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

Hazardous Weather Conditions

Current conditions at

San Antonio, Stinson Municipal Airport (KSSF)

Lat: 29.34°NLon: 98.47°WElev: 574ft.

A Few Clouds

103°F

39°C

Humidity 28%
Wind Speed SE 13 G 17 mph
Barometer 29.94 in (1012.2 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Heat Index106°F (41°C)
Last update 21 Aug 5:53 pm CDT
Extended Forecast for

5 Miles ESE San Antonio, Stinson Municipal Airport TX

Heat Advisory August 21, 06:19pm until August 23, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 21, 06:19pm until August 23, 07:00pm

    NOW until 7:00pm Sun

    Heat Advisory

  • Tonight

    Low: 76 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 104. Heat index values as high as 107. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 104 °F

    Hot

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 76. South southeast wind 5 to 10 mph.

    Low: 76 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 104. Light and variable wind becoming southeast 5 to 10 mph in the afternoon.

    High: 104 °F

    Hot

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 76. South southeast wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 76 °F

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 102. South southwest wind 5 to 10 mph.

    High: 102 °F

    Hot

  • Monday Night

    Monday Night: Clear, with a low around 75. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 75 °F

    Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 104. South wind 5 to 10 mph.

    High: 104 °F

    Hot

Detailed Forecast

Tonight
Mostly clear, with a low around 76. South southeast wind 5 to 10 mph.
Saturday
Sunny and hot, with a high near 104. Heat index values as high as 107. Calm wind becoming southeast around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 76. South southeast wind 5 to 10 mph.
Sunday
Sunny and hot, with a high near 104. Light and variable wind becoming southeast 5 to 10 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 76. South southeast wind 5 to 15 mph, with gusts as high as 20 mph.
Monday
Sunny and hot, with a high near 102. South southwest wind 5 to 10 mph.
Monday Night
Clear, with a low around 75. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday
Sunny and hot, with a high near 104. South wind 5 to 10 mph.
Tuesday Night
Clear, with a low around 76. Southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday
Sunny and hot, with a high near 102.
Wednesday Night
Clear, with a low around 77.
Thursday
Sunny and hot, with a high near 102.
Thursday Night
Mostly clear, with a low around 77.
Friday
Sunny and hot, with a high near 101.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles ESE San Antonio, Stinson Municipal Airport TX
 29.3°N 98.4°W (Elev. 561 ft)
Last Update:
5:32 pm CDT Aug 21, 2026
Forecast Valid:
6pm CDT Aug 21, 2026-6pm CDT Aug 28, 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