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 88%
Wind Speed S 10 mph
Barometer 29.74 in (1005.3 mb)
Dewpoint 72°F (22°C)
Visibility 7.00 mi
Heat Index76°F (24°C)
Last update 25 Apr 1:51 am CDT
Extended Forecast for

San Antonio TX

  • Overnight

    Overnight: Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 71. South southwest wind around 5 mph.

    Low: 71 °F

    Patchy Fog

  • Saturday

    Saturday: Patchy fog before 10am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 92. Calm wind becoming south southeast around 5 mph in the morning.

    High: 92 °F

    Patchy Fog
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms before 10pm. Increasing clouds, with a low around 70. South southeast wind around 5 mph.

    Low: 70 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 93. Heat index values as high as 100. South wind around 5 mph.

    High: 93 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 72. South southeast wind 5 to 10 mph.

    Low: 72 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 95. South wind around 5 mph.

    High: 95 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 74. Southeast wind around 5 mph.

    Low: 74 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 97. South wind 5 to 10 mph.

    High: 97 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 72. Southeast wind 5 to 10 mph.

    Low: 72 °F

    Partly Cloudy

Detailed Forecast

Overnight
Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 71. South southwest wind around 5 mph.
Saturday
Patchy fog before 10am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 92. Calm wind becoming south southeast around 5 mph in the morning.
Saturday Night
A 20 percent chance of showers and thunderstorms before 10pm. Increasing clouds, with a low around 70. South southeast wind around 5 mph.
Sunday
Mostly cloudy, with a high near 93. Heat index values as high as 100. South wind around 5 mph.
Sunday Night
Mostly cloudy, with a low around 72. South southeast wind 5 to 10 mph.
Monday
Partly sunny, with a high near 95. South wind around 5 mph.
Monday Night
Mostly cloudy, with a low around 74. Southeast wind around 5 mph.
Tuesday
Partly sunny, with a high near 97. South wind 5 to 10 mph.
Tuesday Night
Partly cloudy, with a low around 72. Southeast wind 5 to 10 mph.
Wednesday
Partly sunny, with a high near 93.
Wednesday Night
Mostly cloudy, with a low around 69.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 87.
Thursday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68.
Friday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 81.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
San Antonio TX
 29.46°N 98.5°W (Elev. 741 ft)
Last Update:
1:24 am CDT Apr 25, 2026
Forecast Valid:
2am CDT Apr 25, 2026-6pm CDT May 1, 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