Today | Weather | Thursday, March 26, 2026

Weather in San Antonio, Texas

06:51 AM
Now
Cloudy Night
68° F
Feels Like 66°
Precipitation 0 %
Wind 9 mph
Humidity 84 %
Today
Cloudy Weather
Day 91°
Night 64°
Precipitation 1 %
Wind 13 mph
UV Index (0 - 11+) 8

Warning: High UV Index Today: 8

High risk of harm from unprotected sun exposure. Take precautions: wear a hat, sunglasses, and apply sunscreen regularly if you’ll be outdoors for extended periods.

San Antonio Weather Forecast Updated

58 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (March 26, 2025)
Stormy Weather

Day

82°

Night

64°

Wind

9 mph

UV Index

3

Precipitation

90 %

Air Quality in San Antonio

NOW
30 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 4.16 µg/m³
PM10 10.31 µg/m³
O3 0.032 ppm
NO2 0.5 ppb
SO2 0.2 ppb
CO 0.10 ppm
NH3 0.61 µg/m³
NO 0 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)
PM2.54.16 µg/m³
PM1010.31 µg/m³
O363.2 µg/m³
NO20.97 µg/m³
SO20.57 µg/m³
CO118.99 µg/m³
NH30.61 µg/m³
NO0 µg/m³