Hourly Weather | Today Monday, April 27, 2026
Highlands Ranch, Colorado
6 PM
Rainy Weather
54°
Feels Like 50°
65
Humidity: 56%
UV Index: 1
Wind: 7 mph
7 PM
Rainy Weather
52°
Feels Like 46°
73
Humidity: 60%
UV Index: 0
Wind: 7 mph
8 PM
Cloudy Weather
50°
Feels Like 46°
25
Humidity: 65%
UV Index: 0
Wind: 7 mph
9 PM
Cloudy Weather
46°
Feels Like 45°
20
Humidity: 70%
UV Index: 0
Wind: 7 mph
10 PM
Cloudy Weather
45°
Feels Like 43°
20
Humidity: 76%
UV Index: 0
Wind: 7 mph
11 PM
Cloudy Weather
43°
Feels Like 39°
20
Humidity: 82%
UV Index: 0
Wind: 7 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.55 µg/m³
  • O3: 0.045 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.09 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: 0.5 µg/m³
  • PM10: 0.68 µg/m³
  • O3: 0.047 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.84 µg/m³
  • O3: 0.048 ppm
  • NO2: 0.1 ppb
  • SO2: 0.1 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.61 µg/m³
  • PM10: 1.08 µg/m³
  • O3: 0.050 ppm
  • NO2: 0.1 ppb
  • SO2: 0.1 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.65 µg/m³
  • PM10: 1.15 µg/m³
  • O3: 0.048 ppm
  • NO2: 0.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.65 µg/m³
  • PM10: 1.11 µg/m³
  • O3: 0.045 ppm
  • NO2: 0.4 ppb
  • SO2: 0.1 ppb
  • CO: 0.09 ppm

Health Recommendations:

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