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.

Overcast with Haze

77°F

25°C

Humidity 85%
Wind Speed SE 9 mph
Barometer 29.86 in (1009.2 mb)
Dewpoint 72°F (22°C)
Visibility 5.00 mi
Heat Index78°F (26°C)
Last update 28 Apr 5:51 am CDT
Extended Forecast for

San Antonio TXSimilar City Names

  • Today

    Today: Cloudy, then gradually becoming mostly sunny, with a high near 93. Heat index values as high as 103. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 93 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Mostly cloudy, with a low around 73. South southeast wind around 5 mph.

    Low: 73 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 89. Light and variable wind becoming east northeast 5 to 10 mph in the afternoon.

    High: 89 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 68. Northeast wind around 10 mph.

    Low: 68 °F

    Slight Chance
    T-storms

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 84. East wind around 10 mph, with gusts as high as 20 mph.

    High: 84 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68. East wind around 10 mph, with gusts as high as 20 mph.

    Low: 68 °F

    Chance
    T-storms

  • Friday

    Friday: Showers likely and possibly a thunderstorm before 1pm, then showers and thunderstorms likely after 1pm. Mostly cloudy, with a high near 79. East wind 10 to 15 mph becoming north northwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 70%.

    High: 79 °F

    Showers
    Likely then
    T-storms
    Likely

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 56. Breezy, with a north wind 20 to 25 mph, with gusts as high as 40 mph.

    Low: 56 °F

    Chance
    T-storms and
    Breezy

  • Saturday

    Saturday: Partly sunny, with a high near 70. North wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 70 °F

    Partly Sunny

Detailed Forecast

Today
Cloudy, then gradually becoming mostly sunny, with a high near 93. Heat index values as high as 103. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Tonight
Mostly cloudy, with a low around 73. South southeast wind around 5 mph.
Wednesday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 89. Light and variable wind becoming east northeast 5 to 10 mph in the afternoon.
Wednesday Night
A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 68. Northeast wind around 10 mph.
Thursday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 84. East wind around 10 mph, with gusts as high as 20 mph.
Thursday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68. East wind around 10 mph, with gusts as high as 20 mph.
Friday
Showers likely and possibly a thunderstorm before 1pm, then showers and thunderstorms likely after 1pm. Mostly cloudy, with a high near 79. East wind 10 to 15 mph becoming north northwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 70%.
Friday Night
A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 56. Breezy, with a north wind 20 to 25 mph, with gusts as high as 40 mph.
Saturday
Partly sunny, with a high near 70. North wind 10 to 15 mph, with gusts as high as 30 mph.
Saturday Night
Mostly clear, with a low around 51.
Sunday
Sunny, with a high near 77.
Sunday Night
Partly cloudy, with a low around 56.
Monday
Partly sunny, with a high near 83.
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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:
5:32 am CDT Apr 28, 2026
Forecast Valid:
5am CDT Apr 28, 2026-6pm CDT May 4, 2026
 
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