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

84°F

29°C

Humidity 51%
Wind Speed Vrbl 7 mph
Barometer 29.91 in (1010.9 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 15 Apr 4:51 pm CDT
Extended Forecast for

San Antonio TX

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 84. South wind around 10 mph.

    High: 84 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 10pm. Increasing clouds, with a low around 70. South southeast wind 5 to 10 mph.

    Low: 70 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Thursday

    Thursday: Cloudy, then gradually becoming mostly sunny, with a high near 90. South southeast wind 5 to 10 mph.

    High: 90 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 69. South southeast wind around 10 mph, with gusts as high as 20 mph.

    Low: 69 °F

    Increasing
    Clouds

  • Friday

    Friday: Partly sunny, with a high near 90. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 90 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 69. South southeast wind 5 to 15 mph, with gusts as high as 25 mph.

    Low: 69 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly cloudy, with a high near 79. Southeast wind 5 to 15 mph becoming north northeast in the afternoon. Winds could gust as high as 25 mph.

    High: 79 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 56. North northeast wind around 15 mph, with gusts as high as 30 mph.

    Low: 56 °F

    Chance
    T-storms

  • Sunday

    Sunday: A 20 percent chance of showers. Mostly cloudy, with a high near 68. Northeast wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 68 °F

    Slight Chance
    Showers

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 84. South wind around 10 mph.
Tonight
A 20 percent chance of showers and thunderstorms before 10pm. Increasing clouds, with a low around 70. South southeast wind 5 to 10 mph.
Thursday
Cloudy, then gradually becoming mostly sunny, with a high near 90. South southeast wind 5 to 10 mph.
Thursday Night
Increasing clouds, with a low around 69. South southeast wind around 10 mph, with gusts as high as 20 mph.
Friday
Partly sunny, with a high near 90. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Friday Night
Mostly cloudy, with a low around 69. South southeast wind 5 to 15 mph, with gusts as high as 25 mph.
Saturday
A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly cloudy, with a high near 79. Southeast wind 5 to 15 mph becoming north northeast in the afternoon. Winds could gust as high as 25 mph.
Saturday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 56. North northeast wind around 15 mph, with gusts as high as 30 mph.
Sunday
A 20 percent chance of showers. Mostly cloudy, with a high near 68. Northeast wind 10 to 15 mph, with gusts as high as 30 mph.
Sunday Night
A 30 percent chance of showers and thunderstorms. Cloudy, with a low around 58.
Monday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 66.
Monday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 59.
Tuesday
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 76.
Tuesday Night
Mostly cloudy, with a low around 65.
Wednesday
Mostly cloudy, with a high near 83.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
San Antonio TX
 29.44°N 98.5°W (Elev. 650 ft)
Last Update:
5:32 pm CDT Apr 15, 2026
Forecast Valid:
5pm CDT Apr 15, 2026-6pm CDT Apr 22, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation