Hourly Weather | Today Thursday, November 20, 2025
Greeley, Colorado
2 PM
Cloudy Weather
50°
Feels Like 48°
17
Humidity: 45%
Wind: 8 mph
UV Index: 1
3 PM
Cloudy Weather
52°
Feels Like 48°
22
Humidity: 44%
Wind: 8 mph
UV Index: 1
4 PM
Cloudy Weather
54°
Feels Like 50°
47
Humidity: 46%
Wind: 8 mph
UV Index: 0
5 PM
Rainy Weather
50°
Feels Like 45°
49
Humidity: 54%
Wind: 7 mph
UV Index: 0
6 PM
Cloudy Weather
46°
Feels Like 43°
47
Humidity: 65%
Wind: 7 mph
UV Index: 0
7 PM
Cloudy Weather
45°
Feels Like 39°
49
Humidity: 69%
Wind: 7 mph
UV Index: 0
8 PM
Rainy Weather
41°
Feels Like 34°
56
Humidity: 77%
Wind: 7 mph
UV Index: 0
9 PM
Cloudy Weather
41°
Feels Like 37°
49
Humidity: 81%
Wind: 7 mph
UV Index: 0
10 PM
Rainy Weather
39°
Feels Like 34°
70
Humidity: 85%
Wind: 7 mph
UV Index: 0
11 PM
Rainy Weather
39°
Feels Like 34°
70
Humidity: 87%
Wind: 7 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

2 PM
28 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.96 µg/m³
  • PM10: 3.88 µg/m³
  • O3: 0.030 ppm
  • NO2: 4.2 ppb
  • SO2: 0.6 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.88 µg/m³
  • PM10: 3.83 µg/m³
  • O3: 0.029 ppm
  • NO2: 4.6 ppb
  • SO2: 0.5 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.99 µg/m³
  • PM10: 4.04 µg/m³
  • O3: 0.027 ppm
  • NO2: 5.6 ppb
  • SO2: 0.5 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.19 µg/m³
  • PM10: 4.33 µg/m³
  • O3: 0.025 ppm
  • NO2: 6.5 ppb
  • SO2: 0.5 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.38 µg/m³
  • PM10: 4.57 µg/m³
  • O3: 0.024 ppm
  • NO2: 7.2 ppb
  • SO2: 0.4 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.61 µg/m³
  • PM10: 4.76 µg/m³
  • O3: 0.023 ppm
  • NO2: 7.4 ppb
  • SO2: 0.4 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.96 µg/m³
  • PM10: 5.04 µg/m³
  • O3: 0.023 ppm
  • NO2: 7 ppb
  • SO2: 0.4 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.14 µg/m³
  • PM10: 5.02 µg/m³
  • O3: 0.023 ppm
  • NO2: 6.4 ppb
  • SO2: 0.4 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.22 µg/m³
  • PM10: 5.02 µg/m³
  • O3: 0.023 ppm
  • NO2: 6.1 ppb
  • SO2: 0.4 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.27 µg/m³
  • PM10: 5.01 µg/m³
  • O3: 0.023 ppm
  • NO2: 5.9 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

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