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

75°F

24°C

Humidity 90%
Wind Speed SE 6 mph
Barometer 30.18 in (1020.0 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Last update 29 Jul 5:51 am CDT
Extended Forecast for

San Antonio TX

  • Today

    Today: Sunny and hot, with a high near 99. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 99 °F

    Hot

  • Tonight

    Tonight: Mostly clear, with a low around 73. Southeast wind around 5 mph becoming calm in the evening.

    Low: 73 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny and hot, with a high near 100. Calm wind becoming south southeast around 5 mph in the afternoon.

    High: 100 °F

    Hot

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 76. South southeast wind around 5 mph.

    Low: 76 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny and hot, with a high near 99. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 99 °F

    Hot

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 78. East southeast wind 5 to 10 mph becoming south after midnight.

    Low: 78 °F

    Partly Cloudy

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 97. Calm wind becoming east southeast around 5 mph in the afternoon.

    High: 97 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: Partly cloudy, with a low around 78. East southeast wind around 5 mph.

    Low: 78 °F

    Partly Cloudy

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 97. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 97 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

Today
Sunny and hot, with a high near 99. Calm wind becoming southeast around 5 mph in the afternoon.
Tonight
Mostly clear, with a low around 73. Southeast wind around 5 mph becoming calm in the evening.
Wednesday
Mostly sunny and hot, with a high near 100. Calm wind becoming south southeast around 5 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 76. South southeast wind around 5 mph.
Thursday
Mostly sunny and hot, with a high near 99. Calm wind becoming southeast around 5 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 78. East southeast wind 5 to 10 mph becoming south after midnight.
Friday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 97. Calm wind becoming east southeast around 5 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 78. East southeast wind around 5 mph.
Saturday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 97. Calm wind becoming southeast around 5 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 78.
Sunday
Mostly sunny, with a high near 96.
Sunday Night
Partly cloudy, with a low around 78.
Monday
Mostly sunny, with a high near 98.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
San Antonio TX
 29.44°N 98.5°W (Elev. 650 ft)
Last Update:
5:42 am CDT Jul 29, 2025
Forecast Valid:
6am CDT Jul 29, 2025-6pm CDT Aug 4, 2025
 
Forecast Discussion
 
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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