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.

A Few Clouds

78°F

26°C

Humidity 69%
Wind Speed SE 14 mph
Barometer 29.90 in (1010.7 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 22 Apr 8:51 pm CDT
Extended Forecast for

San Antonio International Airport TX

  • Tonight

    Tonight: Mostly cloudy, with a low around 68. South southeast wind around 5 mph.

    Low: 68 °F

    Mostly Cloudy

  • Thursday

    Thursday: Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 83. South wind 5 to 10 mph.

    High: 83 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 69. South southeast wind 5 to 10 mph.

    Low: 69 °F

    Mostly Cloudy

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 85. South wind around 5 mph.

    High: 85 °F

    Cloudy then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: Partly cloudy, with a low around 70. South southeast wind around 5 mph.

    Low: 70 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 89. South southeast wind around 5 mph.

    High: 89 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 70. Southeast wind around 5 mph.

    Low: 70 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 91. South wind 5 to 10 mph.

    High: 91 °F

    Mostly Cloudy

  • Sunday Night

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

    Low: 71 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 68. South southeast wind around 5 mph.
Thursday
Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 83. South wind 5 to 10 mph.
Thursday Night
Mostly cloudy, with a low around 69. South southeast wind 5 to 10 mph.
Friday
A 20 percent chance of showers and thunderstorms after 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 85. South wind around 5 mph.
Friday Night
Partly cloudy, with a low around 70. South southeast wind around 5 mph.
Saturday
Mostly cloudy, with a high near 89. South southeast wind around 5 mph.
Saturday Night
Partly cloudy, with a low around 70. Southeast wind around 5 mph.
Sunday
Mostly cloudy, with a high near 91. South wind 5 to 10 mph.
Sunday Night
Mostly cloudy, with a low around 71. South southeast wind around 10 mph.
Monday
Partly sunny, with a high near 92.
Monday Night
Partly cloudy, with a low around 70.
Tuesday
Partly sunny, with a high near 93.
Tuesday Night
Mostly cloudy, with a low around 71.
Wednesday
Mostly cloudy, with a high near 92.
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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:
6:44 pm CDT Apr 22, 2026
Forecast Valid:
9pm CDT Apr 22, 2026-6pm CDT Apr 29, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation