Hourly Weather | Today Friday, September 18, 2026
Cedar Park, Texas
10 AM
Cloudy Weather
82°
Feels Like 93°
0
Humidity: 74%
UV Index: 4
Wind: 6 mph
11 AM
Cloudy Weather
88°
Feels Like 99°
0
Humidity: 61%
UV Index: 5
Wind: 6 mph
12 PM
Cloudy Weather
90°
Feels Like 100°
0
Humidity: 52%
UV Index: 7
Wind: 7 mph
1 PM
Cloudy Weather
91°
Feels Like 100°
0
Humidity: 46%
UV Index: 8
Wind: 7 mph
2 PM
Cloudy Weather
93°
Feels Like 100°
0
Humidity: 41%
UV Index: 7
Wind: 7 mph
3 PM
Cloudy Weather
93°
Feels Like 100°
0
Humidity: 39%
UV Index: 5
Wind: 7 mph
4 PM
Cloudy Weather
95°
Feels Like 99°
0
Humidity: 36%
UV Index: 4
Wind: 7 mph
5 PM
Cloudy Weather
93°
Feels Like 97°
0
Humidity: 37%
UV Index: 2
Wind: 7 mph
6 PM
Cloudy Weather
93°
Feels Like 93°
0
Humidity: 38%
UV Index: 1
Wind: 7 mph
7 PM
Cloudy Weather
91°
Feels Like 90°
0
Humidity: 42%
UV Index: 0
Wind: 7 mph
8 PM
Cloudy Night
88°
Feels Like 88°
0
Humidity: 46%
UV Index: 0
Wind: 7 mph
9 PM
Cloudy Night
86°
Feels Like 84°
0
Humidity: 51%
UV Index: 0
Wind: 7 mph
10 PM
Night
84°
Feels Like 84°
0
Humidity: 54%
UV Index: 0
Wind: 7 mph
11 PM
Night
82°
Feels Like 82°
0
Humidity: 57%
UV Index: 0
Wind: 7 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 2.84 µg/m³
  • PM10: 4.9 µg/m³
  • O3: 0.028 ppm
  • NO2: 3.9 ppb
  • SO2: 0.5 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.68 µg/m³
  • PM10: 4.47 µg/m³
  • O3: 0.042 ppm
  • NO2: 1.9 ppb
  • SO2: 0.5 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.75 µg/m³
  • PM10: 4.51 µg/m³
  • O3: 0.048 ppm
  • NO2: 1.1 ppb
  • SO2: 0.4 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.11 µg/m³
  • PM10: 5 µg/m³
  • O3: 0.052 ppm
  • NO2: 0.7 ppb
  • SO2: 0.3 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.09 µg/m³
  • PM10: 4.86 µg/m³
  • O3: 0.054 ppm
  • NO2: 0.6 ppb
  • SO2: 0.3 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.87 µg/m³
  • PM10: 4.44 µg/m³
  • O3: 0.054 ppm
  • NO2: 0.5 ppb
  • SO2: 0.3 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.96 µg/m³
  • PM10: 4.56 µg/m³
  • O3: 0.054 ppm
  • NO2: 0.6 ppb
  • SO2: 0.3 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

5 PM
52 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.16 µg/m³
  • PM10: 4.81 µg/m³
  • O3: 0.055 ppm
  • NO2: 0.7 ppb
  • SO2: 0.3 ppb
  • CO: 0.11 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

6 PM
53 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.42 µg/m³
  • PM10: 5.15 µg/m³
  • O3: 0.055 ppm
  • NO2: 1 ppb
  • SO2: 0.3 ppb
  • CO: 0.11 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

7 PM
51 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.72 µg/m³
  • PM10: 5.55 µg/m³
  • O3: 0.054 ppm
  • NO2: 1.2 ppb
  • SO2: 0.3 ppb
  • CO: 0.11 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

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

Pollutant Concentrations:

  • PM2.5: 4.22 µg/m³
  • PM10: 6.17 µg/m³
  • O3: 0.053 ppm
  • NO2: 1.5 ppb
  • SO2: 0.4 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.86 µg/m³
  • PM10: 6.98 µg/m³
  • O3: 0.053 ppm
  • NO2: 1.5 ppb
  • SO2: 0.4 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.2 µg/m³
  • PM10: 7.52 µg/m³
  • O3: 0.052 ppm
  • NO2: 1.5 ppb
  • SO2: 0.5 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.95 µg/m³
  • PM10: 7.46 µg/m³
  • O3: 0.049 ppm
  • NO2: 1.4 ppb
  • SO2: 0.5 ppb
  • CO: 0.12 ppm

Health Recommendations:

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