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

81°F

27°C

Humidity 82%
Wind Speed S 10 mph
Barometer 30.05 in (1015.7 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 15 Jul 8:51 am CDT
Extended Forecast for

San Antonio International Airport TX

Flood Watch July 15, 09:38am until July 15, 01:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch July 15, 09:38am until July 15, 01:00pm

    NOW until 1:00pm Tue

    Flood Watch

  • Today

    High: 94 °F

    Partly Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 76. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 76 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Cloudy through mid morning, then gradual clearing, with a high near 96. Heat index values as high as 103. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 96 °F

    Gradual
    Clearing

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 74. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 74 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 96. South southeast wind around 5 mph.

    High: 96 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 74. South southeast wind 5 to 10 mph.

    Low: 74 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 95. Calm wind becoming south southeast around 5 mph in the afternoon.

    High: 95 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 76. East southeast wind around 5 mph.

    Low: 76 °F

    Partly Cloudy

Detailed Forecast

Today
Partly sunny, with a high near 94. Heat index values as high as 102. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Tonight
Increasing clouds, with a low around 76. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday
Cloudy through mid morning, then gradual clearing, with a high near 96. Heat index values as high as 103. South wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
Partly cloudy, with a low around 74. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday
Mostly sunny, with a high near 96. South southeast wind around 5 mph.
Thursday Night
Partly cloudy, with a low around 74. South southeast wind 5 to 10 mph.
Friday
Mostly sunny, with a high near 95. Calm wind becoming south southeast around 5 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 76. East southeast wind around 5 mph.
Saturday
Mostly sunny, with a high near 97. Calm wind becoming south around 5 mph in the morning.
Saturday Night
Partly cloudy, with a low around 76.
Sunday
Mostly sunny, with a high near 98.
Sunday Night
Partly cloudy, with a low around 76.
Monday
Mostly sunny and hot, with a high near 99.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
San Antonio International Airport TX
 29.53°N 98.45°W (Elev. 771 ft)
Last Update:
7:44 am CDT Jul 15, 2025
Forecast Valid:
9am CDT Jul 15, 2025-6pm CDT Jul 21, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation