Hourly Weather | Today Saturday, July 25, 2026
San Antonio, Texas
8 AM
Cloudy Weather
79°
Feels Like 86°
0
Humidity: 84%
UV Index: 2
Wind: 6 mph
9 AM
Cloudy Weather
81°
Feels Like 90°
0
Humidity: 81%
UV Index: 3
Wind: 7 mph
10 AM
Cloudy Weather
82°
Feels Like 93°
0
Humidity: 74%
UV Index: 5
Wind: 8 mph
11 AM
Cloudy Weather
84°
Feels Like 97°
0
Humidity: 67%
UV Index: 8
Wind: 8 mph
12 PM
Cloudy Weather
88°
Feels Like 100°
0
Humidity: 60%
UV Index: 11
Wind: 8 mph
1 PM
Cloudy Weather
90°
Feels Like 100°
0
Humidity: 54%
UV Index: 11
Wind: 8 mph
2 PM
Cloudy Weather
91°
Feels Like 100°
0
Humidity: 49%
UV Index: 11
Wind: 8 mph
3 PM
Cloudy Weather
91°
Feels Like 100°
0
Humidity: 45%
UV Index: 8
Wind: 8 mph
4 PM
Sunny Weather
93°
Feels Like 99°
0
Humidity: 42%
UV Index: 5
Wind: 8 mph
5 PM
Sunny Weather
93°
Feels Like 97°
0
Humidity: 40%
UV Index: 3
Wind: 9 mph
6 PM
Cloudy Weather
91°
Feels Like 93°
0
Humidity: 42%
UV Index: 2
Wind: 9 mph
7 PM
Sunny Weather
91°
Feels Like 91°
0
Humidity: 45%
UV Index: 1
Wind: 9 mph
8 PM
Cloudy Weather
90°
Feels Like 90°
0
Humidity: 49%
UV Index: 0
Wind: 9 mph
9 PM
Cloudy Night
86°
Feels Like 88°
0
Humidity: 58%
UV Index: 0
Wind: 10 mph
10 PM
Cloudy Night
84°
Feels Like 88°
0
Humidity: 65%
UV Index: 0
Wind: 10 mph
11 PM
Cloudy Night
82°
Feels Like 84°
0
Humidity: 72%
UV Index: 0
Wind: 9 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 4.05 µg/m³
  • PM10: 10.84 µg/m³
  • O3: 0.016 ppm
  • NO2: 0.8 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 AM
18 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 4.3 µg/m³
  • PM10: 11.27 µg/m³
  • O3: 0.016 ppm
  • NO2: 0.7 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 AM
19 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 4.52 µg/m³
  • PM10: 11.49 µg/m³
  • O3: 0.018 ppm
  • NO2: 0.5 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 AM
21 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.38 µg/m³
  • PM10: 10.49 µg/m³
  • O3: 0.022 ppm
  • NO2: 0.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.32 µg/m³
  • PM10: 9.84 µg/m³
  • O3: 0.025 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.

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

Pollutant Concentrations:

  • PM2.5: 4.53 µg/m³
  • PM10: 9.97 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.

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

Pollutant Concentrations:

  • PM2.5: 3.88 µg/m³
  • PM10: 8.15 µg/m³
  • O3: 0.028 ppm
  • NO2: 0.1 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
27 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.17 µg/m³
  • PM10: 6.38 µg/m³
  • O3: 0.030 ppm
  • NO2: 0.1 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
28 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.04 µg/m³
  • PM10: 5.99 µg/m³
  • O3: 0.030 ppm
  • NO2: 0.1 ppb
  • SO2: 0.1 ppb
  • CO: 0.07 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.99 µg/m³
  • PM10: 5.86 µg/m³
  • O3: 0.031 ppm
  • NO2: 0.1 ppb
  • SO2: 0.1 ppb
  • CO: 0.07 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3 µg/m³
  • PM10: 5.91 µg/m³
  • O3: 0.032 ppm
  • NO2: 0.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.07 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: 3.15 µg/m³
  • PM10: 6.34 µg/m³
  • O3: 0.032 ppm
  • NO2: 0.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.07 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: 3.53 µg/m³
  • PM10: 7.32 µg/m³
  • O3: 0.032 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.

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

Pollutant Concentrations:

  • PM2.5: 4.12 µg/m³
  • PM10: 8.81 µg/m³
  • O3: 0.030 ppm
  • NO2: 0.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 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: 4.69 µg/m³
  • PM10: 10.21 µg/m³
  • O3: 0.027 ppm
  • NO2: 0.4 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.98 µg/m³
  • PM10: 10.93 µg/m³
  • O3: 0.025 ppm
  • NO2: 0.4 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 ppm

Health Recommendations:

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