Today | Weather | Tuesday, August 26, 2025

Weather in San Antonio, Texas

12:14 AM
Now
Cloudy NightCloudy night, overcast skies at night with no rain.
82° F
Feels Like 88°
Precipitation 4 %
Wind 7 mph
Humidity 74 %
Today
Cloudy WeatherCloudy weather, overcast skies with clouds.
Day 97°
Night 77°
Precipitation 25 %
Wind 7 mph
UV Index (0 - 11+) 11

Warning: Extreme UV Index Today: 11+

Overexposure to the sun's harmful UV rays can cause sunburn and increase the risk of developing skin cancer, including melanoma. Protect yourself by wearing clothing that covers your skin, sunglasses, and a hat. Apply a broad-spectrum sunscreen with an SPF of 30 or higher every two hours, even on cloudy days. Minimize direct sun exposure during peak hours (10 AM to 4 PM) to reduce the risk.

Other:

Partly bright and clear and very warm.

San Antonio Weather Forecast Updated

51 minutes ago
Last updated on

Weather Forecast History

Last Year's Weather on This Day (August 26, 2024)

Sunny with a Chance of ThunderstormsSunny weather with a possibility of isolated thunderstorms developing later in the day.

Day

93°

Night

75°

Wind

8 mph

UV Index

8

Precipitation

88

Air quality in San Antonio

NOW
55 AQI
Moderate air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 9.94 µg/m³
PM10 10.87 µg/m³
O₃ 52.22 ppb
NO₂ 5.34 ppb
SO₂ 0.33 ppb
CO 154.22 ppb
PM2.5 – Fine particles <2.5μm
PM10 – Inhalable particles <10μm
O3 – Ozone
NO2 – Nitrogen dioxide
SO2 – Sulfur dioxide
CO – Carbon monoxide

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.