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

Fort Collins, Colorado currently has a PM10 concentration of 70.887 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 1.299 ppb.

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

Fort Collins, Colorado currently has an ozone (O3) concentration of 54.92 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 3.668 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 16.108 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)

Moderate

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)

16.11 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

70.89 μg/m³

155

255

425

605+

Ozone (O₃)

54.92 ppb

201

201+

Sulfur Dioxide (SO₂)

1.30 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

3.67 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
2026-08-08T20:00:00.000Z	86 \| moderate	27.651 \| fine	120.645 \| fine	60.158 \| fine	0.717 \| good	1.92 \| good	0.299 \| good
2026-08-08T21:00:00.000Z	84 \| moderate	27.339 \| fine	118.8 \| fine	59.249 \| fine	0.718 \| good	0.87 \| good	0.299 \| good
2026-08-08T22:00:00.000Z	81 \| moderate	24.913 \| fine	108.664 \| fine	56.321 \| fine	0.717 \| good	2.658 \| good	0.2 \| good
2026-08-08T23:00:00.000Z	69 \| moderate	19.166 \| fine	84.904 \| fine	55.321 \| fine	0.67 \| good	1.917 \| good	0.2 \| good
2026-08-09T00:00:00.000Z	64 \| moderate	15.682 \| fine	70.706 \| fine	56.225 \| fine	0.669 \| good	1.992 \| good	0.2 \| good
2026-08-09T01:00:00.000Z	60 \| moderate	14.407 \| fine	64.895 \| fine	54.186 \| good	0.625 \| good	1.355 \| good	0.2 \| good
2026-08-09T02:00:00.000Z	62 \| moderate	14.992 \| fine	66.953 \| fine	57.967 \| fine	0.692 \| good	6.941 \| good	0.2 \| good
2026-08-09T03:00:00.000Z	75 \| moderate	21.591 \| fine	94.925 \| fine	50.262 \| good	0.251 \| good	3.931 \| good	0.161 \| good
2026-08-09T04:00:00.000Z	60 \| moderate	14.179 \| fine	62.946 \| fine	50.099 \| good	0.692 \| good	5.895 \| good	0.201 \| good
2026-08-09T05:00:00.000Z	60 \| moderate	13.804 \| fine	62.989 \| fine	42.371 \| good	0.718 \| good	2.284 \| good	0.2 \| good
2026-08-09T06:00:00.000Z	60 \| moderate	13.705 \| fine	61.022 \| fine	41.335 \| good	0.879 \| good	1.471 \| good	0.201 \| good
2026-08-09T07:00:00.000Z	60 \| moderate	14.083 \| fine	63.012 \| fine	44.234 \| good	0.829 \| good	1.488 \| good	0.201 \| good
2026-08-09T08:00:00.000Z	62 \| moderate	14.604 \| fine	64.92 \| fine	33.544 \| good	0.719 \| good	2.504 \| good	0.201 \| good
2026-08-09T09:00:00.000Z	62 \| moderate	14.602 \| fine	64.991 \| fine	30.555 \| good	0.76 \| good	3.175 \| good	0.2 \| good
2026-08-09T10:00:00.000Z	62 \| moderate	14.761 \| fine	65.964 \| fine	31.411 \| good	0.828 \| good	5.851 \| good	0.2 \| good
2026-08-09T11:00:00.000Z	62 \| moderate	14.721 \| fine	65.207 \| fine	28.419 \| good	1.068 \| good	6.419 \| good	0.201 \| good
2026-08-09T12:00:00.000Z	62 \| moderate	15.002 \| fine	67.015 \| fine	27.421 \| good	0.947 \| good	6.051 \| good	0.2 \| good
2026-08-09T13:00:00.000Z	62 \| moderate	15.017 \| fine	67.034 \| fine	24.423 \| good	0.894 \| good	4.731 \| good	0.2 \| good
2026-08-09T14:00:00.000Z	62 \| moderate	15.348 \| fine	69.119 \| fine	23.421 \| good	1.118 \| good	6.093 \| good	0.2 \| good
2026-08-09T15:00:00.000Z	62 \| moderate	15.087 \| fine	67.081 \| fine	35.191 \| good	1.325 \| good	3.956 \| good	0.2 \| good
2026-08-09T16:00:00.000Z	62 \| moderate	14.908 \| fine	67.043 \| fine	43.054 \| good	1.031 \| good	4.438 \| good	0.2 \| good
2026-08-09T17:00:00.000Z	62 \| moderate	14.896 \| fine	67.107 \| fine	47.051 \| good	0.899 \| good	2.993 \| good	0.2 \| good
2026-08-09T18:00:00.000Z	62 \| moderate	14.909 \| fine	67.039 \| fine	51.023 \| good	1.223 \| good	2.042 \| good	0.2 \| good
2026-08-09T19:00:00.000Z	62 \| moderate	14.901 \| fine	67.01 \| fine	52.081 \| good	1.314 \| good	0.917 \| good	0.2 \| good
2026-08-09T20:00:00.000Z	62 \| moderate	15.388 \| fine	68.949 \| fine	55.08 \| fine	0.771 \| good	1.9 \| good	0.2 \| good
2026-08-09T21:00:00.000Z	64 \| moderate	15.989 \| fine	70.975 \| fine	58.122 \| fine	0.739 \| good	1.354 \| good	0.2 \| good
2026-08-09T22:00:00.000Z	66 \| moderate	16.771 \| fine	74.93 \| fine	58.108 \| fine	0.67 \| good	2.091 \| good	0.201 \| good
2026-08-09T23:00:00.000Z	66 \| moderate	17.167 \| fine	76.827 \| fine	55.185 \| fine	0.672 \| good	3.077 \| good	0.101 \| good
2026-08-10T00:00:00.000Z	66 \| moderate	17.169 \| fine	76.299 \| fine	53.153 \| good	0.672 \| good	0.913 \| good	0.101 \| good
2026-08-10T01:00:00.000Z	66 \| moderate	16.662 \| fine	74.81 \| fine	53.116 \| good	0.649 \| good	2.363 \| good	0.201 \| good
2026-08-10T02:00:00.000Z	64 \| moderate	16.076 \| fine	70.963 \| fine	49.071 \| good	0.934 \| good	2.976 \| good	0.2 \| good
2026-08-10T03:00:00.000Z	79 \| moderate	24.322 \| fine	106.813 \| fine	53.993 \| good	0.242 \| good	2.583 \| good	0.169 \| good
2026-08-10T04:00:00.000Z	62 \| moderate	14.993 \| fine	66.966 \| fine	51.985 \| good	0.625 \| good	1.732 \| good	0.201 \| good
2026-08-10T05:00:00.000Z	62 \| moderate	14.611 \| fine	65.029 \| fine	50.943 \| good	0.832 \| good	3.112 \| good	0.201 \| good
2026-08-10T06:00:00.000Z	62 \| moderate	14.82 \| fine	67.449 \| fine	41.151 \| good	0.784 \| good	4.772 \| good	0.201 \| good
2026-08-10T07:00:00.000Z	62 \| moderate	14.709 \| fine	65.059 \| fine	35.307 \| good	0.741 \| good	3.647 \| good	0.201 \| good
2026-08-10T08:00:00.000Z	62 \| moderate	14.615 \| fine	64.744 \| fine	37.104 \| good	0.871 \| good	2.633 \| good	0.201 \| good
2026-08-10T09:00:00.000Z	62 \| moderate	14.641 \| fine	64.861 \| fine	38.989 \| good	0.896 \| good	5.03 \| good	0.201 \| good
2026-08-10T10:00:00.000Z	62 \| moderate	14.569 \| fine	65.004 \| fine	35.078 \| good	0.808 \| good	5.53 \| good	0.201 \| good
2026-08-10T11:00:00.000Z	62 \| moderate	14.501 \| fine	64.885 \| fine	34.086 \| good	0.808 \| good	9.333 \| good	0.201 \| good
2026-08-10T12:00:00.000Z	62 \| moderate	14.621 \| fine	64.908 \| fine	33.034 \| good	0.811 \| good	17.995 \| good	0.201 \| good
2026-08-10T13:00:00.000Z	62 \| moderate	14.675 \| fine	64.653 \| fine	28.146 \| good	0.971 \| good	23.464 \| good	0.201 \| good
2026-08-10T14:00:00.000Z	62 \| moderate	15.041 \| fine	66.965 \| fine	24.199 \| good	1.182 \| good	18.441 \| good	0.201 \| good
2026-08-10T15:00:00.000Z	62 \| moderate	15.418 \| fine	68.975 \| fine	31.171 \| good	1.079 \| good	11.663 \| good	0.201 \| good
2026-08-10T16:00:00.000Z	64 \| moderate	15.795 \| fine	70.754 \| fine	35.15 \| good	1.041 \| good	10.042 \| good	0.201 \| good
2026-08-10T17:00:00.000Z	64 \| moderate	15.951 \| fine	70.545 \| fine	41.145 \| good	1.524 \| good	8.766 \| good	0.3 \| good
2026-08-10T18:00:00.000Z	64 \| moderate	16.108 \| fine	70.887 \| fine	54.92 \| good	1.299 \| good	3.668 \| good	0.201 \| good
2026-08-10T19:00:00.000Z	64 \| moderate	16.108 \| fine	70.887 \| fine	54.92 \| good	1.299 \| good	3.668 \| good	0.201 \| good
2026-08-10T19:00:00.000Z	79 \| moderate	24.089 \| fine	105.016 \| fine	60.12 \| fine	0.235 \| good	0.36 \| good	0.149 \| good
2026-08-10T20:00:00.000Z	84 \| moderate	27.264 \| fine	118.87 \| fine	63.731 \| fine	0.212 \| good	0.365 \| good	0.144 \| good
2026-08-10T21:00:00.000Z	90 \| moderate	27.977 \| fine	121.021 \| fine	67.012 \| fine	0.197 \| good	0.403 \| good	0.139 \| good
2026-08-10T22:00:00.000Z	82 \| moderate	25.701 \| fine	112.736 \| fine	62.995 \| fine	0.187 \| good	0.772 \| good	0.142 \| good
2026-08-10T23:00:00.000Z	77 \| moderate	23.028 \| fine	100.917 \| fine	62.016 \| fine	0.173 \| good	1.259 \| good	0.148 \| good
2026-08-11T00:00:00.000Z	81 \| moderate	24.783 \| fine	108.693 \| fine	62.808 \| fine	0.167 \| good	1.241 \| good	0.15 \| good
2026-08-11T01:00:00.000Z	84 \| moderate	26.243 \| fine	114.771 \| fine	65.383 \| fine	0.16 \| good	2.016 \| good	0.162 \| good
2026-08-11T02:00:00.000Z	81 \| moderate	25.473 \| fine	110.847 \| fine	64.37 \| fine	0.159 \| good	2.935 \| good	0.17 \| good
2026-08-11T03:00:00.000Z	79 \| moderate	23.724 \| fine	102.959 \| fine	60.443 \| fine	0.171 \| good	3.349 \| good	0.171 \| good
2026-08-11T04:00:00.000Z	79 \| moderate	23.963 \| fine	104.809 \| fine	51.199 \| good	0.183 \| good	3.499 \| good	0.17 \| good
2026-08-11T05:00:00.000Z	79 \| moderate	23.95 \| fine	104.771 \| fine	46.134 \| good	0.189 \| good	4.439 \| good	0.174 \| good
2026-08-11T06:00:00.000Z	79 \| moderate	24.164 \| fine	105.094 \| fine	44.949 \| good	0.191 \| good	5.623 \| good	0.181 \| good
2026-08-11T07:00:00.000Z	79 \| moderate	24.227 \| fine	105.094 \| fine	45.902 \| good	0.186 \| good	6.224 \| good	0.184 \| good
2026-08-11T08:00:00.000Z	79 \| moderate	23.942 \| fine	104.848 \| fine	47.417 \| good	0.173 \| good	6.066 \| good	0.18 \| good
2026-08-11T09:00:00.000Z	82 \| moderate	26.192 \| fine	114.768 \| fine	47.813 \| good	0.16 \| good	5.414 \| good	0.172 \| good
2026-08-11T10:00:00.000Z	88 \| moderate	29.155 \| fine	126.88 \| fine	48.033 \| good	0.151 \| good	5.136 \| good	0.165 \| good
2026-08-11T11:00:00.000Z	82 \| moderate	26.155 \| fine	113.17 \| fine	41.326 \| good	0.147 \| good	4.996 \| good	0.161 \| good
2026-08-11T12:00:00.000Z	82 \| moderate	25.516 \| fine	111.009 \| fine	33.386 \| good	0.146 \| good	4.924 \| good	0.158 \| good
2026-08-11T13:00:00.000Z	88 \| moderate	28.776 \| fine	124.902 \| fine	29.271 \| good	0.142 \| good	4.338 \| good	0.157 \| good
2026-08-11T14:00:00.000Z	90 \| moderate	29.526 \| fine	128.736 \| fine	35.562 \| good	0.152 \| good	3.415 \| good	0.159 \| good
2026-08-11T15:00:00.000Z	82 \| moderate	25.984 \| fine	112.943 \| fine	45.85 \| good	0.192 \| good	2.472 \| good	0.155 \| good
2026-08-11T16:00:00.000Z	82 \| moderate	26.214 \| fine	114.717 \| fine	51.292 \| good	0.242 \| good	1.153 \| good	0.136 \| good
2026-08-11T17:00:00.000Z	81 \| moderate	24.877 \| fine	108.766 \| fine	57.378 \| fine	0.236 \| good	0.538 \| good	0.125 \| good
2026-08-11T18:00:00.000Z	84 \| moderate	26.616 \| fine	115.124 \| fine	56.919 \| fine	0.214 \| good	0.342 \| good	0.121 \| good
2026-08-11T19:00:00.000Z	82 \| moderate	25.749 \| fine	112.682 \| fine	58.897 \| fine	0.199 \| good	0.304 \| good	0.119 \| good
2026-08-11T20:00:00.000Z	73 \| moderate	20.868 \| fine	91.1 \| fine	53.717 \| good	0.187 \| good	0.314 \| good	0.118 \| good
2026-08-11T21:00:00.000Z	71 \| moderate	19.681 \| fine	86.854 \| fine	54.592 \| good	0.179 \| good	0.354 \| good	0.117 \| good
2026-08-11T22:00:00.000Z	73 \| moderate	21.413 \| fine	94.619 \| fine	59.093 \| fine	0.174 \| good	0.436 \| good	0.118 \| good
2026-08-11T23:00:00.000Z	81 \| moderate	24.59 \| fine	106.835 \| fine	63.963 \| fine	0.169 \| good	0.844 \| good	0.123 \| good
2026-08-12T00:00:00.000Z	84 \| moderate	24.495 \| fine	106.951 \| fine	64.887 \| fine	0.163 \| good	1.263 \| good	0.128 \| good
2026-08-12T01:00:00.000Z	84 \| moderate	24.686 \| fine	107.027 \| fine	64.956 \| fine	0.15 \| good	1.817 \| good	0.134 \| good
2026-08-12T02:00:00.000Z	79 \| moderate	24.202 \| fine	104.988 \| fine	58.885 \| fine	0.145 \| good	2.68 \| good	0.14 \| good
2026-08-12T03:00:00.000Z	81 \| moderate	24.677 \| fine	106.869 \| fine	55.072 \| fine	0.149 \| good	3.453 \| good	0.145 \| good
2026-08-12T04:00:00.000Z	77 \| moderate	22.915 \| fine	100.611 \| fine	48.992 \| good	0.161 \| good	3.91 \| good	0.148 \| good
2026-08-12T05:00:00.000Z	77 \| moderate	22.509 \| fine	98.734 \| fine	42.179 \| good	0.199 \| good	4.962 \| good	0.155 \| good
2026-08-12T06:00:00.000Z	82 \| moderate	25.942 \| fine	112.835 \| fine	41.66 \| good	0.219 \| good	4.877 \| good	0.156 \| good
2026-08-12T07:00:00.000Z	81 \| moderate	25.078 \| fine	109.035 \| fine	45.03 \| good	0.221 \| good	5.008 \| good	0.158 \| good
2026-08-12T08:00:00.000Z	84 \| moderate	26.531 \| fine	114.831 \| fine	41.244 \| good	0.205 \| good	5.615 \| good	0.161 \| good
2026-08-12T09:00:00.000Z	82 \| moderate	26.307 \| fine	114.72 \| fine	39.463 \| good	0.177 \| good	6.196 \| good	0.164 \| good
2026-08-12T10:00:00.000Z	84 \| moderate	26.637 \| fine	115.162 \| fine	37.43 \| good	0.154 \| good	6.655 \| good	0.166 \| good
2026-08-12T11:00:00.000Z	82 \| moderate	25.972 \| fine	112.862 \| fine	32.641 \| good	0.134 \| good	7.121 \| good	0.168 \| good
2026-08-12T12:00:00.000Z	81 \| moderate	25.444 \| fine	110.872 \| fine	25.241 \| good	0.123 \| good	7.274 \| good	0.168 \| good
2026-08-12T13:00:00.000Z	77 \| moderate	23.111 \| fine	100.899 \| fine	24.207 \| good	0.117 \| good	6.095 \| good	0.168 \| good
2026-08-12T14:00:00.000Z	81 \| moderate	24.739 \| fine	108.584 \| fine	27.994 \| good	0.136 \| good	4.542 \| good	0.164 \| good
2026-08-12T15:00:00.000Z	73 \| moderate	21.171 \| fine	92.961 \| fine	38.049 \| good	0.182 \| good	2.773 \| good	0.147 \| good
2026-08-12T16:00:00.000Z	73 \| moderate	21.397 \| fine	94.693 \| fine	47.691 \| good	0.277 \| good	1.334 \| good	0.131 \| good
2026-08-12T17:00:00.000Z	79 \| moderate	24.142 \| fine	104.885 \| fine	55.21 \| fine	0.293 \| good	0.769 \| good	0.128 \| good
2026-08-12T18:00:00.000Z	84 \| moderate	24.977 \| fine	108.794 \| fine	64.811 \| fine	0.272 \| good	0.554 \| good	0.127 \| good

Fort Collins

Empower business decisions with accurate air quality data

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

0.27ppm

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, 2026-08-10.

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 2026-08-10.

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

The air quality in Fort Collins, Colorado right now is Moderate, with an AQI of 64.

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

In Fort Collins, Colorado, PM2.5 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 16.108 μg/m³.

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

Fort Collins, Colorado currently has a PM₁₀ concentration of 70.887 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 0.201 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 1.299 ppb.

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

Fort Collins, Colorado currently has an ozone (O₃) concentration of 54.92 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 3.668 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-08-08T20:00:00.000Z	86 \| moderate	27.651 \| fine	120.645 \| fine	60.158 \| fine	0.717 \| good	1.92 \| good	0.299 \| good
2026-08-08T21:00:00.000Z	84 \| moderate	27.339 \| fine	118.8 \| fine	59.249 \| fine	0.718 \| good	0.87 \| good	0.299 \| good
2026-08-08T22:00:00.000Z	81 \| moderate	24.913 \| fine	108.664 \| fine	56.321 \| fine	0.717 \| good	2.658 \| good	0.2 \| good
2026-08-08T23:00:00.000Z	69 \| moderate	19.166 \| fine	84.904 \| fine	55.321 \| fine	0.67 \| good	1.917 \| good	0.2 \| good
2026-08-09T00:00:00.000Z	64 \| moderate	15.682 \| fine	70.706 \| fine	56.225 \| fine	0.669 \| good	1.992 \| good	0.2 \| good
2026-08-09T01:00:00.000Z	60 \| moderate	14.407 \| fine	64.895 \| fine	54.186 \| good	0.625 \| good	1.355 \| good	0.2 \| good
2026-08-09T02:00:00.000Z	62 \| moderate	14.992 \| fine	66.953 \| fine	57.967 \| fine	0.692 \| good	6.941 \| good	0.2 \| good
2026-08-09T03:00:00.000Z	75 \| moderate	21.591 \| fine	94.925 \| fine	50.262 \| good	0.251 \| good	3.931 \| good	0.161 \| good
2026-08-09T04:00:00.000Z	60 \| moderate	14.179 \| fine	62.946 \| fine	50.099 \| good	0.692 \| good	5.895 \| good	0.201 \| good
2026-08-09T05:00:00.000Z	60 \| moderate	13.804 \| fine	62.989 \| fine	42.371 \| good	0.718 \| good	2.284 \| good	0.2 \| good
2026-08-09T06:00:00.000Z	60 \| moderate	13.705 \| fine	61.022 \| fine	41.335 \| good	0.879 \| good	1.471 \| good	0.201 \| good
2026-08-09T07:00:00.000Z	60 \| moderate	14.083 \| fine	63.012 \| fine	44.234 \| good	0.829 \| good	1.488 \| good	0.201 \| good
2026-08-09T08:00:00.000Z	62 \| moderate	14.604 \| fine	64.92 \| fine	33.544 \| good	0.719 \| good	2.504 \| good	0.201 \| good
2026-08-09T09:00:00.000Z	62 \| moderate	14.602 \| fine	64.991 \| fine	30.555 \| good	0.76 \| good	3.175 \| good	0.2 \| good
2026-08-09T10:00:00.000Z	62 \| moderate	14.761 \| fine	65.964 \| fine	31.411 \| good	0.828 \| good	5.851 \| good	0.2 \| good
2026-08-09T11:00:00.000Z	62 \| moderate	14.721 \| fine	65.207 \| fine	28.419 \| good	1.068 \| good	6.419 \| good	0.201 \| good
2026-08-09T12:00:00.000Z	62 \| moderate	15.002 \| fine	67.015 \| fine	27.421 \| good	0.947 \| good	6.051 \| good	0.2 \| good
2026-08-09T13:00:00.000Z	62 \| moderate	15.017 \| fine	67.034 \| fine	24.423 \| good	0.894 \| good	4.731 \| good	0.2 \| good
2026-08-09T14:00:00.000Z	62 \| moderate	15.348 \| fine	69.119 \| fine	23.421 \| good	1.118 \| good	6.093 \| good	0.2 \| good
2026-08-09T15:00:00.000Z	62 \| moderate	15.087 \| fine	67.081 \| fine	35.191 \| good	1.325 \| good	3.956 \| good	0.2 \| good
2026-08-09T16:00:00.000Z	62 \| moderate	14.908 \| fine	67.043 \| fine	43.054 \| good	1.031 \| good	4.438 \| good	0.2 \| good
2026-08-09T17:00:00.000Z	62 \| moderate	14.896 \| fine	67.107 \| fine	47.051 \| good	0.899 \| good	2.993 \| good	0.2 \| good
2026-08-09T18:00:00.000Z	62 \| moderate	14.909 \| fine	67.039 \| fine	51.023 \| good	1.223 \| good	2.042 \| good	0.2 \| good
2026-08-09T19:00:00.000Z	62 \| moderate	14.901 \| fine	67.01 \| fine	52.081 \| good	1.314 \| good	0.917 \| good	0.2 \| good
2026-08-09T20:00:00.000Z	62 \| moderate	15.388 \| fine	68.949 \| fine	55.08 \| fine	0.771 \| good	1.9 \| good	0.2 \| good
2026-08-09T21:00:00.000Z	64 \| moderate	15.989 \| fine	70.975 \| fine	58.122 \| fine	0.739 \| good	1.354 \| good	0.2 \| good
2026-08-09T22:00:00.000Z	66 \| moderate	16.771 \| fine	74.93 \| fine	58.108 \| fine	0.67 \| good	2.091 \| good	0.201 \| good
2026-08-09T23:00:00.000Z	66 \| moderate	17.167 \| fine	76.827 \| fine	55.185 \| fine	0.672 \| good	3.077 \| good	0.101 \| good
2026-08-10T00:00:00.000Z	66 \| moderate	17.169 \| fine	76.299 \| fine	53.153 \| good	0.672 \| good	0.913 \| good	0.101 \| good
2026-08-10T01:00:00.000Z	66 \| moderate	16.662 \| fine	74.81 \| fine	53.116 \| good	0.649 \| good	2.363 \| good	0.201 \| good
2026-08-10T02:00:00.000Z	64 \| moderate	16.076 \| fine	70.963 \| fine	49.071 \| good	0.934 \| good	2.976 \| good	0.2 \| good
2026-08-10T03:00:00.000Z	79 \| moderate	24.322 \| fine	106.813 \| fine	53.993 \| good	0.242 \| good	2.583 \| good	0.169 \| good
2026-08-10T04:00:00.000Z	62 \| moderate	14.993 \| fine	66.966 \| fine	51.985 \| good	0.625 \| good	1.732 \| good	0.201 \| good
2026-08-10T05:00:00.000Z	62 \| moderate	14.611 \| fine	65.029 \| fine	50.943 \| good	0.832 \| good	3.112 \| good	0.201 \| good
2026-08-10T06:00:00.000Z	62 \| moderate	14.82 \| fine	67.449 \| fine	41.151 \| good	0.784 \| good	4.772 \| good	0.201 \| good
2026-08-10T07:00:00.000Z	62 \| moderate	14.709 \| fine	65.059 \| fine	35.307 \| good	0.741 \| good	3.647 \| good	0.201 \| good
2026-08-10T08:00:00.000Z	62 \| moderate	14.615 \| fine	64.744 \| fine	37.104 \| good	0.871 \| good	2.633 \| good	0.201 \| good
2026-08-10T09:00:00.000Z	62 \| moderate	14.641 \| fine	64.861 \| fine	38.989 \| good	0.896 \| good	5.03 \| good	0.201 \| good
2026-08-10T10:00:00.000Z	62 \| moderate	14.569 \| fine	65.004 \| fine	35.078 \| good	0.808 \| good	5.53 \| good	0.201 \| good
2026-08-10T11:00:00.000Z	62 \| moderate	14.501 \| fine	64.885 \| fine	34.086 \| good	0.808 \| good	9.333 \| good	0.201 \| good
2026-08-10T12:00:00.000Z	62 \| moderate	14.621 \| fine	64.908 \| fine	33.034 \| good	0.811 \| good	17.995 \| good	0.201 \| good
2026-08-10T13:00:00.000Z	62 \| moderate	14.675 \| fine	64.653 \| fine	28.146 \| good	0.971 \| good	23.464 \| good	0.201 \| good
2026-08-10T14:00:00.000Z	62 \| moderate	15.041 \| fine	66.965 \| fine	24.199 \| good	1.182 \| good	18.441 \| good	0.201 \| good
2026-08-10T15:00:00.000Z	62 \| moderate	15.418 \| fine	68.975 \| fine	31.171 \| good	1.079 \| good	11.663 \| good	0.201 \| good
2026-08-10T16:00:00.000Z	64 \| moderate	15.795 \| fine	70.754 \| fine	35.15 \| good	1.041 \| good	10.042 \| good	0.201 \| good
2026-08-10T17:00:00.000Z	64 \| moderate	15.951 \| fine	70.545 \| fine	41.145 \| good	1.524 \| good	8.766 \| good	0.3 \| good
2026-08-10T18:00:00.000Z	64 \| moderate	16.108 \| fine	70.887 \| fine	54.92 \| good	1.299 \| good	3.668 \| good	0.201 \| good
2026-08-10T19:00:00.000Z	64 \| moderate	16.108 \| fine	70.887 \| fine	54.92 \| good	1.299 \| good	3.668 \| good	0.201 \| good
2026-08-10T19:00:00.000Z	79 \| moderate	24.089 \| fine	105.016 \| fine	60.12 \| fine	0.235 \| good	0.36 \| good	0.149 \| good
2026-08-10T20:00:00.000Z	84 \| moderate	27.264 \| fine	118.87 \| fine	63.731 \| fine	0.212 \| good	0.365 \| good	0.144 \| good
2026-08-10T21:00:00.000Z	90 \| moderate	27.977 \| fine	121.021 \| fine	67.012 \| fine	0.197 \| good	0.403 \| good	0.139 \| good
2026-08-10T22:00:00.000Z	82 \| moderate	25.701 \| fine	112.736 \| fine	62.995 \| fine	0.187 \| good	0.772 \| good	0.142 \| good
2026-08-10T23:00:00.000Z	77 \| moderate	23.028 \| fine	100.917 \| fine	62.016 \| fine	0.173 \| good	1.259 \| good	0.148 \| good
2026-08-11T00:00:00.000Z	81 \| moderate	24.783 \| fine	108.693 \| fine	62.808 \| fine	0.167 \| good	1.241 \| good	0.15 \| good
2026-08-11T01:00:00.000Z	84 \| moderate	26.243 \| fine	114.771 \| fine	65.383 \| fine	0.16 \| good	2.016 \| good	0.162 \| good
2026-08-11T02:00:00.000Z	81 \| moderate	25.473 \| fine	110.847 \| fine	64.37 \| fine	0.159 \| good	2.935 \| good	0.17 \| good
2026-08-11T03:00:00.000Z	79 \| moderate	23.724 \| fine	102.959 \| fine	60.443 \| fine	0.171 \| good	3.349 \| good	0.171 \| good
2026-08-11T04:00:00.000Z	79 \| moderate	23.963 \| fine	104.809 \| fine	51.199 \| good	0.183 \| good	3.499 \| good	0.17 \| good
2026-08-11T05:00:00.000Z	79 \| moderate	23.95 \| fine	104.771 \| fine	46.134 \| good	0.189 \| good	4.439 \| good	0.174 \| good
2026-08-11T06:00:00.000Z	79 \| moderate	24.164 \| fine	105.094 \| fine	44.949 \| good	0.191 \| good	5.623 \| good	0.181 \| good
2026-08-11T07:00:00.000Z	79 \| moderate	24.227 \| fine	105.094 \| fine	45.902 \| good	0.186 \| good	6.224 \| good	0.184 \| good
2026-08-11T08:00:00.000Z	79 \| moderate	23.942 \| fine	104.848 \| fine	47.417 \| good	0.173 \| good	6.066 \| good	0.18 \| good
2026-08-11T09:00:00.000Z	82 \| moderate	26.192 \| fine	114.768 \| fine	47.813 \| good	0.16 \| good	5.414 \| good	0.172 \| good
2026-08-11T10:00:00.000Z	88 \| moderate	29.155 \| fine	126.88 \| fine	48.033 \| good	0.151 \| good	5.136 \| good	0.165 \| good
2026-08-11T11:00:00.000Z	82 \| moderate	26.155 \| fine	113.17 \| fine	41.326 \| good	0.147 \| good	4.996 \| good	0.161 \| good
2026-08-11T12:00:00.000Z	82 \| moderate	25.516 \| fine	111.009 \| fine	33.386 \| good	0.146 \| good	4.924 \| good	0.158 \| good
2026-08-11T13:00:00.000Z	88 \| moderate	28.776 \| fine	124.902 \| fine	29.271 \| good	0.142 \| good	4.338 \| good	0.157 \| good
2026-08-11T14:00:00.000Z	90 \| moderate	29.526 \| fine	128.736 \| fine	35.562 \| good	0.152 \| good	3.415 \| good	0.159 \| good
2026-08-11T15:00:00.000Z	82 \| moderate	25.984 \| fine	112.943 \| fine	45.85 \| good	0.192 \| good	2.472 \| good	0.155 \| good
2026-08-11T16:00:00.000Z	82 \| moderate	26.214 \| fine	114.717 \| fine	51.292 \| good	0.242 \| good	1.153 \| good	0.136 \| good
2026-08-11T17:00:00.000Z	81 \| moderate	24.877 \| fine	108.766 \| fine	57.378 \| fine	0.236 \| good	0.538 \| good	0.125 \| good
2026-08-11T18:00:00.000Z	84 \| moderate	26.616 \| fine	115.124 \| fine	56.919 \| fine	0.214 \| good	0.342 \| good	0.121 \| good
2026-08-11T19:00:00.000Z	82 \| moderate	25.749 \| fine	112.682 \| fine	58.897 \| fine	0.199 \| good	0.304 \| good	0.119 \| good
2026-08-11T20:00:00.000Z	73 \| moderate	20.868 \| fine	91.1 \| fine	53.717 \| good	0.187 \| good	0.314 \| good	0.118 \| good
2026-08-11T21:00:00.000Z	71 \| moderate	19.681 \| fine	86.854 \| fine	54.592 \| good	0.179 \| good	0.354 \| good	0.117 \| good
2026-08-11T22:00:00.000Z	73 \| moderate	21.413 \| fine	94.619 \| fine	59.093 \| fine	0.174 \| good	0.436 \| good	0.118 \| good
2026-08-11T23:00:00.000Z	81 \| moderate	24.59 \| fine	106.835 \| fine	63.963 \| fine	0.169 \| good	0.844 \| good	0.123 \| good
2026-08-12T00:00:00.000Z	84 \| moderate	24.495 \| fine	106.951 \| fine	64.887 \| fine	0.163 \| good	1.263 \| good	0.128 \| good
2026-08-12T01:00:00.000Z	84 \| moderate	24.686 \| fine	107.027 \| fine	64.956 \| fine	0.15 \| good	1.817 \| good	0.134 \| good
2026-08-12T02:00:00.000Z	79 \| moderate	24.202 \| fine	104.988 \| fine	58.885 \| fine	0.145 \| good	2.68 \| good	0.14 \| good
2026-08-12T03:00:00.000Z	81 \| moderate	24.677 \| fine	106.869 \| fine	55.072 \| fine	0.149 \| good	3.453 \| good	0.145 \| good
2026-08-12T04:00:00.000Z	77 \| moderate	22.915 \| fine	100.611 \| fine	48.992 \| good	0.161 \| good	3.91 \| good	0.148 \| good
2026-08-12T05:00:00.000Z	77 \| moderate	22.509 \| fine	98.734 \| fine	42.179 \| good	0.199 \| good	4.962 \| good	0.155 \| good
2026-08-12T06:00:00.000Z	82 \| moderate	25.942 \| fine	112.835 \| fine	41.66 \| good	0.219 \| good	4.877 \| good	0.156 \| good
2026-08-12T07:00:00.000Z	81 \| moderate	25.078 \| fine	109.035 \| fine	45.03 \| good	0.221 \| good	5.008 \| good	0.158 \| good
2026-08-12T08:00:00.000Z	84 \| moderate	26.531 \| fine	114.831 \| fine	41.244 \| good	0.205 \| good	5.615 \| good	0.161 \| good
2026-08-12T09:00:00.000Z	82 \| moderate	26.307 \| fine	114.72 \| fine	39.463 \| good	0.177 \| good	6.196 \| good	0.164 \| good
2026-08-12T10:00:00.000Z	84 \| moderate	26.637 \| fine	115.162 \| fine	37.43 \| good	0.154 \| good	6.655 \| good	0.166 \| good
2026-08-12T11:00:00.000Z	82 \| moderate	25.972 \| fine	112.862 \| fine	32.641 \| good	0.134 \| good	7.121 \| good	0.168 \| good
2026-08-12T12:00:00.000Z	81 \| moderate	25.444 \| fine	110.872 \| fine	25.241 \| good	0.123 \| good	7.274 \| good	0.168 \| good
2026-08-12T13:00:00.000Z	77 \| moderate	23.111 \| fine	100.899 \| fine	24.207 \| good	0.117 \| good	6.095 \| good	0.168 \| good
2026-08-12T14:00:00.000Z	81 \| moderate	24.739 \| fine	108.584 \| fine	27.994 \| good	0.136 \| good	4.542 \| good	0.164 \| good
2026-08-12T15:00:00.000Z	73 \| moderate	21.171 \| fine	92.961 \| fine	38.049 \| good	0.182 \| good	2.773 \| good	0.147 \| good
2026-08-12T16:00:00.000Z	73 \| moderate	21.397 \| fine	94.693 \| fine	47.691 \| good	0.277 \| good	1.334 \| good	0.131 \| good
2026-08-12T17:00:00.000Z	79 \| moderate	24.142 \| fine	104.885 \| fine	55.21 \| fine	0.293 \| good	0.769 \| good	0.128 \| good
2026-08-12T18:00:00.000Z	84 \| moderate	24.977 \| fine	108.794 \| fine	64.811 \| fine	0.272 \| good	0.554 \| good	0.127 \| 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?