Hourly Weather | Today Monday, April 27, 2026
Fort Collins, Colorado
5 PM
Rainy Weather
54°
Feels Like 46°
61
Humidity: 62%
UV Index: 1
Wind: 8 mph
6 PM
Cloudy Weather
52°
Feels Like 48°
49
Humidity: 64%
UV Index: 1
Wind: 8 mph
7 PM
Rainy Weather
48°
Feels Like 39°
56
Humidity: 67%
UV Index: 0
Wind: 9 mph
8 PM
Rainy Weather
46°
Feels Like 36°
56
Humidity: 67%
UV Index: 0
Wind: 10 mph
9 PM
Rainy Weather
45°
Feels Like 36°
49
Humidity: 75%
UV Index: 0
Wind: 10 mph
10 PM
Cloudy Weather
43°
Feels Like 36°
49
Humidity: 77%
UV Index: 0
Wind: 10 mph
11 PM
Cloudy Weather
43°
Feels Like 36°
34
Humidity: 80%
UV Index: 0
Wind: 9 mph

Hourly Air Quality Forecast - AQI (US EPA)

5 PM
36 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.88 µg/m³
  • PM10: 1.01 µg/m³
  • O3: 0.039 ppm
  • NO2: 0.7 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

6 PM
35 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.79 µg/m³
  • PM10: 0.95 µg/m³
  • O3: 0.038 ppm
  • NO2: 1 ppb
  • SO2: 0.1 ppb
  • CO: 0.09 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

7 PM
33 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.75 µg/m³
  • PM10: 0.97 µg/m³
  • O3: 0.036 ppm
  • NO2: 1.5 ppb
  • SO2: 0.1 ppb
  • CO: 0.09 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

8 PM
31 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.75 µg/m³
  • PM10: 1.07 µg/m³
  • O3: 0.034 ppm
  • NO2: 1.9 ppb
  • SO2: 0.1 ppb
  • CO: 0.09 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

9 PM
31 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.75 µg/m³
  • PM10: 1.14 µg/m³
  • O3: 0.033 ppm
  • NO2: 2 ppb
  • SO2: 0 ppb
  • CO: 0.10 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

10 PM
30 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.74 µg/m³
  • PM10: 1.17 µg/m³
  • O3: 0.032 ppm
  • NO2: 2.1 ppb
  • SO2: 0 ppb
  • CO: 0.10 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

11 PM
29 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.77 µg/m³
  • PM10: 1.23 µg/m³
  • O3: 0.031 ppm
  • NO2: 2.1 ppb
  • SO2: 0 ppb
  • CO: 0.10 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.