Hourly Weather | Today › Thursday, October 8, 2026
Westminster, Colorado
8 AM
Cloudy Weather
61°
Feels Like 63°
0
Humidity: 39%
UV Index: 1
Wind: 6 mph
9 AM
Cloudy Weather
64°
Feels Like 66°
0
Humidity: 38%
UV Index: 2
Wind: 6 mph
10 AM
Cloudy Weather
70°
Feels Like 72°
0
Humidity: 31%
UV Index: 3
Wind: 6 mph
11 AM
Cloudy Weather
75°
Feels Like 79°
0
Humidity: 24%
UV Index: 4
Wind: 6 mph
12 PM
Cloudy Weather
82°
Feels Like 86°
0
Humidity: 19%
UV Index: 4
Wind: 6 mph
1 PM
Cloudy Weather
84°
Feels Like 88°
0
Humidity: 16%
UV Index: 5
Wind: 6 mph
2 PM
Cloudy Weather
84°
Feels Like 90°
0
Humidity: 15%
UV Index: 4
Wind: 6 mph
3 PM
Cloudy Weather
88°
Feels Like 90°
0
Humidity: 13%
UV Index: 4
Wind: 6 mph
4 PM
Cloudy Weather
84°
Feels Like 86°
0
Humidity: 14%
UV Index: 3
Wind: 7 mph
5 PM
Cloudy Weather
82°
Feels Like 82°
0
Humidity: 16%
UV Index: 2
Wind: 8 mph
6 PM
Cloudy Weather
81°
Feels Like 79°
0
Humidity: 20%
UV Index: 1
Wind: 8 mph
7 PM
Cloudy Night
75°
Feels Like 73°
0
Humidity: 25%
UV Index: 0
Wind: 8 mph
8 PM
Cloudy Night
73°
Feels Like 70°
0
Humidity: 29%
UV Index: 0
Wind: 8 mph
9 PM
Cloudy Night
70°
Feels Like 68°
0
Humidity: 34%
UV Index: 0
Wind: 8 mph
10 PM
Cloudy Night
66°
Feels Like 64°
0
Humidity: 38%
UV Index: 0
Wind: 7 mph
11 PM
Cloudy Night
66°
Feels Like 63°
0
Humidity: 41%
UV Index: 0
Wind: 7 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 2.56 µg/m³
  • PM10: 2.85 µg/m³
  • O3: 0.026 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.

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

Pollutant Concentrations:

  • PM2.5: 2.45 µg/m³
  • PM10: 2.74 µg/m³
  • O3: 0.027 ppm
  • NO2: 1.8 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
30 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.33 µg/m³
  • PM10: 2.63 µg/m³
  • O3: 0.032 ppm
  • NO2: 1.1 ppb
  • SO2: 0 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.26 µg/m³
  • PM10: 2.55 µg/m³
  • O3: 0.035 ppm
  • NO2: 0.7 ppb
  • SO2: 0 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.26 µg/m³
  • PM10: 2.53 µg/m³
  • O3: 0.038 ppm
  • NO2: 0.5 ppb
  • SO2: 0 ppb
  • CO: 0.07 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.9 µg/m³
  • PM10: 2.15 µg/m³
  • O3: 0.042 ppm
  • NO2: 0.2 ppb
  • SO2: 0 ppb
  • CO: 0.06 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.88 µg/m³
  • PM10: 2.13 µg/m³
  • O3: 0.042 ppm
  • NO2: 0.3 ppb
  • SO2: 0 ppb
  • CO: 0.06 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.87 µg/m³
  • PM10: 2.11 µg/m³
  • O3: 0.041 ppm
  • NO2: 0.4 ppb
  • SO2: 0 ppb
  • CO: 0.06 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.86 µg/m³
  • PM10: 2.1 µg/m³
  • O3: 0.042 ppm
  • NO2: 0.6 ppb
  • SO2: 0 ppb
  • CO: 0.07 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.85 µg/m³
  • PM10: 2.07 µg/m³
  • O3: 0.042 ppm
  • NO2: 0.7 ppb
  • SO2: 0 ppb
  • CO: 0.07 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.81 µg/m³
  • PM10: 2.03 µg/m³
  • O3: 0.042 ppm
  • NO2: 0.7 ppb
  • SO2: 0 ppb
  • CO: 0.07 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.77 µg/m³
  • PM10: 1.96 µg/m³
  • O3: 0.038 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.

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

Pollutant Concentrations:

  • PM2.5: 1.81 µg/m³
  • PM10: 1.98 µg/m³
  • O3: 0.033 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.

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

Pollutant Concentrations:

  • PM2.5: 1.89 µg/m³
  • PM10: 2.06 µg/m³
  • O3: 0.030 ppm
  • NO2: 1.9 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
26 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.94 µg/m³
  • PM10: 2.12 µg/m³
  • O3: 0.028 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 PM
24 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2 µg/m³
  • PM10: 2.18 µg/m³
  • O3: 0.026 ppm
  • NO2: 2.2 ppb
  • SO2: 0 ppb
  • CO: 0.09 ppm

Health Recommendations:

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