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

81°F

27°C

Humidity 74%
Wind Speed SE 17 G 32 mph
Barometer 29.73 in (1004.9 mb)
Dewpoint 72°F (22°C)
Visibility 9.00 mi
Heat Index85°F (29°C)
Last update 26 Apr 8:51 pm CDT
Extended Forecast for

San Antonio TX

  • Tonight

    Tonight: Mostly cloudy, with a low around 74. Southeast wind 5 to 10 mph.

    Low: 74 °F

    Mostly Cloudy

  • Monday

    Monday: Cloudy through mid morning, then gradual clearing, with a high near 93. Heat index values as high as 102. South southeast wind around 5 mph.

    High: 93 °F

    Gradual
    Clearing

  • Monday Night

    Monday Night: Increasing clouds, with a low around 74. Southeast wind 5 to 10 mph.

    Low: 74 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Cloudy, then gradually becoming mostly sunny, with a high near 96. Heat index values as high as 104. South wind 5 to 10 mph.

    High: 96 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 72. South southeast wind 5 to 10 mph.

    Low: 72 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 95. East wind 5 to 10 mph.

    High: 95 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70. East northeast wind around 10 mph, with gusts as high as 20 mph.

    Low: 70 °F

    Slight Chance
    T-storms

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 86. East wind around 10 mph, with gusts as high as 20 mph.

    High: 86 °F

    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69. East wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 69 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Mostly cloudy, with a low around 74. Southeast wind 5 to 10 mph.
Monday
Cloudy through mid morning, then gradual clearing, with a high near 93. Heat index values as high as 102. South southeast wind around 5 mph.
Monday Night
Increasing clouds, with a low around 74. Southeast wind 5 to 10 mph.
Tuesday
Cloudy, then gradually becoming mostly sunny, with a high near 96. Heat index values as high as 104. South wind 5 to 10 mph.
Tuesday Night
Mostly cloudy, with a low around 72. South southeast wind 5 to 10 mph.
Wednesday
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 95. East wind 5 to 10 mph.
Wednesday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70. East northeast wind around 10 mph, with gusts as high as 20 mph.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 86. East wind around 10 mph, with gusts as high as 20 mph.
Thursday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69. East wind 10 to 15 mph, with gusts as high as 25 mph.
Friday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 80.
Friday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 60.
Saturday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 75.
Saturday Night
A 20 percent chance of showers. Partly cloudy, with a low around 56.
Sunday
Mostly sunny, with a high near 77.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
San Antonio TX
 29.46°N 98.5°W (Elev. 741 ft)
Last Update:
9:44 pm CDT Apr 26, 2026
Forecast Valid:
9pm CDT Apr 26, 2026-6pm CDT May 3, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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