National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

San Antonio, San Antonio International Airport (KSAT)

Lat: 29.53°NLon: 98.46°WElev: 807ft.

Thunderstorm

29°C

85°F

Humidity 68%
Wind Speed S 24 km/h
Barometer 1012.9 mb (29.97 in)
Dewpoint 23°C (73°F)
Visibility 16 km
Heat Index33°C (92°F)
Last update 15 Jul 9:51 pm CDT
Extended Forecast for

San Antonio International Airport TX

  • Tonight

    Tonight: Increasing clouds, with a low around 24. South southeast wind 15 to 20 km/h.

    Low: 24 °C

    Increasing
    Clouds

  • Wednesday

    Wednesday: Cloudy through mid morning, then gradual clearing, with a high near 36. Heat index values as high as 39. South wind 10 to 20 km/h, with gusts as high as 35 km/h.

    High: 36 °C

    Gradual
    Clearing

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 23. South southeast wind 10 to 20 km/h, with gusts as high as 30 km/h.

    Low: 23 °C

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 35. Heat index values as high as 38. South southeast wind 5 to 10 km/h.

    High: 35 °C

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 23. Southeast wind 5 to 15 km/h.

    Low: 23 °C

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 34. South wind 5 to 10 km/h.

    High: 34 °C

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 24. South wind around 10 km/h.

    Low: 24 °C

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 36. South wind 5 to 15 km/h.

    High: 36 °C

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 24. South southeast wind 10 to 15 km/h.

    Low: 24 °C

    Partly Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a low around 24. South southeast wind 15 to 20 km/h.
Wednesday
Cloudy through mid morning, then gradual clearing, with a high near 36. Heat index values as high as 39. South wind 10 to 20 km/h, with gusts as high as 35 km/h.
Wednesday Night
Mostly clear, with a low around 23. South southeast wind 10 to 20 km/h, with gusts as high as 30 km/h.
Thursday
Mostly sunny, with a high near 35. Heat index values as high as 38. South southeast wind 5 to 10 km/h.
Thursday Night
Partly cloudy, with a low around 23. Southeast wind 5 to 15 km/h.
Friday
Partly sunny, with a high near 34. South wind 5 to 10 km/h.
Friday Night
Mostly cloudy, with a low around 24. South wind around 10 km/h.
Saturday
Mostly sunny, with a high near 36. South wind 5 to 15 km/h.
Saturday Night
Partly cloudy, with a low around 24. South southeast wind 10 to 15 km/h.
Sunday
Mostly sunny, with a high near 36.
Sunday Night
Partly cloudy, with a low around 24.
Monday
Mostly sunny and hot, with a high near 37.
Monday Night
Partly cloudy, with a low around 24.
Tuesday
Mostly sunny and hot, with a high near 37.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
San Antonio International Airport TX
 29.53°N 98.45°W (Elev. 771 m)
Last Update:
9:44 pm CDT Jul 15, 2025
Forecast Valid:
10pm CDT Jul 15, 2025-6pm CDT Jul 22, 2025
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation