Hourly Weather | Today Friday, August 14, 2026
San Antonio, Texas
1 PM
Cloudy Weather
93°
Feels Like 104°
0
Humidity: 50%
UV Index: 10
Wind: 12 mph
2 PM
Cloudy Weather
95°
Feels Like 102°
7
Humidity: 46%
UV Index: 9
Wind: 14 mph
3 PM
Cloudy Weather
97°
Feels Like 100°
7
Humidity: 42%
UV Index: 7
Wind: 14 mph
4 PM
Cloudy Weather
97°
Feels Like 100°
7
Humidity: 39%
UV Index: 4
Wind: 15 mph
5 PM
Cloudy Weather
97°
Feels Like 99°
7
Humidity: 41%
UV Index: 3
Wind: 15 mph
6 PM
Cloudy Weather
93°
Feels Like 95°
7
Humidity: 45%
UV Index: 2
Wind: 16 mph
7 PM
Cloudy Weather
91°
Feels Like 93°
5
Humidity: 50%
UV Index: 1
Wind: 16 mph
8 PM
Cloudy Weather
90°
Feels Like 90°
0
Humidity: 56%
UV Index: 0
Wind: 14 mph
9 PM
Cloudy Night
86°
Feels Like 90°
0
Humidity: 64%
UV Index: 0
Wind: 13 mph
10 PM
Cloudy Night
82°
Feels Like 88°
0
Humidity: 73%
UV Index: 0
Wind: 13 mph
11 PM
Cloudy Night
82°
Feels Like 88°
0
Humidity: 77%
UV Index: 0
Wind: 12 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 0.96 µg/m³
  • PM10: 1.91 µg/m³
  • O3: 0.022 ppm
  • NO2: 0.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.96 µg/m³
  • PM10: 1.73 µg/m³
  • O3: 0.024 ppm
  • NO2: 0.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.93 µg/m³
  • PM10: 1.52 µg/m³
  • O3: 0.027 ppm
  • NO2: 0.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.92 µg/m³
  • PM10: 1.4 µg/m³
  • O3: 0.028 ppm
  • NO2: 0.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.89 µg/m³
  • PM10: 1.3 µg/m³
  • O3: 0.030 ppm
  • NO2: 0.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.82 µg/m³
  • PM10: 1.13 µg/m³
  • O3: 0.030 ppm
  • NO2: 0.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.7 µg/m³
  • PM10: 0.95 µg/m³
  • O3: 0.029 ppm
  • NO2: 0.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.62 µg/m³
  • PM10: 0.86 µg/m³
  • O3: 0.027 ppm
  • NO2: 0.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.66 µg/m³
  • PM10: 1.07 µg/m³
  • O3: 0.026 ppm
  • NO2: 0.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.83 µg/m³
  • PM10: 1.64 µg/m³
  • O3: 0.024 ppm
  • NO2: 0.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.07 µg/m³
  • PM10: 2.54 µg/m³
  • O3: 0.022 ppm
  • NO2: 0.4 ppb
  • SO2: 0.1 ppb
  • CO: 0.09 ppm

Health Recommendations:

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