Hourly Weather | Today Monday, April 6, 2026
Greeley, Colorado
7 AM
Cloudy Weather
36°
Feels Like 34°
0
Humidity: 59%
UV Index: 0
Wind: 6 mph
8 AM
Cloudy Weather
39°
Feels Like 39°
0
Humidity: 53%
UV Index: 1
Wind: 6 mph
9 AM
Cloudy Weather
45°
Feels Like 46°
0
Humidity: 44%
UV Index: 2
Wind: 6 mph
10 AM
Cloudy Weather
48°
Feels Like 54°
0
Humidity: 37%
UV Index: 4
Wind: 6 mph
11 AM
Cloudy Weather
54°
Feels Like 61°
0
Humidity: 32%
UV Index: 5
Wind: 7 mph
12 PM
Cloudy Weather
59°
Feels Like 64°
0
Humidity: 27%
UV Index: 6
Wind: 8 mph
1 PM
Cloudy Weather
63°
Feels Like 68°
0
Humidity: 23%
UV Index: 7
Wind: 9 mph
2 PM
Cloudy Weather
66°
Feels Like 70°
0
Humidity: 20%
UV Index: 6
Wind: 12 mph
3 PM
Cloudy Weather
68°
Feels Like 70°
0
Humidity: 19%
UV Index: 5
Wind: 13 mph
4 PM
Cloudy Weather
70°
Feels Like 70°
0
Humidity: 17%
UV Index: 4
Wind: 14 mph
5 PM
Cloudy Weather
68°
Feels Like 66°
0
Humidity: 19%
UV Index: 2
Wind: 15 mph
6 PM
Cloudy Weather
64°
Feels Like 63°
0
Humidity: 21%
UV Index: 1
Wind: 16 mph
7 PM
Cloudy Weather
61°
Feels Like 55°
0
Humidity: 24%
UV Index: 0
Wind: 15 mph
8 PM
Cloudy Weather
55°
Feels Like 50°
0
Humidity: 29%
UV Index: 0
Wind: 15 mph
9 PM
Cloudy Weather
52°
Feels Like 45°
0
Humidity: 36%
UV Index: 0
Wind: 14 mph
10 PM
Cloudy Weather
48°
Feels Like 41°
0
Humidity: 40%
UV Index: 0
Wind: 13 mph
11 PM
Cloudy Weather
46°
Feels Like 37°
0
Humidity: 45%
UV Index: 0
Wind: 13 mph

Hourly Air Quality Forecast - AQI (US EPA)

7 AM
28 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.11 µg/m³
  • PM10: 3.84 µg/m³
  • O3: 0.030 ppm
  • NO2: 3.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.23 µg/m³
  • PM10: 4.09 µg/m³
  • O3: 0.029 ppm
  • NO2: 4.6 ppb
  • SO2: 0.1 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

9 AM
27 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.23 µg/m³
  • PM10: 4.16 µg/m³
  • O3: 0.030 ppm
  • NO2: 4.2 ppb
  • SO2: 0.2 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

10 AM
37 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.33 µg/m³
  • PM10: 2.95 µg/m³
  • O3: 0.040 ppm
  • NO2: 2.1 ppb
  • SO2: 0.3 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

11 AM
38 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.66 µg/m³
  • PM10: 3.28 µg/m³
  • O3: 0.041 ppm
  • NO2: 1.8 ppb
  • SO2: 0.4 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

12 PM
40 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.56 µg/m³
  • PM10: 4.23 µg/m³
  • O3: 0.044 ppm
  • NO2: 1.7 ppb
  • SO2: 0.5 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

1 PM
46 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.82 µg/m³
  • PM10: 2.32 µg/m³
  • O3: 0.049 ppm
  • NO2: 0.6 ppb
  • SO2: 0.3 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.46 µg/m³
  • PM10: 1.9 µg/m³
  • O3: 0.050 ppm
  • NO2: 0.3 ppb
  • SO2: 0.2 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.48 µg/m³
  • PM10: 1.91 µg/m³
  • O3: 0.050 ppm
  • NO2: 0.3 ppb
  • SO2: 0.2 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.57 µg/m³
  • PM10: 2.03 µg/m³
  • O3: 0.050 ppm
  • NO2: 0.4 ppb
  • SO2: 0.2 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.66 µg/m³
  • PM10: 2.17 µg/m³
  • O3: 0.050 ppm
  • NO2: 0.8 ppb
  • SO2: 0.2 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.71 µg/m³
  • PM10: 2.27 µg/m³
  • O3: 0.048 ppm
  • NO2: 1.2 ppb
  • SO2: 0.2 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.86 µg/m³
  • PM10: 2.52 µg/m³
  • O3: 0.046 ppm
  • NO2: 1.7 ppb
  • SO2: 0.2 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.07 µg/m³
  • PM10: 2.9 µg/m³
  • O3: 0.044 ppm
  • NO2: 2.1 ppb
  • SO2: 0.1 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.29 µg/m³
  • PM10: 3.26 µg/m³
  • O3: 0.042 ppm
  • NO2: 2.1 ppb
  • SO2: 0.1 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.59 µg/m³
  • PM10: 3.67 µg/m³
  • O3: 0.040 ppm
  • NO2: 2.1 ppb
  • SO2: 0.1 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.06 µg/m³
  • PM10: 4.22 µg/m³
  • O3: 0.039 ppm
  • NO2: 2.4 ppb
  • SO2: 0.1 ppb
  • CO: 0.12 ppm

Health Recommendations:

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