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

Hazardous Weather Conditions

Current conditions at

San Antonio, San Antonio International Airport (KSAT)

Lat: 29.53°NLon: 98.46°WElev: 807ft.

Mostly Cloudy

84°F

29°C

Humidity 67%
Wind Speed NE 8 mph
Barometer 29.92 in (1011.0 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index90°F (32°C)
Last update 23 Jul 6:51 am CDT
Extended Forecast for

San Antonio International Airport TX

Heat Advisory July 23, 07:28am until July 23, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory July 23, 07:28am until July 23, 08:00pm

    NOW until 8:00pm Thu

    Heat Advisory

  • Today

    High: 101 °F

    Hot

  • Tonight

    Tonight: A 30 percent chance of showers, mainly between 10pm and 4am. Increasing clouds, with a low around 80. North wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 80 °F

    Chance
    Showers

  • Friday

    Friday: A 10 percent chance of showers before 7am. Mostly sunny, with a high near 95. Heat index values as high as 101. Northeast wind 5 to 10 mph becoming south southeast in the afternoon. Winds could gust as high as 20 mph.

    High: 95 °F

    Slight Chance
    Showers then
    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 77. South southeast wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 77 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 97. South wind 5 to 10 mph.

    High: 97 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 76. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 76 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 96. South wind around 5 mph.

    High: 96 °F

    Sunny

  • Sunday Night

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

    Low: 76 °F

    Mostly Clear

Detailed Forecast

Today
Sunny and hot, with a high near 101. Heat index values as high as 108. North northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Tonight
A 30 percent chance of showers, mainly between 10pm and 4am. Increasing clouds, with a low around 80. North wind 5 to 15 mph, with gusts as high as 20 mph.
Friday
A 10 percent chance of showers before 7am. Mostly sunny, with a high near 95. Heat index values as high as 101. Northeast wind 5 to 10 mph becoming south southeast in the afternoon. Winds could gust as high as 20 mph.
Friday Night
Partly cloudy, with a low around 77. South southeast wind 5 to 15 mph, with gusts as high as 20 mph.
Saturday
Mostly sunny, with a high near 97. South wind 5 to 10 mph.
Saturday Night
Mostly clear, with a low around 76. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Sunday
Sunny, with a high near 96. South wind around 5 mph.
Sunday Night
Mostly clear, with a low around 76. South southeast wind 5 to 10 mph.
Monday
Sunny, with a high near 97. South wind 5 to 10 mph.
Monday Night
Clear, with a low around 76.
Tuesday
Sunny and hot, with a high near 99.
Tuesday Night
Clear, with a low around 77.
Wednesday
Sunny and hot, with a high near 99.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
San Antonio International Airport TX
 29.53°N 98.48°W (Elev. 817 ft)
Last Update:
6:42 am CDT Jul 23, 2026
Forecast Valid:
7am CDT Jul 23, 2026-6pm CDT Jul 29, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation