Today | Weather | Thursday, April 2, 2026

Weather in San Antonio, Texas

05:35 PM
Now
Cloudy Weather
84° F
Feels Like 84°
Precipitation 40 %
Wind 16 mph
UV Index (0 - 11+) 1
Humidity 60 %
Today
Stormy Weather
Day 86°
Night 70°
Precipitation 55 %
Wind 10 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 2, 2025)
Cloudy Weather

Day

90°

Night

73°

Wind

8 mph

UV Index

6

Precipitation

40 %

Air Quality in San Antonio

NOW
29 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 2.08 µg/m³
PM10 4.14 µg/m³
O3 0.031 ppm
NO2 0.4 ppb
SO2 0.2 ppb
CO 0.10 ppm
NH3 1.48 µg/m³
NO 0.03 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)
PM2.52.08 µg/m³
PM104.14 µg/m³
O360.92 µg/m³
NO20.8 µg/m³
SO20.53 µg/m³
CO111.78 µg/m³
NH31.48 µg/m³
NO0.03 µg/m³