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.

Light Rain Fog/Mist

64°F

18°C

Humidity 96%
Wind Speed NE 5 mph
Barometer 30.04 in (1015.8 mb)
Dewpoint 63°F (17°C)
Visibility 1.00 mi
Last update 22 Apr 2:51 am CDT
Extended Forecast for

San Antonio TX

  • Overnight

    Overnight: A 30 percent chance of showers. Areas of fog. Otherwise, cloudy, with a low around 66. East southeast wind around 5 mph.

    Low: 66 °F

    Chance
    Showers and
    Areas Fog

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after 1pm. Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 82. South southeast wind around 5 mph. Chance of precipitation is 30%.

    High: 82 °F

    Chance
    Showers and
    Patchy Fog
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 10 percent chance of showers and thunderstorms before 7pm. Mostly cloudy, with a low around 68. Southeast wind 5 to 10 mph.

    Low: 68 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 85. South wind 5 to 10 mph.

    High: 85 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 70. South southeast wind 5 to 10 mph.

    Low: 70 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 86. South wind around 5 mph.

    High: 86 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 71. South southeast wind around 5 mph.

    Low: 71 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 90. South southeast wind around 5 mph.

    High: 90 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 71. Southeast wind around 5 mph.

    Low: 71 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 30 percent chance of showers. Areas of fog. Otherwise, cloudy, with a low around 66. East southeast wind around 5 mph.
Wednesday
A chance of showers, with thunderstorms also possible after 1pm. Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 82. South southeast wind around 5 mph. Chance of precipitation is 30%.
Wednesday Night
A 10 percent chance of showers and thunderstorms before 7pm. Mostly cloudy, with a low around 68. Southeast wind 5 to 10 mph.
Thursday
Mostly cloudy, with a high near 85. South wind 5 to 10 mph.
Thursday Night
Mostly cloudy, with a low around 70. South southeast wind 5 to 10 mph.
Friday
Mostly cloudy, with a high near 86. South wind around 5 mph.
Friday Night
Mostly cloudy, with a low around 71. South southeast wind around 5 mph.
Saturday
Partly sunny, with a high near 90. South southeast wind around 5 mph.
Saturday Night
Partly cloudy, with a low around 71. Southeast wind around 5 mph.
Sunday
Mostly cloudy, with a high near 91.
Sunday Night
Mostly cloudy, with a low around 72.
Monday
Partly sunny, with a high near 93.
Monday Night
Partly cloudy, with a low around 70.
Tuesday
Partly sunny, with a high near 93.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
San Antonio TX
 29.46°N 98.5°W (Elev. 741 ft)
Last Update:
2:44 am CDT Apr 22, 2026
Forecast Valid:
3am CDT Apr 22, 2026-6pm CDT Apr 28, 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