Today | Weather | Wednesday, April 15, 2026

Weather in San Antonio, Texas

03:28 PM
Now
Cloudy Weather
82° F
Feels Like 84°
Precipitation 25 %
Wind 12 mph
UV Index (0 - 11+) 3
Humidity 57 %
Today
Stormy Weather
Day 84°
Night 70°
Precipitation 70 %
Wind 13 mph
UV Index (0 - 11+) 3

San Antonio Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (April 15, 2025)
Cloudy Weather

Day

82°

Night

63°

Wind

11 mph

UV Index

5

Precipitation

1 %

Air Quality in San Antonio

NOW
29 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 1.54 µg/m³
PM10 2.34 µg/m³
O3 0.032 ppm
NO2 0.3 ppb
SO2 0.1 ppb
CO 0.11 ppm
NH3 1.04 µg/m³
NO 0.05 µg/m³
PM2.5 – Fine particles <2.5μm
PM10 – Inhalable particles <10μm
O3 – Ozone
NO2 – Nitrogen dioxide
SO2 – Sulfur dioxide
CO – Carbon monoxide
NH3 – Ammonia
NO – Nitric oxide

Health Recommendations:

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

Show raw pollutant concentrations (µg/m³)
PM2.51.54 µg/m³
PM102.34 µg/m³
O362.4 µg/m³
NO20.55 µg/m³
SO20.16 µg/m³
CO122.22 µg/m³
NH31.04 µg/m³
NO0.05 µg/m³