Hourly Weather | Today Wednesday, September 24, 2025
Fort Collins, Colorado
6 PM
Sunny Weather
66°
Feels Like 64°
0
Humidity: 44%
Wind: 6 mph
UV Index: 9
7 PM
Night
63°
Feels Like 63°
0
Humidity: 48%
Wind: 6 mph
UV Index: 0
8 PM
Night
61°
Feels Like 61°
0
Humidity: 57%
Wind: 6 mph
UV Index: 0
9 PM
Night
57°
Feels Like 57°
0
Humidity: 63%
Wind: 5 mph
UV Index: 0
10 PM
Night
55°
Feels Like 54°
0
Humidity: 69%
Wind: 5 mph
UV Index: 0
11 PM
Night
54°
Feels Like 52°
0
Humidity: 73%
Wind: 5 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

6 PM
40 AQI
Good air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 3.87 µg/m³
  • PM10: 4.67 µg/m³
  • O₃: 52.16 ppb
  • NO₂: 1.55 ppb
  • SO₂: 0.22 ppb
  • CO: 132.85 ppb

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors

7 PM
41 AQI
Good air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 4.74 µg/m³
  • PM10: 5.41 µg/m³
  • O₃: 46.38 ppb
  • NO₂: 3.99 ppb
  • SO₂: 0.30 ppb
  • CO: 155.95 ppb

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors

8 PM
41 AQI
Good air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 6.47 µg/m³
  • PM10: 7.16 µg/m³
  • O₃: 40.59 ppb
  • NO₂: 6.43 ppb
  • SO₂: 0.38 ppb
  • CO: 179.05 ppb

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors

9 PM
41 AQI
Good air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 7.93 µg/m³
  • PM10: 8.64 µg/m³
  • O₃: 34.80 ppb
  • NO₂: 8.87 ppb
  • SO₂: 0.47 ppb
  • CO: 202.15 ppb

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors

10 PM
41 AQI
Good air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 8.81 µg/m³
  • PM10: 9.46 µg/m³
  • O₃: 28.76 ppb
  • NO₂: 10.28 ppb
  • SO₂: 0.45 ppb
  • CO: 214.35 ppb

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors

11 PM
41 AQI
Good air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 9.02 µg/m³
  • PM10: 9.56 µg/m³
  • O₃: 22.71 ppb
  • NO₂: 11.69 ppb
  • SO₂: 0.43 ppb
  • CO: 226.56 ppb

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors