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Hourly Weather | Today | Wednesday, August 13, 2025
Round Rock, Texas
3 AM
Cloudy NightCloudy night, overcast skies at night with no rain.
79°
Feels Like 84°
4
Humidity: 87%
Wind: 6 mph
UV Index: 0
4 AM
Cloudy NightCloudy night, overcast skies at night with no rain.
77°
Feels Like 82°
4
Humidity: 88%
Wind: 6 mph
UV Index: 0
5 AM
Cloudy NightCloudy night, overcast skies at night with no rain.
77°
Feels Like 82°
4
Humidity: 89%
Wind: 5 mph
UV Index: 0
6 AM
Cloudy NightCloudy night, overcast skies at night with no rain.
75°
Feels Like 82°
4
Humidity: 91%
Wind: 5 mph
UV Index: 0
7 AM
Cloudy WeatherCloudy weather, overcast skies with clouds.
75°
Feels Like 82°
3
Humidity: 91%
Wind: 5 mph
UV Index: 1
8 AM
Cloudy WeatherCloudy weather, overcast skies with clouds.
79°
Feels Like 88°
1
Humidity: 87%
Wind: 6 mph
UV Index: 1
9 AM
Cloudy WeatherCloudy weather, overcast skies with clouds.
81°
Feels Like 91°
1
Humidity: 79%
Wind: 6 mph
UV Index: 2
10 AM
Cloudy WeatherCloudy weather, overcast skies with clouds.
84°
Feels Like 95°
1
Humidity: 71%
Wind: 6 mph
UV Index: 4
11 AM
Cloudy WeatherCloudy weather, overcast skies with clouds.
88°
Feels Like 100°
0
Humidity: 63%
Wind: 6 mph
UV Index: 6
12 PM
Cloudy WeatherCloudy weather, overcast skies with clouds.
90°
Feels Like 104°
0
Humidity: 57%
Wind: 6 mph
UV Index: 8
1 PM
Cloudy WeatherCloudy weather, overcast skies with clouds.
91°
Feels Like 106°
3
Humidity: 53%
Wind: 5 mph
UV Index: 9
2 PM
Cloudy WeatherCloudy weather, overcast skies with clouds.
91°
Feels Like 106°
43
Humidity: 50%
Wind: 6 mph
UV Index: 8
3 PM
Cloudy WeatherCloudy weather, overcast skies with clouds.
93°
Feels Like 106°
47
Humidity: 48%
Wind: 6 mph
UV Index: 6
4 PM
Stormy WeatherStormy weather, thunderstorms.
91°
Feels Like 97°
51
Humidity: 52%
Wind: 6 mph
UV Index: 2
5 PM
Cloudy WeatherCloudy weather, overcast skies with clouds.
91°
Feels Like 99°
24
Humidity: 50%
Wind: 6 mph
UV Index: 2
6 PM
Cloudy WeatherCloudy weather, overcast skies with clouds.
91°
Feels Like 97°
19
Humidity: 52%
Wind: 6 mph
UV Index: 1
7 PM
Cloudy WeatherCloudy weather, overcast skies with clouds.
90°
Feels Like 95°
14
Humidity: 55%
Wind: 6 mph
UV Index: 0
8 PM
Cloudy WeatherCloudy weather, overcast skies with clouds.
90°
Feels Like 93°
5
Humidity: 59%
Wind: 6 mph
UV Index: 0
9 PM
Cloudy NightCloudy night, overcast skies at night with no rain.
88°
Feels Like 93°
5
Humidity: 64%
Wind: 6 mph
UV Index: 0
10 PM
Cloudy NightCloudy night, overcast skies at night with no rain.
84°
Feels Like 91°
5
Humidity: 71%
Wind: 6 mph
UV Index: 0
11 PM
Cloudy NightCloudy night, overcast skies at night with no rain.
82°
Feels Like 88°
5
Humidity: 77%
Wind: 6 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

3 AM
41 AQI
Good air quality Dominant pollutant: o3
Details

Pollutant Concentrations:

  • PM2.5: 7.05 µg/m³
  • PM10: 10.27 µg/m³
  • O₃: 35.81 ppb
  • NO₂: 4.56 ppb
  • SO₂: 0.60 ppb
  • CO: 200.26 ppb

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors

4 AM
39 AQI
Good air quality Dominant pollutant: o3
Details

Pollutant Concentrations:

  • PM2.5: 5.46 µg/m³
  • PM10: 5.76 µg/m³
  • O₃: 29.60 ppb
  • NO₂: 2.19 ppb
  • SO₂: 0.57 ppb
  • CO: 125.59 ppb

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors

5 AM
36 AQI
Good air quality Dominant pollutant: o3
Details

Pollutant Concentrations:

  • PM2.5: 4.37 µg/m³
  • PM10: 4.69 µg/m³
  • O₃: 26.50 ppb
  • NO₂: 2.48 ppb
  • SO₂: 0.59 ppb
  • CO: 120.32 ppb

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors

6 AM
34 AQI
Good air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 3.71 µg/m³
  • PM10: 4.08 µg/m³
  • O₃: 23.40 ppb
  • NO₂: 2.76 ppb
  • SO₂: 0.61 ppb
  • CO: 115.06 ppb

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors

7 AM
34 AQI
Good air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 3.44 µg/m³
  • PM10: 3.88 µg/m³
  • O₃: 20.30 ppb
  • NO₂: 3.05 ppb
  • SO₂: 0.64 ppb
  • CO: 109.80 ppb

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors

8 AM
34 AQI
Good air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 3.72 µg/m³
  • PM10: 4.24 µg/m³
  • O₃: 25.71 ppb
  • NO₂: 2.62 ppb
  • SO₂: 0.69 ppb
  • CO: 105.87 ppb

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors

9 AM
34 AQI
Good air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 3.99 µg/m³
  • PM10: 4.89 µg/m³
  • O₃: 31.12 ppb
  • NO₂: 2.20 ppb
  • SO₂: 0.74 ppb
  • CO: 101.94 ppb

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors

10 AM
35 AQI
Good air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 4.12 µg/m³
  • PM10: 5.15 µg/m³
  • O₃: 36.53 ppb
  • NO₂: 1.77 ppb
  • SO₂: 0.80 ppb
  • CO: 98.02 ppb

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors

11 AM
35 AQI
Good air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 4.27 µg/m³
  • PM10: 5.15 µg/m³
  • O₃: 45.24 ppb
  • NO₂: 1.41 ppb
  • SO₂: 0.73 ppb
  • CO: 106.78 ppb

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors

12 PM
35 AQI
Good air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 7.03 µg/m³
  • PM10: 7.87 µg/m³
  • O₃: 53.95 ppb
  • NO₂: 1.04 ppb
  • SO₂: 0.66 ppb
  • CO: 115.54 ppb

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors

1 PM
36 AQI
Good air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 8.77 µg/m³
  • PM10: 9.67 µg/m³
  • O₃: 62.66 ppb
  • NO₂: 0.68 ppb
  • SO₂: 0.59 ppb
  • CO: 124.30 ppb

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors

2 PM
39 AQI
Good air quality Dominant pollutant: o3
Details

Pollutant Concentrations:

  • PM2.5: 9.25 µg/m³
  • PM10: 10.17 µg/m³
  • O₃: 62.97 ppb
  • NO₂: 0.74 ppb
  • SO₂: 0.51 ppb
  • CO: 126.48 ppb

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors

3 PM
44 AQI
Good air quality Dominant pollutant: o3
Details

Pollutant Concentrations:

  • PM2.5: 9.25 µg/m³
  • PM10: 10.20 µg/m³
  • O₃: 63.28 ppb
  • NO₂: 0.79 ppb
  • SO₂: 0.44 ppb
  • CO: 128.66 ppb

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors

4 PM
48 AQI
Good air quality Dominant pollutant: o3
Details

Pollutant Concentrations:

  • PM2.5: 9.40 µg/m³
  • PM10: 10.36 µg/m³
  • O₃: 63.58 ppb
  • NO₂: 0.85 ppb
  • SO₂: 0.36 ppb
  • CO: 130.85 ppb

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors

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

Pollutant Concentrations:

  • PM2.5: 10.22 µg/m³
  • PM10: 11.20 µg/m³
  • O₃: 63.26 ppb
  • NO₂: 1.04 ppb
  • SO₂: 0.38 ppb
  • CO: 133.96 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
66 AQI
Moderate air quality Dominant pollutant: o3
Details

Pollutant Concentrations:

  • PM2.5: 12.27 µg/m³
  • PM10: 13.36 µg/m³
  • O₃: 62.94 ppb
  • NO₂: 1.24 ppb
  • SO₂: 0.39 ppb
  • CO: 137.07 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
73 AQI
Moderate air quality Dominant pollutant: o3
Details

Pollutant Concentrations:

  • PM2.5: 13.46 µg/m³
  • PM10: 14.50 µg/m³
  • O₃: 62.62 ppb
  • NO₂: 1.44 ppb
  • SO₂: 0.41 ppb
  • CO: 140.17 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: 13.90 µg/m³
  • PM10: 14.65 µg/m³
  • O₃: 58.85 ppb
  • NO₂: 1.81 ppb
  • SO₂: 0.48 ppb
  • CO: 146.55 ppb

Health Recommendations:

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