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

82°F

28°C

Humidity 77%
Wind Speed S 3 mph
Barometer 30.16 in (1019.3 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index88°F (31°C)
Last update 2 Aug 8:51 am CDT
Extended Forecast for

San Antonio TXSimilar City Names

  • Today

    Today: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 100. Heat index values as high as 107. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 100 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 78. Northeast wind around 5 mph becoming calm after midnight.

    Low: 78 °F

    Slight Chance
    T-storms

  • Sunday

    Sunday: Sunny and hot, with a high near 101. Heat index values as high as 107. East wind around 5 mph becoming south in the afternoon.

    High: 101 °F

    Hot

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 78. East wind 5 to 10 mph becoming south southeast after midnight.

    Low: 78 °F

    Mostly Clear

  • Monday

    Monday: A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Mostly sunny and hot, with a high near 99. South southeast wind around 5 mph. Chance of precipitation is 20%.

    High: 99 °F

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A slight chance of thunderstorms before 7pm. Partly cloudy, with a low around 77. East southeast wind 5 to 10 mph. Chance of precipitation is 10%.

    Low: 77 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 97. South southeast wind 5 to 10 mph.

    High: 97 °F

    Sunny

  • Tuesday Night

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

    Low: 76 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 98. South wind around 5 mph.

    High: 98 °F

    Sunny

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 100. Heat index values as high as 107. Calm wind becoming northeast around 5 mph in the afternoon.
Tonight
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 78. Northeast wind around 5 mph becoming calm after midnight.
Sunday
Sunny and hot, with a high near 101. Heat index values as high as 107. East wind around 5 mph becoming south in the afternoon.
Sunday Night
Mostly clear, with a low around 78. East wind 5 to 10 mph becoming south southeast after midnight.
Monday
A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Mostly sunny and hot, with a high near 99. South southeast wind around 5 mph. Chance of precipitation is 20%.
Monday Night
A slight chance of thunderstorms before 7pm. Partly cloudy, with a low around 77. East southeast wind 5 to 10 mph. Chance of precipitation is 10%.
Tuesday
Sunny, with a high near 97. South southeast wind 5 to 10 mph.
Tuesday Night
Mostly clear, with a low around 76. South southeast wind 5 to 10 mph.
Wednesday
Sunny, with a high near 98. South wind around 5 mph.
Wednesday Night
Mostly clear, with a low around 77.
Thursday
Sunny, with a high near 98.
Thursday Night
Mostly clear, with a low around 77.
Friday
Sunny, with a high near 98.
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ABOUT THIS FORECAST

 
Point Forecast:
San Antonio TXSimilar City Names
 29.46°N 98.5°W (Elev. 741 ft)
Last Update:
7:42 am CDT Aug 2, 2025
Forecast Valid:
8am CDT Aug 2, 2025-6pm CDT Aug 8, 2025
 
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Additional Resources

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