Hourly Weather | Today Wednesday, August 5, 2026
Round Rock, Texas
3 AM
Night
81°
Feels Like 86°
34
Humidity: 80%
UV Index: 0
Wind: 7 mph
4 AM
Night
79°
Feels Like 86°
34
Humidity: 83%
UV Index: 0
Wind: 7 mph
5 AM
Night
79°
Feels Like 82°
34
Humidity: 85%
UV Index: 0
Wind: 6 mph
6 AM
Night
79°
Feels Like 84°
34
Humidity: 85%
UV Index: 0
Wind: 5 mph
7 AM
Sunny Weather
79°
Feels Like 84°
22
Humidity: 80%
UV Index: 1
Wind: 7 mph
8 AM
Sunny Weather
81°
Feels Like 84°
0
Humidity: 72%
UV Index: 2
Wind: 9 mph
9 AM
Cloudy Weather
84°
Feels Like 90°
0
Humidity: 65%
UV Index: 3
Wind: 10 mph
10 AM
Sunny Weather
88°
Feels Like 93°
0
Humidity: 57%
UV Index: 5
Wind: 10 mph
11 AM
Sunny Weather
90°
Feels Like 97°
0
Humidity: 46%
UV Index: 7
Wind: 10 mph
12 PM
Sunny Weather
93°
Feels Like 100°
0
Humidity: 41%
UV Index: 10
Wind: 10 mph
1 PM
Cloudy Weather
97°
Feels Like 104°
0
Humidity: 38%
UV Index: 11
Wind: 10 mph
2 PM
Cloudy Weather
99°
Feels Like 106°
0
Humidity: 34%
UV Index: 10
Wind: 10 mph
3 PM
Cloudy Weather
99°
Feels Like 102°
0
Humidity: 33%
UV Index: 7
Wind: 10 mph
4 PM
Cloudy Weather
99°
Feels Like 100°
0
Humidity: 32%
UV Index: 5
Wind: 10 mph
5 PM
Cloudy Weather
99°
Feels Like 99°
0
Humidity: 33%
UV Index: 3
Wind: 10 mph
6 PM
Cloudy Weather
97°
Feels Like 95°
0
Humidity: 34%
UV Index: 2
Wind: 10 mph
7 PM
Sunny Weather
93°
Feels Like 91°
0
Humidity: 38%
UV Index: 1
Wind: 10 mph
8 PM
Sunny Weather
91°
Feels Like 90°
0
Humidity: 44%
UV Index: 0
Wind: 10 mph
9 PM
Night
88°
Feels Like 88°
0
Humidity: 48%
UV Index: 0
Wind: 10 mph
10 PM
Night
86°
Feels Like 84°
0
Humidity: 52%
UV Index: 0
Wind: 9 mph
11 PM
Night
84°
Feels Like 84°
0
Humidity: 59%
UV Index: 0
Wind: 9 mph

Hourly Air Quality Forecast - AQI (US EPA)

3 AM
19 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 4.5 µg/m³
  • PM10: 11.52 µg/m³
  • O3: 0.015 ppm
  • NO2: 1.6 ppb
  • SO2: 0.4 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

4 AM
18 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 4.24 µg/m³
  • PM10: 11.08 µg/m³
  • O3: 0.015 ppm
  • NO2: 1.6 ppb
  • SO2: 0.4 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

5 AM
17 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 4.03 µg/m³
  • PM10: 10.69 µg/m³
  • O3: 0.015 ppm
  • NO2: 1.6 ppb
  • SO2: 0.4 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

6 AM
16 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 3.94 µg/m³
  • PM10: 10.5 µg/m³
  • O3: 0.015 ppm
  • NO2: 1.7 ppb
  • SO2: 0.5 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

7 AM
16 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 3.96 µg/m³
  • PM10: 10.53 µg/m³
  • O3: 0.014 ppm
  • NO2: 2.2 ppb
  • SO2: 0.5 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

8 AM
17 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 4.04 µg/m³
  • PM10: 10.57 µg/m³
  • O3: 0.013 ppm
  • NO2: 2.9 ppb
  • SO2: 0.5 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

9 AM
17 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 4.12 µg/m³
  • PM10: 10.57 µg/m³
  • O3: 0.014 ppm
  • NO2: 2.4 ppb
  • SO2: 0.6 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

10 AM
18 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 4.2 µg/m³
  • PM10: 10.52 µg/m³
  • O3: 0.016 ppm
  • NO2: 1.8 ppb
  • SO2: 0.8 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.25 µg/m³
  • PM10: 7.95 µg/m³
  • O3: 0.022 ppm
  • NO2: 1 ppb
  • SO2: 0.7 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

12 PM
25 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.41 µg/m³
  • PM10: 5.75 µg/m³
  • O3: 0.027 ppm
  • NO2: 0.7 ppb
  • SO2: 0.6 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.16 µg/m³
  • PM10: 4.98 µg/m³
  • O3: 0.030 ppm
  • NO2: 0.5 ppb
  • SO2: 0.5 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.99 µg/m³
  • PM10: 4.48 µg/m³
  • O3: 0.032 ppm
  • NO2: 0.5 ppb
  • SO2: 0.4 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.74 µg/m³
  • PM10: 3.87 µg/m³
  • O3: 0.032 ppm
  • NO2: 0.5 ppb
  • SO2: 0.4 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.57 µg/m³
  • PM10: 3.44 µg/m³
  • O3: 0.033 ppm
  • NO2: 0.5 ppb
  • SO2: 0.3 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.46 µg/m³
  • PM10: 3.13 µg/m³
  • O3: 0.033 ppm
  • NO2: 0.5 ppb
  • SO2: 0.3 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.42 µg/m³
  • PM10: 2.98 µg/m³
  • O3: 0.034 ppm
  • NO2: 0.7 ppb
  • SO2: 0.3 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.45 µg/m³
  • PM10: 3.04 µg/m³
  • O3: 0.033 ppm
  • NO2: 0.8 ppb
  • SO2: 0.3 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.57 µg/m³
  • PM10: 3.35 µg/m³
  • O3: 0.031 ppm
  • NO2: 1 ppb
  • SO2: 0.3 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.84 µg/m³
  • PM10: 4.07 µg/m³
  • O3: 0.029 ppm
  • NO2: 1.1 ppb
  • SO2: 0.4 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.24 µg/m³
  • PM10: 5.13 µg/m³
  • O3: 0.027 ppm
  • NO2: 1.2 ppb
  • SO2: 0.4 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.57 µg/m³
  • PM10: 6.13 µg/m³
  • O3: 0.023 ppm
  • NO2: 1.3 ppb
  • SO2: 0.4 ppb
  • CO: 0.10 ppm

Health Recommendations:

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