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.

A Few Clouds

88°F

31°C

Humidity 39%
Wind Speed SE 10 G 21 mph
Barometer 29.94 in (1012.1 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Heat Index88°F (31°C)
Last update 10 Oct 5:51 pm CDT
Extended Forecast for

San Antonio International Airport TX

  • Tonight

    Tonight: Mostly clear, with a low around 69. South southeast wind around 5 mph.

    Low: 69 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny, with a high near 92. South southeast wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.

    High: 92 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 72. Southeast wind 5 to 15 mph, with gusts as high as 25 mph.

    Low: 72 °F

    Increasing
    Clouds

  • Columbus Day

    Columbus Day: Partly sunny, with a high near 93. Heat index values as high as 101. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 93 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 76. Southeast wind around 10 mph, with gusts as high as 20 mph.

    Low: 76 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 95. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 95 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 76. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 76 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 94. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 94 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A slight chance of showers, with thunderstorms also possible after 1am. Partly cloudy, with a low around 75. Southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    Low: 75 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

Detailed Forecast

Tonight
Mostly clear, with a low around 69. South southeast wind around 5 mph.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 92. South southeast wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.
Sunday Night
Increasing clouds, with a low around 72. Southeast wind 5 to 15 mph, with gusts as high as 25 mph.
Columbus Day
Partly sunny, with a high near 93. Heat index values as high as 101. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Monday Night
Partly cloudy, with a low around 76. Southeast wind around 10 mph, with gusts as high as 20 mph.
Tuesday
Partly sunny, with a high near 95. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
Partly cloudy, with a low around 76. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 94. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday Night
A slight chance of showers, with thunderstorms also possible after 1am. Partly cloudy, with a low around 75. Southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Thursday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 90.
Thursday Night
A 30 percent chance of showers. Partly cloudy, with a low around 69.
Friday
A 20 percent chance of showers. Mostly sunny, with a high near 84.
Friday Night
Partly cloudy, with a low around 64.
Saturday
Mostly sunny, with a high near 79.
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 ft)
Last Update:
6:44 pm CDT Oct 10, 2026
Forecast Valid:
7pm CDT Oct 10, 2026-6pm CDT Oct 17, 2026
 
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