Today | Weather | Tuesday, December 30, 2025

Weather in San Antonio, Texas

05:29 PM
Now
Cloudy Weather
57° F
Feels Like 57°
Precipitation 0 %
Wind 5 mph
UV Index (0 - 11+) 0
Humidity 17 %
Today
Cloudy Weather
Day 63°
Night 37°
Precipitation 6 %
Wind 6 mph
UV Index (0 - 11+) 3

San Antonio Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (December 30, 2024)
Sunny Weather

Day

90°

Night

52°

Wind

6 mph

UV Index

3

Precipitation

1 %

Air Quality in San Antonio

NOW
41 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 3.58 µg/m³
PM10 5.62 µg/m³
O3 0.045 ppm
NO2 1 ppb
SO2 0.2 ppb
CO 0.13 ppm
NH3 0.9 µg/m³
NO 0.17 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)
PM2.53.58 µg/m³
PM105.62 µg/m³
O387.55 µg/m³
NO21.84 µg/m³
SO20.61 µg/m³
CO151.75 µg/m³
NH30.9 µg/m³
NO0.17 µg/m³