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.

Mostly Cloudy

89°F

32°C

Humidity 55%
Wind Speed SW 10 G 26 mph
Barometer 30.01 in (1014.2 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index95°F (35°C)
Last update 21 Jun 1:51 pm CDT
Extended Forecast for

San Antonio International Airport TX

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93. Heat index values as high as 100. South southeast wind around 15 mph, with gusts as high as 25 mph.

    High: 93 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 75. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 75 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 94. Heat index values as high as 100. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 94 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 75. Southeast wind 5 to 15 mph, with gusts as high as 25 mph.

    Low: 75 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 93. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 93 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 73. Southeast wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 73 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 93. Light east southeast wind increasing to 5 to 10 mph in the morning.

    High: 93 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 73. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 73 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 93. Light east southeast wind becoming southeast 5 to 10 mph in the morning.

    High: 93 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93. Heat index values as high as 100. South southeast wind around 15 mph, with gusts as high as 25 mph.
Tonight
A 20 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 75. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday
Mostly sunny, with a high near 94. Heat index values as high as 100. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Partly cloudy, with a low around 75. Southeast wind 5 to 15 mph, with gusts as high as 25 mph.
Monday
Mostly sunny, with a high near 93. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 73. Southeast wind 5 to 15 mph, with gusts as high as 20 mph.
Tuesday
Mostly sunny, with a high near 93. Light east southeast wind increasing to 5 to 10 mph in the morning.
Tuesday Night
Mostly clear, with a low around 73. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday
Mostly sunny, with a high near 93. Light east southeast wind becoming southeast 5 to 10 mph in the morning.
Wednesday Night
Partly cloudy, with a low around 74.
Thursday
Mostly sunny, with a high near 94.
Thursday Night
Partly cloudy, with a low around 73.
Friday
Mostly sunny, with a high near 93.
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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:
1:38 pm CDT Jun 21, 2025
Forecast Valid:
2pm CDT Jun 21, 2025-6pm CDT Jun 27, 2025
 
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