Hourly Weather | Today Tuesday, January 13, 2026
Thornton, Colorado
4 PM
Cloudy Weather
59°
Feels Like 55°
0
Humidity: 24%
Wind: 9 mph
UV Index: 0
5 PM
Cloudy Night
55°
Feels Like 52°
0
Humidity: 27%
Wind: 9 mph
UV Index: 0
6 PM
Cloudy Night
52°
Feels Like 46°
0
Humidity: 30%
Wind: 9 mph
UV Index: 0
7 PM
Cloudy Weather
48°
Feels Like 45°
0
Humidity: 34%
Wind: 8 mph
UV Index: 0
8 PM
Cloudy Weather
46°
Feels Like 43°
0
Humidity: 39%
Wind: 8 mph
UV Index: 0
9 PM
Cloudy Night
43°
Feels Like 39°
0
Humidity: 44%
Wind: 8 mph
UV Index: 0
10 PM
Cloudy Night
41°
Feels Like 36°
0
Humidity: 50%
Wind: 8 mph
UV Index: 0
11 PM
Cloudy Weather
41°
Feels Like 36°
0
Humidity: 52%
Wind: 8 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 0.79 µg/m³
  • PM10: 0.84 µg/m³
  • O3: 0.037 ppm
  • NO2: 0.8 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.83 µg/m³
  • PM10: 0.89 µg/m³
  • O3: 0.036 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
33 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.92 µg/m³
  • PM10: 0.99 µg/m³
  • O3: 0.035 ppm
  • NO2: 1.3 ppb
  • SO2: 0.2 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.08 µg/m³
  • PM10: 1.17 µg/m³
  • O3: 0.035 ppm
  • NO2: 1.4 ppb
  • SO2: 0.3 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.32 µg/m³
  • PM10: 1.43 µg/m³
  • O3: 0.035 ppm
  • NO2: 1.4 ppb
  • SO2: 0.4 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.52 µg/m³
  • PM10: 1.65 µg/m³
  • O3: 0.035 ppm
  • NO2: 1.4 ppb
  • SO2: 0.5 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.68 µg/m³
  • PM10: 1.83 µg/m³
  • O3: 0.035 ppm
  • NO2: 1.4 ppb
  • SO2: 0.6 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.79 µg/m³
  • PM10: 1.95 µg/m³
  • O3: 0.035 ppm
  • NO2: 1.4 ppb
  • SO2: 0.6 ppb
  • CO: 0.09 ppm

Health Recommendations:

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