Hourly Weather | Today Wednesday, August 12, 2026
Highlands Ranch, Colorado
7 AM
Cloudy Weather
70°
Feels Like 68°
6
Humidity: 50%
UV Index: 1
Wind: 6 mph
8 AM
Cloudy Weather
73°
Feels Like 73°
1
Humidity: 39%
UV Index: 2
Wind: 6 mph
9 AM
Cloudy Weather
79°
Feels Like 81°
1
Humidity: 35%
UV Index: 3
Wind: 5 mph
10 AM
Cloudy Weather
82°
Feels Like 88°
1
Humidity: 29%
UV Index: 4
Wind: 6 mph
11 AM
Cloudy Weather
88°
Feels Like 91°
0
Humidity: 24%
UV Index: 6
Wind: 6 mph
12 PM
Cloudy Weather
91°
Feels Like 97°
0
Humidity: 21%
UV Index: 8
Wind: 7 mph
1 PM
Cloudy Weather
90°
Feels Like 95°
3
Humidity: 21%
UV Index: 8
Wind: 7 mph
2 PM
Cloudy Weather
90°
Feels Like 93°
47
Humidity: 23%
UV Index: 7
Wind: 8 mph
3 PM
Sunny with a Chance of Thunderstorms
86°
Feels Like 82°
51
Humidity: 31%
UV Index: 2
Wind: 8 mph
4 PM
Cloudy Weather
82°
Feels Like 82°
47
Humidity: 34%
UV Index: 3
Wind: 9 mph
5 PM
Cloudy Weather
82°
Feels Like 82°
15
Humidity: 36%
UV Index: 2
Wind: 9 mph
6 PM
Cloudy Weather
81°
Feels Like 79°
15
Humidity: 36%
UV Index: 1
Wind: 8 mph
7 PM
Cloudy Weather
77°
Feels Like 75°
19
Humidity: 42%
UV Index: 1
Wind: 8 mph
8 PM
Cloudy Weather
73°
Feels Like 72°
47
Humidity: 50%
UV Index: 0
Wind: 9 mph
9 PM
Stormy Weather
72°
Feels Like 66°
51
Humidity: 58%
UV Index: 0
Wind: 8 mph
10 PM
Cloudy Night
70°
Feels Like 66°
47
Humidity: 63%
UV Index: 0
Wind: 8 mph
11 PM
Cloudy Night
70°
Feels Like 66°
34
Humidity: 65%
UV Index: 0
Wind: 7 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 3.01 µg/m³
  • PM10: 3.46 µg/m³
  • O3: 0.022 ppm
  • NO2: 1.9 ppb
  • SO2: 0 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.98 µg/m³
  • PM10: 3.41 µg/m³
  • O3: 0.021 ppm
  • NO2: 2.1 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
22 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.98 µg/m³
  • PM10: 3.39 µg/m³
  • O3: 0.024 ppm
  • NO2: 1.8 ppb
  • SO2: 0 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.08 µg/m³
  • PM10: 3.81 µg/m³
  • O3: 0.050 ppm
  • NO2: 0.2 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
47 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.15 µg/m³
  • PM10: 3.98 µg/m³
  • O3: 0.051 ppm
  • NO2: 0.1 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
47 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.11 µg/m³
  • PM10: 3.94 µg/m³
  • O3: 0.050 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.2 µg/m³
  • PM10: 4.03 µg/m³
  • O3: 0.051 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.29 µg/m³
  • PM10: 4.04 µg/m³
  • O3: 0.051 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.29 µg/m³
  • PM10: 3.92 µg/m³
  • O3: 0.051 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.16 µg/m³
  • PM10: 3.63 µg/m³
  • O3: 0.051 ppm
  • NO2: 0.2 ppb
  • SO2: 0 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.17 µg/m³
  • PM10: 3.53 µg/m³
  • O3: 0.051 ppm
  • NO2: 0.2 ppb
  • SO2: 0 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.17 µg/m³
  • PM10: 3.48 µg/m³
  • O3: 0.051 ppm
  • NO2: 0.2 ppb
  • SO2: 0 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.12 µg/m³
  • PM10: 3.37 µg/m³
  • O3: 0.048 ppm
  • NO2: 0.4 ppb
  • SO2: 0 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.11 µg/m³
  • PM10: 3.34 µg/m³
  • O3: 0.043 ppm
  • NO2: 0.7 ppb
  • SO2: 0 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.11 µg/m³
  • PM10: 3.34 µg/m³
  • O3: 0.040 ppm
  • NO2: 0.9 ppb
  • SO2: 0 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.82 µg/m³
  • PM10: 3.02 µg/m³
  • O3: 0.036 ppm
  • NO2: 1.1 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
29 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.49 µg/m³
  • PM10: 2.67 µg/m³
  • O3: 0.031 ppm
  • NO2: 1.4 ppb
  • SO2: 0 ppb
  • CO: 0.09 ppm

Health Recommendations:

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