Hourly Weather | Today Thursday, October 30, 2025
Greeley, Colorado
5 PM
Sunny Weather
55°
Feels Like 55°
0
Humidity: 30%
Wind: 6 mph
UV Index: 1
6 PM
Cloudy Night
50°
Feels Like 48°
0
Humidity: 37%
Wind: 6 mph
UV Index: 0
7 PM
Cloudy Night
45°
Feels Like 45°
0
Humidity: 46%
Wind: 6 mph
UV Index: 0
8 PM
Cloudy Night
43°
Feels Like 41°
0
Humidity: 48%
Wind: 6 mph
UV Index: 0
9 PM
Cloudy Night
39°
Feels Like 37°
0
Humidity: 54%
Wind: 6 mph
UV Index: 0
10 PM
Cloudy Night
37°
Feels Like 36°
0
Humidity: 59%
Wind: 6 mph
UV Index: 0
11 PM
Cloudy Night
34°
Feels Like 32°
0
Humidity: 65%
Wind: 6 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 3.04 µg/m³
  • PM10: 3.9 µg/m³
  • O3: 0.037 ppm
  • NO2: 3.8 ppb
  • SO2: 0.4 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.38 µg/m³
  • PM10: 4.43 µg/m³
  • O3: 0.031 ppm
  • NO2: 7.4 ppb
  • SO2: 0.4 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.78 µg/m³
  • PM10: 5.03 µg/m³
  • O3: 0.027 ppm
  • NO2: 10.5 ppb
  • SO2: 0.4 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.13 µg/m³
  • PM10: 5.56 µg/m³
  • O3: 0.024 ppm
  • NO2: 11.9 ppb
  • SO2: 0.3 ppb
  • CO: 0.16 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: 4.34 µg/m³
  • PM10: 5.87 µg/m³
  • O3: 0.023 ppm
  • NO2: 11.8 ppb
  • SO2: 0.3 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.36 µg/m³
  • PM10: 5.87 µg/m³
  • O3: 0.022 ppm
  • NO2: 10.8 ppb
  • SO2: 0.3 ppb
  • CO: 0.16 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: 4.5 µg/m³
  • PM10: 6 µg/m³
  • O3: 0.022 ppm
  • NO2: 10.1 ppb
  • SO2: 0.3 ppb
  • CO: 0.16 ppm

Health Recommendations:

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