Hourly Weather | Today Saturday, August 29, 2026
Fort Collins, Colorado
7 PM
Sunny with a Chance of Thunderstorms
79°
Feels Like 73°
53
Humidity: 40%
UV Index: 0
Wind: 9 mph
8 PM
Cloudy Night
75°
Feels Like 73°
48
Humidity: 46%
UV Index: 0
Wind: 8 mph
9 PM
Cloudy Weather
73°
Feels Like 72°
47
Humidity: 48%
UV Index: 0
Wind: 8 mph
10 PM
Stormy Weather
66°
Feels Like 61°
51
Humidity: 76%
UV Index: 0
Wind: 7 mph
11 PM
Cloudy Night
66°
Feels Like 64°
40
Humidity: 73%
UV Index: 0
Wind: 6 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 1.79 µg/m³
  • PM10: 2.75 µg/m³
  • O3: 0.032 ppm
  • NO2: 0.6 ppb
  • SO2: 0 ppb
  • CO: 0.06 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.72 µg/m³
  • PM10: 2.54 µg/m³
  • O3: 0.029 ppm
  • NO2: 0.9 ppb
  • SO2: 0 ppb
  • CO: 0.06 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.69 µg/m³
  • PM10: 2.41 µg/m³
  • O3: 0.027 ppm
  • NO2: 1 ppb
  • SO2: 0 ppb
  • CO: 0.07 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.66 µg/m³
  • PM10: 2.29 µg/m³
  • O3: 0.024 ppm
  • NO2: 1.1 ppb
  • SO2: 0 ppb
  • CO: 0.07 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.66 µg/m³
  • PM10: 2.23 µg/m³
  • O3: 0.022 ppm
  • NO2: 1.2 ppb
  • SO2: 0 ppb
  • CO: 0.07 ppm

Health Recommendations:

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