good
2026-06-09T18:00:00.000Z	64 \| moderate	5.02 \| good	21.709 \| good	58.878 \| fine	0.088 \| good	0.36 \| good	0.089 \| good
2026-06-09T19:00:00.000Z	71 \| moderate	3.06 \| good	12.173 \| good	61.128 \| fine	0.071 \| good	0.259 \| good	0.086 \| good
2026-06-09T20:00:00.000Z	51 \| moderate	4.47 \| good	19.252 \| good	55.195 \| fine	0.059 \| good	0.215 \| good	0.085 \| good
2026-06-09T21:00:00.000Z	71 \| moderate	20.069 \| fine	88.333 \| fine	53.51 \| good	0.053 \| good	0.203 \| good	0.085 \| good
2026-06-09T22:00:00.000Z	112 \| sensitive	39.639 \| moderate	173.118 \| moderate	53.107 \| good	0.053 \| good	0.212 \| good	0.086 \| good
2026-06-09T23:00:00.000Z	173 \| unhealthy	86.812 \| poor	287.833 \| poor	51.5 \| good	0.056 \| good	0.234 \| good	0.087 \| good
2026-06-10T00:00:00.000Z	191 \| unhealthy	111.986 \| poor	314.049 \| poor	49.506 \| good	0.061 \| good	0.295 \| good	0.088 \| good
2026-06-10T01:00:00.000Z	249 \| vUnhealthy	173.823 \| poor	371.097 \| poor	49.788 \| good	0.068 \| good	0.425 \| good	0.089 \| good
2026-06-10T02:00:00.000Z	165 \| unhealthy	76.112 \| poor	276.338 \| poor	46.693 \| good	0.078 \| good	0.764 \| good	0.091 \| good
2026-06-10T03:00:00.000Z	42 \| good	6.233 \| good	27.779 \| good	45.355 \| good	0.089 \| good	1.384 \| good	0.096 \| good
2026-06-10T04:00:00.000Z	58 \| moderate	13.332 \| fine	59.92 \| fine	46.801 \| good	0.104 \| good	1.993 \| good	0.1 \| good
2026-06-10T05:00:00.000Z	52 \| moderate	9.718 \| good	43.391 \| good	45.561 \| good	0.129 \| good	2.493 \| good	0.105 \| good
2026-06-10T06:00:00.000Z	34 \| good	4.362 \| good	7.174 \| good	37.361 \| good	0.142 \| good	2.628 \| good	0.107 \| good
2026-06-10T07:00:00.000Z	36 \| good	6.163 \| good	27.638 \| good	39.104 \| good	0.141 \| good	2.357 \| good	0.105 \| good
2026-06-10T08:00:00.000Z	33 \| good	5.963 \| good	26.704 \| good	35.627 \| good	0.139 \| good	2.274 \| good	0.105 \| good
2026-06-10T09:00:00.000Z	31 \| good	4.515 \| good	19.812 \| good	34.339 \| good	0.14 \| good	2.248 \| good	0.105 \| good
2026-06-10T10:00:00.000Z	38 \| good	6.916 \| good	30.592 \| good	29.248 \| good	0.142 \| good	2.288 \| good	0.106 \| good
2026-06-10T11:00:00.000Z	52 \| moderate	10.28 \| good	45.331 \| good	30.116 \| good	0.145 \| good	2.511 \| good	0.107 \| good
2026-06-10T12:00:00.000Z	31 \| good	3.913 \| good	6.83 \| good	33.149 \| good	0.144 \| good	2.732 \| good	0.109 \| 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?

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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?