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

87°F

31°C

Humidity 45%
Wind Speed S 18 G 25 mph
Barometer 29.80 in (1007.1 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Heat Index88°F (31°C)
Last update 16 May 5:51 pm CDT
Extended Forecast for

2 Miles WNW Balcones Heights TX

  • Tonight

    Tonight: Increasing clouds, with a low around 75. Southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 75 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Mostly cloudy, with a high near 91. South southeast wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 91 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 78. Southeast wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.

    Low: 78 °F

    Slight Chance
    T-storms

  • Monday

    Monday: Mostly cloudy, with a high near 92. Heat index values as high as 100. South southeast wind around 15 mph, with gusts as high as 25 mph.

    High: 92 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 78. Southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 78 °F

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 92. South southeast wind around 10 mph, with gusts as high as 20 mph.

    High: 92 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm before 1am, then a slight chance of showers and thunderstorms after 1am. Low around 74. Southeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.

    Low: 74 °F

    T-storms

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 87. Southeast wind 5 to 10 mph. Chance of precipitation is 70%.

    High: 87 °F

    Chance
    T-storms then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 72. East wind 5 to 10 mph.

    Low: 72 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Increasing clouds, with a low around 75. Southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday
Mostly cloudy, with a high near 91. South southeast wind 10 to 15 mph, with gusts as high as 30 mph.
Sunday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 78. Southeast wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Monday
Mostly cloudy, with a high near 92. Heat index values as high as 100. South southeast wind around 15 mph, with gusts as high as 25 mph.
Monday Night
A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 78. Southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 92. South southeast wind around 10 mph, with gusts as high as 20 mph.
Tuesday Night
Showers and possibly a thunderstorm before 1am, then a slight chance of showers and thunderstorms after 1am. Low around 74. Southeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Wednesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 87. Southeast wind 5 to 10 mph. Chance of precipitation is 70%.
Wednesday Night
A 40 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 72. East wind 5 to 10 mph.
Thursday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 84. Chance of precipitation is 70%.
Thursday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 69. Chance of precipitation is 70%.
Friday
Showers and thunderstorms likely. Mostly cloudy, with a high near 82. Chance of precipitation is 60%.
Friday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69.
Saturday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 83.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WNW Balcones Heights TX
 29.5°N 98.58°W (Elev. 902 ft)
Last Update:
5:44 pm CDT May 16, 2026
Forecast Valid:
5pm CDT May 16, 2026-6pm CDT May 23, 2026
 
Forecast Discussion
 
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Additional Resources

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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