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

84°F

29°C

Humidity 48%
Wind Speed SE 17 G 23 mph
Barometer 29.94 in (1012.2 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 3 Mar 2:51 pm CST
Extended Forecast for

San Antonio TX

  • This Afternoon

    This Afternoon: Sunny, with a high near 87. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 87 °F

    Sunny

  • Tonight

    Tonight: A slight chance of drizzle after midnight. Increasing clouds, with a low around 69. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 69 °F

    Partly Cloudy
    then Slight
    Chance
    Drizzle

  • Wednesday

    Wednesday: A slight chance of drizzle and thunderstorms before 9am, then a chance of showers and thunderstorms after noon. Cloudy, then gradually becoming mostly sunny, with a high near 86. South southeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.

    High: 86 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before midnight, then a chance of showers between midnight and 3am, then a chance of showers and thunderstorms after 3am. Mostly cloudy, with a low around 68. South southeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.

    Low: 68 °F

    Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: A 30 percent chance of showers before noon. Partly sunny, with a high near 87. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 87 °F

    Chance
    Showers then
    Mostly Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of showers after midnight. Mostly cloudy, with a low around 68. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 68 °F

    Mostly Cloudy
    then Chance
    Showers

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 85. South southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.

    High: 85 °F

    Chance
    Showers then
    Chance
    T-storms

  • Friday Night

    Friday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Southeast wind 5 to 10 mph.

    Low: 69 °F

    Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: A chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 85. Southeast wind 5 to 10 mph. Chance of precipitation is 70%.

    High: 85 °F

    Showers
    Likely

Detailed Forecast

This Afternoon
Sunny, with a high near 87. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Tonight
A slight chance of drizzle after midnight. Increasing clouds, with a low around 69. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday
A slight chance of drizzle and thunderstorms before 9am, then a chance of showers and thunderstorms after noon. Cloudy, then gradually becoming mostly sunny, with a high near 86. South southeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
Wednesday Night
A chance of showers and thunderstorms before midnight, then a chance of showers between midnight and 3am, then a chance of showers and thunderstorms after 3am. Mostly cloudy, with a low around 68. South southeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
Thursday
A 30 percent chance of showers before noon. Partly sunny, with a high near 87. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Thursday Night
A 30 percent chance of showers after midnight. Mostly cloudy, with a low around 68. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Friday
A chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 85. South southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.
Friday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Southeast wind 5 to 10 mph.
Saturday
A chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 85. Southeast wind 5 to 10 mph. Chance of precipitation is 70%.
Saturday Night
Showers and possibly a thunderstorm. Low around 66. Chance of precipitation is 80%.
Sunday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 80. Chance of precipitation is 70%.
Sunday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65.
Monday
A 30 percent chance of showers. Mostly cloudy, with a high near 83.
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ABOUT THIS FORECAST

 
Point Forecast:
San Antonio TX
 29.46°N 98.5°W (Elev. 741 ft)
Last Update:
2:44 pm CST Mar 3, 2026
Forecast Valid:
3pm CST Mar 3, 2026-6pm CDT Mar 9, 2026
 
Forecast Discussion
 
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Additional Resources

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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