❮
Today Hourly 7 days 30 days Air Quality
❯
Hourly Weather | Today | Saturday, August 16, 2025
Boulder, Colorado
6 AM
Cloudy WeatherCloudy weather, overcast skies with no rain.
70°
Feels Like 66°
7
Humidity: 53%
Wind: 6 mph
UV Index: 0
7 AM
Cloudy WeatherCloudy weather, overcast skies with no rain.
70°
Feels Like 68°
5
Humidity: 52%
Wind: 6 mph
UV Index: 4
8 AM
Cloudy WeatherCloudy weather, overcast skies with clouds.
73°
Feels Like 73°
0
Humidity: 47%
Wind: 6 mph
UV Index: 15
9 AM
Cloudy WeatherCloudy weather, overcast skies with clouds.
75°
Feels Like 77°
0
Humidity: 43%
Wind: 6 mph
UV Index: 27
10 AM
Cloudy WeatherCloudy weather, overcast skies with clouds.
81°
Feels Like 84°
0
Humidity: 38%
Wind: 6 mph
UV Index: 44
11 AM
Cloudy WeatherCloudy weather, overcast skies with clouds.
81°
Feels Like 88°
0
Humidity: 35%
Wind: 6 mph
UV Index: 61
12 PM
Cloudy WeatherCloudy weather, overcast skies with clouds.
84°
Feels Like 90°
0
Humidity: 31%
Wind: 7 mph
UV Index: 77
1 PM
Cloudy WeatherCloudy weather, overcast skies with clouds.
81°
Feels Like 88°
2
Humidity: 34%
Wind: 7 mph
UV Index: 67
2 PM
Cloudy WeatherCloudy weather, overcast skies with clouds.
79°
Feels Like 82°
19
Humidity: 39%
Wind: 8 mph
UV Index: 44
3 PM
Cloudy WeatherCloudy weather, overcast skies with no rain.
79°
Feels Like 79°
19
Humidity: 43%
Wind: 9 mph
UV Index: 23
4 PM
Cloudy WeatherCloudy weather, overcast skies with no rain.
79°
Feels Like 79°
24
Humidity: 42%
Wind: 8 mph
UV Index: 16
5 PM
Cloudy WeatherCloudy weather, overcast skies with no rain.
79°
Feels Like 79°
43
Humidity: 41%
Wind: 7 mph
UV Index: 12
6 PM
Cloudy WeatherCloudy weather, overcast skies with no rain.
79°
Feels Like 77°
47
Humidity: 41%
Wind: 7 mph
UV Index: 9
7 PM
Stormy WeatherStormy weather, thunderstorms.
75°
Feels Like 72°
51
Humidity: 47%
Wind: 7 mph
UV Index: 3
8 PM
Stormy WeatherStormy weather, thunderstorms.
73°
Feels Like 68°
51
Humidity: 54%
Wind: 7 mph
UV Index: 0
9 PM
Cloudy NightCloudy night, overcast skies at night with no rain.
72°
Feels Like 70°
47
Humidity: 57%
Wind: 7 mph
UV Index: 0
10 PM
Cloudy NightCloudy night, overcast skies at night with no rain.
70°
Feels Like 66°
40
Humidity: 59%
Wind: 7 mph
UV Index: 0
11 PM
Cloudy NightCloudy night, overcast skies at night with no rain.
68°
Feels Like 66°
34
Humidity: 57%
Wind: 7 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

6 AM
59 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 13.79 µg/m³
  • PM10: 14.57 µg/m³
  • O₃: 27.25 ppb
  • NO₂: 4.36 ppb
  • SO₂: 0.20 ppb
  • CO: 164.93 ppb

Health Recommendations:

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

7 AM
59 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 14.06 µg/m³
  • PM10: 14.81 µg/m³
  • O₃: 34.46 ppb
  • NO₂: 3.87 ppb
  • SO₂: 0.25 ppb
  • CO: 170.63 ppb

Health Recommendations:

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

8 AM
59 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 14.33 µg/m³
  • PM10: 15.02 µg/m³
  • O₃: 41.67 ppb
  • NO₂: 3.39 ppb
  • SO₂: 0.29 ppb
  • CO: 176.34 ppb

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 16.25 µg/m³
  • PM10: 18.03 µg/m³
  • O₃: 48.88 ppb
  • NO₂: 2.90 ppb
  • SO₂: 0.34 ppb
  • CO: 182.05 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
59 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 14.44 µg/m³
  • PM10: 16.95 µg/m³
  • O₃: 54.15 ppb
  • NO₂: 2.15 ppb
  • SO₂: 0.32 ppb
  • CO: 165.76 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
59 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 10.94 µg/m³
  • PM10: 13.40 µg/m³
  • O₃: 59.43 ppb
  • NO₂: 1.39 ppb
  • SO₂: 0.30 ppb
  • CO: 149.47 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
58 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 9.54 µg/m³
  • PM10: 12.00 µg/m³
  • O₃: 64.71 ppb
  • NO₂: 0.63 ppb
  • SO₂: 0.29 ppb
  • CO: 133.18 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
58 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 8.85 µg/m³
  • PM10: 11.47 µg/m³
  • O₃: 63.98 ppb
  • NO₂: 0.73 ppb
  • SO₂: 0.26 ppb
  • CO: 129.81 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
57 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 7.86 µg/m³
  • PM10: 10.69 µg/m³
  • O₃: 63.26 ppb
  • NO₂: 0.83 ppb
  • SO₂: 0.24 ppb
  • CO: 126.43 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
58 AQI
Moderate air quality Dominant pollutant: o3
Details

Pollutant Concentrations:

  • PM2.5: 8.83 µg/m³
  • PM10: 12.50 µg/m³
  • O₃: 62.53 ppb
  • NO₂: 0.93 ppb
  • SO₂: 0.22 ppb
  • CO: 123.06 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
67 AQI
Moderate air quality Dominant pollutant: o3
Details

Pollutant Concentrations:

  • PM2.5: 9.19 µg/m³
  • PM10: 12.42 µg/m³
  • O₃: 62.89 ppb
  • NO₂: 1.29 ppb
  • SO₂: 0.31 ppb
  • CO: 128.10 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
73 AQI
Moderate air quality Dominant pollutant: o3
Details

Pollutant Concentrations:

  • PM2.5: 10.22 µg/m³
  • PM10: 13.63 µg/m³
  • O₃: 63.24 ppb
  • NO₂: 1.65 ppb
  • SO₂: 0.41 ppb
  • CO: 133.15 ppb

Health Recommendations:

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