Air Quality in San Antonio, United States

Clear
36.3°C · 31.9% humidity
36.3°
Feels 36.3°
21
Good
Air quality is satisfactory. Enjoy outdoor activities.
5 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
8 3pm
8
8
21 6pm
17
15
13 9pm
11
8
8 12am
7
7
7 3am
6
6
6 6am
6
6
6 9am
6
6
6 12pm
6
6
Station readings
6
4
CAMS model adj -19
27
27
27
27
27
27
27
27
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
AD 728×90

Air Quality Index Trend

46h · 1 stn

San Antonio's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.

31.9%
Humidity
25.8 km/h
Wind S
1012.3 hPa
Pressure
9.4
UV Very High
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
21
5.14 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for San Antonio?

Temperature & Precipitation

PM2.5 Trend

46h · 1 station
PM2.55.14 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX9.4
Very High
AD 300×250
Station readings (5 stations within 25 km)
5.14
Median
4.61
Average
0.27
Low
8.0
High
PM2.5 µg/m³ · Model: 6.25 · Bias: +1.1

What is the 7-day forecast for San Antonio?

08-03
38.5° 24.0°
08-04
35.9° 24.1°
5.44 mm
08-05
35.4° 24.7°
0.06 mm
08-06
36.3° 24.7°
0.06 mm
08-07
38.4° 24.4°
08-08
36.6° 23.0°
0.06 mm
08-09
34.4° 24.3°
1.19 mm
Both models agree Avg diff: 1.9°C

Where are air quality stations near San Antonio?

14
CPS Pecan Valley, San Antonio, Texas
6.3 km PM2.5: 3.4 µg/m³
38
CPS Pecan Valley, San Antonio, Texas
6.3 km PM2.5: 9.1 µg/m³
23
CPS Pecan Valley, San Antonio, Texas
6.3 km PM2.5: 5.5 µg/m³
31
Old Hwy 90, San Antonio, Texas
8.4 km PM2.5: 7.4 µg/m³
33
Old Hwy 90, San Antonio, Texas
8.4 km PM2.5: 7.9 µg/m³
12
San Antonio Interstate 35
15.3 km PM2.5: 3.0 µg/m³
38
San Antonio Northwest, San Antonio, Texas
15.9 km PM2.5: 9.1 µg/m³
37
San Antonio Northwest, San Antonio, Texas
15.9 km PM2.5: 8.9 µg/m³
4
united-states-of-america-hollywood-park-pinetree-lane
15.9 km PM2.5: 1.0 µg/m³ PM10: 1.0 µg/m³
24
Heritage Middle School, San Antonio, Texas
17.5 km PM2.5: 5.8 µg/m³

What cities are near San Antonio?

26 Converse 25 Live Oak 25 Universal City 24 Schertz 23 Cibolo 33 New Braunfels 35 Seguin 10 Canyon Lake 16 San Marcos 13 Kyle
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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-08-07T23:59 UTC.