Hourly Weather | Today | Wednesday, September 3, 2025
Denver, Colorado
9 AM
Cloudy WeatherCloudy weather, overcast skies with clouds.
63°
Feels Like 66°
0
Humidity: 46%
Wind: 5 mph
UV Index: 25
10 AM
Cloudy WeatherCloudy weather, overcast skies with clouds.
66°
Feels Like 72°
0
Humidity: 37%
Wind: 6 mph
UV Index: 38
11 AM
Cloudy WeatherCloudy weather, overcast skies with clouds.
72°
Feels Like 75°
0
Humidity: 30%
Wind: 8 mph
UV Index: 51
12 PM
Cloudy WeatherCloudy weather, overcast skies with clouds.
77°
Feels Like 82°
0
Humidity: 24%
Wind: 8 mph
UV Index: 67
1 PM
Cloudy WeatherCloudy weather, overcast skies with clouds.
82°
Feels Like 88°
0
Humidity: 19%
Wind: 8 mph
UV Index: 74
2 PM
Cloudy WeatherCloudy weather, overcast skies with clouds.
88°
Feels Like 91°
0
Humidity: 15%
Wind: 8 mph
UV Index: 67
3 PM
Cloudy WeatherCloudy weather, overcast skies with clouds.
88°
Feels Like 91°
0
Humidity: 15%
Wind: 8 mph
UV Index: 51
4 PM
Cloudy WeatherCloudy weather, overcast skies with clouds.
90°
Feels Like 91°
0
Humidity: 14%
Wind: 8 mph
UV Index: 38
5 PM
Cloudy WeatherCloudy weather, overcast skies with clouds.
88°
Feels Like 90°
0
Humidity: 14%
Wind: 7 mph
UV Index: 25
6 PM
Cloudy WeatherCloudy weather, overcast skies with clouds.
86°
Feels Like 84°
0
Humidity: 15%
Wind: 6 mph
UV Index: 15
7 PM
Cloudy WeatherCloudy weather, overcast skies with clouds.
82°
Feels Like 81°
0
Humidity: 17%
Wind: 6 mph
UV Index: 4
8 PM
Cloudy NightCloudy night, overcast skies at night with no rain.
81°
Feels Like 77°
0
Humidity: 21%
Wind: 7 mph
UV Index: 0
9 PM
Cloudy NightCloudy night, overcast skies at night with no rain.
77°
Feels Like 73°
0
Humidity: 24%
Wind: 7 mph
UV Index: 0
10 PM
Cloudy NightCloudy night, overcast skies at night with no rain.
73°
Feels Like 72°
0
Humidity: 28%
Wind: 6 mph
UV Index: 0
11 PM
Cloudy NightCloudy night, overcast skies at night with no rain.
72°
Feels Like 70°
0
Humidity: 32%
Wind: 6 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

9 AM
57 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 10.83 µg/m³
  • PM10: 16.72 µg/m³
  • O₃: 21.06 ppb
  • NO₂: 10.96 ppb
  • SO₂: 0.46 ppb
  • CO: 193.06 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

10 AM
56 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 9.50 µg/m³
  • PM10: 13.77 µg/m³
  • O₃: 32.30 ppb
  • NO₂: 8.42 ppb
  • SO₂: 0.49 ppb
  • CO: 178.81 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

11 AM
56 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 9.31 µg/m³
  • PM10: 12.95 µg/m³
  • O₃: 43.90 ppb
  • NO₂: 6.07 ppb
  • SO₂: 0.51 ppb
  • CO: 156.81 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

12 PM
56 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 9.18 µg/m³
  • PM10: 12.41 µg/m³
  • O₃: 55.63 ppb
  • NO₂: 3.81 ppb
  • SO₂: 0.51 ppb
  • CO: 131.70 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

1 PM
55 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 8.90 µg/m³
  • PM10: 11.87 µg/m³
  • O₃: 58.62 ppb
  • NO₂: 3.27 ppb
  • SO₂: 0.48 ppb
  • CO: 128.36 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

2 PM
55 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 7.74 µg/m³
  • PM10: 8.99 µg/m³
  • O₃: 69.45 ppb
  • NO₂: 0.94 ppb
  • SO₂: 0.48 ppb
  • CO: 116.99 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

3 PM
55 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 7.66 µg/m³
  • PM10: 8.87 µg/m³
  • O₃: 70.81 ppb
  • NO₂: 0.82 ppb
  • SO₂: 0.43 ppb
  • CO: 115.21 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

4 PM
55 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 7.61 µg/m³
  • PM10: 8.79 µg/m³
  • O₃: 69.20 ppb
  • NO₂: 1.56 ppb
  • SO₂: 0.45 ppb
  • CO: 120.86 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

5 PM
62 AQI
Moderate air quality Dominant pollutant: o3
Details

Pollutant Concentrations:

  • PM2.5: 7.67 µg/m³
  • PM10: 8.84 µg/m³
  • O₃: 67.59 ppb
  • NO₂: 2.29 ppb
  • SO₂: 0.47 ppb
  • CO: 126.51 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

6 PM
75 AQI
Moderate air quality Dominant pollutant: o3
Details

Pollutant Concentrations:

  • PM2.5: 8.32 µg/m³
  • PM10: 9.42 µg/m³
  • O₃: 65.98 ppb
  • NO₂: 3.03 ppb
  • SO₂: 0.48 ppb
  • CO: 132.16 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

7 PM
80 AQI
Moderate air quality Dominant pollutant: o3
Details

Pollutant Concentrations:

  • PM2.5: 10.33 µg/m³
  • PM10: 11.36 µg/m³
  • O₃: 55.13 ppb
  • NO₂: 9.47 ppb
  • SO₂: 0.57 ppb
  • CO: 186.91 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

8 PM
75 AQI
Moderate air quality Dominant pollutant: o3
Details

Pollutant Concentrations:

  • PM2.5: 12.90 µg/m³
  • PM10: 13.92 µg/m³
  • O₃: 44.27 ppb
  • NO₂: 15.92 ppb
  • SO₂: 0.66 ppb
  • CO: 241.66 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

9 PM
65 AQI
Moderate air quality Dominant pollutant: o3
Details

Pollutant Concentrations:

  • PM2.5: 14.17 µg/m³
  • PM10: 15.04 µg/m³
  • O₃: 33.42 ppb
  • NO₂: 22.36 ppb
  • SO₂: 0.75 ppb
  • CO: 296.41 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

10 PM
55 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 13.89 µg/m³
  • PM10: 14.58 µg/m³
  • O₃: 29.24 ppb
  • NO₂: 21.16 ppb
  • SO₂: 0.71 ppb
  • CO: 293.33 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

11 PM
55 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 13.55 µg/m³
  • PM10: 14.07 µg/m³
  • O₃: 25.06 ppb
  • NO₂: 19.96 ppb
  • SO₂: 0.67 ppb
  • CO: 290.25 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.