Air Quality in San Antonio, United States
Windy
21.2°C · 66.0% humidity
21.2°
Feels 21.2°
48
Good
Air quality is satisfactory. Enjoy outdoor activities.
4 stations
Nearby Monitoring Stations
AQI Forecast
Calibrated
47
1pm
43
44
14
4pm
35
35
35
7pm
35
35
35
10pm
23
23
23
1am
35
35
35
4am
35
35
35
7am
35
35
35
10am
35
35
Station readings
47
43
44
14
CAMS model
adj -2
50
37
37
37
37
37
37
37
37
37
25
25
25
37
37
37
37
37
37
37
37
37
37
37
PM2.5 Trend (24h)
27h · 2 stations66.0%
Humidity
85.8 km/h
Wind SSE
1018.3 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
What is the weather forecast for San Antonio?
Temperature & Precipitation
PM2.511.6 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
Station readings (4 stations within 25 km)
11.6
Median
10.87
Average
7.47
Low
12.8
High
PM2.5 µg/m³ · Model: 7.4 · Bias: -4.2
What is the 7-day forecast for San Antonio?
04-09
21.2° 14.1°
0.31 mm
04-10
24.0° 17.0°
1.25 mm
04-11
26.0° 16.9°
0.62 mm
04-12
27.2° 17.6°
0.56 mm
04-13
28.8° 20.7°
04-14
28.6° 19.5°
0.06 mm
04-15
30.6° 20.3°
0.06 mm
Both models agree
Avg diff: 2.5°C
Where are air quality stations near San Antonio?
18
CPS Pecan Valley, San Antonio, Texas
17
CPS Pecan Valley, San Antonio, Texas
31
Old Hwy 90, San Antonio, Texas
27
Old Hwy 90, San Antonio, Texas
50
San Antonio Interstate 35
26
San Antonio Northwest, San Antonio, Texas
30
San Antonio Northwest, San Antonio, Texas
10
united-states-of-america-hollywood-park-pinetree-lane
47
Heritage Middle School, San Antonio, Texas
18
Heritage Middle School, San Antonio, Texas
What cities are near San Antonio?
Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-04-09T16:59 UTC.