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.

Fair

95°F

35°C

Humidity 35%
Wind Speed Vrbl 7 mph
Barometer 29.86 in (1009.2 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Heat Index96°F (36°C)
Last update 27 Sep 3:51 pm CDT
Extended Forecast for

Alamo Heights TX

  • Tonight

    Tonight: Partly cloudy, with a low around 75. East southeast wind around 5 mph.

    Low: 75 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 96. Heat index values as high as 102. Light east wind becoming east southeast 5 to 10 mph in the afternoon.

    High: 96 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 75. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 75 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers. Partly sunny, with a high near 94. Heat index values as high as 102. South southeast wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 94 °F

    Slight Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 76. Southeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.

    Low: 76 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 10am, then a chance of showers and thunderstorms after 10am. Mostly cloudy, with a high near 96. South southeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.

    High: 96 °F

    Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 75. Southeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.

    Low: 75 °F

    Chance
    T-storms then
    Showers

  • Thursday

    Thursday: Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 88. South wind 5 to 10 mph becoming east in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 90%.

    High: 88 °F

    Heavy Rain

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 72. East wind 5 to 10 mph. Chance of precipitation is 80%.

    Low: 72 °F

    Heavy Rain

Detailed Forecast

Tonight
Partly cloudy, with a low around 75. East southeast wind around 5 mph.
Monday
Mostly sunny, with a high near 96. Heat index values as high as 102. Light east wind becoming east southeast 5 to 10 mph in the afternoon.
Monday Night
Mostly cloudy, with a low around 75. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday
A 20 percent chance of showers. Partly sunny, with a high near 94. Heat index values as high as 102. South southeast wind 5 to 15 mph, with gusts as high as 20 mph.
Tuesday Night
A chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 76. Southeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Wednesday
A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 10am, then a chance of showers and thunderstorms after 10am. Mostly cloudy, with a high near 96. South southeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.
Wednesday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 75. Southeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.
Thursday
Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 88. South wind 5 to 10 mph becoming east in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 90%.
Thursday Night
Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 72. East wind 5 to 10 mph. Chance of precipitation is 80%.
Friday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 82. Chance of precipitation is 70%.
Friday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68.
Saturday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 80.
Saturday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 68.
Sunday
A 30 percent chance of showers. Partly sunny, with a high near 82.
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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:
2:46 pm CDT Sep 27, 2026
Forecast Valid:
4pm CDT Sep 27, 2026-6pm CDT Oct 4, 2026
 
Forecast Discussion
 
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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