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Hourly Weather | Today | Thursday, September 4, 2025
Fort Collins, Colorado
3 PM
Cloudy WeatherCloudy weather, overcast skies with clouds.
88°
Feels Like 91°
0
Humidity: 17%
Wind: 8 mph
UV Index: 50
4 PM
Cloudy WeatherCloudy weather, overcast skies with clouds.
88°
Feels Like 88°
0
Humidity: 20%
Wind: 8 mph
UV Index: 37
5 PM
Cloudy WeatherCloudy weather, overcast skies with clouds.
84°
Feels Like 84°
0
Humidity: 21%
Wind: 8 mph
UV Index: 24
6 PM
Cloudy WeatherCloudy weather, overcast skies with clouds.
82°
Feels Like 81°
0
Humidity: 23%
Wind: 8 mph
UV Index: 14
7 PM
Cloudy WeatherCloudy weather, overcast skies with clouds.
79°
Feels Like 75°
0
Humidity: 27%
Wind: 9 mph
UV Index: 4
8 PM
Cloudy WeatherCloudy weather, overcast skies with no rain.
75°
Feels Like 72°
0
Humidity: 33%
Wind: 12 mph
UV Index: 0
9 PM
Cloudy WeatherCloudy weather, overcast skies with no rain.
72°
Feels Like 68°
0
Humidity: 38%
Wind: 12 mph
UV Index: 0
10 PM
Cloudy WeatherCloudy weather, overcast skies with no rain.
66°
Feels Like 64°
0
Humidity: 43%
Wind: 10 mph
UV Index: 0
11 PM
Cloudy WeatherCloudy weather, overcast skies with no rain.
63°
Feels Like 61°
0
Humidity: 49%
Wind: 9 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

3 PM
65 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 9.63 µg/m³
  • PM10: 16.86 µg/m³
  • O₃: 57.96 ppb
  • NO₂: 3.65 ppb
  • SO₂: 0.14 ppb
  • CO: 148.97 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

4 PM
65 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 8.60 µg/m³
  • PM10: 14.76 µg/m³
  • O₃: 58.67 ppb
  • NO₂: 3.28 ppb
  • SO₂: 0.14 ppb
  • CO: 143.21 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

5 PM
64 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 6.49 µg/m³
  • PM10: 7.50 µg/m³
  • O₃: 65.20 ppb
  • NO₂: 0.82 ppb
  • SO₂: 0.13 ppb
  • CO: 112.49 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

6 PM
64 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 6.93 µg/m³
  • PM10: 7.85 µg/m³
  • O₃: 64.21 ppb
  • NO₂: 1.02 ppb
  • SO₂: 0.13 ppb
  • CO: 113.13 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

7 PM
63 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 8.39 µg/m³
  • PM10: 9.15 µg/m³
  • O₃: 59.08 ppb
  • NO₂: 1.62 ppb
  • SO₂: 0.20 ppb
  • CO: 130.19 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

8 PM
63 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 18.08 µg/m³
  • PM10: 18.08 µg/m³
  • O₃: 53.95 ppb
  • NO₂: 2.21 ppb
  • SO₂: 0.28 ppb
  • CO: 147.25 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

9 PM
63 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 15.52 µg/m³
  • PM10: 15.52 µg/m³
  • O₃: 48.83 ppb
  • NO₂: 2.80 ppb
  • SO₂: 0.36 ppb
  • CO: 164.32 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

10 PM
63 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 15.60 µg/m³
  • PM10: 15.84 µg/m³
  • O₃: 46.08 ppb
  • NO₂: 2.44 ppb
  • SO₂: 0.38 ppb
  • CO: 177.10 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

11 PM
63 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 16.73 µg/m³
  • PM10: 16.90 µg/m³
  • O₃: 43.32 ppb
  • NO₂: 2.07 ppb
  • SO₂: 0.40 ppb
  • CO: 189.88 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

Current Real-Time Air Quality Report