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

76°F

24°C

Humidity 94%
Wind Speed Calm
Barometer 30.04 in (1015.3 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index76°F (24°C)
Last update 19 Sep 7:51 am CDT
Extended Forecast for

Alamo Heights TX

  • Today

    Today: Mostly sunny, with a high near 97. Heat index values as high as 103. Calm wind becoming south southeast around 5 mph in the afternoon.

    High: 97 °F

    Mostly Sunny

  • Tonight

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

    Low: 74 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 97. Heat index values as high as 102. Calm wind becoming south around 5 mph in the afternoon.

    High: 97 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 76. South southeast wind around 5 mph.

    Low: 76 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 98. Calm wind becoming east around 5 mph in the afternoon.

    High: 98 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 76. East southeast wind around 5 mph becoming calm after midnight.

    Low: 76 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 97. Light and variable wind becoming east 5 to 10 mph in the afternoon.

    High: 97 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 76. East southeast wind 5 to 10 mph. Chance of precipitation is 20%.

    Low: 76 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: Mostly sunny, with a high near 97. East wind 5 to 10 mph.

    High: 97 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 97. Heat index values as high as 103. Calm wind becoming south southeast around 5 mph in the afternoon.
Tonight
Mostly clear, with a low around 74. Southeast wind 5 to 10 mph.
Sunday
Mostly sunny, with a high near 97. Heat index values as high as 102. Calm wind becoming south around 5 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 76. South southeast wind around 5 mph.
Monday
Sunny, with a high near 98. Calm wind becoming east around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 76. East southeast wind around 5 mph becoming calm after midnight.
Tuesday
Sunny, with a high near 97. Light and variable wind becoming east 5 to 10 mph in the afternoon.
Tuesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 76. East southeast wind 5 to 10 mph. Chance of precipitation is 20%.
Wednesday
Mostly sunny, with a high near 97. East wind 5 to 10 mph.
Wednesday Night
Partly cloudy, with a low around 76.
Thursday
Mostly sunny, with a high near 97.
Thursday Night
Partly cloudy, with a low around 75.
Friday
Mostly sunny, with a high near 96.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Alamo Heights TX
 29.48°N 98.48°W (Elev. 699 ft)
Last Update:
6:42 am CDT Sep 19, 2026
Forecast Valid:
8am CDT Sep 19, 2026-6pm CDT Sep 25, 2026
 
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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