National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

San Antonio, San Antonio International Airport (KSAT)

Lat: 29.53°NLon: 98.46°WElev: 807ft.

Partly Cloudy

98°F

37°C

Humidity 29%
Wind Speed S 5 mph
Barometer 29.93 in (1011.5 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Heat Index98°F (37°C)
Last update 26 Aug 6:51 pm CDT
Extended Forecast for

2 Miles SE San Antonio TX

Heat Advisory August 26, 07:36pm until August 27, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 26, 07:36pm until August 27, 07:00pm

    NOW until 7:00pm Thu

    Heat Advisory

  • Tonight

    Low: 80 °F

    Mostly Clear

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms, mainly after 4pm. Sunny and hot, with a high near 101. Heat index values as high as 109. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 101 °F

    Sunny then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 1am, then a slight chance of showers after 4am. Partly cloudy, with a low around 79. South southeast wind around 5 mph becoming southwest in the evening. Chance of precipitation is 30%.

    Low: 79 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Friday

    Friday: A 10 percent chance of showers before 7am. Mostly sunny and hot, with a high near 99. Heat index values as high as 109. Calm wind becoming east around 5 mph in the afternoon.

    High: 99 °F

    Slight Chance
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 78. East southeast wind 5 to 10 mph.

    Low: 78 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny and hot, with a high near 99. Calm wind becoming east southeast around 5 mph in the afternoon.

    High: 99 °F

    Hot

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 76. South southeast wind 5 to 10 mph.

    Low: 76 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 98. South southeast wind 5 to 10 mph.

    High: 98 °F

    Sunny

Detailed Forecast

Tonight
Mostly clear, with a low around 80. South southwest wind around 5 mph.
Thursday
A 30 percent chance of showers and thunderstorms, mainly after 4pm. Sunny and hot, with a high near 101. Heat index values as high as 109. Calm wind becoming northeast around 5 mph in the afternoon.
Thursday Night
A chance of showers and thunderstorms before 1am, then a slight chance of showers after 4am. Partly cloudy, with a low around 79. South southeast wind around 5 mph becoming southwest in the evening. Chance of precipitation is 30%.
Friday
A 10 percent chance of showers before 7am. Mostly sunny and hot, with a high near 99. Heat index values as high as 109. Calm wind becoming east around 5 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 78. East southeast wind 5 to 10 mph.
Saturday
Sunny and hot, with a high near 99. Calm wind becoming east southeast around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 76. South southeast wind 5 to 10 mph.
Sunday
Sunny, with a high near 98. South southeast wind 5 to 10 mph.
Sunday Night
Mostly clear, with a low around 77. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Monday
Mostly sunny, with a high near 98.
Monday Night
Mostly clear, with a low around 77.
Tuesday
Mostly sunny and hot, with a high near 99.
Tuesday Night
Mostly clear, with a low around 77.
Wednesday
Sunny and hot, with a high near 99.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SE San Antonio TX
 29.44°N 98.48°W (Elev. 663 ft)
Last Update:
7:28 pm CDT Aug 26, 2026
Forecast Valid:
7pm CDT Aug 26, 2026-6pm CDT Sep 2, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation