Hourly Weather | Today Thursday, December 11, 2025
San Antonio, Texas
1 PM
Sunny Weather
68°
Feels Like 70°
0
Humidity: 22%
Wind: 6 mph
UV Index: 3
2 PM
Sunny Weather
70°
Feels Like 72°
0
Humidity: 22%
Wind: 7 mph
UV Index: 3
3 PM
Sunny Weather
72°
Feels Like 72°
0
Humidity: 21%
Wind: 7 mph
UV Index: 2
4 PM
Sunny Weather
70°
Feels Like 70°
0
Humidity: 23%
Wind: 6 mph
UV Index: 1
5 PM
Cloudy Weather
66°
Feels Like 64°
0
Humidity: 26%
Wind: 6 mph
UV Index: 0
6 PM
Night
64°
Feels Like 63°
0
Humidity: 32%
Wind: 6 mph
UV Index: 0
7 PM
Night
61°
Feels Like 61°
0
Humidity: 37%
Wind: 6 mph
UV Index: 0
8 PM
Night
57°
Feels Like 57°
0
Humidity: 42%
Wind: 6 mph
UV Index: 0
9 PM
Night
55°
Feels Like 54°
0
Humidity: 48%
Wind: 6 mph
UV Index: 0
10 PM
Night
54°
Feels Like 52°
0
Humidity: 53%
Wind: 6 mph
UV Index: 0
11 PM
Night
52°
Feels Like 50°
0
Humidity: 58%
Wind: 6 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 8.06 µg/m³
  • PM10: 10.58 µg/m³
  • O3: 0.044 ppm
  • NO2: 1.1 ppb
  • SO2: 1 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 9.32 µg/m³
  • PM10: 12.2 µg/m³
  • O3: 0.048 ppm
  • NO2: 0.7 ppb
  • SO2: 1 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 10.02 µg/m³
  • PM10: 13.18 µg/m³
  • O3: 0.050 ppm
  • NO2: 0.6 ppb
  • SO2: 0.9 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 10.63 µg/m³
  • PM10: 13.96 µg/m³
  • O3: 0.049 ppm
  • NO2: 0.8 ppb
  • SO2: 0.8 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

5 PM
46 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 11.08 µg/m³
  • PM10: 14.43 µg/m³
  • O3: 0.044 ppm
  • NO2: 1.4 ppb
  • SO2: 0.7 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

6 PM
47 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 11.36 µg/m³
  • PM10: 14.77 µg/m³
  • O3: 0.040 ppm
  • NO2: 2.1 ppb
  • SO2: 0.6 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

7 PM
49 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 11.67 µg/m³
  • PM10: 15.15 µg/m³
  • O3: 0.037 ppm
  • NO2: 2.5 ppb
  • SO2: 0.5 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

8 PM
50 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 12.06 µg/m³
  • PM10: 15.62 µg/m³
  • O3: 0.036 ppm
  • NO2: 2.5 ppb
  • SO2: 0.4 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

9 PM
51 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 12.51 µg/m³
  • PM10: 16.15 µg/m³
  • O3: 0.035 ppm
  • NO2: 2.4 ppb
  • SO2: 0.4 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

10 PM
52 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 12.95 µg/m³
  • PM10: 16.63 µg/m³
  • O3: 0.034 ppm
  • NO2: 2.2 ppb
  • SO2: 0.3 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

11 PM
53 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 13.61 µg/m³
  • PM10: 17.4 µg/m³
  • O3: 0.033 ppm
  • NO2: 2.1 ppb
  • SO2: 0.3 ppb
  • CO: 0.17 ppm

Health Recommendations:

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