WWAI

San Antonio 10-Day Forecast

United States · Thursday, March 12, 2026

AmericasMetricAmerica/ChicagoPop. 2.6M
Current Weather & ForecastUpdated 11:11:57 AM
☀️
11°C
Clear Sky
High21°C/Low9°C
Feels 5°C
39% Humidity
22 km/h NNE
☀️UV 0 (Low)
☁️0% Cloud
💧
Precipitation
0.0 mm
🌧️
Rain Chance
0%
💨
Max Wind
25 km/h
🌀
Wind Gust
58 km/h
🌅
Sunrise
07:46
🌇
Sunset
19:40
Today's Hourly Breakdown
Actual
Forecast
Now
Times in CDT
🌡️Temperature (°C)
🌧️Precipitation (mm) & Chance (%)
💨Wind Speed & Gusts (km/h)
💧Humidity & Cloud Cover (%)
☀️UV Index
Weather Details
☀️
Clear Sky
Current condition
UV Index
0
Low
☁️
Cloud Cover
0%
Mostly Clear
Wind Direction
NNE
24°
Wind Gust
58 km/h
Precipitation
0.0 mm
Max Wind Today
25 km/h
Sunrise
07:46 AM
Sunset
07:40 PM

Real-time Air Quality Index (AQI)

Live
waqi
San Antonio, United States
Last Updated: 3/12/2026, 11:12:04 AM
25AQI (US)
Air Quality is
Good
PM2.5
3.9ug/m3
PM10
4.4ug/m3
Dominant: O3
Station: CPS Pecan Valley, San Antonio, Texas
☀️
11°C
Clear Sky
Humidity39 %
Wind Speed22 km/h
UV Index0
25
0-50
51-100
101-150
151-200
201-300
301-500+
Major Air Pollutants
PM2.5
3.9ug/m3
PM10
4.4ug/m3
O3
24.8ug/m3
NO2
2.3ug/m3
SO2
0.6ug/m3
CO
164ug/m3
Health Advice
Air quality is satisfactory. Enjoy outdoor activities!
Data updated 11:12:04 AM · Source: waqi
Hourly Air Pollutants
µg/m³
Health Impact & Advice
🚬
0.2cigarettes / day
Breathing this air equals smoking 0.2 cigarettes daily
Weekly: 1 cigsMonthly: 5 cigs
Source: Berkeley Earth · Based on PM2.5 = 3.9 ug/m3
Protective MeasuresAQI 25
🏠
Air Purifier
Not Needed
😷
N95 Mask
Not Needed
🏡
Stay Indoor
Not Needed
🪟
Windows Closed
Not Needed
🏃
Outdoor Exercise
Not Needed
🚗
Car Cabin Filter
Not Needed
Health Risk Assessment
🫁
Asthma
Low
Low risk for most people
❤️
Heart Issues
Low
Minimal risk
🤧
Allergies
Low
Low allergy aggravation risk
😮‍💨
Respiratory
Low
Normal breathing expected
👁️
Eye Irritation
Low
No issues expected
👶
Children & Elderly
Safe
Normal activities ok

San Antonio Weather & Air Quality Overview

San Antonio is a city in United States, located in the Northern Hemisphere at coordinates 29.42°N, 98.49°W. With a population of approximately 2.6 million, it is one of the notable urban centers in Americas. San Antonio experiences a subtropical climate. This page provides real-time temperature, humidity, wind speed, UV index, air quality monitoring, and a detailed 10-day weather forecast for San Antonio, United States.

Right now in San Antonio, the temperature is 11°C (feels like 5°C) with clear sky. Humidity is at 39%. Winds are blowing at 22 km/h. Today's high is expected to reach 21°C and the low will be around 9°C.

The current Air Quality Index (AQI) in San Antonio is 25, rated as Good. The dominant pollutant is O3.

San Antonio 10-Day Forecast

The extended San Antonio weather forecast shows highs, lows, and precipitation for the next 10 days. Plan ahead with the San Antonio forecast.

  • Today's high in San Antonio: 21°C
  • Humidity in San Antonio: 39%
  • Current AQI in San Antonio: 25 (Good)
  • Wind in San Antonio: 22 km/h

Weather in San Antonio and the San Antonio forecast are updated every few minutes. For more cities, see our weather directory and global AQI map, or check city AQI rankings and weather guides.

Data updates every few minutes. Weather powered by Open-Meteo. Air quality from multiple monitoring networks.

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