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

81°F

27°C

Humidity 65%
Wind Speed SE 15 G 21 mph
Barometer 29.75 in (1005.6 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 23 Apr 5:51 pm CDT
Extended Forecast for

San Antonio TX

  • Tonight

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

    Low: 72 °F

    Mostly Cloudy

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 86. South wind around 5 mph.

    High: 86 °F

    Cloudy then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms before 10pm. Increasing clouds, with a low around 71. South southeast wind around 5 mph.

    Low: 71 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 91. Calm wind becoming south southeast around 5 mph in the morning.

    High: 91 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 71. South southeast wind around 5 mph.

    Low: 71 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 93. South wind around 5 mph.

    High: 93 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 73. South southeast wind 5 to 10 mph.

    Low: 73 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 94. South wind around 5 mph.

    High: 94 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 73. East southeast wind around 5 mph.

    Low: 73 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 72. South southeast wind 5 to 10 mph.
Friday
A 20 percent chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 86. South wind around 5 mph.
Friday Night
A 20 percent chance of showers and thunderstorms before 10pm. Increasing clouds, with a low around 71. South southeast wind around 5 mph.
Saturday
Partly sunny, with a high near 91. Calm wind becoming south southeast around 5 mph in the morning.
Saturday Night
Partly cloudy, with a low around 71. South southeast wind around 5 mph.
Sunday
Mostly cloudy, with a high near 93. South wind around 5 mph.
Sunday Night
Mostly cloudy, with a low around 73. South southeast wind 5 to 10 mph.
Monday
Mostly cloudy, with a high near 94. South wind around 5 mph.
Monday Night
Mostly cloudy, with a low around 73. East southeast wind around 5 mph.
Tuesday
Mostly cloudy, with a high near 96.
Tuesday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72.
Wednesday
Mostly cloudy, with a high near 93.
Wednesday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71.
Thursday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 90.
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:
5:32 pm CDT Apr 23, 2026
Forecast Valid:
6pm CDT Apr 23, 2026-6pm CDT Apr 30, 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