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.

Overcast

82°F

28°C

Humidity 79%
Wind Speed S 6 mph
Barometer 30.11 in (1017.7 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 16 Jul 11:51 am CDT
Extended Forecast for

San Antonio TX

  • This Afternoon

    This Afternoon: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 86. South southeast wind around 10 mph, with gusts as high as 20 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 86 °F

    Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms before 4am, then a slight chance of showers. Increasing clouds, with a low around 76. Southeast wind around 10 mph. Chance of precipitation is 30%.

    Low: 76 °F

    Chance
    T-storms

  • Friday

    Friday: Partly sunny, with a high near 89. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 89 °F

    Partly Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 76. Southeast wind around 10 mph, with gusts as high as 20 mph.

    Low: 76 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Partly sunny, with a high near 91. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 91 °F

    Partly Sunny

  • Saturday Night

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

    Low: 76 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 93. South southeast wind 5 to 10 mph.

    High: 93 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 74. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 74 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 93. South wind around 5 mph.

    High: 93 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 86. South southeast wind around 10 mph, with gusts as high as 20 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A chance of showers and thunderstorms before 4am, then a slight chance of showers. Increasing clouds, with a low around 76. Southeast wind around 10 mph. Chance of precipitation is 30%.
Friday
Partly sunny, with a high near 89. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Friday Night
Increasing clouds, with a low around 76. Southeast wind around 10 mph, with gusts as high as 20 mph.
Saturday
Partly sunny, with a high near 91. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday Night
Partly cloudy, with a low around 76. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Sunday
Mostly sunny, with a high near 93. South southeast wind 5 to 10 mph.
Sunday Night
Mostly clear, with a low around 74. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Monday
Mostly sunny, with a high near 93. South wind around 5 mph.
Monday Night
Mostly clear, with a low around 73.
Tuesday
Sunny, with a high near 94.
Tuesday Night
Clear, with a low around 74.
Wednesday
Sunny, with a high near 95.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
San Antonio TX
 29.46°N 98.5°W (Elev. 741 ft)
Last Update:
11:32 am CDT Jul 16, 2026
Forecast Valid:
12pm CDT Jul 16, 2026-6pm CDT Jul 22, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation