Hourly Weather | Today Monday, November 3, 2025
Westminster, Colorado
7 AM
Cloudy Weather
37°
Feels Like 36°
0
Humidity: 66%
Wind: 6 mph
UV Index: 0
8 AM
Cloudy Weather
41°
Feels Like 41°
0
Humidity: 60%
Wind: 6 mph
UV Index: 1
9 AM
Cloudy Weather
45°
Feels Like 46°
0
Humidity: 52%
Wind: 6 mph
UV Index: 1
10 AM
Cloudy Weather
48°
Feels Like 48°
0
Humidity: 46%
Wind: 7 mph
UV Index: 2
11 AM
Cloudy Weather
50°
Feels Like 52°
0
Humidity: 43%
Wind: 7 mph
UV Index: 2
12 PM
Cloudy Weather
52°
Feels Like 54°
0
Humidity: 40%
Wind: 7 mph
UV Index: 2
1 PM
Cloudy Weather
54°
Feels Like 54°
0
Humidity: 39%
Wind: 6 mph
UV Index: 2
2 PM
Cloudy Weather
54°
Feels Like 55°
0
Humidity: 39%
Wind: 6 mph
UV Index: 2
3 PM
Cloudy Weather
54°
Feels Like 55°
0
Humidity: 37%
Wind: 6 mph
UV Index: 2
4 PM
Cloudy Weather
54°
Feels Like 54°
0
Humidity: 40%
Wind: 6 mph
UV Index: 1
5 PM
Cloudy Night
50°
Feels Like 48°
0
Humidity: 45%
Wind: 5 mph
UV Index: 0
6 PM
Cloudy Night
46°
Feels Like 46°
0
Humidity: 51%
Wind: 5 mph
UV Index: 0
7 PM
Cloudy Night
45°
Feels Like 45°
0
Humidity: 54%
Wind: 5 mph
UV Index: 0
8 PM
Cloudy Night
45°
Feels Like 43°
0
Humidity: 57%
Wind: 5 mph
UV Index: 0
9 PM
Cloudy Night
45°
Feels Like 41°
0
Humidity: 57%
Wind: 6 mph
UV Index: 0
10 PM
Cloudy Night
43°
Feels Like 39°
0
Humidity: 56%
Wind: 7 mph
UV Index: 0
11 PM
Cloudy Night
43°
Feels Like 39°
0
Humidity: 56%
Wind: 7 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 1.43 µg/m³
  • PM10: 1.57 µg/m³
  • O3: 0.027 ppm
  • NO2: 2 ppb
  • SO2: 0 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.5 µg/m³
  • PM10: 1.65 µg/m³
  • O3: 0.026 ppm
  • NO2: 2.5 ppb
  • SO2: 0 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.26 µg/m³
  • PM10: 1.42 µg/m³
  • O3: 0.025 ppm
  • NO2: 2.5 ppb
  • SO2: 0 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.97 µg/m³
  • PM10: 1.13 µg/m³
  • O3: 0.023 ppm
  • NO2: 2 ppb
  • SO2: 0 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.93 µg/m³
  • PM10: 1.11 µg/m³
  • O3: 0.023 ppm
  • NO2: 1.7 ppb
  • SO2: 0 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.91 µg/m³
  • PM10: 1.12 µg/m³
  • O3: 0.036 ppm
  • NO2: 0.6 ppb
  • SO2: 0.1 ppb
  • CO: 0.07 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.98 µg/m³
  • PM10: 1.17 µg/m³
  • O3: 0.038 ppm
  • NO2: 0.4 ppb
  • SO2: 0.1 ppb
  • CO: 0.07 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.05 µg/m³
  • PM10: 1.25 µg/m³
  • O3: 0.038 ppm
  • NO2: 0.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.07 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.15 µg/m³
  • PM10: 1.36 µg/m³
  • O3: 0.038 ppm
  • NO2: 0.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.07 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.28 µg/m³
  • PM10: 1.52 µg/m³
  • O3: 0.036 ppm
  • NO2: 0.6 ppb
  • SO2: 0.1 ppb
  • CO: 0.07 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.38 µg/m³
  • PM10: 1.66 µg/m³
  • O3: 0.033 ppm
  • NO2: 1.1 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
29 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.46 µg/m³
  • PM10: 1.78 µg/m³
  • O3: 0.031 ppm
  • NO2: 1.5 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.54 µg/m³
  • PM10: 1.88 µg/m³
  • O3: 0.030 ppm
  • NO2: 1.6 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.57 µg/m³
  • PM10: 1.9 µg/m³
  • O3: 0.029 ppm
  • NO2: 1.6 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 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: 1.58 µg/m³
  • PM10: 1.9 µg/m³
  • O3: 0.027 ppm
  • NO2: 1.6 ppb
  • SO2: 0 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.61 µg/m³
  • PM10: 1.92 µg/m³
  • O3: 0.026 ppm
  • NO2: 1.5 ppb
  • SO2: 0 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.64 µg/m³
  • PM10: 1.95 µg/m³
  • O3: 0.026 ppm
  • NO2: 1.5 ppb
  • SO2: 0 ppb
  • CO: 0.08 ppm

Health Recommendations:

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