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.

Partly Cloudy

87°F

31°C

Humidity 53%
Wind Speed SE 15 mph
Barometer 29.70 in (1003.7 mb)
Dewpoint 68°F (20°C)
Visibility 7.00 mi
Heat Index90°F (32°C)
Last update 25 Apr 4:51 pm CDT
Extended Forecast for

San Antonio International Airport TX

  • This Afternoon

    This Afternoon: A 10 percent chance of showers and thunderstorms. Sunny, with a high near 91. South southeast wind around 5 mph.

    High: 91 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 71. South southeast wind around 5 mph.

    Low: 71 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Sunday

    Sunday: Cloudy, then gradually becoming mostly sunny, with a high near 93. Heat index values as high as 100. South wind around 5 mph.

    High: 93 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 71. South southeast wind 5 to 10 mph.

    Low: 71 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 95. South wind around 5 mph.

    High: 95 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 73. Southeast wind around 5 mph.

    Low: 73 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 97. South wind 5 to 10 mph.

    High: 97 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 71. South southeast wind 5 to 10 mph.

    Low: 71 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 94. Calm wind becoming east southeast around 5 mph in the morning.

    High: 94 °F

    Partly Sunny

Detailed Forecast

This Afternoon
A 10 percent chance of showers and thunderstorms. Sunny, with a high near 91. South southeast wind around 5 mph.
Tonight
A 10 percent chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 71. South southeast wind around 5 mph.
Sunday
Cloudy, then gradually becoming mostly sunny, with a high near 93. Heat index values as high as 100. South wind around 5 mph.
Sunday Night
Mostly cloudy, with a low around 71. South southeast wind 5 to 10 mph.
Monday
Partly sunny, with a high near 95. South wind around 5 mph.
Monday Night
Mostly cloudy, with a low around 73. Southeast wind around 5 mph.
Tuesday
Partly sunny, with a high near 97. South wind 5 to 10 mph.
Tuesday Night
Partly cloudy, with a low around 71. South southeast wind 5 to 10 mph.
Wednesday
Partly sunny, with a high near 94. Calm wind becoming east southeast around 5 mph in the morning.
Wednesday Night
Mostly cloudy, with a low around 69.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 87.
Thursday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68.
Friday
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 84.
Friday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 57.
Saturday
A slight chance of showers. Partly sunny, with a high near 74.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
San Antonio International Airport TX
 29.53°N 98.48°W (Elev. 817 ft)
Last Update:
4:34 pm CDT Apr 25, 2026
Forecast Valid:
5pm CDT Apr 25, 2026-6pm CDT May 2, 2026
 
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Additional Resources

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